For tax year 2026; guides about 2025 forms are marked 2025Facts checked: This is not tax advice. Read the disclaimer.

Form 1099-DA Guides: Read It, Fix It, File It

Twenty-five guides on Form 1099-DA: reading the statement, fixing missing cost basis, filing on Form 8949, taxing staking income, and answering IRS letters.

Form 1099-DA

Reads their own 1099-DA line by line, knows which parts the broker vouches for and which it does not, and knows what is missing from it

Cost Basis & Reconciliation

Fixes a blank or wrong basis with documentation, chooses and applies a lot method, and files numbers that differ from the form without inviting a notice

Filing Crypto Taxes

Fills in 8949 and Schedule D from their reconciled figures, knows which rate applies to each sale, and answers the 1040 question correctly

Staking, Airdrops & DeFi

Identifies every taxable income event in their year, values it on the right date and knows where on the return it goes

IRS Notices & Corrections

Answers a notice with the right documents, corrects earlier years before the IRS matches them, and avoids backup withholding