Free 1040 Tax Return Validator

Check extracted 1040 data for errors. Validate income figures, verify the refund/owed math, and catch common transcription mistakes.

Enter 1040 Data

Fill in the fields below to validate your extracted tax return data

Taxpayer Name *

Taxpayer SSN

Tax Year

Filing Status

Wages / Salaries (Line 1a)

Total Income (Line 9)

Adjusted Gross Income (Line 11)

Taxable Income (Line 15)

Total Tax (Line 24)

Federal Tax Withheld (Line 25a)

Refund (Line 35a)

Amount Owed (Line 37)

Validation Results

Click "Validate 1040 Data" to see results

Enter your 1040 data above and click validate.

Skip manual data entry. Upload any 1040 PDF and get structured data in seconds.

How lenders and tax pros automate 1040 income extraction at scale.

About This Validator

Verifies that AGI does not exceed total income, and that taxable income does not exceed AGI, per standard 1040 math.

Compares withholding minus total tax against the refund or amount owed, flagging discrepancies that suggest extraction errors or missing credits.

All validation runs in your browser. Your tax data never leaves your device.