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For self-published authors

Keep more of your royalties.

KDP, paperback and audiobook royalties land in dollars, with US tax skimmed off the top. We sort your W-8BEN, reclaim what's yours, and report it all to HMRC the right way.

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Sound familiar?

Amazon is withholding 30% US tax — can I get that back?

My royalties come in dollars from abroad — how do I report that?

Can I claim editing, cover design and my ads?

Publishing income has its own rules. Here's what we take off your plate.

What we sort for you

From manuscript to tax return, sorted.

US withholding tax fixed — we get your W-8BEN in place so Amazon withholds 0%, not 30%, under the UK–US treaty.
Royalties reconciled — KDP, print-on-demand and audiobook (ACX) income across currencies, pulled together.
Foreign income reported right — declared to HMRC correctly, with no double taxation.
Every expense captured — editing, proofreading, cover design, ISBNs, ads and software.
Self Assessment, filed — accurate and on time, structured to keep your tax as low as it should be.

Without a W-8BEN, Amazon keeps 30% of every royalty payment

US tax law defaults to withholding 30% on royalties paid to non-US residents. The UK–US tax treaty brings that to 0% — but only once a valid W-8BEN is on file with Amazon. On a $1,000 royalty payment:

Royalty payment, no W-8BEN on file$1,000The 30% US default withholding applies
US tax withheld−$300Gone before the money reaches you
= What lands in your account$700And you still owe UK tax on the income
Same payment, valid W-8BEN on file$1,0000% withheld under the UK–US treaty

A W-8BEN costs nothing and takes minutes in KDP's tax interview — but it is generally valid only to the end of the third calendar year after you sign it, then it needs renewing. Let it lapse and the 30% quietly comes back.

Source: gov.uk — UK–US Double Taxation Convention

KDP & self-publishing tax, answered

Why is Amazon withholding US tax on my royalties?

By default the US withholds 30% on royalties paid to non-residents. As a UK author you can usually reduce this to 0% by completing a W-8BEN form, thanks to the UK–US tax treaty. We make sure it's filed correctly so you stop losing money.

Do I have to declare KDP income to HMRC?

Yes — your worldwide royalty income is taxable in the UK and must go on your Self Assessment, even if it's paid in dollars from the US. We convert and report it properly.

What expenses can a self-published author claim?

Editing, proofreading, cover design, formatting, ISBNs, advertising, writing software and research costs are typically allowable — reducing the profit you pay tax on.

I spend my royalties on Amazon ads — do I still declare them?

Yes. Royalties are taxable income when you earn them, even if every penny goes straight back into ads. The ad spend is an allowable expense, so it reduces the profit you're taxed on — but it never removes the duty to declare. Authors who net the two off and report nothing are the ones who get the awkward HMRC letter.

Write the next book — we'll mind the numbers.

Book a free, no-pressure call and we'll take it from here.

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