Summ Review

Summ’s entry price is $49 a year for 100 transactions. That allowance covers the entire imported history, including earlier acquisitions, rather than resetting for each return. Ignored transactions and spam are excluded from the billed count. Dust (tiny leftover balances) still counts, even when hidden.

These are standard US dollar prices before promotions. In-app upgrades support higher allowances up to 200,000 transactions, with larger histories handled through support. An investor with many old acquisitions can need a higher tier despite making few trades this year. If you need recurring rules, the Trader requirement can raise the price even for a small history.

Reports extend back to 2013 during an active subscription. This makes Summ appealing for a backlog of returns because the number of reporting years does not itself increase the software bill.

Annual renewal keeps report access active. Cancel before renewal to stop the next annual charge. After a paid-up period is canceled, paid features remain available until that period ends, then reports become unavailable. If renewal has already occurred and payment failed, cancellation stops the following renewal but does not stop collection for the unpaid renewed period; contact support about that period.

After the paid period ends, imported history and integrations remain viewable on the Accounts and Transactions pages. Taking a refund can delete your imported data. The terms exclude change-of-mind refunds, subject to consumer rights and stated exceptions, so inspect and correct the history in the free account before committing.

Summ supports exchange application programming interfaces (APIs), authorized account connections, public wallet addresses, and files. A custom comma-separated values (CSV) template covers missing transactions or sources without a dedicated importer. If an exchange retires its API, as Coinbase Pro did, later records have to come through another import route.

If a file leaves the quote amount blank, Summ can fill in a market value that differs from what you paid or received. Check that value in the transaction detail.

Summ’s custom CSV format treats quote amounts as excluding fees, making fee mapping important before you import. In a purchase-and-sale check, a $1,500 sale with a separate $40 fee imported as $1,540 gross sale value and $1,500 received. This check used the US profile, US dollars, tax year 2025, first-in, first-out (FIFO) accounting, and tracking by wallet and exchange.

The unresolved mismatch concerned the combined display. It did not demonstrate a tax-calculation error. If that view disagrees with your account balances, check each account’s records.

A sale using an assumed zero cost can look much more profitable than it was. Summ flags the transaction with missing purchase history, giving the investor a place to start investigating.

Summ’s general engine guide describes migration from a chosen date, with adjustment records where balances differ and protection for locked periods. The self-service switch has country limits: the US has its own engine version, and the general switch setting excludes US, UK, and Canadian accounts. Confirm the migration options for your US account with support before changing engines.

Summ has specific categories for decentralized finance (DeFi) activity such as liquidity positions, staking, and loans, as well as non-fungible tokens (NFTs). The liquidity and staking categories separate an original position from the rewards or receipt tokens created around it. Hobbyist is the starting paid tier for reporting smart-contract activity.

Until you withdraw from a liquidity pool, Summ values the receipt token at the deposit value. The dashboard can therefore misstate an open position’s current worth even when every deposit record is present.

Summ provides Form 8949 (standard and consolidated), Schedule D, and Schedule 1. When a correction to an old acquisition affects later disposals, the relevant years can be regenerated within the same active subscription.

TurboTax Online can reject an uploaded PDF or flag entries for review. Summ supplies an Alternate PDF and guidance for those cases, but getting the figures into TurboTax can take more than one attempt. Summ’s instructions for tax year 2025 cover TurboTax Online and do not describe an equivalent Desktop route.

The 1099-DA portal compares the exchange’s proceeds with Summ’s transaction records. Uploading a statement alone does not change the report. Changes require confirmation, either per transaction or across the matched records. Cost basis still comes from the imported history, so if an acquisition happened elsewhere, its purchase records are needed to calculate the gain on a later exchange sale.

Automatic statement matching is available only for supported exchanges. Other listed exchanges can still use the Disposal Summary for manual review and adjustment. Summ prepares the crypto files, with the remainder of the return completed in filing software or by an accountant.

Summ’s exchange connections use read-only access. Its wallet imports do not require private keys. Its security page states that API keys are encrypted in transit and at rest and describes System and Organization Controls (SOC) 2 Type 2 certification. You can turn on two-factor authentication after verifying your email.

Summ permits up to 10 saved backups, including automatic snapshots taken before restoration. Each safety snapshot needs a free slot, so you must delete an older backup before restoring when all 10 slots are full. Restoring an account whose API connection was deleted also requires reconnecting it before the next sync.

CTC Ledger Pty Ltd operates Summ. Summ’s privacy policy allows personal information to be processed with AI tools but bars its AI providers from training language models on it.

Third-party tools that you connect to your Summ account follow their own policies and only get the permissions you grant. If you give a tool permission to make changes, it can edit your Summ data. Disconnecting stops future access, but Summ cannot retrieve or delete information the tool already received.

Summ’s help center covers individual warnings and correction workflows. Paid-plan support uses email and in-app chat for product assistance, while professional tax advice and an accountant’s cleanup work are arranged separately.

Once connected, they can correct the records directly in Summ rather than only exchange finished PDFs. Comments on transactions and comment filters help both sides locate the records under discussion.

If you choose My imported data, you keep access to the records after revoking your accountant’s access. With Accountant data, the working records stay with the accountant and you lose access. The two data sets cannot be moved between sides.

A client who has already assembled and corrected the history can keep those records by sharing My imported data for review. If most of the cleanup will happen in Accountant data, get the finished reports from your accountant before access ends.