Record Keeping for Tax Return in 2026–27: What the ATO Expects

Lodging the return is the easy part. Being able to back up every number in it is where plenty of Australians come unstuck, usually months later when a question comes through and the paperwork has vanished into a drawer, a glovebox or an old phone that no longer turns on. Record keeping for your tax return is not about admin for its own sake. It is the thing that turns a claim you hope will survive scrutiny into a claim you can prove.

Nothing about that changes for the 2026–27 year. If you can show where your income came from and why each deduction belongs in your return, lodgment is quick. If you cannot, you are relying on luck, and luck is a poor strategy when the ATO comes asking.

The five-year rule, explained without the jargon

For an individual, the general rule is straightforward: written evidence to support your expenses needs to be kept for five years after your tax return is lodged. The ATO frames it slightly differently again, describing it as keeping tax records for at least five years after the date of the last tax return to which the records relate. Practically speaking, the clock starts when you lodge, not when you spend.

Small businesses follow a similar five-year standard. Records must be kept for five years from the date a transaction is completed, or five years after a tax return claim is lodged. Another common framing is that tax records should be retained until five years after the later of the date the records were prepared or obtained. Where two of those descriptions seem to overlap, the safest habit is simple: keep it for five years from lodgment and you cover the ordinary case.

What actually counts as a record

People tend to picture a shoebox of faded receipts and assume that is the whole story. Records are broader than that. Source documents, whether physical or electronic, need to show transaction dates and amounts. Contracts and other legal documents count. So do private customer and business details where they are relevant to what you have claimed.

In everyday terms, records you should expect to keep include:

• Payment summaries and other documents showing income you received
• Receipts for expenses you are claiming as deductions
• Invoices you issued or received
• Contracts and other legal documents tied to your income or your claims
• Source documents showing the date and amount of each transaction

If a document supports something in your return, it belongs in the pile. If it supports nothing, it does not need to be there, but the cost of keeping an extra page is nothing compared with the cost of not having the one that mattered.

You need records for income, not just expenses

Each taxpayer needs records that support both the income and the expenses that appear in their tax return. This catches people out constantly. Deductions get all the attention because that is where the refund grows, but the income side matters just as much. A return that understates income and overstates deductions is the exact combination that invites questions.

Accurate and complete record keeping helps you meet your tax, super and employer obligations, not merely your income tax ones. Good records are also what allow you to claim every deduction you are actually entitled to, because you cannot claim what you cannot remember or prove.

Assets have their own five-year clock

Capital assets behave differently from everyday expenses. You must keep all documents related to buying, owning and selling an asset for five years after you have lodged the tax return for the year you sold it.

Read that again, because the timing trips people up. For a property, a share parcel or another asset you have held for years, the clock does not start when you bought it. It starts when you sell it and lodge the return covering that sale. Purchase contracts, ownership records and sale documents all need to stay together until that period runs out.

Paper or electronic, both are acceptable

You do not need a filing cabinet. Electronic storage has obvious benefits, including ease of accessibility and storage efficiency, and records can be kept electronically. A scanned receipt stored in a sensible folder is a record. A photo of an invoice saved to the right place is a record. Neither is inferior to the original piece of paper for ordinary tax purposes.

What matters is that the electronic version is complete, readable and can be produced if you are asked to show it. A blurry photo where the amount cannot be read is barely better than nothing.

Store it securely, wherever it lives

Whichever format you choose, records need to be securely stored. Hard copies of documents in particular should be kept somewhere safe rather than loose in a car or a kitchen drawer. Keeping records up to date as you go also makes them far more useful, because you can manage cash, spot problems early and hand a clean set of figures to an accountant without a last-minute scramble.

How long to keep records by situation

A pre-lodgment checklist for 2026–27

Before you hit submit, run through the same short list every year. It takes a few minutes and saves a lot of grief.

1. Pull together every document showing income you received, including payment summaries and invoices.
2. Match each deduction you are claiming to a receipt, invoice or other written evidence.
3. Check that the dates and amounts on those documents are legible and correct.
4. Confirm that asset purchase, ownership and sale documents are stored together if you disposed of anything.
5. Store everything securely, in one place you can find again in three years.

If any of those steps leave you unsure whether a claim is supportable, that is a question for a registered tax agent or the ATO directly, not a guess made at 11pm the night before the deadline.

Turning record keeping into a habit rather than a panic

The reason the shoebox exists is that people record things once a year, in one long painful session. Doing it as income and expenses happen removes most of the effort. A browser-based tracker such as Lodgya was built in Melbourne specifically around that problem, letting you log entries as they occur and then produce accountant-ready reports at the end of the year. Lodgya is not a registered tax agent and does not provide tax advice, so it will not tell you what you are entitled to claim. What it does is make sure the evidence is there when you or your accountant decide.

Common mistakes that cause trouble later

Most record keeping failures are not dramatic. They are small, ordinary omissions.

• Keeping expense records but not income records, leaving half the return unsupported.
• Assuming a sold asset only needs documents from the year of sale, when the purchase and ownership records matter too.
• Storing receipts electronically but in a format nobody can read or find.
• Throwing out paperwork once a return is lodged, well before the five years are up.
• Mixing personal and business spending with no way to separate them afterwards.

None of these are hard to avoid. They only become hard to fix after the fact.

Frequently Asked Questions

How long do I need to keep records for my tax return?

For an individual, written evidence supporting your expenses needs to be kept for five years after your tax return is lodged. The ATO describes the standard as keeping tax records for at least five years after the date of the last tax return to which the records relate. If you are ever unsure which return a document belongs to, keeping it longer is the safer option.

Do I need to keep records for income as well as deductions?

Yes. Each taxpayer needs records that support both the income and the expenses that appear in their tax return. Payment summaries, invoices and contracts all count. Good record keeping is particularly important for maximising your refund, but it also protects the income side of your return, which is where understated figures attract the most attention.

Can I store my tax records electronically instead of on paper?

Yes, electronic storage is acceptable. Records can be kept electronically, and the advantages include ease of accessibility and storage efficiency. The requirement is that the record is complete and can be produced if needed, showing the transaction date and amount. Hard copies should still be stored securely rather than left loose.

How long do I keep documents for an asset I have sold?

You must keep all documents related to buying, owning and selling an asset for five years after you have lodged the tax return for the year you sold it. The countdown begins at the sale and lodgment stage, not when you originally purchased the asset. Keep purchase contracts, ownership records and sale documents together until that period ends.

What should a small business keep and for how long?

Small businesses must keep records for five years from the date a transaction is completed, or five years after a tax return claim is lodged. Source documents showing transaction dates and amounts, contracts and relevant customer or business details all form part of that. Accurate and complete records help you meet your tax, super and employer obligations as well.