Crypto 1099-DA Basis Validator

Reconcile your crypto cost basis against the new 1099-DA before filing.

Proceeds ($)

Reported basis on 1099-DA ($)

Your actual basis ($)

% short-term

Marginal ordinary rate (%)

LTCG rate (%)

Reported gain (1099-DA)

$50,000

Actual gain

$20,000

Reported tax owed

$16000

Actual tax owed

$6400

Likely overpayment

$9600

Verdict

Reconcile basis on Form 8949.

About this tool

Compute the tax you would overpay if you accepted a 1099-DA's missing cost basis, vs. your actual basis, and see the dollar overpayment. Direct answer to r/CryptoTax 'Don't Overpay: A CPA's Guide to Why Your 1099-DA Cost Basis is Missing.'

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