Short Answer
Most GSA MAS rejections come from a short list of preventable problems: size status that doesn't match the SINs offered, labor categories or products outside SIN scope, price template errors, technical narratives that don't answer the factor, and missing required documents such as a subcontracting plan or financial statements. Nearly all of them can be caught with a careful review before you submit.
A GSA MAS offer can take months to prepare, and a rejection sends you back to the start. The frustrating part is that most rejections we see were preventable. The company was qualified. The offer just had one or two problems that a careful review would have caught.
This guide covers the problems we run into most and the checks we run before every submission. If you've already received a rejection letter, start with GSA MAS Offer Rejected? What It Means and How to Resubmit instead.
Size status that doesn't match your SINs
This is the one that surprises people most. Your size status for a MAS offer isn't whatever you usually call your company. Under the solicitation, the SIN with the preponderance of your proposed work determines your business size at the contract level, based on that SIN's NAICS code and size standard.
We've worked with companies that were comfortably small under one NAICS code but other than small under the code that covered most of the work they were proposing. GSA rejected the offer as submitted, and the fix was to resubmit as other than small with a subcontracting plan.
Missing subcontracting plan
If your offer is other than small, GSA requires a small business subcontracting plan, submitted through the subcontracting module in eOffer. The solicitation is blunt about this one: failing to submit a required plan results in rejection. It often travels with the size issue above.
Labor categories or products outside SIN scope
Every labor category and product has to fit the SIN it's offered under. When one doesn't, GSA may reject the offer or ask you to remove it.
In our experience, the SIN choice is usually fine. The problem is the description. A generic labor category description that could fit any contract doesn't show the evaluator why it belongs under a specific SIN.
Price proposal template errors
Pricing problems are rarely about the rates themselves. They're usually about the file:
- An outdated template version
- Reformatted sheets or removed formulas
- Placeholder values left in from a previous draft
- The same item offered at different prices under different SINs, which GSA won't award
- Rates that aren't competitive with comparable GSA pricing
Any of these can stop an evaluator from determining your pricing is fair and reasonable.
Technical narratives that don't answer the factor
Corporate Experience, Quality Control and (for services) Relevant Project Experience must be entered directly into eOffer. GSA won't consider uploaded documents addressing those factors, so a strong narrative sitting in an attachment counts for nothing. Relevant Project Experience also needs the supporting SOW, PWS or award document uploaded for each project.
The other common problem is content. Narratives that describe the company in general terms, instead of tying specific projects to the specific SINs offered, read as weak relevant project experience.
Expired training and readiness acknowledgments
Pathways to Success and the Readiness Assessment must both be completed within a year before you submit, by a designated Authorized Negotiator who is a company employee, not a consultant. If an offer takes longer than planned, they can expire before you submit.
Building on an outdated solicitation
GSA refreshes the MAS solicitation several times a year. Recent refreshes made real changes, including making Transactional Data Reporting (TDR) mandatory for all SINs. An offer prepared against an older refresh, or using older templates, is an easy rejection.
Missing or wrong financial statements
GSA uses your financial statements to decide whether you're a responsible contractor. The solicitation asks for the previous two years of annual statements, at minimum a balance sheet and income statement, audited if available, with an explanation of any negative results. Two common mistakes: submitting tax returns, which the solicitation says not to do, and submitting GSA Form 527 in place of statements, which doesn't meet the requirement.
Counting on a clarification request
Many offerors assume GSA will point out problems and give them a chance to fix them. Sometimes it does. But the solicitation tells offerors not to assume deficient items will be clarified before an offer is rejected, and we've seen offers rejected without a single clarification request.
How we help
Before any MAS offer we prepare goes to GSA, it goes through a full review against the current solicitation: size status, SIN scope, pricing, narratives, required documents and deadlines. Most of the rejections we see could have been caught in that review.
If you're preparing an offer, a Readiness Review is the fastest way to find the problems GSA would find, while they're still easy to fix.
Frequently Asked Questions
What is the single most common reason GSA rejects MAS offers?
In our experience, it's a mismatch between what the offer says and what the solicitation requires for the specific SINs offered: labor categories outside scope, narratives that don't tie projects to SINs, or a size status that doesn't fit the SIN carrying most of the work. The fix is to review the offer SIN by SIN, not as one package.
Can I upload my technical narratives as attachments?
Not for most of them. Corporate Experience, Quality Control and Relevant Project Experience must be entered directly in eOffer, and uploaded documents addressing them won't be considered. Past performance is the exception: it can be supported with CPARS or uploaded references. Write the narratives offline, then paste them into the right fields.
Can a consultant complete the Readiness Assessment for us?
No. Both the Readiness Assessment and Pathways to Success must be completed by a designated Authorized Negotiator who is an employee of your company, within a year before the offer is submitted. A consultant can help with everything else.
Does GSA give you a chance to fix problems before rejecting an offer?
Sometimes, but don't count on it. The solicitation tells offerors not to assume deficient items will be clarified before an offer is rejected. If you do get a clarification request, answer it completely and before the deadline.
How do I know if my company is small for a GSA offer?
Under the MAS solicitation, the SIN with the preponderance of your proposed work determines your business size at the contract level. So a company that's small under one NAICS code can be other than small for the offer, and an other-than-small offer needs a subcontracting plan.
Written by Kurt Karslioglu, Director of Sales
Kurt leads business development at Pera Inc. and guides small businesses through GSA MAS offers, OASIS+ submissions, and federal construction and defense proposals.