Late Tax Declaration with a Tax Agent
Late Tax Return Lodgement with a Tax Agent
If you’ve missed the tax deadline or have one or more overdue tax returns, you are not alone. The most important step is to take action and get back up to date in a structured, calm way.
This page explains what late lodgement can lead to, why working with a registered tax agent helps, and the simplest way to move forward.
Is it still worth lodging if you are late?
Yes. In most cases, lodging late is far better than not lodging at all. Late returns can create penalties and interest, but leaving returns outstanding for long periods increases risk and can trigger stronger ATO action over time.
What can happen if you miss the deadline?
1) Failure to lodge (FTL) penalties may apply
The ATO may apply a failure to lodge (FTL) on time penalty if you have a lodgement obligation and do not lodge by the due date. The base penalty for individuals and small withholders is calculated as one penalty unit for every 28 days (or part thereof) the document is overdue, up to a maximum of 5 penalty units. The ATO also notes it generally doesn’t apply penalties in isolated cases of late lodgement and will often warn you first. Safe-harbour provisions may apply when you use a registered agent.
ATO – Failure to lodge on time penalty (FTL)
2) Interest (GIC) may apply if tax remains unpaid
If an amount of tax remains unpaid after it should have been paid, the ATO may apply a general interest charge (GIC). The ATO explains that GIC can apply where a return is lodged late and that rates are updated quarterly.
ATO – General interest charge (GIC) rates
3) Default assessments can occur if overdue obligations remain unresolved
Where lodgement obligations remain overdue and a cooperative approach is unsuccessful, the ATO can issue a default assessment (an assessment based on the ATO’s estimate). This can create additional stress and cost, and is one reason why acting early is usually the best approach.
ATO – Default assessments for overdue lodgements
How a tax agent helps when you are late
Access to the registered agent lodgment program
Registered tax agents work within the ATO’s registered agent lodgment program, which provides structured due dates for different client types. Overdue prior year returns can affect due dates, which is another reason to address outstanding years in an orderly way.
ATO – Registered agent lodgment program
A calmer, structured approach (especially if multiple years are overdue)
Many people who are behind feel overwhelmed and avoid opening ATO letters or checking myGov. A tax agent can help confirm what is outstanding, rebuild missing information where possible, and lodge returns in the correct order.
Support with penalties and next steps
Where penalties or interest are involved, we can help you understand what has occurred and what options may be available. The best outcomes generally come from acting early and showing a clear intention to comply.
What we need from you (simple checklist)
- Which year(s) are overdue (if you know) – if not, we can help confirm.
- Your income details (income statements, Centrelink, interest/dividends, etc.).
- Any deductions information you still have (even partial records can help).
- If you have an ATO letter, notice to lodge, or any assessments – keep them handy.
- Make sure your myGov/ATO contact and bank details are up to date (especially if refunds may be issued).
Individuals vs business owners (important distinction)
If your overdue obligations are personal income tax returns only, the focus is usually on lodging the outstanding years correctly and ensuring the information used is reasonable and supportable.
If you also have business obligations (for example BAS, GST, PAYG withholding, or company/trust returns), it’s important to confirm all entity obligations and bring everything up to date in the correct order.
Next step
If you are behind on one or more returns, the most useful step is to start a structured catch‑up process. We can help you get up to date calmly and correctly.
Individuals: Learn more about our individual support here:
Individual Tax Services
Business owners: Learn more about our business support here:
Business Accounting & Advisory Services
If you are ready to proceed, use the site booking link:
Book any service
This information is general in nature and does not take into account your personal circumstances. If you are unsure what applies to you, getting a review early is usually better than waiting.