Substituted Accounting Period Applications

A substituted accounting period lets your client use an approved income-tax year with a different year-end. Apply to the ATO with the commercial reasons, then use its written approval to map the transition and each return’s obligations.

When a Different Accounting Period Fits

A substituted accounting period, or SAP, changes the annual accounting period used for income tax with the Commissioner’s permission. Changing a bookkeeping year-end setting does not obtain that permission.

The ATO considers whether the entity’s circumstances fall outside the ordinary run. Matching an overseas controlling entity’s reporting period can support an application. Explain the ownership relationship and why separate reporting periods create a continuing commercial problem. An ongoing inventory or industry reporting difficulty can also support the reasons.

A quieter filing season is a preference, not evidence of that commercial problem. Likewise, a company financial-year change recorded with ASIC does not itself establish the income-tax case. Match each supporting document to a specific reason for the requested period.

Prepare the Application and Supporting Reasons

Prepare one application file for the entity whose income-tax period will change. Confirm your authority to act before lodging it.

1. Record the entity’s legal name, entity type and identifiers in your secure client file. Add the agent contact and the person authorising the application.
2. Set out the existing balance date, proposed balance date and requested first affected income year. Include the last lodged return’s period and a proposed transition map.
3. Explain the business reason. For a group application, attach an ownership chart and evidence of the controlling entity’s reporting period. Describe the duplicated reporting or other continuing difficulty.
4. Complete the ATO’s SAP application through Online services for agents or Online services for business. Use the ATO application instructions for the available form and declaration.
5. Retain the completed application, attachments and lodgment receipt. Keep the existing return tasks open while the ATO considers the request.

The ATO’s instructions identify the registered tax agent, public officer, partnership partner or trustee as eligible applicants and signatories. For a corporate trustee, the instructions identify its public officer. Confirm the signatory’s capacity and the client’s authority for your practice to apply. A company declaration signer must have their name and position recorded with the ATO.

Apply when the commercial circumstances arise. PS LA 2007/21 asks for lodgment at least 28 days before the earlier current-period or proposed-period return deadline. Retrospective applications have limited acceptance circumstances. A pending application does not move the existing deadline.

Map the Transitional Return

Map consecutive reporting periods from the last completed return through the first recurring SAP return. The approval must identify the transition boundaries and the income year each return replaces.

An early balancer’s approved period ends before the standard year-end it replaces. A late balancer’s period ends after it. Use the classification in the approval when choosing the tax return year. The label is not a reason to reuse the year shown on the financial statements.

Hypothetical Transition Maps

These examples assume an existing entity has completed its previous approved return. The ATO approves the stated transition and the following 12-month periods. Month numbers below count from the day after that previous return ends.

Reporting event	Shorter transition	Longer transition
Previous approved return closes	All income through the old close belongs to that return	All income through the old close belongs to that return
Transitional return closes	Report months 1 to 9 in one approved 9-month return	Report months 1 to 17 in one approved 17-month return
First recurring SAP return closes	Report months 10 to 21 in the next 12-month return	Report months 18 to 29 in the next 12-month return
Continuity check	9 plus 12 equals 21 months covered once	17 plus 12 equals 29 months covered once

In the longer example, avoid also lodging a standard return for months 1 to 12. Those months already belong to the approved transitional return. In the shorter example, begin the next return immediately after month 9, without carrying those nine months into it again.

Apply the same boundaries to deductions and tax adjustments, with each item’s normal recognition rules. Reconcile opening balances to the previous return and closing balances to the next workpapers. Confirm any missing income-year label with the approval. An apparent gap in return years can occur under the transition rules without leaving an unreported period.

If the approval gives a different period from your application, rebuild the map before changing your tax software. Newly registered and dormant entities have different first-period treatment. Do not apply these existing-entity examples to them automatically.

Update the Practice’s Lodgment Timetable

Turn the approved periods into separate preparation, lodgment and payment tasks. A later return deadline does not automatically defer payment.

For ordinary full self-assessment companies and super funds, the ATO’s SAP timetable generally places payment on the first day of the sixth month after year-end. Lodgment generally falls on the fifteenth day of the seventh month. Companies outside full self-assessment have different treatment, including payment under the assessment notice. Record the applicable client classification and the due dates shown in the ATO client list.

Choose the tax return form for the income year the approved period replaces. Where early balancing precedes the release of that form, follow the ATO’s early-lodgment instructions for the form and supplementary information. Allocate the work using the tax agent lodgment program without copying a standard client’s deadlines.

Keep these review tasks beside the approval:

• Reconcile PAYG instalment periods and credits to the approved return. The ATO’s GDP adjustment guidance shows that the applicable adjustment can depend on when the SAP income year begins.
• Confirm activity-statement periods and their separate lodgment and payment dates. Do not move GST or withholding tasks merely because the income-tax year changes.
• Recalculate depreciation for the actual period. The ATO’s depreciation guidance uses days held in the income year for the prime cost calculation. Do not carry over a standard annual deduction unchanged.
• Review concession eligibility and tax-law commencement provisions against the actual income year. Distinguish rules based on the year’s start from rules based on an asset purchase or another event.

Include shortfall interest charge treatment in that law-change review when relevant. The income year and timing of the charge can affect the deduction analysis.

Give each task an owner and retain the approval with the revised timetable. Before closing the change, compare the ATO record, tax software period and transition workpapers. All must describe the same approved periods.

Check Other Regulators Separately

An ATO approval changes the income-tax position. Check ASIC and ACNC obligations under their own rules before treating the new year-end as the client’s reporting year for every purpose.

The ASIC financial-year guidance lists the permitted exceptions to a 12-month financial year. Some changes require notification without advance permission. A change relying on unreasonable burden requires an application for relief. Record the applicable exception or relief and notify ASIC of the old and new periods. Check any financial-report and annual general meeting deadlines separately.

For a registered charity, the ACNC’s SAP policy requires its own approval based on a genuine need. An approved Annual Information Statement and any required annual financial report are generally due six months after the reporting period ends. ACNC transition conditions must leave no gaps in charity reporting. Its income-year labelling can differ from the ATO’s early-balancer treatment.

For a later SAP change or return to the standard tax year, seek the ATO’s permission again. A charity also requests its separate ACNC change through the Charity Portal. Keep the existing settings until the relevant approval establishes the replacement periods, then repeat the continuity check before replacing future tasks.