I still have income overseas — do I have to declare it in Australia?

You moved to Australia a few years ago, but you never fully closed the door back home. There's still an apartment being rented out, a savings account quietly earning interest, maybe a small dividend from a family company. The money stays offshore — it never lands in your Australian bank account — so at tax time it feels like it belongs to another life, and another country's tax office. That instinct is exactly where a lot of otherwise careful people slip.

The rule is simpler than people hope: worldwide income

If you are an Australian resident for tax purposes, you have to declare income you earn anywhere in the world on your Australian tax return — not just the income you earn here. The ATO is explicit about it. That covers foreign employment and salary, pensions and annuities, interest on overseas savings, dividends from foreign shares, rent from a property back home, business income, and capital gains on assets sold overseas.

Two details catch people. First, you declare the income even if you have already paid tax on it in the other country — paying foreign tax doesn't remove the obligation to report it here. Second, you convert every foreign amount to Australian dollars before it goes on your return. 'It stayed in the local currency and I never converted it' is not a reason to leave it off.

What the ATO can already see

The reason this matters more than it did a decade ago is that the ATO no longer relies on you volunteering the information. Under the Common Reporting Standard (CRS) — a global information-sharing system that has applied since 1 July 2017 — financial institutions in more than 120 countries identify account holders who are foreign tax residents and report them to their own tax authority, which then passes the data to the ATO. What's shared includes account balances, interest, dividends and the gross proceeds from financial transactions.

China has participated since the first exchanges in 2018, as have most of the countries our clients come from. 'Offshore and quiet' simply isn't the cover it used to be — the account you assume no one here knows about may already be sitting in the ATO's data, waiting to be matched against your return.

The part that works in your favour: you won't be taxed twice

The worry underneath all of this is usually double tax — if I declare it here and I already paid tax there, am I paying twice? Generally, no. The foreign income tax offset (FITO) gives you a credit for the foreign tax you have already paid, so the same dollar isn't taxed twice over. Two conditions attach: the foreign income has to be included in your Australian return, and you have to have actually paid the foreign tax and be able to show it.

There's a helpful shortcut at the small end. If the foreign tax you paid for the year comes to $1,000 or less, you can claim that amount without working through the full offset-limit calculation. The offset is non-refundable — it reduces the Australian tax you owe, rather than paying you cash beyond that — but for most people with modest overseas earnings, it does the job of removing the double-tax sting.

The two beliefs that get people caught

The first is 'the money never came to Australia, so it isn't Australian income.' Where the money sits has nothing to do with it — what matters is your residency, and an Australian tax resident is taxed on worldwide income regardless of which bank holds it. The second is 'I already paid tax on it back home, so I'm finished.' You still declare it here; the FITO is how you avoid being taxed twice, but only if the income is on your return in the first place.

One genuine carve-out is worth flagging, because it can change the answer entirely: temporary residents — people here on certain visas — are generally not taxed on most of their foreign income. But whether you are a temporary resident, a foreign resident or a full tax resident is a technical question with real money riding on it, and it's exactly the kind of thing worth confirming rather than assuming.

So the practical version is ordinary. Pull together the records for your overseas accounts, property and investments — the full picture, not just what you brought across — and declare the income in Australian dollars, claiming the FITO for foreign tax you've paid. If an earlier year's return left foreign income off, correcting it voluntarily generally works out far better than waiting for the ATO to match the data and come to you; undeclared foreign income can attract penalties and interest on top of the tax.

This is general information current as at July 2026, not advice for your situation — how these rules apply depends on your residency, your visa and where your income comes from. If you're a new arrival lodging in Australia for the first time, or you've carried overseas income and assets for years without being sure how to report them, that is one of the most common blind spots we see. That is what our individual tax return service is for.