Paid in Foreign Currency: The Tax Rules Nobody Explains

Being paid in foreign currency creates a tax problem that payroll software rarely solves: the salary you earned in euros, pounds or Swiss francs must be reported to your tax authority in its own currency, on the day the tax authority says it was earned, at the exchange rate the tax authority accepts. Get the date wrong, and you have understated (or overstated) income. Get the rate source wrong, and a routine audit turns into a correspondence exchange. And if the foreign currency sits in an account for weeks or months before being converted, a second taxable event may quietly accrue on the currency itself.

This article walks through how the United States, United Kingdom and Canada actually handle foreign-currency salary — timing of recognition, spot vs. average rate elections, contractor invoicing practice, and the currency-holding gain that catches most cross-border workers by surprise. It is informational; anyone with material foreign-currency income should engage a qualified adviser before filing.

The core problem: two conversions, two events

When salary is paid in a currency other than the taxing country's, the transaction is really two things stitched together. First, an employer discharges a wage obligation in a foreign currency on a specific date. Second, the recipient holds that foreign currency until it is either converted to the home currency or spent. Tax authorities treat these as distinct.

Event one is income recognition. It fixes the amount of wages that goes on the return, denominated in the reporting currency, using an exchange rate tied to a specific date. Event two is what happens to the currency itself between receipt and disposal. If the currency appreciates against the home currency before it is sold or spent, that appreciation is generally a separate item — treated as ordinary income under one regime, a capital gain under another, or ignored under a de minimis rule.

Most workers focus on event one and forget event two exists. The IRS, HMRC and CRA all have rules for both, and they do not align.

United States: spot rate default, annual average by election

US persons are taxed on worldwide income regardless of where they live, so a US citizen on a French payroll and a green-card holder working remotely from Lisbon both face the same reporting problem. The federal rate structure runs 10-37% and, under the One Big Beautiful Bill Act (July 2025), those brackets are now permanent; the standard deduction for 2026 is $16,100 single and $32,200 married filing jointly. Salary paid in euros still lands in one of those brackets — the question is how many dollars it becomes.

Translation: spot rate or yearly average

The IRS default is that foreign-currency income is translated to US dollars at the spot rate on the date the income is received (or, for accrual-basis taxpayers, the date it is accrued). For a monthly salary, that means twelve separate conversions, each at that day's rate.

The IRS also permits use of a yearly average exchange rate for income received evenly throughout the year, and publishes annual average rates for major currencies each January. Wage earners with roughly equal monthly payments generally elect the average rate because it is administratively simple and, over a full year, produces a result close to the sum of twelve spot conversions. A worker who received a large one-off bonus, a signing payment, or a mid-year lump sum should convert those specific items at the spot rate on the date received, even if the base salary is converted at the annual average.

Whichever method is used, it should be applied consistently across the return and documented — screenshots of the rate source, the date and the amount. The IRS accepts rates from any reasonable source (its own tables, a bank, Bloomberg, XE, OANDA) provided the source is used consistently.

The second event: IRC Section 988

Foreign currency held after receipt is a nonfunctional currency asset under Internal Revenue Code Section 988. If the currency appreciates against the dollar between the day it was received (basis) and the day it is disposed of (conversion, spending or transfer), the gain is generally ordinary income, not capital gain — reported on Form 1040 as other income and taxed at the marginal rate up to 37%.

There is a narrow safety valve. Section 988(e)(2) exempts personal foreign-currency transactions where the gain does not exceed $200 per transaction. A holidaymaker who buys €500, spends most of it, and converts €50 back a week later is not filing a Section 988 statement. A US citizen paid €5,000 per month who holds a rolling multi-thousand-euro balance and converts periodically is squarely inside the rule, and each conversion is a separate taxable event measured against the specific tranche of currency being converted.

Losses on personal currency holdings are not deductible; only gains are reportable. This asymmetry is why holding foreign-currency salary as a speculative bet on FX is rarely worthwhile for a US taxpayer.

Reducing the US tax bill on foreign salary

The Foreign Earned Income Exclusion excludes up to $132,900 of foreign earned income for 2026 for taxpayers who meet the physical presence or bona fide residence test. The Foreign Tax Credit provides a dollar-for-dollar credit for foreign income taxes paid on the same income, and is generally the better tool where the foreign country's rate exceeds the US rate. The choice between FEIE and FTC is one of the most consequential elections for a US worker on a foreign payroll and is worth modelling annually. Country-level context is on the United States profile.

United Kingdom: spot rate by default, HMRC monthly tables in practice

UK residents are taxed on worldwide income on the arising basis from 6 April 2025 following the abolition of the remittance basis; the new Foreign Income and Gains regime provides a 4-year exemption for qualifying new arrivals after 10 consecutive non-resident years, but it must be claimed each year and is much narrower than the old non-dom regime. For anyone outside the FIG window — the vast majority of UK-resident workers paid from abroad — foreign salary is fully taxable in the year it arises, at rates up to 45% plus National Insurance.

Translation to sterling

HMRC requires foreign-currency income to be translated into pounds sterling. The strict rule is that the rate on the date the income arose (spot rate) should be used. In practice HMRC publishes average and spot exchange rates monthly, and accepts translation using any of: the spot rate on the date of receipt, HMRC's monthly average rate for the month of receipt, or an annual average — provided the method is applied consistently within a return and across years unless there is a good reason to change.

For an employee on a stable monthly salary, HMRC's published monthly average is the pragmatic choice. For irregular receipts (bonuses, share vestings, contract milestones), the spot rate on the date of the specific receipt is usually more defensible.

The foreign currency account issue

HMRC's treatment of foreign currency held by individuals shifted in 2012. Since 6 April 2012, gains and losses on foreign currency held by individuals for personal (non-trading) purposes have generally been outside the scope of capital gains tax. A UK-resident employee paid in euros who leaves the balance in a euro account and converts it three months later is not, in most cases, triggering a UK CGT event on the euro appreciation itself.

The caveats matter. If the foreign currency is held as part of a trade, or used in an investment activity, ordinary income or CGT rules can apply. Foreign-currency-denominated deposit interest is taxable as savings income regardless of the personal-use exemption on the currency itself. And where the same foreign currency is used to buy an investment (foreign shares, a foreign property), the currency movement gets embedded in the base cost of that investment for CGT purposes when the investment is later sold. The multi-currency account explainer covers this in more detail.

Country-level context is on the United Kingdom profile.

Canada: CAD reporting, Bank of Canada or transaction-date rate

Canadian residents are taxed on worldwide income at combined federal-plus-provincial rates that range from roughly 33% to nearly 55% depending on province, with Ontario and Quebec at the top. All income on a T1 return is reported in Canadian dollars.

Translation rules

The CRA accepts translation of foreign income into Canadian dollars using either the Bank of Canada exchange rate in effect on the day the income was received, or an average rate for the period during which the income was received where the payments are periodic. Since 2017 the Bank of Canada has published a single daily rate per currency (replacing the earlier noon and closing rates), which is the CRA's preferred source but not the only permitted one — the CRA also accepts other sources provided they are widely available and used consistently.

Section 39(2) and the CAD$200 de minimis

Canada treats foreign-currency gains and losses on capital account under Section 39(2) of the Income Tax Act. Where an individual disposes of foreign currency held on capital account, the gain or loss is a capital gain or loss, half of which is included in income under the 50% inclusion rate (the proposed two-thirds inclusion was cancelled by the Carney government in March 2025). The first CAD$200 of net foreign-currency gain or loss in a year is disregarded — a de minimis rule that catches routine personal FX activity but leaves substantial holdings squarely inside the regime.

Compared with the US Section 988 rule, this is a meaningfully lighter outcome: currency appreciation on held salary is a capital gain in Canada (50% inclusion) rather than fully-taxed ordinary income. It is still a distinct event from the wage recognition on receipt, and the base cost of each tranche of foreign currency should be tracked from the day it was earned.

Country-level context is on the Canada profile.

Contractors and freelancers: invoicing choices matter

Employees are on payroll and rarely control the currency of their pay. Contractors do control it, and the invoicing decision has tax consequences.

• Invoicing in the client's currency pushes the FX risk to the contractor and puts the recognition date squarely on invoice-payment day. This is the simplest for the client and the most common in practice.
• Invoicing in the contractor's home currency pushes FX risk to the client and produces a home-currency receipt with no translation issue at all. Larger clients often push back.
• Invoicing in a third currency (USD is common for cross-border services) means both parties are converting. The contractor still has a translation event, and the currency is held between invoice and conversion.

For a US contractor invoicing in euros, the sequence is: revenue recognised in USD at the spot rate on the payment date; the euros held in a business account create a Section 988 exposure on subsequent conversion; deductible expenses paid in euros are translated at the rate on the date of the expense, not the rate on the day the fee was received. Keeping a running foreign-currency ledger with per-tranche basis is the only reliable way to compute the Section 988 result at year-end.

Contractors working with a foreign employer through an intermediary should also review the underlying employment classification. The remote-worker foreign-employer explainer and the remote worker tax planning guide cover the structural options.

Timing: when is salary "received"?

All three tax authorities anchor income recognition to a date, but the operative date is not always payroll's pay date.

The trap is deferred compensation. A bonus declared in December but paid in February crosses a tax year, and often crosses a currency movement. Payroll systems that convert at payment date can produce a different reportable amount than the tax rules require if the operative recognition date is earlier. Cross-border equity is a subset of this problem and is covered in the stock options and RSU cross-border explainer.

Practical framework

For anyone paid in a foreign currency who reports to the US, UK or Canada:

• Fix the reporting method up front. Pick spot or annual/monthly average and apply it consistently. Document the rate source (IRS annual averages, HMRC monthly tables, Bank of Canada daily rate).
• Treat lumpy items separately. Bonuses, signing payments and equity vestings should always be at the spot rate on the specific event date, not folded into a yearly average.
• Keep a foreign-currency ledger. Every receipt is a new tax lot with its own basis. Every conversion or spend is a disposal against the earliest lots (FIFO) unless specific identification is available. This is the only way to compute Section 988 (US) or Section 39(2) (Canada) at year-end.
• Model FEIE vs FTC annually (US). The choice changes with income levels, foreign tax rates and the annual average FX rate.
• Understand the FIG window if new to the UK. The 4-year exemption is claim-only and does not apply automatically.
• Convert on the payment day if in doubt. Holding foreign currency creates a second taxable event under both US and Canadian rules. The UK personal-use exemption is narrower than it looks once investments and business use are involved.

All rates and thresholds cited are as of 2026 and can change with subsequent budgets and IRS/HMRC/CRA guidance. Anyone acting on the framework above should verify current rules with a qualified cross-border tax adviser before filing.

Where to go next

The expat currency-exchange gains explainer covers the second-event issue in more depth, including examples with US, UK and Canadian residents. The cross-border transfer explainer covers the tax friction of moving money once the salary is received. For jurisdiction context see the US, UK and Canada profiles, or use Compare to line up the three regimes side by side. General questions on cross-border taxation are indexed on the FAQ.