Leave the space blank, try to ignore the error if the program will let you. You have to print your return and file it by mail. Write “NRA” in the space for your spouses tax number. The address will depend on what state you live in; when you print your return, there will be a cover page with instructions including the correct mailing address and what documents you need to attach to the printed return. Don’t forget that you will also have to print and mail your state tax return since you can’t e-file your state return unless you also e-file your federal return.
