Forging a spouse's signature is a crime. Don't think because it is your spouse it is alright to do. It is illegal to forge any one's signature. There are penalties for forgery which consist of jail time, fines or both. Forgery is considered to be a class B felony. To read about forgery visit: http://apps.leg.wa.gov/rcw/default.aspx?cite=65.12.760
