1041 extension mailing address

The mailing address for the IRS Form 1041, U.S. Income Tax Return for Estates and Trusts, is:

Internal Revenue Service Attn: Form 1041 1111 Constitution Ave NW Washington, DC 20224-0002

You can also file your Form 1041 electronically through the IRS's Electronic Filing System (EFS) or through a tax preparation software provider.

Note: If you are filing a paper return, make sure to sign and date the return, and include all required attachments and schedules.