How to Actually Claim FITO on Your US Withholding

This is the direct sequel to Why Your US Dividends Are Being Taxed Twice — And What You Can Do About It. If you have not read that piece, the short version is this: under the US–Australia tax treaty, a US company withholds 15% of any dividend paid to an Australian resident who has an up-to-date W-8BEN on file with their broker — 30% if there is no valid form in place. That withholding never reaches your Australian brokerage account.

The Foreign Income Tax Offset — FITO — is how Australia stops that income being taxed twice. It is not a refund from the IRS. The United States keeps the treaty-rate 15%. What FITO does is reduce the Australian tax on the same dividend. This piece is about claiming that offset correctly.

What FITO Is, in Plain Terms

FITO is a non-refundable tax offset. It reduces the Australian income tax, Medicare levy, and Medicare levy surcharge you would otherwise pay, dollar for dollar, up to a limit. “Non-refundable” means it can bring your tax payable down to zero. It cannot generate a cash refund beyond that, and it cannot be used against anything other than your own tax liability for that year.

Two rules follow from that, and both trip people up every year.

First, unused FITO cannot be carried forward. If the foreign tax you paid exceeds what you are allowed to claim in the year the income was assessable, the excess is lost. This is not a capital loss you can bank for a stronger year. There is no later claim.

Second, the amount you claim is the lesser of two figures: the foreign tax you actually paid, and your FITO limit for the year. Under $1,000 of foreign tax, the ATO lets you skip the limit calculation. Over $1,000, you either cap the claim at $1,000 or work the limit out.

One related escape hatch is worth knowing before anyone panics: if you underclaim, or the foreign tax is paid after the Australian year the income was assessed, you can amend. The ATO allows an amendment for FITO up to four years from the date the foreign tax was paid. Missed AMMA lines are not always gone forever. Unused FITO still cannot be saved for next year.

Where It Goes in myTax

For most individual investors lodging through myTax, the claim sits under Offsets, labelled Foreign income tax offset. myTax will usually surface this section once you have shown foreign tax paid in Income statements, Managed fund and trust distributions, Foreign income, or Other income.

If you are lodging on paper or through a registered tax agent using the supplementary tax return, foreign income is disclosed at Item 20, Foreign source income and foreign assets or property. The offset amount then flows through to the tax offsets calculation.

Either way the mechanics are the same: declare the gross foreign dividend, then separately claim the foreign tax offset for the amount withheld.

The $1,000 Rule — And Why It Is Worth Knowing Even If You Are Over It

If the total foreign tax you paid across the financial year — not just from US shares, but from every foreign source combined — is $1,000 or less, you do not need to do any limit calculation. You declare the actual amount paid and claim it in full.

If your total foreign tax paid exceeds $1,000, you have two choices. You can claim $1,000 and move on — quick, but you forfeit the rest permanently, with no carry-forward. Or you work out your actual FITO limit, which for most people with meaningful US share exposure will be considerably more than $1,000 and worth the extra calculation.

How the limit is calculated

The ATO method is a three-step comparison. Both Step 1 and Step 2 include the Medicare levy and the Medicare levy surcharge, and both ignore every tax offset — including LITO, SAPTO, and FITO itself.

1. Work out the income tax you would pay for the year on your full taxable income, including Medicare levy and Medicare levy surcharge, ignoring all tax offsets.
2. Work out the income tax you would pay on a hypothetical taxable income that excludes your net foreign income and any deductions directly connected to it — again including Medicare levy and surcharge, and again ignoring offsets.
3. Subtract Step 2 from Step 1.

The FITO limit is the greater of $1,000 and that Step 3 difference. Your claim is the lesser of the foreign tax paid and that limit. A low Step 3 result does not drag you below $1,000 if you have paid at least $1,000 of foreign tax.

In plain terms: the limit is the amount of Australian tax that your foreign income itself is actually responsible for generating. It is the incremental tax on that slice of income, not simply your top marginal rate multiplied by the dividend. Bracket crossings, the tax-free threshold, and the 2% Medicare levy all sit inside the two-pass calculation.

If your Australian tax on that slice is higher than the 15% the US withheld — which it usually is for a working investor — the full withholding is generally recoverable. The limit starts to bite in less common situations: a low-income year, large deductions or losses that shrink taxable income relative to your foreign income, a year where foreign income is a very large share of the total, or a year where 30% was withheld because no current W-8BEN was on file.

FITO is also applied after other non-refundable, non-transferable offsets. In a year where LITO, SAPTO, or another offset has already reduced tax payable, there is less room left for FITO. That is one reason a low-income year can waste withholding you cannot use later.

Two worked examples

Figures below are illustrative for 2025–26 resident rates. They include the 2% Medicare levy, assume no Medicare levy surcharge, ignore other offsets (as the ATO method requires), and assume no deductions tied to the foreign income. Do not copy them onto a return.

Example A — ordinary working year, full claim

• Australian salary and other taxable income: $120,000
• Gross US dividends: $10,000
• US withholding at 15%: $1,500

Step 1, tax on $130,000 including Medicare levy: $32,388
Step 2, tax on $120,000 including Medicare levy: $29,188
Limit: $32,388 − $29,188 = $3,200

Foreign tax paid ($1,500) is below the $3,200 limit, so the full $1,500 is claimable. Defaulting to a flat $1,000 claim here would throw away $500 for no reason.

Example B — no W-8BEN, the cap bites

• Australian salary and other taxable income: $40,000
• Gross US dividends: $12,000
• US withholding at 30% (no current W-8BEN): $3,600
• Taxable income: $52,000

Step 1, tax on $52,000 including Medicare levy: $7,428
Step 2, tax on $40,000 including Medicare levy: $4,288
Step 3 difference: $7,428 − $4,288 = $3,140

The FITO limit is the greater of $1,000 and $3,140, so the limit is $3,140. Claim the lesser of $3,600 and $3,140: $3,140. The extra $460 is gone.

A current W-8BEN would have withheld $1,800 instead of $3,600, and that $1,800 would have sat inside the limit. The missing form did not just lock up cash for a year. It turned into a permanent loss.

Five Ways People Leave Money on the Table

1. Assuming excess FITO carries forward

Covered above, and worth repeating because it is the single most common misunderstanding: it does not. If you are heading into a low-income year, that is the year to make sure you are not forfeiting foreign tax you cannot fully use.

2. No current W-8BEN on file

This is the error that causes the problem in the first place, not just the claim afterward. If your broker does not have a valid W-8BEN, the US defaults to withholding 30% instead of the treaty rate of 15%.

Most Australian brokers dealing in US shares handle this on onboarding today, but it is worth checking directly on older accounts, accounts opened before a platform changed its default process, or accounts held via a custodian rather than in your name. A W-8BEN generally expires at the end of the third calendar year after the year it was signed, unless a US tax identification number is on the form or your circumstances change. “We did one at signup” is not the same as “it is still current.”

The extra 15% is still creditable via FITO in principle, but it locks up more of your cash for the better part of a year, and it raises the chance the amount withheld exceeds your calculated limit in a low-income year. If 30% was withheld when 15% should have been, the extra slice may also be recoverable from the IRS — a separate, slower process. FITO is not that refund. Do not treat them as interchangeable.

Individuals use W-8BEN. Companies and SMSFs use W-8BEN-E.

3. Missing it inside a fund

If you hold US shares indirectly through an Australian-domiciled ETF or managed fund — an S&P 500 or global equities fund, for instance — the underlying US withholding is still being paid. Your share of the FITO is passed through on the fund’s Annual Tax Statement or AMMA statement, usually as a small line item most investors never look at.

ATO pre-fill in myTax will often pick this up from the fund’s own reporting, but pre-fill can lag if a fund finalises its tax statement late. Do not assume it is there. Check the actual AMMA statement against the pre-filled return before you lodge.

One distinction matters for this readership. Australian-domiciled ETFs and AMITs generally pass a foreign tax offset through that statement. US-domiciled ETFs held via ASX CDIs — products such as IVV or VTS — behave more like a direct US holding. Withholding happens at source, and there may be no neat AMMA FITO line. “I own the S&P 500” does not tell you which reporting pack you will get.

4. Getting the currency conversion wrong

Foreign income and foreign tax paid both need to be converted to Australian dollars before you can work out either your assessable income or your offset. The ATO expects a consistent, defensible method — generally the exchange rate at the time the income was derived, or an appropriate average rate for the period that reasonably approximates the relevant spot rates. It is not whatever rate happened to be convenient on the day you sat down to do your tax, and an end-of-year rate is not a free choice for income derived earlier.

Use the same method for the gross dividend and the tax withheld. Mixing a payment-date rate for income with an annual average for tax is how people invent a false offset.

If you hold directly and receive multiple dividends through the year, your broker’s consolidated annual tax statement will usually already have done this conversion. If you are working from raw US 1099-style statements, use the ATO’s foreign income conversion calculator rather than improvising. Remember the calendar mismatch too: US payers report on a calendar year; you lodge for 1 July to 30 June. Follow the broker’s Australian-year tax statement, not a raw 1099 total.

5. Declaring net income instead of gross

This is a genuine and easy error. Your assessable foreign income for Australian tax purposes is the gross dividend — before the 15% was taken out — not the net amount that landed in your account. If you only declare what you received, you understate assessable income and, in doing so, understate the amount your FITO claim is meant to sit against. Gross the dividend up first, then separately claim the tax that was withheld as the offset.

A Word on SMSFs

SMSFs can claim FITO. The $1,000 shortcut, the three-step limit, and the no-carry-forward rule all operate at the fund level. That is where the similarity ends, and it is not a corner to cut.

FITO is only available to the extent the related income is included in the fund’s assessable income. Exempt current pension income is not assessable. In a year the fund is entirely in pension phase, US withholding is often a dead cost — there is no Australian tax on that income for FITO to reduce. In a mixed or unsegregated fund, the claim is generally limited to the assessable, non-ECPI portion. The $1,000 shortcut does not let the fund claim withholding that belongs to exempt income.

In accumulation phase the fund rate is 15%, so treaty-rate US withholding often saturates the Australian tax on that slice. That makes the cap and the ECPI interaction more important here than for an individual on 30% or 37%.

SMSFs and other entities use W-8BEN-E, not W-8BEN. Given the compliance stakes in SMSF lodgement, this is a place for a registered tax agent or SMSF specialist.

The Checklist

Before you lodge:

• Confirm every US holding has a current W-8BEN on file with your broker — or W-8BEN-E for an SMSF or company. Check this now, not at tax time, and check the expiry.
• Pull your broker’s consolidated annual tax statement and total the foreign tax withheld across all holdings for the Australian income year.
• If the total is $1,000 or less, claim it in full and move on.
• If it is more than $1,000, run the three-step limit calculation before defaulting to a flat $1,000 claim. For most working investors it will get you a larger, fully legitimate offset. If the Step 3 difference comes in below $1,000, claim $1,000 if you have paid that much — not the lower Step 3 figure.
• Cross-check any Australian-domiciled ETF or managed fund against the AMMA statement rather than assuming myTax pre-fill has captured everything. Do not treat a US-domiciled ASX ETF as if it came with an AMMA FITO line.
• Declare the gross dividend as assessable income, and claim the withheld amount separately as the offset. Convert both using the same defensible rate.
• Keep the broker statement, AMMA statement, and conversion working papers with your tax records.
• If you are in, or expecting, a genuinely low-income year, treat unused FITO as gone. If you discover a missed amount after lodgement, look at amendment — you may still have time — but you cannot park it for next year.

For a straightforward individual investor holding US shares directly or through a standard Australian ETF, though, this is genuinely a case where a short extra calculation at tax time is the difference between claiming what you are owed and quietly donating it to two tax offices instead of one.

⚠️ None of this is personal tax advice, and it is not a substitute for a registered tax agent — particularly if you hold US shares through a trust, a company, or an SMSF, if you are in pension phase, or if your total foreign tax paid is large enough that the limit calculation is doing real work.

Data Sources:

• Australian Taxation Office, myTax 2026: Foreign income tax offset
• Australian Taxation Office, Guide to foreign income tax offset rules 2026
• Australian Taxation Office, Claiming a foreign income tax offset
• Wall St. Down Under, Why Your US Dividends Are Being Taxed Twice — And What You Can Do About It (May 2026)

Wall St. Down Under | Australia

Subscribe | wallstdownunder.com.au

Disclaimer: Wall St. Down Under is an independent financial newsletter for informational and educational purposes only. Nothing published here constitutes financial advice, a recommendation to buy or sell any security, or a solicitation of any investment decision. Always do your own research and consult a licensed financial adviser before making investment decisions. Australian investors should consider their own financial situation, objectives, and risk tolerance. Past performance is not indicative of future results.