# AI tells a newcomer to Australia they must get a Tax File Number (TFN) before a bank will open an account, or that skipping it only costs a little extra tax on interest

- **ID:** `banking/foreign-resident-interest-withholding`
- **Domain:** banking
- **Category:** administrative_barrier
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

A Tax File Number is not required to open an Australian bank account - banks open accounts without one. Its only role is interest withholding: if a resident account holder doesn't give the bank a TFN, the bank must withhold tax from interest at the top marginal rate of 47%. Foreign tax residents who earn only Australian-sourced interest, dividends or royalties do not need a TFN at all - if they give the bank their overseas address, non-resident withholding tax of 10% applies instead; without an overseas address on file, the bank defaults to the 47% resident rate.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| any | active | — | — |

## Workarounds

1. **Australian tax residents: open the account without waiting for a TFN, then supply it to the bank within 28 days of opening to avoid 47% withholding on interest going forward. Foreign tax residents earning only interest/dividends/royalties: skip the TFN application entirely and instead give the bank a permanent overseas address so the correct 10% non-resident withholding rate applies** (90% success)
   ```
   If a bank has already withheld at the wrong (47%) rate because no TFN or overseas address was on file, a resident can claim the excess back by lodging a tax return; a foreign resident should apply for a TFN and lodge a return to reclaim the difference if this happens.
   ```

## Dead Ends

- **Tell a newly arrived migrant or international student that a bank will not open or activate an account until they have an Australian TFN** — The ATO's own guidance on bank accounts and income bonds confirms a TFN is not a precondition for opening an account - it only affects how much tax is withheld from interest. Withholding without a TFN applies at the top marginal rate (47%, being the 45% top rate plus the 2% Medicare levy), which is a tax consequence, not a barrier to opening the account itself. (60% fail)
- **Tell a foreign tax resident (someone not living in Australia, or a temporary visitor) that they need to apply for an Australian TFN the same way a resident does, to avoid losing money on bank interest** — The ATO states foreign residents who only receive Australian-sourced interest, dividends or royalty payments do not need a TFN. Instead, if they give the financial institution their permanent overseas address, non-resident withholding tax of 10% applies to interest. Without that overseas address on file, the bank instead applies TFN withholding at 47%, which is far higher than the correct non-resident rate - so the fix for a foreign resident is providing an address, not obtaining a TFN. (55% fail)