Where do I sign my state tax return to mail in

[MichaelMc]

Without knowing which state you are filing in, that is a near impossible question to answer.

Generally, most state income tax returns mimic the federal Form 1040, in that the "main" form is a one or two page document, with other forms and schedules attached depending on your income deductions, tax credits, and particular circumstances. Your signature is usually required near the bottom of the first or second page of the state's "main" form.