Koinly vs ChainTax

Koinly is a broad, multi-country crypto tax platform. ChainTax is a narrower UK-only product. The useful comparison is integration breadth and workflow, not a claim that either tool wins every transaction.

Competitor facts last checked 14 July 2026. Sources are linked below.

Broadest reach

Koinly

Better suited to users who need many direct integrations, non-EVM chains or multi-country reporting.

UK-only workflow

ChainTax

Focused on SA108 output, supported EVM DeFi and per-disposal HMRC working.

UK pooling

Both support it

Both products document UK share pooling with same-day and 30-day matching.

Published capabilities

A factual side-by-side

This table compares documented product behaviour. It does not claim that one engine is universally more accurate than another.

Feature	Koinly	ChainTax
Exchange and wallet imports	API and CSV imports across a broad range of exchanges, wallets and chains, including EVM networks, Solana and Cardano.	Native exchange CSVs: Coinbase, Binance and Kraken; Crypto.com App (beta). Also accepts Koinly universal CSV (compatible format). Read-only wallet sync covers five EVM chains.
UK cost basis	Supports UK Share Pooling. Koinly says it applies recommended settings from the selected home country and supports same-day and 30-day matching.	Section 104 is the only cost-basis method. Same-day and 30-day matching run before the pool automatically.
Transfers and bridges	Automatically matches qualifying own-wallet transfers. Same-asset bridges can match automatically; different-token bridge legs may need manual handling.	Supported bridge protocols are classified from their contract activity. Ambiguous or unsupported interactions remain visible for review.
DeFi and NFT activity	Advertises DeFi and NFT support, rules, tags and review tools across its wider integration set.	34 deterministic classifiers cover supported EVM protocols. Unrecognised activity is not silently treated as resolved.
Calculation detail	Paid plans include cost analysis and a comprehensive audit report. Transaction details can show the market-price source used.	Show Working exposes the matching rule, pool before and after, cost basis, proceeds, price source and confidence on each disposal.
UK filing output	Provides specialised UK and international tax reports. The cited public pages do not describe ChainTax-style SA108 box mapping or the 2024/25 Box 51 calculation, so verify those requirements in product.	Produces an SA108-oriented report with boxes 13.1 to 13.8 and the 2024/25 split-year Box 51 calculation.
Accountant workflow	Offers accountant accounts that can manage multiple client portfolios.	Provides revocable, read-only report links. It does not currently offer a multi-client accountant portal.
Billing	One plan is purchased for each tax year that needs a downloadable report. Koinly says these are not auto-renewing subscriptions.	One-time payment per tax year, with no subscription. Current self-serve plans are £49 and £99.

Exchange and wallet imports

Koinly: API and CSV imports across a broad range of exchanges, wallets and chains, including EVM networks, Solana and Cardano.
ChainTax: Native exchange CSVs: Coinbase, Binance and Kraken; Crypto.com App (beta). Also accepts Koinly universal CSV (compatible format). Read-only wallet sync covers five EVM chains.

UK cost basis

Koinly: Supports UK Share Pooling. Koinly says it applies recommended settings from the selected home country and supports same-day and 30-day matching.
ChainTax: Section 104 is the only cost-basis method. Same-day and 30-day matching run before the pool automatically.

Transfers and bridges

Koinly: Automatically matches qualifying own-wallet transfers. Same-asset bridges can match automatically; different-token bridge legs may need manual handling.
ChainTax: Supported bridge protocols are classified from their contract activity. Ambiguous or unsupported interactions remain visible for review.

DeFi and NFT activity

Koinly: Advertises DeFi and NFT support, rules, tags and review tools across its wider integration set.
ChainTax: 34 deterministic classifiers cover supported EVM protocols. Unrecognised activity is not silently treated as resolved.

Calculation detail

Koinly: Paid plans include cost analysis and a comprehensive audit report. Transaction details can show the market-price source used.
ChainTax: Show Working exposes the matching rule, pool before and after, cost basis, proceeds, price source and confidence on each disposal.

UK filing output

Koinly: Provides specialised UK and international tax reports. The cited public pages do not describe ChainTax-style SA108 box mapping or the 2024/25 Box 51 calculation, so verify those requirements in product.
ChainTax: Produces an SA108-oriented report with boxes 13.1 to 13.8 and the 2024/25 split-year Box 51 calculation.

Accountant workflow

Koinly: Offers accountant accounts that can manage multiple client portfolios.
ChainTax: Provides revocable, read-only report links. It does not currently offer a multi-client accountant portal.

Billing

Koinly: One plan is purchased for each tax year that needs a downloadable report. Koinly says these are not auto-renewing subscriptions.
ChainTax: One-time payment per tax year, with no subscription. Current self-serve plans are £49 and £99.

Pricing model

Compare what the payment unlocks

Free use

Koinly:Up to 10,000 transactions; gains preview; no report download

ChainTax:Up to 200 transaction records account-wide; classifications, review checks, and report-structure preview; no download

Entry report

Koinly:Newbie: $49 per tax year, up to 100 transactions

ChainTax:Light: £49 report access for one tax year; account-wide capacity up to 2,500 transaction records

Mid-volume report

Koinly:Hodler: $99 per tax year, up to 1,000 transactions

ChainTax:Active: £99 report access for one tax year; account-wide capacity up to 10,000 transaction records

Higher volume

Koinly:Trader starts at $199 for 3,000+ transactions; extra capacity is available

ChainTax:Above 10,000 account-wide transaction records is quote-first concierge work

Renewal model

Koinly:No automatic annual subscription; buy the tax years you need

ChainTax:No automatic annual subscription; buy the tax years you need

Prices and plan rules change. Check the linked provider source before purchasing.

Choose Koinly when...

You want direct API integrations across a much wider exchange and chain set.
You need reports for more than one country.
Your accountant wants a multi-client Koinly workspace.

Choose ChainTax when...

You file only with HMRC and want an SA108-oriented workflow.
Your supported EVM DeFi activity benefits from protocol-specific classification and a visible review queue.
You want the matching rule and Section 104 pool movement shown on each disposal.

Sources and review date

Check the underlying documentation

Competitor statements were checked against these first-party pages on 14 July 2026. Where a capability is not described there, this page says so instead of treating absence from public documentation as proof that it does not exist.

Common questions

Does Koinly support HMRC Share Pooling?

Yes. Koinly documents UK Share Pooling and the UK same-day and 30-day matching rules. The old claim that it simply applies US FIFO to UK users was inaccurate and has been removed.

Does Koinly treat every bridge as taxable?

No. Koinly says same-asset bridges can be matched as transfers. Different-token bridge legs may require manual handling. ChainTax also has review cases outside its supported protocol coverage.

Can I move from Koinly to ChainTax?

Yes. ChainTax accepts a Koinly CSV. On-chain hashes are re-fetched where possible, while centralised-exchange rows are imported into the same tax-year calculation.

Which product is the better fit?

Koinly is the stronger fit when you need broad integrations, multiple countries or an accountant portfolio. ChainTax is narrower and UK-only, with an SA108-oriented report and its own per-disposal Show Working view.

Test ChainTax on your own history

Import up to 200 transaction records free account-wide, inspect the working and review checks, then compare the workflow before paying.

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