Which exchange rate do I use to convert my client's foreign income to Canadian dollars?
For 2025 returns, convert foreign income at the Bank of Canada rate for the day each amount arose, or at the 2025 annual average (US dollar 1.3978) when payments came in at various times through the year. Foreign tax withheld uses the same rate as its income. Capital property uses each transaction's own date.
Which rate applies to each kind of foreign amount?
Subsection 261(2) requires Canadian tax results in Canadian dollars, with each foreign amount converted at the relevant spot rate for the day it arose. Subsection 261(1) defines that rate as the Bank of Canada rate for the day, or another rate acceptable to the Minister laws-lois.justice.gc.ca. The CRA's guidance then sets a practical rate for each kind of amount.
| Amount | Rate to use | CRA source |
|---|---|---|
| One foreign interest or dividend payment | Bank of Canada rate on the day it arose | Line 12100 page |
| Monthly pension or several payments through the year | Annual average rate | Line 40500 page |
| Foreign business income | Average rate for the period, if that's your client's normal reporting method | Folio S5-F2-C1, 1.42 |
| Foreign tax withheld | The same rate used for the income it came from | Folio S5-F2-C1, 1.42 |
| Proceeds of a capital property sale | Rate at the time of the sale | Line 12700 page |
| ACB of that property | Rate at the time it was acquired | Line 12700 page |
| Outlays and expenses on the sale | Rate at the time they were incurred | Line 12700 page |
For interest and dividends, the CRA starts from the Bank of Canada rate on the day the amount arises and says an average over the relevant period may be used canada.ca. For a monthly pension or multiple payments at different times, it points to the annual average
canada.ca. The foreign tax credit folio says foreign tax should be converted at the same rate as the income itself, and that whichever method your client picks should be applied consistently from year to year
canada.ca.
What were the Bank of Canada annual averages for 2023 to 2025?
The Bank of Canada publishes one annual average per currency, expressed as Canadian dollars for one unit of the foreign currency bankofcanada.ca. These are the figures for the currencies Canadian clients hold most often.
| Currency | 2025 | 2024 | 2023 |
|---|---|---|---|
| US dollar | 1.3978 | 1.3698 | 1.3497 |
| Euro | 1.5782 | 1.4818 | 1.4597 |
| UK pound | 1.8420 | 1.7504 | 1.6784 |
| Swiss franc | 1.6846 | 1.5558 | 1.5024 |
| Australian dollar | 0.9009 | 0.9035 | 0.8967 |
| Hong Kong dollar | 0.1793 | 0.1755 | 0.1724 |
| Chinese renminbi | 0.1944 | 0.1903 | 0.1907 |
| Mexican peso | 0.07284 | 0.07520 | 0.07618 |
| Indian rupee | 0.01605 | 0.01637 | 0.01635 |
| Japanese yen | 0.009350 | 0.009050 | 0.009630 |
As of October 2026 there is no 2026 annual average yet. The Bank publishes the annual averages by 12:30 ET on the last business day of the year bankofcanada.ca. For a 2026 amount that arose on a known date, use that day's rate, which the Bank publishes once each business day by 16:30 ET
bankofcanada.ca.
How do you convert a euro pension with tax withheld?
Your client received a foreign pension of €800 a month through 2025, and the payer withheld €120 of tax each month. The payments came in at different times through the year, so the 2025 euro annual average of 1.5782 converts both the income and the tax.
| Item | Euros | Rate | Canadian dollars |
|---|---|---|---|
| Gross pension (12 x €800) | €9,600 | 1.5782 | $15,150.72 |
| Foreign tax withheld (12 x €120) | €1,440 | 1.5782 | $2,272.61 |
| Net received | €8,160 | 1.5782 | $12,878.11 |
The income goes on the return at the gross $15,150.72, and the $2,272.61 of foreign tax supports the foreign tax credit. The CRA tells filers not to subtract foreign taxes from the income they report canada.ca. Converting the tax at a different rate from the income is the mismatch the folio warns against
canada.ca.
Why a US stock sale needs two exchange rates
For capital property bought or sold in a foreign currency, the CRA converts each piece on its own date: proceeds at the rate when the property was sold, the ACB at the rate when it was acquired, and outlays at the rate when they were incurred canada.ca. The foreign tax credit folio adds that the rate for a capital gain should approximate the rate when the gain was realized
canada.ca. The same line 12700 page's reporting step also allows the Bank of Canada annual average when there were transactions at various times through the year
canada.ca, so for a large single sale, the day's rate is the safer match to the folio.
Assume your client bought 100 shares for US$5,000 when the Bank of Canada rate was 1.3500, then sold them for US$6,000 with a US$10 commission when the rate was 1.4200.
| Step | US dollars | Rate | Canadian dollars |
|---|---|---|---|
| Proceeds | $6,000 | 1.4200 (sale date) | $8,520.00 |
| ACB | $5,000 | 1.3500 (purchase date) | $6,750.00 |
| Commission | $10 | 1.4200 (sale date) | $14.20 |
| Capital gain | $990 | $1,755.80 |
Converting the US$990 gain at the sale rate alone gives $1,405.80, which understates the gain by $350.00. That $350 is the currency move on the original US$5,000 (US$5,000 x 0.07), and it belongs in the capital gain. Check the dealer's box 20 cost before relying on it: the T5008 shows that book value in the trade currency, and your client's true ACB is the adjusted cost base across every purchase, each at its own rate.
When does the CRA refuse an average or another rate?
The CRA accepts an average rate over a period for some income items for practical reasons, but where exchange rates fluctuate significantly it says an average will not generally be accepted canada.ca. In a year when the currency swung hard, convert large single payments at the day's rate.
A rate from a source other than the Bank of Canada is accepted only if it meets every condition in the reporting currency folio: widely available, verifiable, published by an independent provider on an ongoing basis, recognized by the market, used under well accepted business principles, used in your client's financial statements and used consistently from year to year. The folio names Bloomberg L.P., Thomson Reuters Corporation and OANDA Corporation as examples canada.ca.
Two technical points catch preparers. When no Bank of Canada rate is quoted for the day (a weekend or a bank holiday), subsection 261(1) uses the closest preceding day with a quote. And when neither currency is the Canadian dollar, the rate is worked out from the Bank of Canada rate for each currency against the Canadian dollar laws-lois.justice.gc.ca.
Which rates go on Form T1135?
The T1135 instructions say to work out each amount in the foreign currency and then translate it. Generally, use the rate at the time of the transaction (when the income was received or the property was purchased), and an average rate for the year is acceptable for income received throughout the year canada.ca.
| T1135 amount | Rate |
|---|---|
| Cost amount | Rate when the property was purchased |
| Income received throughout the year | Annual average is acceptable |
| Maximum funds held during the year | Average rate for the year |
| Funds held at year end | Rate at the end of the year |
| Maximum fair market value during the year | Average rate for the year |
| Fair market value at year end | Rate at the end of the year |
Round every amount to the nearest dollar, and if the filer elected a functional currency under paragraph 261(3)(b), report in that currency instead of Canadian dollars canada.ca. Whether your client files at all depends on the $100,000 cost test on the T1135 filing requirements page.


Sources
Income Tax Act, section 261 (relevant spot rate, Canadian currency requirement)laws-lois.justice.gc.ca
Income Tax Act, section 39 (foreign currency gains, $200 for individuals)laws-lois.justice.gc.ca
Income Tax Folio S5-F4-C1: Income Tax Reporting Currencycanada.ca
Income Tax Folio S5-F2-C1: Foreign Tax Credit (conversion, paragraph 1.42)canada.ca
Line 12100: interest and other investment income (foreign income in Canadian dollars)canada.ca
Line 40500: federal foreign tax credit (exchange rates)canada.ca
Calculating and reporting capital gains and losses (foreign currency)canada.ca
Form T1135 and instructions (foreign currency conversion)canada.ca
Bank of Canada: annual average exchange ratesbankofcanada.ca
Bank of Canada: daily exchange ratesbankofcanada.ca
My client got paid on a Saturday. Which day's rate applies?
Friday's, if the Bank quoted a rate that day. Subsection 261(1) uses the closest preceding day for which the Bank of Canada quoted a rate laws-lois.justice.gc.ca, and the Bank publishes rates on business days only, with no rate on bank holidays
bankofcanada.ca.
Can my client use the rate their bank actually gave them?
Not as a rule. A rate other than the Bank of Canada's has to meet all the folio conditions, including publication by an independent provider and consistent use every year canada.ca. When your client later converts the foreign cash itself, the difference is a currency gain or loss, covered on the foreign exchange gain page.
Does an individual pay tax on every small currency gain?
No. Under subsection 39(1.1), an individual's net gains from dispositions of foreign currency count as a capital gain only above $200 for the year, and net losses only above $200 laws-lois.justice.gc.ca. Trusts don't get the $200.
Can a corporation report in US dollars instead?
Yes, if it elects a functional currency on Form T1296 on or before the day that is 60 days after the first day of the tax year. It must be a Canadian resident corporation (not an investment corporation, mortgage investment corporation or mutual fund corporation), and the currency must be the US dollar, euro, British pound, Japanese yen or Australian dollar and the primary currency of its books. A corporation gets only one election canada.ca.
General information for the tax year shown, not advice for a specific client. Confirm the facts before you file or remit.