If you have an account with ISTAXES and need technical support, please log in to your account and submit your inquiries using the Support form located under the My Account menu.

If you have a tax question please contact the Internal Revenue Service at 1-800-829-1040 or a qualified tax professional. For your convenience we have posted a list with some of the best tax professionals specialized in nonresident taxation.

For general inquiries about our services please use our contact form. Do not submit tax questions using this contact form. ALL tax questions will simply be ignored.

If you are a school official interested in purchasing a tax software license, please use our contact form. We also recommend placing a link to ISTAXES as a tax resource for international students similar to these institutions.