Radiocommunications (Spectrum Licence Tax) Determination 2021

The Determination hinges on a small set of technical concepts that concretely determine the tax payable. Each concept is defined in the instrument and is operationalised through the calculation steps in Schedules 1 and 2.

• Designated Spectrum Licence (s 5(1)). This is a spectrum licence issued under Part 3.2 of the Radiocommunications Act 1992, subject to a set of exemptions. The exclusions are: licences issued to a Department of State of the Commonwealth, an Executive Agency under s 65 of the Public Service Act 1999, or a Statutory Agency within the meaning of s 7 of the Public Service Act 1999; licences conditioned to allow use only for television outside broadcast services; and licences conditioned to allow use only for rail safety, rail operations or rail control. The Determination therefore bifurcates licences between those that are "Designated" and those that are not, with only Designated licences attracting the EME Component (section 8).

• Main Component (Schedule 1). This is the core per-licence calculation. Core inputs are:

  • Base amount (Schedule 1 cl 2 and table). The table enumerates relevant frequency bands (column 1), the "total specified spectrum" for each band used as the denominator for SL bandwidth (column 2), and a base amount in dollars (column 3). Examples: for 3.4-3.8 GHz the base amount is $221,376 with total specified spectrum 400 MHz (item 9); for various millimetre-wave bands (items 10 and 11) the base amounts are much lower despite large "total specified spectrum" entries.
  • SL bandwidth (cl 2(2)). Defined as the number of MHz in the licensed frequency range that fall within the relevant frequency band.
  • Area population and Australian population (Schedule 1 cl 1). Area population is taken from the HCIS population data document; Australian population is fixed in the Determination as 25,362,351.
  • Licensed frequency range and geographic area (Schedule 1 cl 1 definitions). These derive from core conditions mentioned in paragraph 66(1)(a) and (c) of the Radiocommunications Act 1992, so the Determination relies on licence text to identify the relevant geographic area and frequency fragments for calculation.

• Timing and prorating (Schedule 1 cl 3). The Main Component is calculated on the initial holding date and on each anniversary. The last anniversary before expiry is treated differently: the prorating factor is days/365 for the days from the last anniversary to the licence expiry date (Step 1B). Rounding rules are specified (Step 2) and a statutory minimum applies: the Main Component cannot be less than $7 (Step 3).

• Discounts and special minima (Schedule 1 cl 3(4) and (5)). If a licence authorises spectrum in either 2570-2585 MHz or 2605-2620 MHz, the aggregated Step 1 amounts are reduced by one third (then rounded). If a licence authorises only the narrow bands 824-825 MHz and 869-870 MHz and no other part of the spectrum, the Main Component is a flat $7.

• EME Component (Schedule 2). For Designated licences only. Defined in terms of a fixed total annual EME pool and pro rata allocation by each licence’s MCL share of the sum of MCLs for all Designated licences on 11 October in that financial year. The pool for 2025-26 is stated as $2,134,433.17 (Schedule 2 cl 1). The Determination notes an external direction (the ACMA Direction 2020) requiring increases to the total annual EME Component from 2023-24 and in subsequent years; the Determination therefore does not itself specify a multi-year escalation schedule, but it links the pool size to a separate instrument (Schedule 2 note).

• References to external data instruments. The HCIS population data document and Australian Spectrum Map Grid 2012 are incorporated by reference (Schedule 1 cl 1 notes). The HCIS population data used is fixed as existing at the commencement of the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1), which is discussed in the notes.

The Determination is a rules-based, mechanical pricing schedule rather than a discretionary allowance. It translates licence geometry (MHz and geography) and fixed numeric parameters (base amounts, Australian population) into a dollar tax on specific dates. The EME Component is a fixed-pool redistribution across the population of Designated licences according to their contribution to total Main Components on a specified date.

Primary economic incidence

• Spectrum licence holders. The Determination determines the dollar amount of the spectrum licence tax attributable to each spectrum licence; the immediate economic incidence falls on the holders of spectrum licences issued under Part 3.2 of the Radiocommunications Act 1992, subject to the definitions and exclusions in section 5. For licences that are Designated Spectrum Licences the payable tax comprises the Main Component plus the EME Component (section 8). For non‑Designated licences the payable tax is the Main Component only (section 8(2)-(3)).

Differential treatment

• Public-sector licence holders. Licences issued to Commonwealth Departments of State, Executive Agencies under s 65 of the Public Service Act 1999, and Statutory Agencies as defined by s 7 of the Public Service Act 1999 are excluded from the "Designated" class (section 5(1)(a)). Those licences will therefore not attract the EME Component; they still attract the Main Component unless another exclusion or special rule applies. The instrument thus imposes the EME pool only on a subset of Part 3.2 licences.

• Narrow-purpose licences. Licences restricted by conditions to television outside broadcast services or to rail safety, rail operations or rail control are excluded from being Designated (section 5(1)(b)-(c)). They are therefore not allocated a share of the EME pool, but remain subject to the Main Component.

• Licences using certain frequency bands. Licences that authorise spectrum in 2570-2585 MHz or 2605-2620 MHz attract a particular Step 2 discount to their Main Component (Schedule 1 cl 3(4)). Licences that authorise only the narrow pairs 824-825 MHz and 869-870 MHz see their Main Component set at the $7 minimum (Schedule 1 cl 3(5)). Thus holders of those licences face lower Main Components than they otherwise would.

Operationally affected parties and tasks

• Compliance and accounting teams of licence holders. They must identify licence-specific core conditions (licensed frequency ranges and geographic areas), map those to the HCIS population data document, compute SL bandwidths per relevant frequency band, apply the base-amount table (Schedule 1 cl 2), observe rounding and minimum rules (Schedule 1 cl 3), and for Designated licences calculate and track MCLs on 11 October for the EME allocation (Schedule 2).

• ACMA (Australian Communications and Media Authority) as data provider. The Determination explicitly references the HCIS population data document and the Australian Spectrum Map Grid 2012 as data sources (Schedule 1 cl 1 notes), both of which ACMA publishes. It also references an ACMA direction (the Modifications to Apparatus and Spectrum Licences Taxes Direction 2020) that requires increases to the EME pool from 2023-24 (Schedule 2 note). The Determination therefore relies on ACMA-produced inputs for application.

Timing sensitivity

• Licences near 11 October dates. Initial holding dates and anniversary dates are expressly centred on 11 October (section 7 and Schedule 2 definition of MCL). Whether a licence is in force on 11 October of a year matters for which year's calculation applies and, for Designated licences, influences the total Main Component against which EME allocations are made (Schedule 2 cl 1).

Secondary effects and market signals

• Spectrum pricing and commercial decisions. The tax produces a per‑licence cost that depends on geographic population coverage and bandwidth within specified relevant frequency bands. Licences covering large populations or larger SL bandwidths will face proportionately larger Main Components. The EME pool reallocates an additional fixed amount across Designated licences proportionally. Firms with multiple licences or licences concentrated in high-base bands (for example the 3.4-3.8 GHz band with a high base amount in the table) will face larger absolute tax charges and therefore have an incentive to factor these amounts into price, investment and network architecture decisions.

• Administrative burden for small licences. The minimum Main Component is $7, but the calculation steps may still require data work even where the final charge is small. This matters for holders of narrow or low-population licences.

What the Determination does not cover

• Collection, penalties and dispute-resolution mechanisms are not included. The Determination supplies arithmetic and data inputs only. The Act governs enforcement, payment timing and sanctions. Practitioners must therefore consult the Act and related instruments for collection mechanics and penalties.

Duties imposed by the Determination are implementation duties: apply the specified formulae and inputs to ascertain the quantum of the tax for each licence. The Determination does not expressly prescribe administrative duties such as lodging returns; those functions are in the Act. Nevertheless, the Determination creates concrete obligations for those who must calculate or verify tax amounts.

Compute and apply formulae

• Duty to use the specified definitions and parameters. A licence’s Main Component must be computed by following the Step 1A/1B, Step 2 (or substituted Step 2 where relevant) and Step 3 sequence in Schedule 1 cl 3. This requires using the base amount for each relevant frequency band from Schedule 1 cl 2 table, the SL bandwidth (cl 2(2)), the HCIS area population and the fixed Australian population number (Schedule 1 cl 1).

• Duty to prorate on expiry. For the tax imposed on the last anniversary of a licence that expires before the following anniversary, the calculation uses Step 1B which multiplies by (days/365) where days are the number of days from the last anniversary to expiry (Schedule 1 cl 3(2) and Step 1B subparagraphs (d)-(e)). This requires accurate calculation of days in the inter-anniversary period.

• Duty to apply discount rules where applicable. If a licence authorises spectrum in the specified mid-band ranges (2570-2585 MHz or 2605-2620 MHz), Step 2 is replaced by a discounted Step 2 that reduces the aggregate by one third before rounding (Schedule 1 cl 3(4)). For licences that authorise only the narrow 824-825 and 869-870 bands and no other spectrum, the Main Component is set at $7 (Schedule 1 cl 3(5)).

• Duty to compute the EME Component for Designated licences. For each Designated licence, the EME Component for the tax imposed in a financial year is the product of (MCL / total Main Component) times the total annual EME Component for that year, with the result rounded down to the nearest whole dollar if not already whole (Schedule 2 cl 2). MCL is defined as the Main Component calculated on 11 October in that financial year (Schedule 2 cl 1).

Rights and interpretive anchors

• Right to rely on specified external data documents. The Determination directs users to the HCIS population data document and Australian Spectrum Map Grid 2012 for population and geographic mapping (Schedule 1 cl 1 notes). These documents are incorporated by reference as they exist at the commencement of a named amendment Determination (Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1)). Practitioners may therefore treat those external documents as the authoritative population and geographic inputs for the calculation.

• Interpretive certainty of numeric parameters. The Australian population is fixed in the Determination as 25,362,351 for the purposes of the instrument (Schedule 1 cl 1). Base amounts and total specified spectrum values are listed in the table in Schedule 1 cl 2. The total annual EME Component for 2025-26 is stated explicitly (Schedule 2 cl 1). Users are entitled to apply these numeric anchors without further inquiry unless and until the Determination or referenced instruments are lawfully amended.

No enforcement details included

• Absence of statutory collection terms in the Determination. The Determination does not set out payment mechanisms, notices, refund processes, or penalty regimes. Practitioners cannot infer from this instrument the timing of payment, the authority to issue assessments or the remedies for disputed assessments. Those procedural matters remain under the Act and any other applicable legislation; they are not supplied here.

Recordkeeping, audit and evidentiary implications

• Implicit duty to maintain calculational records. Because the tax is a computed figure depending on licence text, geographic identifiers and HCIS population data, compliance will require licence holders to retain contemporaneous records that show how area populations were obtained and how SL bandwidths were computed. The Determination’s reliance on external data documents and license-specific core conditions means that those records will be the primary means to justify or dispute a computed amount.

The Determination itself contains no penalty provisions, nor does it set out the administrative enforcement mechanisms for collection of the tax. It is an enabling schedule that prescribes how to calculate the amount of tax in relation to a spectrum licence; enforcement and penalties must be found in the Act or other instruments. The Determination does, however, create features that have enforcement implications which practitioners should note.

Separation of quantification and collection

• Determination prescribes quantification only. Section 8 sets out that the amount of spectrum licence tax is "ascertained in accordance with this section", and then directs that the Main Component or Main plus EME components are the applicable amounts. Thereafter, the Act provides authority for imposing and collecting the tax; the Determination does not. Consequently, legal mechanisms for assessment notices, recovery, interest on overdue amounts and civil or criminal penalties (if any) are those contained in the Act and are not restated here. Users should consult the Radiocommunications (Spectrum Licence Tax) Act 1997 for those measures.

Practical enforcement implications deriving from the Determination

• Rounding and truncation rules. The Determination specifies rounding rules (Schedule 1 cl 3 Step 2; Schedule 2 cl 2 Step 2) and that the EME Component is rounded down to the nearest dollar. Rounding conventions are consequential in disputes about small differences. Because the EME Component is rounded down, a licence holder’s precise fractional entitlement to the pool will slightly favour the pool controller in aggregate; that is a mechanical consequence of the rounding rule.

• Timing points for allocation of EME pool. The EME Component allocation relies on the MCL calculated on 11 October in the financial year (Schedule 2 cl 1). That snapshot nature establishes a specific factual point at which portfolio composition and licence expiries matter for allocation. Enforcement or assessment disputes will need to hinge on whether a licence was in force and how its MCL was calculated on that 11 October date.

• Need for authoritative data sources. The Determination incorporates the HCIS population data document and the Australian Spectrum Map Grid 2012 by reference (Schedule 1 cl 1 notes). Enforcement or audit by the taxing authority can therefore depend on reference to those official ACMA documents. Differences between a licensee’s internal population estimates and the HCIS figures will not be relevant for calculating the Main Component under the Determination; the Determination compels use of the HCIS figure as incorporated at the specified amendment date.

Uncertainties and compliance risk

• The Determination delegates no discretion; errors in applying its mechanical steps may result in underpayment. Since the Determination provides the arithmetic, compliance risk is primarily operational: mapping licences to HCIS areas, splitting licensed frequency ranges across relevant bands, and applying prorations and discounts correctly. A failure to observe these could lead to assessments under the Act.

• The Determination’s link to external instruments for increases to the EME pool (ACMA Direction 2020) means that the overall pool size for years beyond 2025-26 is determined elsewhere. Enforcement actions that attempt to recover amounts based on an updated pool size will require reference to the relevant Direction and any subsequent Determination amendments. Practitioners should therefore track those external instruments closely.

In short, the Determination sets the compute rules; penalties, notices and recovery processes remain contained in the parent Act and associated instruments. The primary enforcement concern from this Determination is ensuring accurate application of its mechanical rules and reliance on the specified external data so that any assessment issued under the Act can be supported by the required calculations.

This Determination is expressly made under and interacts with multiple legislative instruments and statutory frameworks. Understanding those intersections is key to interpreting inputs and numeric parameters.

Authority and parent Act

• Made under the Act. Section 3 identifies the statutory authority for the Determination as subsections 4(1) and 7(1) of the Radiocommunications (Spectrum Licence Tax) Act 1997. Accordingly, the Determination operates as a legislative instrument subordinate to that Act and must be read and applied in the context of the Act's broader charging, assessment and enforcement provisions.

Radiocommunications Act 1992 references

• Use of licence core conditions. Several of the Determination’s operative definitions rely on licence core conditions referenced in the Radiocommunications Act 1992. Specifically, licensed frequency range and geographic area are the parts of the spectrum and areas identified by the core condition mentioned in paragraph 66(1)(a) and paragraph 66(1)(c) respectively (Schedule 1 cl 1 note and definitions). That means one cannot compute SL bandwidth or area population without consulting the licence text created under the Radiocommunications Act 1992, and the mapping between licence conditions and the HCIS grid must be done in accordance with the Australian Spectrum Map Grid 2012.

ACMA instruments and directions

• HCIS population data and grid. The Determination incorporates the HCIS population data document and refers to the Australian Spectrum Map Grid 2012 as the geographic basis for area population figures (Schedule 1 cl 1 notes). The HCIS document is a published ACMA document and the Determination fixes the HCIS population data as it existed at the commencement of the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1). Therefore, changes to the HCIS data or grid after that commencement would require a subsequent amendment instrument to alter the population inputs used under the Determination.

• ACMA Direction affecting EME pool. Schedule 2 includes a note that subsection 6(2) of the Australian Communications and Media Authority (Modifications to Apparatus and Spectrum Licences Taxes) Direction 2020 requires the ACMA to increase the total annual EME Component from 2023-24 and each subsequent year. That Direction is external to the Determination, but it affects the total annual EME Component used in Schedule 2. Thus the Determination references and depends upon an ACMA direction to set or alter the EME pool over time.

Acts Interpretation and Legislation Act references

• References to other instruments. Section 6 clarifies that references to other legislative instruments are to be read as references to those instruments as in force from time to time, and references to other kinds of instruments are to be read as those instruments as in force or existing at commencement of this instrument. The section also points users to the Acts Interpretation Act 1901 and the Legislation Act 2003 for canonical rules about interpretation and references. Practically, this means that the Determination will track other instruments where the Determination expressly refers to them and that users should follow ordinary legislative interpretation rules.

Interaction with data and administrative law

• Reliance on external administrative data. Because the Main Component calculation uses area population data from an ACMA-published HCIS population data document, the tax computation imports an administrative product into a taxbase calculation. That linkage means that any legal challenge to the population inputs, or attempts to substitute alternative population estimates, will need to grapple with the fact that the Determination mandates the use of the HCIS document as incorporated.

No preclusion of other legal rules

• The Determination does not override rights or obligations in other instruments beyond what the Act permits. For example, exemptions or licence-specific legal constraints that arise under other laws or under the Radiocommunications Act 1992 may still affect the treatment of particular licences. The Determination itself only specifies the method to calculate the quantum of the tax and the set of licences to be treated as Designated for EME purposes; other legal qualifications remain in the parent Acts and associated instruments.

Practical cross-references for counsel and compliance

• Practitioners should consult three sources in combination: (1) the Radiocommunications (Spectrum Licence Tax) Act 1997 for the statutory charging and enforcement framework; (2) the textual terms of each spectrum licence under the Radiocommunications Act 1992, particularly the core conditions referenced in paragraph 66(1); and (3) the ACMA HCIS population document and Australian Spectrum Map Grid 2012 as incorporated by the Determination. Changes to any of these may require recalculation or amendment of tax amounts under the Determination.

The Determination text includes explicit references that indicate prior and subsequent instrument interaction and at least one amendment-related incorporation.

• Base instrument and amendment anchors. The title states that this instrument is the Radiocommunications (Spectrum Licence Tax) Determination 2021 (section 1). The Determination’s Schedule 1 notes state that the HCIS population data document is "incorporated as existing at the time the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1) commenced" (Schedule 1 cl 1 note 3). This indicates that an amendment instrument entitled Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1) exists and that, at that amendment’s commencement, an HCIS population data snapshot was fixed as the population input for the Determination.

• External Direction referenced. Schedule 2 contains a note that subsection 6(2) of the Australian Communications and Media Authority (Modifications to Apparatus and Spectrum Licences Taxes) Direction 2020 requires ACMA to increase the total annual EME Component from 2023-24 and each subsequent year. That Direction is dated 2020 and it is cited as affecting the Determination’s EME pool in subsequent financial years. The Determination therefore links its Schedule 2 pool arithmetic to a direction made in 2020.

• Endnotes on compilation. The instrument’s Endnotes section explains that the compilation includes information about the legislation history and amendment history. It describes that amending laws are annotated in the legislation history and that the amendment history provides provision-level details. The Endnotes also note editorial conventions about "misdescribed amendments" and that such amendments might be handled under section 15V of the Legislation Act 2003, but the Determination does not list specific prior instrument amendments in the body text beyond the references cited above.

What this means in practice

• Snapshotting of population inputs. Through the 2022 Amendment Determination reference, the Determination fixes the HCIS population data as at a particular amendment commencement rather than permitting ongoing dynamic updates absent formal amendment. Practitioners should therefore check for that specific Amendment Determination and any subsequent amendments to understand which HCIS version applies for a given tax year.

• EME pool adjustments are determined elsewhere. The presence of the ACMA Direction 2020 note means that while the Determination specifies the formula for allocating the EME Component, the actual size of the EME pool for years beyond 2025-26 will be subject to instruments and directions external to this Determination. Users should track the ACMA’s Directions and any Determination amendments to know the applicable total annual EME Component in a given year.

• Record of amendments. The Endnotes indicate that the compiled law will record and annotate amendments. Practitioners should consult the Federal Register of Legislation for the instrument’s legislation history and for any amending instruments to the Determination, including but not limited to the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1).

The text provided for the Radiocommunications (Spectrum Licence Tax) Determination 2021 contains no judicial decisions, case citations, or descriptions of litigation. The Endnotes discuss compilation and amendment history procedures and reference policy for misdescribed amendments but do not record any court challenges to the Determination itself.

Consequently:

• No cases are named in this instrument. The Determination does not cite judicial rulings or administrative tribunal decisions, and the provided material gives no indication of litigation to date based on its contents.

• Dispute channels implicit but not specified. Because the Determination sets the method of calculation only, any disputes about assessments arising from its application would proceed under the enforcement, objection and review processes in the Radiocommunications (Spectrum Licence Tax) Act 1997 and other applicable administrative law mechanisms. Those processes are outside the Determination text and not reproduced here.

What to watch for in terms of litigation risk

• Points likely to generate disputes. If litigation were to arise, the most likely factual and legal choke-points would be: (1) the proper mapping of licence geographic areas to HCIS cells and the correct area population figure to use; (2) the precise measurement of SL bandwidth where licensed frequency ranges cross relevant frequency band boundaries; (3) whether a licence qualifies as "Designated" under section 5, particularly for licences held by entities with ambiguous institutional status; (4) correct application of the discount and minimum rules in Schedule 1 cl 3(4)-(5); and (5) the calculation of the total Main Component for the purposes of allocating the EME pool under Schedule 2 cl 1. Disagreements on these factual or interpretive matters could give rise to objections or judicial review where the Act provides a path to challenge assessments.

• Reliance on external data. Potential dispute may also focus on the HCIS population data document as incorporated. Because the Determination fixes the HCIS document as it existed at a particular amendment commencement, challenges against the content of that HCIS snapshot may have limited scope unless procedural or substantive defects in the incorporation process are alleged. Any successful challenge would likely turn on whether the Determination, or its amendment instruments, complied with statutory requirements for incorporation or whether the HCIS document contravened other legal duties.

In short, the Determination itself does not display litigation history in its text. Practitioners should monitor proceedings under the Act and administrative review records for any disputes concerning calculation, data incorporation or the classification of licences as Designated or non-Designated.

The Determination contains multiple detailed rules and cross-references which create several practical pitfalls for licence holders and advisers. Below are the principal "gotchas" to watch for when applying the Determination to a licence portfolio.

1. Designated status is not synonymous with commercial use

• The definition of Designated Spectrum Licence (section 5(1)) is not "all licences issued to private operators" but rather "all Part 3.2 licences except those specifically excluded". The exclusions are narrow and institution-based (Commonwealth Departments, Executive Agencies, Statutory Agencies) or service‑condition-based (TV outside-broadcast and rail-use-only conditions). A licence held by a government business enterprise or other public body not covered by the narrow statutory exclusions may still be Designated and therefore liable for the EME Component. Do not assume public-sector holdings are exempt unless they fall within the listed statutory categories.

2. HCIS population snapshot is fixed by amendment, not dynamic

• The Determination incorporates the HCIS population data document "as existing at the commencement of the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1)" (Schedule 1 cl 1 note 3). That snapshot is based on the 2021 census at that time. Unless there has been a later amending Determination to update the HCIS input, users must use that fixed dataset. Expect disputes if a licensee uses alternative population figures in its internal modelling.

3. Licence text drives geography

• Area population is tied to the "geographic area" specified in the licence core condition mentioned in paragraph 66(1)(c) of the Radiocommunications Act 1992 (Schedule 1 cl 1). To compute tax correctly you must use the licence’s actual core condition identifiers and map them to the HCIS cell identifiers, not approximate service footprints or network coverage maps.

4. Cross‑band licensed frequency ranges must be split per relevant frequency band

• The SL bandwidth is the number of MHz in the licensed frequency range that fall within a relevant frequency band (Schedule 1 cl 2(2)). If a licensed frequency range crosses multiple entries in the relevant frequency band table, you must apportion SL bandwidth to each relevant band and apply the respective base amount and total specified spectrum denominators. Failure to split can materially misstate the Main Component.

5. Discounts can require careful identification of band usage

• The one‑third discount (Schedule 1 cl 3(4)) applies if the licence "authorises the use of spectrum in either" the specified bands 2570-2585 MHz or 2605-2620 MHz. This is a positive rule: presence of authorisation triggers substitution of Step 2. If a licence authorises those bands alongside others, the discounted Step 2 still applies , the Determination does not say the discount applies only to a subpart. Practitioners should confirm whether the discount is intended to apply to entire aggregate amounts for that licence.

6. The $7 minimum and $7 special case

• The Main Component cannot be less than $7 (Schedule 1 cl 3 Step 3). Additionally, licences that authorise only 824-825 MHz and 869-870 MHz and no other part of the spectrum have Main Component $7 regardless. These minima mean that small licences still carry at least administrative cost to compute and at least a de minimis tax.

7. Timing for the EME pool allocation is a snapshot

• The EME allocation uses each Designated licence’s MCL calculated on 11 October (Schedule 2 cl 1). The total Main Component against which each MCL is compared is the sum of all MCLs for Designated licences in force on that same 11 October. Strategic portfolio changes around that date, including licence transfers or expiries, will affect both numerator and denominator. Practitioners should note that a licence composition change a day earlier or later could change EME allocations.

8. The total annual EME Component is specified for 2025-26 only

• Schedule 2 fixes the total annual EME Component for 2025-26 as $2,134,433.17 and references a Direction requiring increases from 2023-24. Practitioners must check the ACMA Direction and any subsequent Determination amendments for the actual pool size in other years. Do not assume the 2025-26 figure applies to other years.

9. Rounding and rounding-down in favour of whole dollar truncation for EME

• The Main Component rounding rules are symmetric (round down if <50c otherwise round up) (Schedule 1 cl 3 Step 2). The EME Component is rounded down to the nearest whole dollar (Schedule 2 cl 2). Combined, these rules can produce small cumulative biases relative to purely fractional allocations. For large licence populations this is marginal, but for many small licences the aggregate rounding effect can matter.

10. The Determination is computation‑only: check the Act for procedural obligations

• The Determination does not address payment dates, notices, objections, refunds or interest. Those procedural and enforcement mechanisms are in the Act. Practitioners should not rely on the Determination for procedural compliance steps.

Compliance requires disciplined application of the Determination’s computational steps, documentary evidence of inputs, and monitoring of external instruments (HCIS document, ACMA directions and any amending Determinations). The following is a practical compliance checklist and the steps to produce a defensible tax figure for each licence.

Step A , Establish basic file-level facts

1. Identify whether the licence is issued under Part 3.2 of the Radiocommunications Act 1992. The Determination applies only to spectrum licences of that class (section 5 definition context).

2. Determine whether the licence is a Designated Spectrum Licence (section 5(1)). Check:

   • Is the licence issued to a Department of State of the Commonwealth, an Executive Agency under s 65 of the Public Service Act 1999, or a Statutory Agency as defined by s 7 of the Public Service Act 1999? If yes, the licence is not Designated.
   • Does the licence have one or more conditions that require the licensed spectrum to be used only for television outside broadcast services? If yes, the licence is not Designated.
   • Does the licence have one or more conditions that require the licensed spectrum to be used only for rail safety, rail operations or rail control? If yes, the licence is not Designated. If none of the exclusions apply, the licence is Designated and will attract an EME Component.

3. Determine the licence’s initial holding date under section 7:

   • If the licence was in force on 11 October 2021, initial holding date is 11 October 2021.
   • If the licence comes into force on 11 October in a year after 2021, initial holding date is the date it comes into force.
   • Otherwise, initial holding date is the first 11 October after the licence came into force. Use the initial holding date to compute anniversaries and identify the last anniversary before expiry.

Step B , Gather authoritative inputs

4. Retrieve the licence core condition text under paragraph 66(1)(a) and (c) of the Radiocommunications Act 1992 to identify:

   • The licensed frequency range(s) for the licence.
   • The geographic area identifier(s) (HCIS identifiers) specified in the core condition.

5. Obtain the HCIS population data document as incorporated by the Determination. Schedule 1 notes indicate the HCIS population data document incorporated is that existing at the commencement of the Radiocommunications (Spectrum Licence Tax) Amendment Determination 2022 (No.1). Use that HCIS snapshot unless you have a later amending Determination that specifies a different HCIS document. The ACMA website hosts the HCIS population data document and Australian Spectrum Map Grid 2012 (Schedule 1 cl 1 notes).

6. Confirm the Australian population number used by the Determination: 25,362,351 (Schedule 1 cl 1).

Step C , Calculate the Main Component

7. For each relevant frequency band in the Schedule 1 table that your licence overlaps, identify:

   • The "total specified spectrum" and "base amount" from Schedule 1 cl 2 table for that relevant frequency band.
   • The SL bandwidth: measure the number of MHz in the licensed frequency range that fall within the relevant frequency band (Schedule 1 cl 2(2)).
   • The geographic area(s) for that licensed frequency range (GA) as specified by the licence’s core condition; for each GA obtain area population from the HCIS document.

8. Apply Step 1A (or Step 1B if calculating for the last anniversary before expiry) in Schedule 1 cl 3:

   • Step 1A (initial holding date or ordinary anniversary): For each licensed frequency range and each geographic area, calculate: base amount × (area population / Australian population) × (SL bandwidth / total specified spectrum). Do this for each relevant frequency band the licence touches and sum the results.
   • Step 1B (last anniversary): Same calculation but multiply each amount also by (days / 365) where days is the number of days from the last anniversary to the expiry date.

9. If the licence authorises spectrum in either 2570-2585 MHz or 2605-2620 MHz, use the substituted Step 2 in Schedule 1 cl 3(4): aggregate the Step 1 amounts and reduce the total by one third, then apply rounding. If not, proceed to the standard Step 2.

10. Round per Step 2 in Schedule 1 cl 3: if the aggregate result is not a whole dollar amount, round down if the fractional part is less than $0.50, otherwise round up.

11. Ensure the Main Component is at least $7 per Step 3: the Main Component is the greater of the Step 2 amount and $7. If the licence authorises only 824-825 MHz and 869-870 MHz and no other spectrum, set the Main Component to $7 per Schedule 1 cl 3(5).

Step D , Calculate the EME Component (Designated licences only)

12. Calculate MCL. For each Designated licence, calculate the Main Component as at 11 October in the relevant financial year; that figure is the MCL (Schedule 2 cl 1).

13. Determine total Main Component for the financial year. Sum the MCLs for all Designated licences in force on 11 October of that financial year; that sum is the "total Main Component" (Schedule 2 cl 1 definition).

14. Obtain the total annual EME Component for the financial year. Schedule 2 sets $2,134,433.17 for 2025-26 and notes that the ACMA Direction 2020 requires increases from 2023-24 and in subsequent years. For other years, check the relevant Direction or amending Determination to determine the pool size.

15. Compute each licence’s EME Component by applying Schedule 2 cl 2 Step 1 formula: EME = (MCL / total Main Component) × total annual EME Component. If the result is not a whole dollar amount, round down to the nearest whole dollar (Schedule 2 cl 2 Step 2).

Step E , Final tax amount and documentation

16. The tax for a Designated licence equals Main Component + EME Component (section 8(3)). For non‑Designated licences it equals the Main Component only (section 8(2)).

17. Record and retain evidence for each calculational input and intermediate step:

• The licence core condition text showing licensed frequency range and HCIS geographic identifier(s).
• The HCIS population figures used, including retrieval date and version, and the copy of the HCIS population data document as incorporated by the Determination.
• The mapping from licence frequency ranges to relevant frequency-band entries in Schedule 1 cl 2.
• The SL bandwidth calculations including any apportionments where ranges cross bands.
• The day counts used for prorations for the last anniversary.
• The MCL snapshot calculations and the total Main Component summation date for EME allocation.
• The total annual EME Component used and the instrument (Direction or Determination) authorising that pool size.

18. Monitor external instruments and dates:

• Track ACMA publications for updated HCIS data or any amending Determination that incorporates a later HCIS snapshot.
• Track the ACMA Direction affecting the EME pool and any amending Determinations that change the total annual EME Component for future years.
• Flag licence changes (transfers, expiries, and new issue dates) around 11 October which can alter EME allocations.

Other practical notes

• If you manage a portfolio of licences, compute the MCLs for all Designated licences in force on 11 October as a single reconciliation exercise to secure the total Main Component denominator for EME allocation. Doing the MCLs in isolation can yield incorrect EME allocations.

• Where a licence spans multiple geographic areas or HCIS cells, compute the area population fraction for each cell and sum the weighted amounts; the Determination contemplates multiple GAs per licensed frequency range by requiring identification of "each geographic area" in Step 1A/1B (Schedule 1 cl 3 Step 1A and Step 1B).

• Use caution with decimal arithmetic across many small items. Keep intermediate decimals to sufficient precision before applying the Determination’s rounding rule at Step 2.

Following the above steps and preserving supporting materials will create a defensible tax computation and will be the central evidence for any administrative review or audit under the Act.