The grace period ends 31 December 2026
TDR became mandatory across all MAS SINs on 1 July 2026. GSA is not enforcing during a grace period that runs to 31 December 2026. From 1 January 2027 it does.
What changes on 1 January 2027
Nothing about the requirement itself — the clause, the format and the 30-day deadline are the same before and after. What changes is what happens when a month is missing. During the grace period a gap is a gap. After it, it is a compliance record your Contracting Officer acts on, and the instruments are option exercise and contract continuation rather than a fine.
What to do before then
- Check which months since July 2026 you have actually filed. The first report was due 30 August 2026.
- File the gaps, including any month with no sales.
- Set up whatever produces the file so it is not rebuilt by hand each month.
- Keep a record of what was filed when.
Back-filing during the grace period is a much smaller conversation than back-filing after it. That is the whole argument for doing this before the year ends.
What it does not mean
It is not a deadline extension, and it is not an amnesty that has been announced as one. The reports are owed for every month from July 2026 onward regardless.
What ends is the tolerance, not the obligation: Transactional Data Reporting has applied since 1 July 2026, and every due date between now and then is already fixed.
Check your own file. Upload an invoice, order or service export. You get every error and the finished official file, free and without an account.
Open the free validatorFree solves this file. $79/month reuses the saved setup for recurring report files and keeps the record together.
Dates as we read GSA's published solicitation refresh and guidance, checked 16 August 2026. Confirm against your own contract and your Contracting Officer.