The Order organises premium calculation around a modular formula and a series of statutory labels. The main concepts are T (basic tariff premium), S (experience adjustment factor), E (experience premium), A (apprentice incentive amount), I (input tax credit adjustment), Q (premiums adjustment contribution), D (dust diseases contribution) and M (Mine Safety Fund premium adjustment). Clause 3(1) lists these components and declares that the premium P is calculated with respect to a period of insurance not exceeding 12 months; the Schedules provide the computational detail for most components.

Basic tariff premium (T). Schedule 3 prescribes T as the weighted sum of parts of the employer’s wages attributable to industry classes multiplied by the corresponding percentage rates in Table A (Schedule 3 cl 1). For per-capita classes, numerical counts (for example, number of boxing matches or taxi licences) substitute for wages (Schedule 3 cl 2). If the employer fails to provide sufficient information for classification, the business is assigned the class with the highest percentage rate that appears applicable (Schedule 3 cl 2).

Experience adjustment factor (S). Schedule 4 prescribes S based on a formula that depends on the employer’s claims history and whether the employer is a new employer. For established employers with two years’ prior insurance and compliant claim particulars, S is calculated using the formula at Schedule 4 cl 1(a). New employers or those with shorter prior insurance periods have S scaled down (multipliers 0.66 or 0.33). Group membership rules aggregate experience for group calculations (Schedule 4 cl 2). The Authority may reduce S where there have been breaks in insurance on application and subject to criteria and guidelines (Schedule 4 cl 5).

Experience premium (E). Schedule 5 sets E using different formulae depending on timing: initial premium before the expiry of the period of insurance; after expiry where the period is 12 months or more; after expiry where period is less than 12 months; and special formula where employer becomes a Commonwealth Comcare employer. E uses Employer’s Claims Cost Rates (Initial ECCR, Hindsight ECCR), Industry Claims Cost Rates (ICCR1 and ICCR2 from Table B), and cost of claims (C0, C1, C2) and wages (W0, W1, W2) across the current and prior periods (Schedule 5 cl 1). Schedule 5 contains detailed aggregation rules for per-capita classes and group or multi-class employers.

Input tax credit adjustment (I). Schedule 8 provides separate formulae for medium/large employers and small employers, and an adjustment table mapping input tax credit entitlement ranges to a percentage discount B% relative to 100% ITC. If the employer fails to notify ITC entitlement in accordance with clause 134 of the Workers Compensation Regulation 2003, the employer is treated as having 100% entitlement for the purposes of Schedule 8 (Schedule 8 cl 2).

Other concepts. Clause 4 provides an initial premium discount (3%) where conditions are met (12‑month policy, full on‑time payment, no instalments, and notification of estimated wages). Schedule 6 fixes a minimum premium of $175 (Schedule 6 cl 1). Clause 5 prescribes the excess amount for s 160(1) of the Act and ties it to a prompt-notification exemption ($0 if notified within five days) or otherwise to a capped weekly-wage-based amount (clause 5). Clause 6 prescribes the late payment interest rate: 0.961% per month compounded monthly.

Record-keeping regimes. The Order requires employers to keep specific records in order to claim exclusions and compute certain inputs: odometer readings and trip purpose information for motor vehicle allowances under the continuous or averaging methods (Schedule 1 cl 3, Schedule 1 cl 4-7), wage returns in accordance with the regulations (Schedule 1 cl 9), and notices of input tax credit entitlement (Schedule 8 cl 2). Failure to provide required returns or notices produces statutory presumptions that increase premiums or reduce credits (for example, deemed ITC entitlement of 100% if not notified; Schedule 8 cl 2).

Authority and Governor roles. The Order creates administrative discretion and cross-agency decisions. The Authority may develop criteria and guidelines for reducing experience adjustment factors after breaks in insurance (Schedule 4 cl 5) and may issue guidelines for Schedule 7 premium reduction applications (Schedule 7 cl 4). The Governor, on the Authority’s recommendation, may determine different ICCR2 industry rates for Table B classes and notify them in the Gazette (Schedule 5 cl 1).

Tables and external material. The Order depends on Table A (NSW WorkCover Industry Classification System) and Table B (ICCR rates). Schedules 11 and 12 (Table A and Table B) are part of the Order but the text is published in the Gazette (Schedule 1 editorial notes; clause 8). The Order also cross‑refers to external statutes and regulations for definitions and procedural requirements: Workers Compensation Act 1987; Workers Compensation Regulation 2003 (for return and notice obligations, clause references); A New Tax System (GST) Act 1999; Apprenticeship and Traineeship Act 2001; Corporations Act 2001; Safety, Rehabilitation and Compensation Act 1988 (for Comcare definitions).

Employers and insurers are the principal parties affected. The Order governs how insurers calculate premiums for policies issued or renewed to take effect on or after 4 pm on 30 June 2010 and before 4 pm on 30 June 2011 (Schedule 2 cl 1). It applies to employers who are policy holders, including those proposing to become employers (Schedule 1 cl 1 definition of employer). Insurers are directed to apply the formulae and auxiliary rules set out in the Order when determining premiums to demand from employers (clause 3(1) and Schedules 3-10).

Employer sub-groups by size. The Order distinguishes small, medium and large employers for calculation and treatment purposes (Schedule 1 cl 2). The definitions are metric: small employers satisfy T ≤ $10,000 (12‑month equivalent) or total wages ≤ $300,000 (Schedule 1 cl 2); large employers have T > $500,000 (12‑month equivalent) and medium are those in between. These categorizations affect which formulae and caps apply (for example, Schedule 8 makes a distinction between small and medium/large employers when calculating the input tax credit adjustment).

Group structures and predecessors. Employers who are members of a group are affected by aggregation rules. Group membership causes sums of basic tariff premiums and apprentice incentives to be considered together for the purpose of applying caps on experience-adjusted premiums (clause 3(3)). For experience factor and experience premium calculations, group members’ histories and returns are aggregated under Schedule 4 and Schedule 5 rules. Employers that have acquired another business or are successors (predecessors) are affected because predecessor insurance and claims history may be included in calculations (Schedule 1 cl 1(2) on predecessor; Schedule 4 cl 4; Schedule 5 cl 1(3)).

Specific employer categories. Several specific categories are singled out:

• Small employers in per-capita classes (Table A per-capita rates) are given special small-employer definitions and restrictions (Schedule 1 cl 2(2)).
• Employers hiring apprentices receive an apprentice incentive amount A (Schedule 10) that reduces T.
• Employers who become Comcare employers are subject to a particular E calculation in Schedule 5 cl 1(c)(i).
• Employers previously self-insuring have special treatment for experience factor calculation (Schedule 4 cl 3).
• Employers who hire previously injured workers may apply for a premium reduction under Schedule 7, subject to Authority guidelines.

Workers and their payment components. The Order affects how certain wage components are treated for premium purposes. Motor vehicle allowances and accommodation allowances are excluded from wages to specified extents and only after employers keep the records required by the continuous or averaging methods (Schedule 1 cl 3(1)-(7); Schedule 1 cl 4-7). Wages reported under the regulations are the base measure for T and for S/E calculations (Schedule 1 cl 9). Employers’ failure to furnish returns triggers statutory estimation rules (Schedule 1 cl 9(2)).

Regulatory and administrative actors. The NSW WorkCover Authority (the Authority) has powers to issue guidelines and make determinations that affect calculation and eligibility (Schedule 4 cl 5; Schedule 7 cl 4; Schedule 5 cl 1 re Governor on recommendation of Authority). Insurers are required to obtain wage estimates, apply discounts, calculate premiums and charge employers; specialized insurers exempted under clause 147 of the Workers Compensation Regulation 2003 are outside the Order in most respects (Schedule 2 cl 2(1)), though clause 5 (prescribed excess) still applies to specialised insurers (Schedule 2 cl 2(2)).

Other statutes and agencies. Employers and insurers will need to co-ordinate with Commonwealth laws and administrative processes: GST inputs rely on the A New Tax System (GST) Act 1999 for input tax credit definitions (Schedule 1 cl 1); apprenticeship definitions rely on the Apprenticeship and Traineeship Act 2001 (Schedule 1 cl 1); Comcare licensing references the Safety, Rehabilitation and Compensation Act 1988 (Schedule 5 cl 1). The Order therefore interfaces with multiple administrative regimes that employers may already be subject to.

Practical effect on pocket and behaviour. Employers pay the premium calculated under the stated formulae. Behavioural levers include: providing accurate wage and ITC notices to secure favourable T, A and I entries (Schedule 1 cl 9; Schedule 8 cl 2; clause 4(d)); keeping odometer and allowance records to exclude allowances from wages (Schedule 1 cl 3-7); timely notification of workplace injuries to avoid the excess prescribed amount being the wage or cap (clause 5); applying for Authority reductions or premium reductions where available (Schedule 4 cl 5; Schedule 7 cl 4). Insurers decide classification, and absent sufficient employer information may select the highest-rate class (Schedule 3 cl 2; Schedule 10 cl 2(1)).

Duty to calculate premiums in accordance with the Order. Insurers must calculate the premium payable by an employer using the formula and Schedules set out in clause 3(1) and Schedules 3-10. The Order establishes the components and calculation methods (clause 3(1); Schedules 3-10). For renewals or initial premiums the insurer uses the initial premium formulae and may later recalibrate using hindsight calculations in Schedule 5.

Duty to provide returns and notices. Employers must provide returns and notices as required by the Workers Compensation Regulation 2003 in order to secure accurate calculations. Schedule 1 cl 9 requires a reasonable estimate of wages (used for T) and employers are required to furnish returns to the insurer in accordance with the regulations; clause 4(d) makes that notification a condition of the 3% discount. Schedule 8 cl 2 states that if an employer fails to notify the insurer of the input tax credit entitlement in accordance with clause 134 of the Regulation, the employer is taken to have 100% entitlement (which affects I). Schedule 5 cl 2 allows insurers to use prior tariff calculations as W1 if employers fail to supply a wages notice required by the regulations.

Record-keeping duty for allowances. Employers choosing to exclude motor vehicle and accommodation allowances must keep the records required by the chosen method. Schedule 1 cl 3 provides the rates and says the employer may choose the continuous recording calculation method (Schedule 1 cl 4) or the averaging calculation method (Schedule 1 cl 5). The continuous method requires odometer readings and trip purpose per journey (Schedule 1 cl 4). The averaging method requires specific 12-week records and provides carry-forward rules for up to four subsequent policy periods, subject to Authority notice (Schedule 1 cl 5(1)-(7)).

Right to discounts and reductions. Employers have a right to a 3% initial premium discount where conditions are met (clause 4). Employers may be eligible for apprentice incentive amounts under Schedule 10 which reduce the basic tariff premium. Employers hiring previously injured workers can apply under Schedule 7 for a premium reduction, subject to Authority guidelines (Schedule 7 cl 4). Employers may apply to the Authority for a reduction of the experience adjustment factor where there have been breaks in insurance (Schedule 4 cl 5).

Employer obligation on excess repayment. Clause 5 specifies the prescribed excess amount for s 160(1). Under s 160(2) of the Act (referred to in the Order’s note and clause 5), an employer must repay the prescribed excess amount to the insurer for each weekly compensation claim that the insurer has paid under the policy. The Order fixes the amounts and the condition for $0 excess for timely notification (clause 5).

Insurer discretion and duties. Insurers may classify employers based on returns or other information and, in the absence of sufficient information, must classify the business in the class with the highest percentage rate that appears applicable (Schedule 3 cl 2; Schedule 10 cl 2(1)). Insurers may calculate initial E using estimates and later adjust using hindsight ECCR or other post‑period data per Schedule 5. Insurers must also apply the minimum premium rule (Schedule 6) and the late payment interest rate prescribed (clause 6) where the Act so requires.

Authority and Governor functions. The Authority may develop criteria and issue guidelines for reductions in S and for Schedule 7 applications (Schedule 4 cl 5; Schedule 7 cl 4). The Governor may, on the Authority’s recommendation, determine different Industry Claims Cost Rates (ICCR2) and notify them in the Gazette (Schedule 5 cl 1(b)). These administrative powers affect eligibility and numeric inputs.

Consequences of non-compliance. The Order sets presumptions and default calculations that operate where employers fail to supply notice or returns (Schedule 1 cl 9(2) , estimate × 1.3 rule; Schedule 8 cl 2 , 100% ITC assumption; Schedule 3 cl 2 , highest classification by default). Insurers are entitled to increase premiums to the minimum where calculated premiums would be below the minimum (Schedule 6). The Order itself does not list criminal penalties, but refers to Act provisions (ss 160, 170, 172) that carry their own enforcement regimes; for example, an employer’s repayment obligation under s 160(2) is triggered by the prescribed excess specified in clause 5.

Procedural rights: applications and guidelines. Employers have procedural rights to apply to the Authority for reductions (Schedule 4 cl 5 for S reductions; Schedule 7 cl 4 for premium reductions for previously injured workers). The Authority may issue guidelines specifying application form, evidence and continuity rules for Schedule 7 (Schedule 7 cl 4). The Order also permits the Authority to set criteria and issue guidelines for reductions (Schedule 4 cl 5).

The Order itself is largely prescriptive and administrative; it contains few standalone offences or penalties. Enforcement of obligations and the effect of non‑compliance is primarily achieved by statutory presumptions, monetary adjustments and interactions with the Act and the Workers Compensation Regulation 2003.

Monetary adjustments and presumptions. The Order creates automatic financial effects where an employer fails to provide required information:

• Input tax credit failure: if an employer fails to notify input tax credit entitlement per clause 134 of the Regulation, Schedule 8 cl 2 deems the employer’s ITC entitlement to be 100%, which reduces any I adjustment that would otherwise lower the premium; this functions as an adverse default for employers who actually have less entitlement.
• Wages returns failure: Schedule 1 cl 9(2) states that if an employer fails to furnish returns and the monetary value of wages has not been ascertained, an estimate is taken to be the immediately preceding equivalent period’s wages multiplied by 1.3. That increases the T base for premium calculation absent returns.
• Classification failure: Schedule 3 cl 2 requires insurers to use the class with the highest percentage rate that appears to be applicable where insufficient information is supplied, raising T in the employer’s favour.
• Missing wage notice for apprentice incentive: Schedule 10 cl 2(2) takes A to be zero if the employer has not supplied the required wages notice for the period, removing the apprentice incentive.

Minimum premium enforcement. Schedule 6 mandates a $175 minimum premium; insurers must increase premiums to the minimum where the calculated premium would otherwise be lower (Schedule 6 cl 2).

Interest and recovery. Clause 6 prescribes the rate for late payment for the purposes of ss 170(8) and 172(5) of the Act: 0.961% per month, compounded monthly. That rate is applicable where the Act or the regulation imposes interest on late payments. Clause 5 sets the prescribed excess amount for s 160(1) of the Act, and under s 160(2) (cited in the Order) the employer must repay that excess for each weekly compensation claim that the insurer has paid. The Order therefore fixes the measure of the employer’s repayment liability where that Act provision applies.

Administrative enforcement by the Authority. The Authority is given administrative functions that can affect premiums and obligations: it may develop criteria and guidelines for reduction of S following breaks in insurance and may accept applications to reduce S (Schedule 4 cl 5); it may issue guidelines for Schedule 7 application processes and continuity rules (Schedule 7 cl 4). The Order does not set penalties for misrepresentations to the Authority but the operational effect are administrative denials or recalculation of S or premium.

Discretionary determinations and technical enforcement. Insurers have discretion to apply formulas and default rules; if an employer disputes the insurer’s calculation, the dispute would be dealt with under existing administrative or dispute mechanisms within the Act and the regulator rather than by the Order itself. The Order gives no express new criminal enforcement mechanisms; enforcement is realised through the Act’s existing repayment, debt and interest provisions (s 160, s 170, s 172) and the regulatory regime requiring returns and notices referenced throughout (Workers Compensation Regulation 2003).

Other financial caps and set amounts. The Order prescribes numeric caps that will cap employer liability when they apply (clause 3(2) and 3(3) impose caps on experience-adjusted premiums by multiplier of T; clause 5 specifies the $1,716.40 cap relevant to the prescribed excess and Schedule 7 and clause 7 repeat $1,716.40 in another context). These caps operate within the insurer’s calculations and thus limit particular exposures, but the insurer retains the duty to apply the correct cap; incorrect application would be subject to administrative corrections.

Interaction with external enforcement regimes. The Order cross-references the Act and the Workers Compensation Regulation 2003 for the substantive enforcement mechanisms (repayment obligations and interest). It also directs employers to follow GST law (A New Tax System (Goods and Services Tax) Act 1999) in relation to input tax credit entitlements (Schedule 1 cl 1). Consequently, penalties or liabilities arising under those statutes remain in force and are the primary enforcement levers.

The Order is explicitly cross‑referential to several statutes and regulations, and its operation depends on and feeds into existing legal regimes. Key interactions include:

Workers Compensation Act 1987. The Order operates under the Act and repeatedly references and supplies numbers for provisions of the Act. Clause 3 sets out premium calculation mechanics “for the purposes of the Act”. Clause 5 specifies the prescribed excess amount for the definition in s 160(1) of the Act and notes s 160(2) imposes a repayment obligation on employers. Clause 6 sets the prescribed rate for ss 170(8) and 172(5) of the Act (late payment rates). Several definitions (for example, policy, insurer, period of insurance) and the overall context are drawn from the Act (Schedule 1 cl 1). The Order therefore complements and specifies parameters for duties and liabilities created in the Act.

Workers Compensation Regulation 2003. The Order depends on obligations placed on employers and insurers by the Regulation. Clause 4(d) requires employers to have notified the insurer of a reasonable estimate of wages “in accordance with the regulations” to qualify for the 3% discount; Schedule 1 refers to clause 130 of the Regulation (editorial note) as requiring that notice. Schedule 8 cl 2 references clause 134 of the Regulation for ITC entitlement notifications. Schedule 5 cl 2 permits insurers to use prior basic tariff calculations where employers failed to supply a required wages notice per clause 130(2) of the Regulation. The Order prescribes consequences where regulatory notices or returns are not furnished.

A New Tax System (Goods and Services Tax) Act 1999 (Commonwealth). The Order imports GST terminology and interaction rules. Schedule 1 cl 1 imports the GST definition and Schedule 8 computes an input tax credit adjustment (I) using an employer’s input tax credit entitlement as defined under the GST Act. Employers’ GST entitlements determine B% in the Schedule 8 table, and failure to notify ITC entitlement leads to a default (Schedule 8 cl 2). This interaction requires employers to align their GST reporting with premium calculations.

Apprenticeship and Traineeship Act 2001. Schedule 1 cl 1 imports the definition of apprentice from that Act and Schedule 10 computes the apprentice incentive amount based on wages payable to apprentices under apprenticeship contracts. Therefore eligibility and the meaning of apprenticeship wages depend on the Commonwealth/State apprenticeship definition.

Corporations Act 2001. Schedule 1 cl 1 uses the term limited proprietary company with reference to s 112 of the Corporations Act. Schedule 5 and Schedule 4 refer to related corporations and predecessor relationships; Schedule 3 and others look to corporate relationships when dealing with group membership or predecessor matters. The Corporations Act definitions therefore affect grouping and predecessor rules.

Safety, Rehabilitation and Compensation Act 1988 (Commonwealth). Schedule 5 defines “Comcare employer” by reference to that Commonwealth Act, which affects the formula used for employers who become licensed under that Act. Employers moving between state and Commonwealth schemes are therefore treated differently under the Order.

Gazette and Tables. Schedule 1 notes that Table A (Schedule 11) and Table B (Schedule 12) are printed in the Gazette (Gazette No 81 of 18.6.2010). The Order delegates to those tables the detailed industry classification and ICCR rates; changes or corrections to those tables may therefore be effected by Gazette publication and will alter the components (T and ICCR) of the premium calculations.

Administrative law and decision-making. The Authority is given scope to create guidelines and criteria (Schedule 4 cl 5; Schedule 7 cl 4) and to make recommendations to the Governor for ICCR2 changes (Schedule 5 cl 1). Those administrative acts interact with administrative law principles and the Authority’s statutory powers under the Act. Insurers’ classification decisions interact with the Regulation’s return requirements and with the Authority’s guidelines.

Repayment and interest under the Act. The Order supplies numeric values and rules that plug directly into repayment (s 160) and interest provisions (ss 170, 172) of the Act, thereby determining the monetary dimensions of liabilities created under the Act.

In short, the Order does not operate in isolation: it prescribes numeric and procedural inputs that are consumed by the Act and the Workers Compensation Regulation 2003, relies on Commonwealth GST and apprenticeship law to define inputs, and creates administrative functions for the Authority and Governor that can change industry-specific inputs. Compliance therefore requires simultaneous attention to the Order, the Act, the Regulation, the GST Act, apprenticeship legislation and published Tables in the Gazette.

The text provided identifies this instrument as the Insurance Premiums Order 2010-2011 (clause 1). It commenced at 4 pm on 30 June 2010 and was to be published in the Gazette (clause 2). Schedules 1-12 form part of the Order (clause 8), and editorial notes indicate Table A (Schedule 11) and Table B (Schedule 12) were published in Gazette No 81 of 18.6.2010, with specific page references for Schedule 11 at p 2503 and Schedule 12 at p 2845 (Schedule 1 editorial notes).

The Order itself contains no express amendment history entries within the text supplied. It does, however, provide mechanisms that permit future administrative adjustments without amending the Order text directly:

• The Governor, on the recommendation of the Authority, may determine different Industry Claims Cost Rates (ICCR2) for classes and notify them in the Gazette (Schedule 5 cl 1(b)), thus enabling industry rate changes via Gazette notice rather than amending the Order clauses.
• The Authority is empowered to develop criteria and issue guidelines for reducing experience adjustment factors and for premium reduction applications (Schedule 4 cl 5; Schedule 7 cl 4), which will be administrative instruments that may be updated without formal amendment of the Order.
• The Tables (Schedules 11 and 12) are included in the Gazette references, meaning updates to the published tables could be effected by subsequent Gazette notices or by separate instrument-making processes depending on the statutory scheme.

If a reader needs to trace subsequent changes, the appropriate method is to consult:

• consolidated legislative databases for amendments to the Order after 30 June 2010,
• Gazette notices for any ICCR2 determinations or updated Table A/B publications,
• any subsequent Insurance Premiums Orders (the Order itself anticipates that a future order will be made for policies taking effect after 30 June 2011; Schedule 2 cl 1(2) provides that, in the absence of a later order, this Order continues to apply pending a new order).

Given the provided text contains no later amendment schedule, no formal amendment entries (such as “amended by ...”) are available in the source material supplied. Users requiring definitive amendment history should consult the NSW legislation register, consolidated statutes for the Order, and Gazette publications subsequent to 18 June 2010 for any ICCR or Table updates, or later Insurance Premiums Orders for the 2011-2012 period and beyond.

The supplied Order text contains no references to litigation, court decisions, or administrative appeals involving this instrument. It names no cases and does not include a schedule of judicial determinations. The Order is an administrative pricing and classification instrument rather than a penal or novel jurisdictional statute; accordingly, disputes arising from its application would typically be channelled through:

• administrative review mechanisms under the Act and the regulations (for disputes about premium calculations, classification, or Authority determinations),
• statutory review or appeal routes set out in the Act or other relevant procedural rules,
• civil proceedings for debt, repayment or restitution where insurers or employers litigate amounts owed under insurance policy terms or the Act.

Because the Order cross-references provisions of the Workers Compensation Act 1987 (for example, ss 160, 170, 172) and the Workers Compensation Regulation 2003 (for returns and notices), litigation on issues such as recovery of prescribed excesses, late payment interest, or disputes about return-based presumptions would necessarily engage those statutes and any relevant case law interpreting them. The Order’s content,formulae, tables and default rules,would be evidence and the operational basis for insurers’ calculations; litigation would focus on whether the statutory formulas were applied correctly and whether requisite notices and returns were provided.

Users needing current litigation or administrative review history should consult decisions repositories, tribunal or court records and the Authority’s published decisions for the period after 30 June 2010. The source provided does not supply any case law or adjudicative history.

The Order contains several technical features that can produce unintended cost or compliance outcomes if not handled deliberately. Below are concrete “gotchas” rooted in the text.

Group aggregation removes individual caps. Clause 3(2) caps the experience-adjusted premium for individual employers by reference to basic tariff bands (T−A). Clause 3(3) then states that if the employer is a member of a group, subclause (2) does not apply and the caps are instead determined by the sum of basic tariff premiums less apprentice incentive amounts for the entire group (TG−AG). Mechanism: group aggregation may increase or decrease the applicable cap for any member; employers should identify whether they qualify as a group under the Order (Schedule 1 cl 2(3) and related grouping rules) because caps that would otherwise limit an employer’s premium volatility may not apply at the single‑employer level when the group aggregation rule is invoked.

Failure to supply wages/ITC notices produces adverse defaults. Schedule 1 cl 9(2) creates a formulaic adverse default where an employer fails to furnish returns: the prior period’s wages are multiplied by 1.3 for current calculation. Schedule 8 cl 2 treats failure to notify input tax credit entitlement as a 100% entitlement default (which affects I). Schedule 10 cl 2(2) sets A to zero if the required wages notice is missing. Mechanism: missing notices increase the base tariff or remove incentives, so ensure timely and correct wage and ITC notices to insurers.

Minimum premium applies after discount. Schedule 6 cl 3 says the reference to the premium that would be payable includes premiums discounted under clause 4. Mechanism: even after applying the 3% discount (clause 4), the insurer must bump the discounted premium up to the $175 minimum if the discounted result is below the minimum. Employers expecting a near-zero premium because their calculated premium is very small will still pay the $175.

Classification default is the highest rate. Schedule 3 cl 2 instructs insurers to classify a business in the class with the highest percentage rate that appears applicable if the employer does not supply sufficient classification information. Mechanism: incomplete or ambiguous business descriptions can lead to assignment to a higher rate class, increasing T.

Odometer methods have lock-in and record-retention quirks. If an employer chooses the averaging method (Schedule 1 cl 5), that method requires detailed 12‑week odometer recording for the first period and then permits using that percentage for the next four periods of insurance unless the Authority directs otherwise or the employer wants to re-record. Mechanism: adopting averaging reduces record burdens in future periods but requires accurate initial records and obliges the employer to re-record after five successive periods. Failure to maintain or supply odometer readings where required risks disallowing exclusion of allowances.

Experience factor reduction is discretionary and needs Authority application. Schedule 4 cl 5 permits the Authority to reduce S where there have been breaks in insurance, but only on application and subject to criteria that the Authority “may develop” and guidelines it “may issue”. Mechanism: there is no automatic reduction; employers with gaps must apply and be assessed under Authority criteria that may be unpublished at the time of application.

Caps on experience-adjusted premium expressed relative to T−A. Clause 3(2) uses T−A (basic tariff premium less apprentice incentive) as the denominator for caps on the experience adjusted premium. Mechanism: large apprentice incentive amounts reduce the denominator and may change the cap boundary; employers and brokers should check the sequencing of A and application of caps.

Multiple instruments and Gazette tables control inputs. Table A and Table B (Schedules 11 and 12) contain the class rates and ICCRs; the Order’s calculations depend on those tables published in the Gazette (Schedule 1 editorial notes). Mechanism: changes to those tables by Gazette notice or later orders will change T or ICCR inputs without the need to amend the core Order language.

Currency of numeric caps and indices. The Order contains specific dollar figures that anchor liabilities ($175 minimum premium; $1,716.40 cap in clause 5 and clause 7). Mechanism: these fixed figures apply to the 2010-2011 period. Users must check for updated Orders or subsequent instruments before applying the same numbers in later years.

Small employer special rules for per-capita classes. Schedule 1 cl 2(2) says for employers in some per-capita classes, the small-employer test is applied only by reference to basic tariff premium (not wages). Mechanism: employers in per-capita classes should not rely on the wages test when assessing small employer status; per-capita counts determine T directly and the small employer classification depends on T.

Late payment rate compounding. Clause 6 prescribes 0.961% per month compounded monthly for ss 170(8) and 172(5) of the Act. Mechanism: monthly compounding leads to a higher effective annual rate than simple 12× monthly rate. Check accounting for compounding in ledger systems and client advice.

Experience premium complexity and data demands. Schedule 5 requires multiple historical inputs (C0, C1, C2; W0, W1, W2) and computed ECCRs and ICCRs, including industry‑weighted ICCR calculations where multiple classes apply (Schedule 5 cl 1(7)). Mechanism: insurers and employers must retain and provide accurate historical claim cost and wages data for at least two prior 12‑month periods, and correctly handle per-capita components and multi-class apportionments.

Compliance requires accurate data, timely notices, systematic record-keeping, and awareness of grouping, classification and special categories. Below is a practical checklist with references to the clauses and Schedules so practitioners can map obligations to statutory text.

1. Check temporal application. Confirm that the policy to be priced falls within the Order’s period: effective on or after 4 pm 30 June 2010 and before 4 pm 30 June 2011 (Schedule 2 cl 1). If advising on later policies, confirm whether a subsequent Insurance Premiums Order applies.

2. Determine employer size and group status. Calculate T (basic tariff premium) on a 12‑month equivalent basis per Schedule 3 cl 1 and Schedule 1 cl 2. Classify the employer as small, medium or large using Schedule 1 cl 2 definitions; if the employer is part of a group, aggregate basic tariff premiums and wages across the group where the Order requires it (Schedule 1 cl 2(3); clause 3(3)).

3. Classify the business using Table A. Use Table A (Schedule 11) to identify the applicable class(es) and percentage rates (Schedule 3 cl 1). For per‑capita classes substitute the relevant numerical count for wages (Schedule 3 cl 2; Schedule 5 cl 1(4)). If the employer cannot provide sufficient information, expect classification in the highest‑rate class (Schedule 3 cl 2); advise clients to supply accurate returns and business descriptions to avoid this.

4. Prepare and submit wage notices and returns. Employers must notify the insurer of a reasonable estimate of wages in accordance with the regulations to qualify for the 3% discount (clause 4(d)). Furnish wage returns required by the Workers Compensation Regulation 2003 (Schedule 1 cl 9) promptly because missing returns may trigger the 1.3 multiplier default for wages (Schedule 1 cl 9(2)) and affect W1/W2 in experience premium calculations (Schedule 5 cl 1 and cl 2).

5. Keep GST/input tax credit records and notify the insurer of ITC entitlement. Compute the employer’s input tax credit entitlement in accordance with the A New Tax System (GST) Act 1999 and notify the insurer per clause 134 of the Regulation; failure to notify is treated as 100% entitlement under Schedule 8 cl 2 which will affect the I calculation. Use the Schedule 8 table to anticipate how B% will be applied based on entitlement bands.

6. Calculate the components in sequence.

   • Compute T from Schedule 3 using wages and Table A rates (Schedule 3 cl 1).
   • Compute A (apprentice incentive) from Schedule 10 if apprentices present and ensure the necessary wages notice for apprentices has been supplied (Schedule 10 cl 1-2).
   • Determine S using Schedule 4. This requires claims particulars for the prior two years (Schedule 4 cl 1). If the employer is new or was previously self-insured, apply the multipliers and special rules (Schedule 4 cl 1(b)-(d); cl 3).
   • Compute E according to Schedule 5. This will require claim cost totals (C0, C1, C2) and wages (W0, W1, W2) and industry ICCR values from Table B (Schedule 5 cl 1). Keep documentation of claim costs and wage totals for the relevant prior periods.
   • Compute Q (premiums adjustment contribution) and D (dust diseases contribution) as required by definitions (Schedule 1 cl 1) and any applicable regulation/Act provisions.
   • Apply I (Schedule 8), using the appropriate formula for small vs medium/large employers and the B% mapping table.
   • Compute M (Schedule 9) for employers with wages attributable to Division B classes (classes 120000 to 152000) using RMSF 0.723%.
   • Combine components into P per clause 3(1) and apply any caps per clause 3(2)-(3).

7. Apply caps and minimums carefully. After computing the experience‑adjusted premium, check the caps in clause 3(2) (1.5×, 2× or 2.5× thresholds depending on T−A bands) and clause 3(3) for group rules. Then ensure the premium is at least the minimum $175 per Schedule 6 cl 1-3. If the employer claims the 3% discount, remember Schedule 6 cl 3 treats the minimum after discount; the employer cannot get below $175 after applying the discount.

8. Manage allowances and odometer records. If motor vehicle or accommodation allowances are paid and you intend to exclude them from wages, choose and adopt one of the permitted methods:

   • Continuous recording method: maintain journey-by-journey odometer readings and trip purpose (Schedule 1 cl 4).
   • Averaging method: keep detailed 12-week odometer and vehicle distance records for the first period of insurance and then apply the established percentages for up to the next four successive periods, unless the Authority directs otherwise or the employer opts to re-record (Schedule 1 cl 5(1)-(5)). Record replacement odometer readings where relevant (Schedule 1 cl 5(6)). Remember accommodation allowances are excluded only up to prescribed per-night rates (Schedule 1 cl 3(4)-(5)).

9. Timely notify injuries to secure $0 excess where applicable. Clause 5 provides that if the employer notified the relevant insurance scheme agent of the injury within five days of becoming aware of it, the prescribed excess amount is $0. Employers should have internal processes to report injuries promptly to avoid the otherwise applicable lesser-of-weekly-wage-or-$1,716.40 excess.

10. Pay on time or expect late interest. If payments are late and the Act’s late payment provisions apply, the interest rate to be used is 0.961% per month compounded monthly (clause 6). Budget for this compounding when calculating potential late-payment liabilities.

11. Make Authority applications where appropriate. If there have been breaks in insurance and you seek a reduction of S, apply to the Authority under Schedule 4 cl 5 and follow any criteria and guidelines the Authority publishes. Similarly, for Schedule 7 reductions relating to previously injured workers, follow Authority guidelines and submit the required documentation (Schedule 7 cl 4).

12. Retain and organise historical data. Schedule 5 requires two prior periods’ data for calculating E (C1/C2 and W1/W2). Maintain claim cost records, wages data and any predecessor business records where acquisitions occurred (Schedule 5 cl 1(3); Schedule 3 cl 1). If an employer was previously self-insured, follow Schedule 4 cl 3 rules that treat self‑insured periods as if insured for S calculation.

13. Coordinate with brokers and insurers for multi-class and group employers. For employers with multiple classes in Table A, compute ICCR as a weighted composite per Schedule 5 cl 1(7). For group changes (departing members), apply Schedule 5 cl 4 mechanisms for apportioning cost of claims and wages.

14. Documentation for audits and disputes. Keep copies of all wage notices, GST input tax credit notices, odometer logs, apprentice wage records, claims particulars and any authority correspondence or decisions. These documents are the basis for challenging insurer classification or calculation errors.

15. Check Gazette and updated Tables. Since Table A and Table B are Gazette-published, verify you have the correct versions from Gazette No 81 of 18.6.2010 or any later notices that might have changed ICCR or class rates (Schedule 1 editorial notes; Schedule 5 cl 1(b)).

By following this sequence and maintaining an auditable record trail, employers and their advisers can ensure the premiums demanded comply with the Order’s formulas and that common default traps are avoided. Where Authority discretion or group aggregation issues arise, lodge applications or seek pre-emptive guidance from the Authority to reduce the risk of adverse calculation outcomes.