Start here if you have been told to submit DD Form 1921. First, know what you are filling: Cost Data Summary Report. The document is titled Cost Data Summary Report.
Next, check the edition. You want not stated, currently carried as not stated by the publisher. Then confirm the form applies to you — this is a Department of Defense form, so you use it whether you serve in the Army, Navy, Air Force, Marine Corps, Space Force or Coast Guard under Defense jurisdiction.
Once you know the form fits, find out when you file it. not stated sets the requirement, and not stated maintains the form itself. Your own command or agency adds local timing on top of that, so ask your administrative office if the deadline matters to you.
Finally, decide how you will complete it. You can type into a fillable file or print a blank and write by hand, and the rest of this page walks you through both paths in order.
Begin at the top and move down. Enter your identifying data first, then the body of the form, then the signature block. The sequence is printed in that order because entries below frequently follow from entries above.
Before your first entry, look at the corner of the page and compare the printed date with not stated. If they do not match, stop and download again. Old copies circulate in shared drives for years, and a DD form is revised centrally for every service at once, so a superseded blank may not carry the fields your reviewer expects.
If a particular field puzzles you, read the instructions printed on the form first, then go to not stated. When the two disagree, follow the directive.
Download the form
Begin by choosing a file. Available here: none published here. Plan for unknown pages and about unknown entries.
Take the pdf if you are unsure. Then check which kind you have: if the boxes highlight when you click them, you have a fillable pdf and can type straight into it, and your entries save with the file. If nothing highlights, you have a printable pdf — send it to a printer and use black ink.
Prefer typing over writing. Your form will likely be scanned and emailed onward, and typed text reproduces at every stage while pen strokes fade or blur. When you do write, print in capitals so the receiving clerk can read it.
Submit the completed form through the channel not stated or your local guidance specifies. Save a copy for yourself before it leaves your hands, whether that means a scan, a photograph or a duplicate file.
When DD Form 1921 references another form, search on the series and number. Because DD numbers are common to every military department, the number by itself identifies exactly one document.
Here is where people go wrong. They see a number in an instruction and download whichever form matches it. But DA and DD are separate systems — Army-specific in one case, Department-wide under not stated in the other — so check which series you were sent to before you take the file.
Plan to repeat this step whenever the form comes up again. Revisions follow directive changes, changes in what data is collected, and updates to notice language. Since nobody notifies you, check not stated at download and you have covered it.
Before you go, note what is not covered here. You have the blank form and instructions for completing it; you do not have legal guidance, and no statement on this page determines what any office will do with your submission. Direct those questions to not stated, to the personnel office that serves you, or to the office designated in not stated.
Questions and answers
- What is DD Form 1921?
- Cost Data Summary Report
- Which edition is current?
- Not stated by the publisher
- Who is responsible for this form?
- Not stated
- In which formats can it be downloaded?
- No file published here