1040x amended tax return mailing address

The mailing address for an amended tax return (Form 1040X) depends on the state where you live. Here are the addresses for each state:

States that do not require a state-specific address:

States that require a state-specific address:

Note: If you're filing an amended return for a state that requires a state-specific address, you should also file a copy of the amended return with the state. You can find the state-specific address on the state's website or by contacting the state's tax authority.