Are book royalties taxable in Canada, and how are KDP royalties reported?

Business income or other income: what decides it

Whether royalties count as business income or other income depends on whether writing is carried on as a business, not on the size of the cheque. An author who publishes multiple titles, actively markets them, and treats writing as an ongoing commercial activity reports royalties on Form T2125 alongside any other self-employment income, deducting related expenses along the way.

An author who wrote one book years ago and receives modest, irregular royalty payments with no ongoing publishing activity more often reports that income as other income on the T1, without the T2125 business schedule. The distinction matters because business income allows expense deductions and factors into GST/HST registration, while other income generally does not carry the same deduction structure.

Most self-published authors actively using Kindle Direct Publishing, IngramSpark, or a similar platform on an ongoing basis fall on the business-income side of that line, since the activity involves real commercial effort: cover design, editing, marketing, and repeat publishing.

How the Canada-US treaty reduces withholding on KDP and IngramSpark payments

Amazon KDP and IngramSpark are US-based platforms, and under US tax rules, royalty payments to a non-US person are subject to withholding at source unless the recipient claims a treaty benefit. A Canadian author who submits a W-8BEN through their KDP or IngramSpark tax interview, correctly claiming Canada-US tax treaty benefits, generally reduces the US withholding rate on copyright royalties to 0% under Article XII(3) of the treaty, which specifically covers copyright royalties for literary and artistic works.

Without a completed W-8BEN on file, the platform is required to apply a default US withholding rate, commonly 30%, before paying you. That withholding is avoidable rather than a permanent cost, so the first thing worth checking if a KDP or IngramSpark statement shows tax withheld is whether the tax interview was completed correctly and is still current.

The platform issues a 1042-S slip reporting any US tax actually withheld during the year. If withholding was applied in error after a valid treaty claim, or before the paperwork was corrected, that amount may be recoverable through a US non-resident filing, but the more direct fix going forward is making sure the W-8BEN is properly on file so no withholding happens in the first place.

Completing the W-8BEN correctly

The treaty benefit only applies once the W-8BEN is filled out correctly inside the KDP or IngramSpark tax interview, with the right treaty article selected for royalty income and a valid Canadian address and taxpayer identification number on file. A form submitted with the wrong income category selected, or left incomplete, can result in the platform defaulting to standard withholding even though the author intended to claim the treaty rate, which is why it is worth reviewing the interview responses rather than assuming the form was accepted correctly the first time.

The form generally needs to be renewed periodically, and a lapsed or expired W-8BEN on file is one of the more common reasons an otherwise treaty-eligible author sees unexpected withholding reappear on a statement after months of receiving royalties tax-free.

Traditional publisher royalties and audiobook platforms

An author working with a traditional Canadian publisher generally receives royalties already in Canadian dollars with no US withholding involved at all, since the publisher is a Canadian payer; the treaty and W-8BEN mechanics described above apply specifically to US-based platforms like KDP, IngramSpark, and similar services. An author who also distributes an audiobook through a US platform such as ACX faces the same treaty analysis as a KDP royalty, and the same W-8BEN, once correctly on file, generally reduces withholding on that income the same way.

Where an author works across a traditional publisher, a self-publishing platform, and an audiobook distributor at the same time, each relationship is tracked on its own statement but all of it consolidates onto the same T2125 as one publishing business, rather than being filed as separate, unrelated income sources.

Reporting the full royalty amount in Canada

Once the treaty eliminates US withholding, the entire royalty amount is taxable in Canada, converted to Canadian dollars using the exchange rate in effect when each payment was received, or a reasonable average rate for the year applied consistently. This is the same principle used for any other USD business revenue, covered in how to record USD transactions in Canadian books.

If any US withholding was applied despite a valid treaty claim, that amount can generally be claimed as a foreign tax credit against Canadian tax on the same income, so it is not simply lost, though avoiding the withholding at source through a correct W-8BEN remains the cleaner outcome.

Where GST/HST fits for royalty income

Amazon and IngramSpark are non-resident companies purchasing the right to distribute your book, and a supply to a non-resident recipient is generally treated as a zero-rated export for GST/HST purposes. If you are registered, you charge no tax on the royalty itself but can still claim input tax credits on related business expenses, such as editing, cover design, and software.

Registration is still required once your total business income, including royalties from all titles and platforms, passes the $30,000 small supplier threshold over four consecutive quarters, even though the royalty revenue itself will not carry GST/HST once you are registered.

Deductible costs for an active author

An author reporting business income can deduct the ordinary costs of producing and selling books: editing, proofreading, cover design, ISBN purchases, formatting services, advertising, and a proportionate share of home-office costs where writing is carried out in a dedicated space. Deducting these costs against royalty income is one of the practical advantages of qualifying as a business rather than reporting under other income, which is generally why an author publishing on an ongoing basis benefits from tracking expenses carefully from the first title onward.

How we handle royalty income

We help authors confirm the KDP and IngramSpark tax interview is completed correctly so US withholding is reduced at source rather than recovered later, reconcile royalty statements across platforms and currencies, and file the income on a T2125 with the related production expenses deducted properly. Our authors and self-publishers tax services page covers the full range of royalty and publishing income we work with.