1099 Modifier -This tool allows you to change documents to 1099 documents if you have incorrectly set up your vendors, or if you forgot to mark the 1099 vendor option on your vendor card for a year or a portion of the year. After marking the option, you can run this tool, which will mark all documents for that vendor as 1099 documents. It will then reconcile these amounts into your summary records so they print on your 1099 reports.