Do I Amend my filed Tax return if W2c is issued ?

Whether you need to amend depends on what exactly the W-2c corrected. **If the W-2c only changes Box 3 (Social Security wages), Box 4 (Social Security tax withheld), Box 5 (Medicare wages), or Box 6 (Medicare tax):** Generally, you **do not** need to file an amended return (Form 1040-X). FICA taxes are not reported on your individual income tax return; they are handled between your employer and the SSA. The correction ensures your future Social Security benefits are calculated accurately. **If the W-2c also changes Box 1 (Wages, tips, other compensation) or Box 2 (Federal income tax withheld):** You **must** file an amended return. Changes to Box 1 affect your adjusted gross income and tax liability, while changes to Box 2 affect the total payments already credited to your account. **Special Case (Additional Medicare Tax):** If the correction puts your total wages over $200,000 (single) or $250,000 (joint), you may need to amend to file Form 8959. **Action:** Review the W-2c. If Box 1 and Box 2 are identical to your original W-2, no further action is typically required with the IRS.