North Dakota Forms 1 through 10 are a set of state tax forms used by individuals and businesses to file their income taxes with the North Dakota Office of State Tax Commissioner. The forms include Form ND-1, which is the Individual Income Tax Return form; Form ND-1NPR, the Nonresident and Part-Year Resident Income Tax Return form; Form ND-2, the Estate Tax Return form; Form ND-3, the Corporation Income Tax Return form; Form ND-3EZ, the Corporation Income Tax Return for Small Businesses form; Form ND-4, the Fiduciary Income Tax Return form; Form ND-5, the Partnership Income Tax Return form; Form ND-5EZ, the Partnership Income Tax Return for Small Businesses form; Form ND-6, the S Corporation Income Tax Return form; and Form ND-6EZ, the S Corporation Income Tax Return for Small Businesses form.