Defective Pricing: The Cost-Data Duty That Turns a Good Deal Into a Refund

Published 2026 | TIKC NewsWire

When you negotiate a price with the government without real competition, you take on a duty most commercial businesses never face: to open your books, hand over your cost data, and make sure it’s accurate, complete, and current. Fall short and the deal you thought you closed can turn into a refund. That’s the world of the Truth in Negotiations Act (TINA) — now formally the “Truthful Cost or Pricing Data” statute (41 U.S.C. §§ 3501–3509) — and its enforcement mechanism, defective pricing.

What TINA actually requires

For certain negotiated contracts and modifications above the threshold (generally $2 million), and where no exception applies — such as adequate price competition or a commercial product or service — you must submit certified cost or pricing data and certify that it is accurate, complete, and current as of the date you reached agreement on price (FAR 15.403). The idea is simple: without competition to discipline the price, the government wants the same facts you have so it can negotiate fairly.

How “defective pricing” happens

If the data you certified turns out not to have been accurate, complete, or current — and the government relied on it and agreed to a higher price than it otherwise would have — the contract is “defectively priced.” The government is entitled to a price reduction to recover the overpayment, plus interest, and where the defect was knowing, potential penalties and even False Claims Act exposure (DCAA guidance, 2026). The classic traps aren’t exotic: using stale vendor quotes, failing to disclose a discount you’d just secured, or leaving out data your estimators had in hand.

Why growing small businesses need to care

TINA feels like a big-contractor problem — until you win your first large sole-source or follow-on award. 8(a) sole-source deals, non-competitive modifications, and negotiated task orders can all cross the threshold and trigger the certification. The moment you’re pricing without competition above the threshold, the cost-data duty is yours.

What to do now

• Know your threshold and exceptions. Confirm early whether certified cost or pricing data is required, or whether an exception (competition, commerciality) applies.
• Run a “sweep” before agreement. Right before you shake hands on price, refresh your data — new quotes, new discounts, new rates — and disclose it.
• Disclose completely. When in doubt, hand it over; omissions are what create defective-pricing liability.
• Keep records of exactly what data you submitted and when, so you can prove your certification was true as of the agreement date.

Certified pricing isn’t a formality — it’s a promise the government can audit for years. Make the promise one you can keep. Brick by brick.

FAQ

What is defective pricing?

Submitting certified cost or pricing data under TINA that was not accurate, complete, or current, which caused the government to agree to an inflated price — entitling the government to a price reduction.

When does TINA apply?

Generally to negotiated contracts and modifications above the $2 million threshold when no exception (like adequate price competition or a commercial item) applies (FAR 15.403).

What’s the penalty for getting it wrong?

A price reduction to recover the overpayment plus interest; where the defect was knowing, penalties and potential False Claims Act liability can follow.

How do I avoid it?

Confirm whether certified data is required, sweep for the most current data right before agreeing on price, disclose fully, and keep records proving what you submitted and when.

Sources

Defense Contract Audit Agency. (2026). Defective pricing audit guidance.

Federal Acquisition Regulation. (2026). 15.403, Obtaining certified cost or pricing data; 15.407-1, Defective certified cost or pricing data.

U.S. Code. (2026). Truthful Cost or Pricing Data, 41 U.S.C. §§ 3501–3509.

This article is general information, not legal advice.