Want a tax-agent extension? The 31 October deadline still matters

Abby's take

What this means for the industry — and for independents

Industry impact. Hair and makeup sole traders often combine service income, deposits, retail sales, travel and mixed private-business expenses. Waiting until the final week can turn missing records into rushed claims and can affect access to a tax agent’s later lodgment date.

For freelancers. A freelancer who self-lodges generally faces the 31 October deadline. A registered tax agent may have a later program date, but it depends on the person’s circumstances and engagement timing, while overdue prior returns can disrupt the current-year due date.

What I'd do next

• Check ATO online services for the actual 2026 return status and any overdue prior-year obligations rather than relying on last year’s due date.
• If using an agent, verify their registration on the Tax Practitioners Board register and contact them early enough to confirm they can accept and add you correctly.
• Give the agent complete income records, business and private apportionments, bank data and outstanding notices instead of sending only deductible expenses.
• If the deadline cannot be met, contact the ATO or registered agent before it passes and document the circumstances and agreed next step.

Watch-out. Tax return due dates depend on structure, lodgment history, agent program eligibility and personal circumstances. This article focuses on sole-trader individuals and does not set the due date for a company, trust or partnership. It is general information, not tax advice.

Self-lodging sole traders should work to 31 October

The ATO’s 1 October 2026 small-business update says businesses lodging their own return need to lodge before 31 October. It also states that an individual who carried on a business must lodge even if the business made a loss.

That return should include all assessable business income, valid deductions, correct apportionment of mixed expenses and supporting records. A quiet year, business pause or loss does not by itself remove the lodgment obligation.

A tax agent may provide more time, but timing controls access

The ATO says most registered tax agents have a special lodgment program and can lodge client returns after the usual 31 October deadline. The actual date depends on the taxpayer’s circumstances and when the agent is engaged.

For the 2026 program, the ATO has separately told agents to add new clients by 31 October. Booking a first appointment in November is therefore not a safe assumption that the later program date will apply. Ask the agent to confirm the due date, not merely that they can prepare the return.

Overdue prior returns can remove the expected extension

The ATO says overdue prior-year returns should be lodged by 31 October 2026 for the 2026 return to receive the normal agent program due date. It can take up to three weeks for updated due dates to appear after prior returns are lodged.

Give the agent the full backlog immediately. Do not hide an old return because the current year looks simple. Prior non-lodgment, prosecution or other history can change the current due date and the advice the agent gives.

A registered agent is different from a helpful bookkeeper

The Tax Practitioners Board says people who prepare or lodge tax returns or provide tax advice for a fee should generally be registered for the relevant service. Search the TPB public register and check the current status and permitted practitioner type.

A BAS agent may provide BAS services within their registration but is not automatically authorised to provide every income-tax service. Confirm who is responsible for the tax return, what information they need and what the engagement covers.

Build one clean evidence pack before claiming

Start with income: booking-platform settlements, EFTPOS, transfers, cash, deposits applied to services, retail sales and any other assessable receipts. Reconcile gross sales rather than treating the bank’s net settlement after fees as total income.

Then group expenses and mark private use. Include vehicle and travel records, product and stock purchases, workspace costs, software, insurance and professional fees. A deduction is not stronger because it is entered at the last minute.

Reconcile payments from client to bank · Separate the business banking trail

Late does not automatically mean penalised, but do not ignore it

The ATO says it may apply a failure-to-lodge penalty when a required return or statement is not lodged by its due date. It also says penalties are generally not applied for isolated late lodgment and that circumstances are considered, but this is not a promise that every late return is penalty-free.

If records, health, disaster or another circumstance prevents lodgment, contact the ATO or agent before the deadline where possible. Lodging an incomplete or inaccurate return simply to meet the date can create a different problem.

Understand the cost of unpaid ATO debt · Build a tax set-aside method for this year

Authoritative sources checked on 8 October 2026

The current self-lodgment deadline was checked against the ATO update published 1 October 2026: https://www.ato.gov.au/businesses-and-organisations/small-business-newsroom/dont-miss-your-tax-return-deadline

Agent timing and overdue-return treatment were checked against ATO registered-agent guidance: https://www.ato.gov.au/individuals-and-families/your-tax-return/how-to-lodge-your-tax-return/lodge-your-tax-return-with-a-registered-tax-agent and https://www.ato.gov.au/tax-and-super-professionals/for-tax-professionals/tax-professionals-newsroom/lodge-prior-year-returns-and-add-new-clients-by-31-october

Registration checks were verified against the Tax Practitioners Board public register: https://www.tpb.gov.au/public-register

Common questions