Every way to track wash sales in 2026, compared honestly

By the Wash-Sale Guardian team · Published 2026-07-14 · Last updated 2026-07-14 · How we check our facts

Disclosure up front: we make one of the tools on this list (the free one), so read accordingly — every claim below is checkable. The market splits into three jobs: prevention (know your open 61-day windows before you re-buy), year-end reporting (produce a reconciled Form 8949), and cross-account visibility (see what no single broker can — the trap). No tool does all three perfectly; here's who does what.

Tool Price Cross-account? Account linking? Prevention (windows)? IRA trap detection?
Wash-Sale Guardian (ours) Free Yes — merges CSVs from any brokers No — runs in your browser, nothing uploaded Yes — open windows w/ safe dates Yes — flags permanent (Rev. Rul. 2008-5)
TradeLog ~$89–$379/yr Yes — multi-account imports No (file imports; optional direct-connect) No — year-end reporting focus Partial (reporting-time)
GainsKeeper (Wolters Kluwer) ~$50/mo tiers Yes Feeds/imports No — reporting focus Partial
Mezzi ~$299/yr Yes — via linked accounts Yes — Plaid/aggregator required Yes — near-real-time alerts Yes (linked accounts incl. IRAs)
Your broker's 1099-B Free No — same account only n/a No — arrives in February No — invisible on any 1099
GitHub scripts (open-source) Free Varies; DIY merging No Rarely Rarely
Spreadsheet Free If you build it No If you maintain it religiously If you remember the rule exists

How to choose

Prices and features checked 2026-07-14; corrections welcome via our corrections policy. Try the free row first: open the checker — export walkthroughs for Robinhood, Schwab, Fidelity, IBKR, and E*TRADE.

Frequently asked questions

What is the best free wash sale tracker?

For cross-account checking without handing over brokerage logins, Wash-Sale Guardian is free and runs in the browser (we build it, so verify us: the methodology is public). For single-account year-end reporting your broker’s own 1099-B is free and authoritative. Spreadsheets work for a handful of trades a year.

Does any tool track wash sales across brokers automatically?

Two approaches exist: account aggregation (Mezzi links accounts via Plaid and alerts in near-real-time) and CSV merging (Wash-Sale Guardian and TradeLog read broker exports). Aggregation is more automatic; CSV tools avoid sharing brokerage credentials. No broker-native tool sees other brokers.

Do I still need TradeLog if I use my broker’s 1099-B?

For one account with simple trades, usually not. Year-end tools like TradeLog earn their fee for high-volume traders with multiple accounts, options, or Section 475 needs — they produce reconciled 8949s. Prevention (knowing windows before you re-buy) is a different job than year-end reporting.