Affiliate Disclosure — CryptoTaxCheck

Last updated: 27 September 2026.

We believe you should know exactly how a site that talks about your tax makes its money. Here is how CryptoTaxCheck does.

How we make money

CryptoTaxCheck has two sources of revenue:

1. Paid reports. The calculator is free to use. If you want a downloadable Tax Year Report (£29) or HMRC Letter Pack (£59), you pay us directly through Stripe.
2. Affiliate commission from Koinly. We are a member of Koinly's affiliate programme. When you click a Koinly link on our site and go on to buy a Koinly plan, Koinly pays us a commission. You pay the standard price shown on Koinly's site; the commission comes out of Koinly's revenue, not your pocket.

We have no other commercial relationships. We do not take payment from exchanges, wallets or crypto products, and we do not run display advertising on the calculator or letter pages.

How affiliate links are marked

Every Koinly link on this site is an affiliate link, and every one is labelled as such next to the link so you can see it before you click. The links pass through our own tracking address (a "/go/koinly" link) so that we can count clicks, and they carry the rel="sponsored" attribute that tells search engines the link is commercial. Pages that review or compare Koinly carry a disclosure at the top, before the content.

We follow the UK Advertising Standards Authority's guidance on affiliate marketing, which requires marketing communications to be obviously identifiable as such.

Where Koinly links appear

Only where they are relevant to you:

• on our Koinly review and crypto tax software comparison;
• in the calculator, when your import contains transactions we do not calculate — DeFi lending or liquidity pools, NFTs, margin or futures — or an exchange we do not support, or when your transaction count is beyond what our tool is designed for; and
• where we discuss wallet syncing, API imports or ongoing portfolio tracking, which our tool does not offer.

We do not put Koinly links on every page, and we do not show them to people whose needs our own tool meets.

What the commission does not change

Our verdicts. Koinly is a good product for complex crypto histories and we say so; it is also more than an exchange-only investor needs, and we say that too — including on the pages that carry the affiliate links. Where our own product is the better fit we recommend it, and where Recap or an accountant is the better fit we say that, even though we earn nothing from either.

Things we will never do

• Invent discount codes. We do not publish Koinly promo or discount codes. If Koinly offers a genuine promotion to our readers we will link to it and describe it accurately; otherwise, the price is the price on Koinly's site.
• Promote crypto exchanges or "buy crypto" offers. Promoting cryptoasset investments is a regulated financial promotion in the UK. We do not carry exchange referral links or investment promotions of any kind. Our only affiliate relationship is with tax software.
• Hide the relationship. Every affiliate link is labelled, and this page is linked from the footer of every page on the site.
• Claim HMRC endorsement of Koinly, of our own tool, or of any other software. HMRC does not approve crypto tax calculators.

Questions

If you think a link is not properly labelled, or you have any question about how we make money, contact us. We would rather fix it than have you wonder.