Its on document check list. if u applying base on a marrigae.
marriage certificate and Documents referring to you and your spouse:
a. Tax returns, bank accounts, leases, mortgages, or birth certificates of
children; or
b. Internal Revenue Service (IRS)-certified copies of the income tax forms
that you both filed for the past 3 years; or
c. An IRS tax return transcript for the last 3 years.