Most types of forgery are categorized as class 4 felonies. A conviction could mean up to 15 years in prison plus 3 more years of probation.In Arizona, it's also a crime to make or possess forgery tools, with the intent to commt fraud or the intent to commit forgery. A.R.S. § 13-2002 defines Arizona's forgery law. A successful forgery prosecution in Arizona can subject you to a maximum of eight years and hefty fines. Whether it's forging checks, altering legal documents, or using counterfeit identification, being charged with forgery in Arizona can have severe consequences. The most commonly forged items are actually documentsespecially identity documents, like fake IDs.