The most useful counterfeit check costs nothing and takes about twenty seconds. You do not need a UV lamp, a loupe, or any expertise at all.
Unroll the first two feet of a bulk coil and read the serial numbers.
Why this works
Genuine coils carry varied, randomized micro-tagging. Counterfeit operations do not go to that trouble — generating unique data for every stamp costs processing time and money, so they take a real roll, copy it, and repeat.
The result is a pattern: the same serial recurring at a fixed interval, often every tenth stamp. If you see repeats in the first two feet, the batch is fake, and no further inspection is needed.
The counter-intuitive part: a pattern that looks too perfect is the tell. Genuine stock varies. Machine-perfect regularity is what a copy produces.
Why they pass a desk inspection
Modern forgeries are built to survive the office eye. Under fluorescent light they look right — the color is close, the perforations are plausible, the design is a faithful copy.
What they fail is the sorting eye. USPS equipment scans for specific chemical tracers in the ink and adhesive using high-speed infrared and UV imaging. No reaction, and the envelope is diverted into a rejection bin.
This is why the failure surprises people. The stamps looked fine in the mailroom, and they will look fine right up until the moment they are pulled at the hub.
The economics that should end the conversation
Do the arithmetic on any deep-discount offer. If someone sells you a $0.68 stamp for $0.35, where is the other thirty-three cents coming from?
There is no answer. USPS manages production tightly; there is no vast overstock pile waiting to be liquidated at half price. A claimed bankruptcy clearance of postage is not a rare opportunity — it is a description of something that does not happen.
Genuine secondary-market sourcing does exist, and it produces roughly 10–20% off. That range reflects real acquisition costs. A 45% "liquidation" reflects nothing.
Best deals on Forever stamps
What it actually costs when it fails
The money spent on the stamps is the smallest part.
Mail caught carrying forged postage is not simply returned — it can be held while the matter is looked into. For a time-sensitive campaign, weeks of delay means the offer has expired before the customer reads it, and you have lost the printing, the assembly labor and the postage together.
There is also a durable consequence: once forged tokens enter the federal mail stream under your name, you are on a list. Ignorance is not treated as a defense, and the conversation that follows is not one you want to be having about a spreadsheet line.
| Sourcing channel | Price variance | Audit result |
|---|---|---|
| Post office window | Baseline | Passes |
| Vetted commercial supplier | Modest volume discount | Passes |
| "Liquidator" at −45% | Not achievable legitimately | Rejected |
A procurement rule worth automating
One organization set a filter that automatically rejects any quote deviating more than 10% from the published Postal Regulatory Commission rate filings. It is blunt, it occasionally rejects something legitimate, and it has never once let a counterfeit batch through.
Pair it with an arrival check: unroll two feet, read the serials, pull five samples for adhesion and consistency, then log the batch. Ten minutes per delivery.
Scammers are predictable in one respect worth knowing — every time the price of a stamp rises, the number of discount sites rises with it. Watch for the surge after each announced increase.
Where to buy
The USPS official store, or a specialist such as Forever Stamp Center that provides a verifiable chain of custody, a real invoice, a physical address and a phone number that answers.
Current fraud patterns come from the USPS Office of Inspector General and the FTC; the governing regulations are in CFR Title 39; prices are in the USPS Notice 123 charts. For an emergency top-up, the USPS location finder. The Smithsonian National Postal Museum and USPS postal history archives are genuinely interesting on the evolution of secure printing.
The short version
Unroll two feet and look for repeating serials. Reject anything more than about 20% below retail on principle. And treat stamps as the cash equivalent they are — store them properly, log them, and buy ahead of rate rises, which is the only discount that is always real.
More on buying Forever stamps
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- 👉 USPS Stamps Price List 2026: Avoiding Surcharges on Bulk Business Mail
Retired USPS mailroom supervisor with 30 years of service in Chicago. He now contributes columns on Forever Stamps, sharing trusted advice on spotting counterfeit risks and finding reliable discount deals for everyday mailers.
