Federal — IRS Statement of Disagreement
More about the Federal Form 12509
We last updated Federal Form 12509 in January 2025 from the Federal Internal Revenue Service. This form is for income earned in tax year 2024, with tax returns due in April 2025. We will update this page with a new version of the form for 2026 as soon as it is made available by the Federal government.
Other Federal Other Forms:
In addition to information about Federal income tax brackets, Tax-Brackets.org provides a total of 775 Federal income tax forms, as well as many federal income tax forms. Here's a list of some of the most commonly used Federal tax forms:
| Form Code | Form Name |
|---|---|
| Form W-4V | Voluntary Withholding Request |
| Form W-4 | Employee's Withholding Allowance Certificate (Blank) |
| Form 940 | Employer's Annual Federal Unemployment (FUTA) Tax Return |
| Form 8840 | Closer Connection Exception Statement for Aliens |
| Form 8889 | Health Savings Accounts (HSAs) |
View all 775 Federal Income Tax Forms
Disclaimer: While we do our best to keep Form 12509 up to date and complete on Tax-Brackets.org, we cannot be held liable for errors or omissions. Is this form missing or out-of-date? Please let us know so we can fix it!
Tax Form Sources:
- Federal Internal Revenue Service ( http://www.irs.gov/
) - Internal Revenue Service Income Tax Forms ( https://www.irs.gov/forms-instructions-and-publications )