What withholding permit number do I use to file?

The Department will accept both the 12-digit permit number and 9-digit permit number when filing withholding returns, W-2s, and 1099s. 

All permits issued after November 15, 2021 will have a 9-digit number. The Department recommends using the 9-digit number when possible. 12-digit numbers were assigned to permits issued before November 15, 2021. As part of the Department's efforts to modernize technology, new 9-digit permit numbers were assigned as accounts were migrated into GovConnectIowa.