Published verdictRanking snapshot 3 November 2026
Summ (formerly Crypto Tax Calculator) leads by 11 points
Summ (formerly Crypto Tax Calculator) scores 11 points above TokenTax, led by your tax form, cost-basis method, and complex transactions.
SUSumm (formerly Crypto Tax Calculator) #5 of 1177
TokenTax #10 of 1166Why, term by termSumm (formerly Crypto Tax Calculator) leads on 3 of 4 published criteria; TokenTax on 1. The terms sum to the gap.
TermSumm (formerly Crypto Tax Calculator)TokenTaxWeightPoints
Your tax form8/105/107.7+6.0for Summ (formerly Crypto Tax Calculator)+3.1 of 32
Cost-basis method8/106/106.2+3.2for Summ (formerly Crypto Tax Calculator)+1.7 of 32
Complex transactions9/106/105.3+4.1for Summ (formerly Crypto Tax Calculator)+2.1 of 32
Record portability4/106/104.8−2.5for TokenTax−1.3 of 32
Net of the terms+10.9
Criteria roundingThe criteria block is rounded to whole points before it is spread+0.1
Reproduced gap+10.9
Published gapAfter score rounding and bounds — see the note below7766+11.0
Weight is in points of the 86-point weighted total. Points are score points of the gap between the two.
Summ (formerly Crypto Tax Calculator)Score 77Produces real IRS Form 8949 / Schedule D / Schedule 1 PDFs autofilled with the filer's SSN, publishes a per-jurisdiction binding-method table with a documented Rev. Proc. 2024-28 migration, and documents all six awkward cases with product mechanisms — then rents the whole record back to you, because the terms grant access 'only for the duration that you continue to pay' and the only documented backup route itself requires an active subscription.Strength: Awkward case treatment — 9/10Watch-out: Three compounding surprises, all landing after the card is charged. (1) YOUR REPORTS ARE RENTED — THOUGH YOUR DATA IS NOT DELETED. Terms clause 5.2: "For recurring services, we grant you and your Authorised Users a right to access the relevant Services only for the duration that you continue to pay for the Service, subject to these Terms." The cancellation article is blunter: "Once your subscription expires, you will lose access to any paid features, including tax reports." Read the whole article, though, because the same page also says: "The data and integrations you have imported are retained and can still be reviewed on the Accounts and Transactions pages unless a refund is issued, which may result in their deletion." So the history stays visible; what dies is the ability to REGENERATE the filed report and to EXPORT anything. The documented escape hatch does not survive either: "Currently, the only way to back up your data in Summ (formerly Crypto Tax Calculator) is by exporting your Transaction report. This ensures you have a copy of your raw data outside the platform.", which requires an active subscription ("An active subscription is required to download reports for all years.") and whose nine columns carry no cost basis. Stop paying in year three and the 2025 return you already filed cannot be regenerated to defend an audit — even though you can still look at the transactions behind it. (2) AT $49 AND $99 YOU CANNOT CHANGE THE INVENTORY METHOD. The pricing page, fetched 2026-09-29, no longer names inventory methods by tier (the features that start at Investor ($249) are "Tax minimisation algorithm", "Tax loss harvesting", "Advanced reports" and "Audit report"), but the vendor's own pricing help article states the gate: "Additionally, tools like the Tax Loss Harvesting Tool, advanced inventory methods, and advanced reports are only available on Investor and Trader Plans." The US default is Highest In First Out, so a US filer on Rookie or Hobbyist is locked into HIFO — a method that materially changes the tax owed — and the fix costs $200 more rather than a settings click. (3) UK FILERS WITH DEFI FACE A ONE-WAY DOOR: "Please note that, currently, the Bridge and Swap categories are not supported if you choose HM Revenue and Customs as your inventory method. If you use other inventory methods (e.g., First In First Out or Average Cost), you can use these categories but will not be able to switch back to HM Revenue and Customs." The method that actually binds under UK law is unavailable to anyone who has bridged or swapped, and leaving it is irreversible. Worse, the escape is paywalled: "In Summ (formerly Crypto Tax Calculator), we provide three inventory methods if your country setting is the UK. The HM Revenue and Customs method is available for all paid subscriptions. We also provide the First In First Out and Average Cost inventory methods for users on the Investor and Trader plans." — so a UK filer on Rookie ($49) or Hobbyist ($99) has HMRC as their only method and therefore cannot use the Bridge or Swap categories at all. Lesser but real: the pricing page, fetched 2026-09-29, no longer lists smart contract transactions by tier, but the vendor's help centre puts them above the $49 tier: "Certain features, such as smart contract transactions, require a subscription to the Hobbyist Plan or higher."TokenTaxScore 66A US Form 8949 factory with a genuine per-account (2025) basis engine and a real TurboTax handoff, wrapped around an accounting firm — but outside the US it emits an unnamed "relevant international report" the filer transcribes by hand, and the open-lot basis that report rests on cannot be exported. UPHELD verbatim: every clause of it was traced to a character-exact quote on a served page loaded 2026-08-19.Strength: Basis method fidelity — 6/10Watch-out: UPHELD, with one item added and one quote re-sourced. That the plan you bought does not produce the thing the marketing page sold, and that the real work costs more. (1) /features advertises "Form 8949, Schedule D" AND "International forms" under "Our software automatically generates every tax form you need to complete your filings—whether you file with us or a different provider, such as TurboTax.", but the help centre states "Includes information that TokenTax does not have access to for crypto-only clients. TokenTax is unable to generate this form unless we are handling your full tax return. Your tax preparer is responsible for your Schedule D." — and no page anywhere names a single international form. (2) Outside the US there is no form at all — every tier promises only an "IRS Form 8949 or relevant international report", and TokenTax's own Sweden guide tells the filer to "Log in to Skatteverket, open form K4 (D). List each disposal’s cost basis, proceeds, and result" by hand. (3) Buying the cheap tier and then importing your full history to establish basis silently burns your cap: "Import the complete historical data needed to establish accurate cost basis. Your plan's transaction allowance still applies; importing historical data does not make the plan's transaction limit unlimited." (4) Surcharges land after purchase and are published only inside the help centre, never on /pricing: "Margin Processing: This service is $399 and includes processing of margins, derivatives, and futures data.", "It is available for purchase for $49 for Basic Plan or Premium Plan holders." for FBAR, and full filing "starting at $999". (5) Even the $3,499 VIP plan is chain-limited — "At the moment, the VIP Plans include support for Layer 1 Ethereum, Polygon, and Binance Smart Chain transactions. Our engineers are continually adding support for new chains, but in the meantime, other chains may require additional fees." — and one-shot: "Additionally, we will only complete your reconciliation one time for each plan purchased. If we complete the services included in your account's plan but you later discover that you omitted some transaction data, we may ask you to purchase an additional plan." (6) None of it is refundable, and there is nothing to try first: "TokenTax does not offer refunds." (https://tokentax.co/terms), expanded in the help centre as "At TokenTax, we have a no refund policy." (https://help.tokentax.co/en/articles/1800908-can-i-get-a-refund, October 25, 2021) — while "At this time, we do not offer free trials, demos, or preview functions." (https://help.tokentax.co/en/articles/5803735-does-tokentax-offer-any-demos-or-trials, January 23, 2024). You buy blind and you cannot unwind it. (7) ADDED — three served pages disagree on who may buy the $999 full-filing add-on: the UI guide says "This service is only available for U.S.-based clients with a VIP Plan or above." and the VIP article says Full-Filing services "are available to purchase, as an add-on to our VIP Plan, or above, only.", but the plan-chooser, timestamped "Updated today", says "Full filing by TokenTax is a separate add-on available to customers who purchase any crypto tax plan; it is not included automatically and is not limited to VIP customers." and /pricing says only "This add-on is only available to customers who purchase a crypto tax plan." A Basic buyer reading the newest page believes a service two older pages gate behind $3,499 is available to them.