Find the correct jurisdiction for any valid address in Iowa, as well as the proper tax rate for that jurisdiction using the online lookup.
Iowa does not use composite jurisdiction codes, but rather uses standard FIPS codes, with some special tax districts. These will be used by any Streamlined retailer using the SER (Simplified Electronic Return; see below). Model 4 filers who use the state’s traditional return will report jurisdictions at the county level.
County codes are also listed in the look-up.