Direct answer
In Canada, “forex income” on a tax return is not one single tax category. The way you report it generally depends on what the foreign-exchange activity represents for you (for example, part of a business/inventory activity, part of employment, or capital/investing activity). Because the tax outcome can change with the facts, a useful starting point is classification: what kind of income or gain/loss it is, and what event triggers measurement (such as when you dispose or settle positions).
How it works (mechanics)
Forex results usually come from the change in value between when you acquire foreign currency (or a forex-related position) and when you dispose of or settle it. To report, you typically need to translate that change into Canadian dollars using exchange rates consistent with your bookkeeping approach.
A practical way to structure your reporting is to separate:
- Activity category: Is it tied to business operations, employment, or investing/capital-like activity?
- Realization timing: Are results measured when you close/settle positions, or are they tracked continuously in your accounting?
- Measurement: What Canadian-dollar amounts correspond to your entries (purchase cost, proceeds, fees, and conversion amounts)?
If you have both realized gains/losses (from closed positions) and unrealized amounts (still open), the tax treatment may not match your accounting presentation. For this reason, tax reporting often focuses on amounts you have actually realized/settled, aligned with the applicable rules for your classification.
Example or checks (verification you can do)
Use your records to produce a reconciled summary:
- List each forex transaction with the date, foreign-currency amount, Canadian-dollar equivalent, and settlement/closing date.
- Compute per-transaction results: difference between the Canadian-dollar cost and the Canadian-dollar proceeds/settlement, adjusted for any transaction costs you appropriately include in your accounting.
- Check consistency: ensure the Canadian-dollar amounts used in your tax figures match the same measurement basis you used in your bookkeeping.
- Confirm classification: if the same account mixes different sources (for example, employment-related currency amounts plus investing activity), your reporting may need separate treatment.
Limitations and risks
This is a general educational explanation. The correct reporting method in Canada depends on your facts (especially the activity category) and on the timing of when you settle or realize results. Because tax rules and administrative interpretations can vary and change, you should verify the classification that applies to your specific situation and keep documentation that shows how you measured Canadian-dollar amounts and computed gains or losses.