TeresaM
Expert Alumni

After you file

Attach a copy of Forms W-2 or W-2G  to the front of Form 1040. Also attach Forms 1099-R if tax was withheld. 
 

Other tips for filing by mail:
 

  • Sign your return. Your federal tax return is not considered a valid return unless it is signed. If you are filing a joint return, your spouse must also sign. 
  • Provide a daytime phone number. This may help speed the processing of your return if the IRS has questions about items on your return.  
  • Assemble any schedules and forms behind your Form 1040/1040A
  • It is recommended to mail the return by a method that has tracking, so show when it arrives safely. 
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