Transaction Certificate UT-510 Iowa Department of Revenue and Finance is a document issued by the Iowa Department of Revenue and Finance to businesses that are registered in the state of Iowa. The certificate is used to establish the business’s tax liability status and to ensure it is up to date with its taxes. There are two types of Transaction Certificate UT-510: ‘Original’ and ‘Renewal’. The Original Transaction Certificate UT-510 is issued when a business is first established in the state of Iowa and is valid for one year. The Renewal Transaction Certificate UT-510 is issued annually thereafter to ensure that the business remains in compliance with its tax liability status. It is important that the business renews its Transaction Certificate UT-510 each year in order to remain in good standing with the Iowa Department of Revenue and Finance.