Everything GSA MAS contractors need to know about Transactional Data Reporting — field requirements, IFF calculation, SRP submission, and what changed in Refresh 31.
What TDR is, why it replaced the Price Reductions Clause, and what GSA does with the data. Covers the legislative authority, the OIG audit findings, and the data-quality problems (GSA OIG has reported that a substantial share of submitted TDR data has been unusable — the guide cites the current OIG report directly).
A field-by-field breakdown of all 16 TDR data elements — 12 required and 4 optional — for the Products and Services profiles. Includes accepted formats, common errors, and GSA's validation logic. SIN is Field #1. Note: Country of Origin is a TAA classification used by MAS Pilot for cross-checks, not a TDR field that GSA requires you to report.
The Industrial Funding Fee at the rate in effect (0.75% as of this guide's publication) — how to calculate it correctly, what counts as a qualifying MAS sale, and how to remit quarterly. Includes worked examples for common edge cases. Contractors remain responsible for applying the IFF rate GSA has in effect for the reporting period.
Step-by-step walkthrough of submitting to GSA's Sales Reporting Portal. File format requirements, the pipe-delimited template, common rejection codes, and what to do when SRP rejects your file.
Mass Mod A909 (Refresh 31) is the most significant MAS contract update in a decade. This chapter covers every change that affects TDR reporting, modification procedures, and pricing obligations.
Know these. Missing any of them has contract consequences.
TDR Guard checks every field, calculates your IFF for review, and produces a pipe-delimited SRP export for your certification and submission to GSA. Wave 3 is open now.
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