Refresh 31 made TDR mandatory for all MAS SINs — monthly reports are due 30 days after month-end. Request access →
Blog

GSA MAS compliance blog.

Plain-language coverage of what's changing in the GSA MAS program, why it matters, and what to do about it.

// New · Data report

The State of GSA TDR Data Quality in 2026

GSA's own Inspector General found 73% of FY25 TDR data unusable for price analysis — and 23 of 23 contracting officers had never used it in a negotiation. So why is it mandatory, and what does it mean for you? GSA may not read your data — but an IOA reads you.

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// Most important right now

What Refresh 31 Actually Changed

TDR is mandatory. Price-reduction tracking ends for TDR contracts. Mass Mod A909 has a 60-day clock. Here's what changed and what the deadlines are.

Read the full guide →
// What changed in Refresh 31
  • ✓TDR mandatory for every MAS SIN
  • ✓Price-reduction tracking ended for TDR contracts
  • ✓CSP-1 disclosures no longer required
  • ⚠Mass Mod A909 — 60-day window
  • ⚠Monthly reports due 30 days after month-end
// TDR Reporting

Is GSA's free SRP enough for TDR compliance?

The Sales Reporting Portal validates your file's format, rejects uploads that fail, and calculates the IFF due on what you report. It does not check whether those sales are right, TAA, minimum sales, or clause applicability. Exactly where the line sits, and what an Industrial Operations Analyst reads later.

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The full TDR guide — free.

Everything on Refresh 31, mandatory TDR, IFF, and thresholds. No form.

Read the guide →