What documents does a letter LTR 12C want when it says any supporting documents verifying income and withholding?

smsmithz · ‎January 30, 2026

LindaS5247 · ‎February 1, 2026

IRS Letter 12C generally requires documentation that verifies your income and federal tax withholding to process your tax return, most commonly W-2s, 1099s, and Form 8962/1095-A (if claiming health insurance credits).

Copies of pay stubs, bank statements, or other forms that directly support the income amounts reported on your tax return should be included when responding to a Letter 12-C.

Click here for I got a 12C letter from the IRS (Form 8962).

Click here for Understanding your Letter 12C

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xmasbaby0 · ‎January 30, 2026

https://www.irs.gov/individuals/understanding-your-letter-12c

Do you have copies of your W-2's? Any 1099's showing income and/or tax withheld?

**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**

LindaS5247 · ‎February 1, 2026

IRS Letter 12C generally requires documentation that verifies your income and federal tax withholding to process your tax return, most commonly W-2s, 1099s, and Form 8962/1095-A (if claiming health insurance credits).

Copies of pay stubs, bank statements, or other forms that directly support the income amounts reported on your tax return should be included when responding to a Letter 12-C.

Click here for I got a 12C letter from the IRS (Form 8962).

Click here for Understanding your Letter 12C

Please return to Community if you have any additional information or questions and we would be happy to help.

**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"

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What documents does a letter LTR 12C want when it says any supporting documents verifying income and withholding?