Please note: This site contains six months of downloads. If you do not download within the six month timeframe and require an older version of the data, you will be required to purchase the file on a CD.

For your convenience, MD5 checksums for each file are listed below. These may be used to verify that you have successfully completed your download. In order to verify these checksums, you will need to obtain an MD5 sum generator. For your convenience, one is available through the Frequently Asked Questions (FAQs) page. If the MD5 sum generated by the program does not match the one for the corresponding file below, please retry your download.

Notice from Social Security Administration regarding Death Master File Update Schedule: Death Master File Monthly Updates should be available on the second U.S. Government business day of the month but can be delayed until the following U.S. Government business day.