GSA's MAS Refresh 31 eliminated the Most Favored Customer (MFC) pricing requirement and the Price Reduction Clause (PRC) for all Schedule SINs now subject to Transactional Data Reporting (TDR). There is no Commercial Sales Practices (CSP-1) disclosure, no Basis of Award (BOA) customer to track, and no automatic price reduction trigger if your commercial pricing drops. TDR uses actual transaction data — monthly sales reporting — to monitor your pricing instead. Compliance enforcement begins January 1, 2027.
I spent eighteen years in federal acquisition as a Contracting Specialist and Contracting Officer at GSA, IRS, DoD, and DOI. I have reviewed hundreds of GSA Schedule pricing proposals and negotiated dozens of price modifications. The shift from MFC/PRC to TDR is the most fundamental change to MAS pricing mechanics since the original Schedule program was restructured. Most contractors have not caught up — and the ones who get this wrong will hand their Contracting Officers a compliance problem in 2027.
What were the Most Favored Customer rule and the Price Reduction Clause?
Under the pre-TDR model, every MAS contractor had to identify a specific commercial customer (the Basis of Award customer) who received the most favorable pricing. If your commercial pricing to that customer dropped below your Schedule price, the PRC automatically required you to lower your GSA price to match — or face a contract violation.
The Commercial Sales Practices form (CSP-1) forced you to disclose your pricing practices across customer categories, identify your BOA customer, and explain how your Schedule price compared. This created a continuous monitoring obligation: if you discounted off-contract to your BOA customer at a rate below your MAS pricing, you owed the government the difference.
From the CO seat, deficiency requests related to CSP-1 completeness and BOA tracking consumed enormous administrative time on both sides. Contractors frequently received deficiency notices not because their pricing was wrong, but because their CSP-1 narratives were incomplete or their commercial pricing records did not clearly tie back to the disclosed BOA customer.
What did Refresh 31 actually change about GSA pricing?
Refresh 31 transitioned all standard MAS SINs to TDR and, in doing so, eliminated MFC/PRC monitoring for those SINs. The three operational changes are: no CSP-1 disclosure requirement, no BOA customer designation, and no PRC automatic price-reduction trigger.
In their place, GSA now uses the actual prices you charge the government each month — reported through TDR — to monitor market pricing. GSA analyzes that transaction-level data across all reporting contractors to understand what agencies are actually paying, then uses that intelligence during negotiations with new on-ramping contractors and during periodic price reviews with existing holders.
| Pricing Element | Pre-TDR (MFC/PRC Model) | Post-TDR (Refresh 31+) |
|---|---|---|
| Pricing disclosure | CSP-1 form required, full commercial pricing narrative | No CSP-1 disclosure |
| Basis of Award customer | Specific BOA customer identified and tracked | No BOA customer requirement |
| Automatic price reduction | PRC triggered if commercial price to BOA dropped below GSA price | No automatic PRC trigger |
| GSA pricing oversight | CO monitors commercial discounts against BOA customer | GSA analyzes monthly transaction data across all TDR reporters |
| Price negotiation basis | Commercial discount off disclosed price list | Actual prices-paid data from TDR reports |
Which GSA Schedule SINs are subject to TDR and which are not?
All standard MAS SINs have been transitioned to TDR through successive Refreshes. VA Schedules are administered independently from GSA and are NOT subject to TDR — VA Schedule contractors still operate under traditional CSP and PRC monitoring.
This distinction matters. I see it overlooked regularly in GovCon content: "GSA Schedule TDR" is often discussed as if it applies universally to all federal schedule vehicles. It does not. If your contract sits under a VA schedule — Schedule 65 (Pharmaceutical), Schedule 621 (Professional and Allied Healthcare), or another VA-administered vehicle — the MFC/PRC rules from before TDR still apply to you.
- Covered by TDR: All MAS SINs on GSA-administered schedules (MAS Refresh 31 and subsequent)
- Not covered by TDR: VA-administered schedules (Schedules 65, 621, and other VA vehicles)
- Separate treatment: Certain SINs with unique pricing mechanisms may have specific TDR guidance — check your contract's mass modification language or contact your assigned PCO
When does TDR compliance enforcement actually begin?
TDR reporting began for the period starting July 1, 2026. GSA is running a practice-reporting phase through December 31, 2026, where contractors submit data and receive soft flags for discrepancies. Hard compliance enforcement — where your Contracting Officer can act on reporting failures — begins for the period starting January 1, 2027.
Do not mistake "practice phase" for "optional phase." I have seen contractors treat every compliance grace period in federal contracting as a signal to wait. That is exactly wrong here. Every month of TDR data you submit between now and December is a month of pricing behavior your CO will have on record when January 2027 arrives. Use the soft flags to find and fix data quality issues now.
- July 1, 2026: TDR reporting period begins — all covered SINs must submit monthly
- July – December 2026: Practice-reporting phase; soft flags issued, no enforcement action
- January 1, 2027: Full enforcement begins; COs can issue cure notices and initiate cancellation for non-compliance
- Reporting system: Federal Acquisition Service (FAS) portal — confirm your reporting access with your assigned PCO now if you have not already
What does TDR reporting actually require you to submit each month?
TDR requires you to report transaction-level data on every sale made against your GSA Schedule contract. Each report covers the ordering period's end-user agency, the SIN, the CLIN or labor category sold, the quantity, and the unit price actually charged — not your catalog price, the price you actually invoiced.
When I was reviewing pricing modifications as a Contracting Specialist at GSA, the thing contractors consistently underestimated was the difference between catalog price and transaction price. Under the old CSP-1 model, GSA reviewed your price list. Under TDR, GSA sees what agencies are actually paying. That is a fundamentally different level of transparency — and it means price padding between your catalog and your actual invoices will surface in the data.
Required TDR fields per transaction:
- Contract number — your MAS contract identifier
- SIN — the Special Item Number under which the sale occurred
- CLIN/labor category — specific deliverable or labor category sold
- Unit price charged — actual invoiced price, not catalog price
- Quantity
- Ordering agency — the end-user agency, not a pass-through
- Order date and period of performance
How will GSA use TDR data against your contract going forward?
GSA will use aggregate TDR pricing data to benchmark your pricing against market rates during option-period renewals, mass modifications, and economic price adjustment (EPA) reviews. If your transaction prices run consistently above market — as revealed by the cross-contractor TDR dataset — expect a pricing negotiation, not just a notice.
Across 70+ GSA Schedule awards I have supported at Blackfyre, the contractors who manage this well track a simple metric: the spread between their catalog price and their actual average transaction price on government orders. If that spread is large, GSA's TDR analysis will flag it. The corrective pressure will come through your CO in the form of a pricing review request — and if it happens at option-period renewal, your entire option is at risk until resolution.
What should you do right now if your contract is subject to TDR?
Three actions before August 2026: confirm your reporting access in the FAS portal, submit your first TDR report for the July period, and reconcile your catalog pricing with your actual average transaction prices to identify any spread that will draw CO attention in 2027.
- Verify FAS portal access — contact your PCO or check GSA's TDR reporting page at gsa.gov/TDR
- Submit July data by the deadline — reports for the July period are due in August; confirm the exact due date with your PCO
- Audit your pricing spread — compare your catalog prices to your actual government invoices for the past 12 months
- Document every $0 or no-cost transaction — free trials, pilots, and partner arrangements must be reported correctly or flagged as exceptions
- Remove any CSP-1 language from your marketing materials — if you are still describing your contract in terms of MFC pricing or PRC compliance, that description is now wrong
What Is the Bottom Line?
- MFC tracking and the Price Reduction Clause no longer apply to GSA MAS SINs subject to TDR — the monitoring mechanism has been replaced entirely
- TDR reporting began July 1, 2026; compliance enforcement begins January 1, 2027
- VA Schedule contractors are not affected — those vehicles still use CSP/PRC monitoring
- GSA will use cross-contractor TDR data to benchmark pricing at renewals and mods — track your spread between catalog and actual transaction prices now
- The practice-reporting phase runs through December 31, 2026 — use it to fix data quality issues, not to delay reporting
- If your contract is still referencing a BOA customer or MFC commitments, those clauses were superseded by mass mod; confirm with your PCO what language currently governs your contract
If you want a second set of eyes on your TDR readiness or your catalog pricing before enforcement begins, Blackfyre works with GSA Schedule holders on compliance reviews and pricing strategy — from a team that includes a former GSA Contracting Officer and Contracting Specialist who sat on the other side of these negotiations.
Frequently Asked Questions
Does TDR replace the Price Reduction Clause entirely?
Yes, for all MAS SINs transitioned to TDR under Refresh 31 and subsequent refreshes. The PRC clause (formerly GSAR 552.238-81) no longer applies to those SINs. GSA uses TDR transaction data instead of BOA-customer tracking to monitor pricing. Confirm your contract's specific clause status with your PCO if you are uncertain whether your SIN has been transitioned.
Do I still need to file a CSP-1 form?
No. The Commercial Sales Practices disclosure (CSP-1) is not required for TDR-covered SINs. You no longer need to disclose your commercial customer pricing categories, identify a BOA customer, or explain your commercial discounting practices in a narrative format. That disclosure obligation was replaced by the monthly transaction-level reporting under TDR.
What happens if I miss a TDR reporting month during the practice phase?
During the practice phase (July – December 2026), GSA is issuing soft flags for discrepancies and non-submissions rather than formal enforcement actions. However, a pattern of non-reporting will be on record when January 2027 arrives. Your CO can reference that history when initiating enforcement. Do not treat the practice phase as optional — submit every month.
Are VA Schedule contractors subject to TDR?
No. VA-administered schedules operate independently from GSA and are not subject to TDR requirements. VA Schedule contracts continue to use traditional CSP disclosure and Price Reduction Clause monitoring. If you hold both a GSA MAS contract and a VA Schedule contract, different pricing rules apply to each. Confirm your obligations separately for each contract.
How will my GSA Contracting Officer use TDR data against my pricing?
Your CO and GSA's pricing analysts will compare your monthly transaction prices against aggregate market data from all TDR reporters in your SIN category. At option-period renewals and price modification reviews, COs use this data to assess whether your catalog pricing reflects actual market rates. A large spread between your listed catalog price and your average transaction price is a common trigger for a pricing review request. GSA has published its TDR analysis methodology at gsa.gov/TDR.
My company sells at different prices to different agencies. How do I handle TDR reporting?
Report each transaction at the actual price charged to that specific agency. TDR is designed to capture price variation — the system expects to see different agencies paying different prices based on order size, delivery terms, or negotiated task order rates. Do not average prices across transactions. Report each order at the unit price on that specific invoice or task order.
Does TDR affect my ability to offer spot discounts below my catalog price?
TDR does not prohibit spot discounts below your catalog price. You can offer lower prices on specific orders, and those lower prices will be reported as your transaction price for that order. What TDR eliminates is the automatic PRC trigger that used to require you to lower your catalog price across all government orders if you discounted to your BOA customer. Under TDR, a spot discount on one order does not automatically reset your catalog price — but it will show up in your reported pricing data.
Where can I find the official TDR reporting requirements?
GSA's official TDR guidance is at gsa.gov/TDR. The Federal Acquisition Regulation (FAR) does not govern TDR directly — TDR is implemented through the GSA Schedules program under GSAR authority. Your MAS contract's mass modification documents will identify which TDR clauses currently apply to your specific SINs.