Form 8938 versus FBAR threshold checker
Test your foreign assets against both US reporting thresholds at once.
Open itThree tests decide whether renouncing citizenship or surrendering a green card triggers a mark-to-market charge, and failing any one of them is enough. Enter your figures and this names the tests you fail and estimates the charge.
Worldwide assets less liabilities, valued on the day. Interests in trusts and pensions are included on their own rules.
Two million dollars, and it is not indexed. Editable in case it changes.
Net income tax, not income and not tax paid. Take it from the five returns.
The indexed figure for 2025. Change it to the figure for your own expatriation year.
Untick if any of the five years is unfiled or incorrect. This test alone makes you covered, whatever your net worth.
Market value less basis across everything, as if sold the day before expatriation.
The indexed figure for 2025. Change it to the figure for your own year.
Blend of the capital gains rate and the investment income surtax where it applies. Your own figure.
Estimated mark-to-market charge
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Status —
Which tests were failed
You are a covered expatriate if your net worth reaches two million dollars, or your average annual net income tax over the five preceding years exceeds the indexed threshold, or you cannot certify five years of full tax compliance. They are alternatives, not a cumulative test, and the third one has no dollar figure attached at all.
That third test is the one that catches people who are nowhere near the money thresholds. An expatriate of modest means with two unfiled years is a covered expatriate, and the mark-to-market charge applies to their whole unrealised gain. Fixing the filing history before the expatriation date is therefore usually the cheapest planning available.
A covered expatriate is treated as having sold everything they own the day before expatriating, at market value. The net gain across all property is reduced by an indexed exclusion and the remainder is taxable. Deferred compensation, specified tax-deferred accounts and interests in non-grantor trusts each follow their own rules rather than the mark-to-market one, so the estimate here covers ordinary property only.
Both money thresholds move: the average tax figure and the exclusion are indexed annually, and the prefilled values here are the 2025 figures. Change them to the ones for your own expatriation year before relying on the output. The two-million net worth figure is statutory and is not indexed.
Worked example
A long-term green card holder with a net worth of 1.8 million dollars, average annual net income tax of 190,000 over the five preceding years, and 1.4 million of net unrealised gain.
The swing between those two states, on the same assets, is the entire argument for cleaning up the filing history first.
An estimate, not advice. This is an estimate built from what you typed, not advice on your file. Nothing here reads your documents, checks your treaty article or looks at the year you are actually in. Where the number matters, we agree a fixed fee in writing before any work starts.
Any figure prefilled in the panel above is stated with the year it belongs to and can be changed. Rates and thresholds move; a calculator that asks you for the current one stays right, and one that hides a guess does not.
The master file is a picture of the business rather than of one company, and it has to agree with what each local file says. Assembling it surfaces inconsistencies between entities that nobody had compared.
Read how this one runsHolding period and instrument decide the character of the gain, and the deduction at source applies before any of that is considered. The return is where the position is corrected.
Read how this one runsThe departure year carries a transition status with its own treatment of foreign income, and the position for the following years follows from how it is set. Getting the first year right saves arguing about the rest.
Read how this one runsState obligations are set by each state, and a treaty does not reach them. The review measures activity against each state's own thresholds and separates the states where registration is required from the ones where it is not.
Read how this one runsRelief is discretionary and is decided on the circumstances that caused the delay, evidenced year by year. The application is built from the same chronology the filings rest on, so the two cannot contradict each other.
Read how this one runsWhere non-compliance was not inadvertent, the certification-based routes are unavailable and a different practice applies, with its own protections and its own price. Establishing which side of that line the facts fall on is done before contact is made.
Read how this one runsA payer must withhold from fees paid to a non-resident for services rendered in Canada, whether or not any tax is ultimately owed. A waiver applied for before the work is invoiced avoids the withholding; after it, the money comes back through a return.
Read how this one runsHolding a green card does not end the US filing obligation, and living in Canada starts a Canadian one. The engagement fixes residence under the treaty tie-breaker, then decides which return the relief is claimed on so the two do not contradict each other.
Read how this one runsAll case studies — every published engagement in one place.
Strategy and compliance for income, assets and families spread across borders.
Firms and partners working across borders meet Regulation 105 withholding, PE risk on long engagements and per-country payroll for travelling staff.
A partnership is taxed in the hands of its partners, so one engagement abroad can reach every partner's personal return. The order matters: the waiver is applied for before the invoice, the presence is tracked before it becomes an establishment, and the payroll is registered before the first day worked in the other country.
Test your foreign assets against both US reporting thresholds at once.
Open itWork out the 3.8 per cent surtax on investment income.
Open itCheck which streamlined track fits and what the penalty would be.
Open itHow this desk handles the work behind the numbers, at a fixed fee agreed before it starts.
Read the pageHow this desk handles the work behind the numbers, at a fixed fee agreed before it starts.
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Where our partners studied — CPA Canada (In-Depth Tax Program), AICPA, the Institute of Chartered Accountants of India and the Malaysian Institute of Accountants.