Counterfeit Postage Stamps: How to Spot Fake Forever Stamps

The most reliable sign that postage stamps are counterfeit is the price. The US Postal Service never sells stamps below face value, and its law-enforcement arm, the US Postal Inspection Service (USPIS), says counterfeits are typically offered at 20 to 50 percent off, often in bulk.

Applied to today's prices, that is easy to check. A book of 20 Forever stamps costs $16.40 at face value (USPS, from July 12, 2026). At 20 to 50 percent off it would cost between $8.20 and $13.12, which is our arithmetic. Any book offered in that range, or a roll of 100 offered well under $82, fits the pattern the inspectors describe.

The other signs, in order of how much they tell you:

• The seller. Genuine stamps come from the USPS, a post office, or an Approved Postal Provider, which the USPIS describes as an authorised retailer allowed only minimal discounts under an agreement with the Postal Service.
• Where it ships from. The USPIS says stamps from vendors outside the United States are more than likely counterfeit.
• The channel. Social media marketplaces and third-party sellers on shopping sites are the channels the USPIS names.
• The stamps themselves. The Postal Service's own warning asks buyers to examine stamps closely. The practical way is to compare them with a pane bought at a post office: print sharpness, colour, the shape of the die-cut edges, and the printing on the backing paper. A difference is a strong sign; no visible difference proves nothing, because good fakes copy the design.

PhilLens can tell you which USPS issue a design matches, which helps you check that a listed design really exists. No photo, from us or anyone else, can prove that a stamp was printed by the Postal Service, so the seller and the price remain the deciding checks.

The letter may never arrive. The USPIS states that items mailed with counterfeit postage are considered abandoned and may be opened and disposed of at the Postal Service's discretion. It also states that buying or using counterfeit postage is illegal and can lead to action by the Inspection Service.

The federal law is 18 U.S.C. 501. It covers forging or counterfeiting postage stamps, and knowingly using, selling, or possessing them with intent to use or sell. The penalty is a fine, imprisonment of up to five years, or both (Cornell Law School, Legal Information Institute).

In practice this means that once you have reason to think a batch is fake, the safe course is to stop using it. A letter that matters, such as a bill payment or a legal document, is the worst place to test a doubtful stamp.

Some are and some are not; the listing alone does not tell you. The USPIS names third-party sellers on e-commerce sites as one of the main channels for counterfeits, so judge each listing by who sells it and what it costs.

• At or close to face value from an established retailer: consistent with genuine stamps. ForeverStamps.com, an independent site, also lists warehouse clubs such as Costco and Sam's Club as places that sell rolls of 100 and multi-book packs.
• Well below face value, from a seller you cannot identify, or shipped from abroad: this is the pattern the USPIS warns about.

The small discounts some legitimate retailers give come through USPS agreements (Approved Postal Providers), and the USPIS describes them as minimal. A discount of a fifth or more is not in that category.

Yes, and it is an old problem. Wikipedia's article on philatelic forgery separates two kinds:

• Postal forgeries are made to cheat the post office out of postage. Because each stamp is worth little, the forger needs large quantities to cover costs, so they copy everyday stamps. The article gives the US 2-cent Washington of 1894 and the 13-cent Liberty Bell of 1980 as examples.
• Philatelic forgeries are made to cheat collectors, so they copy rare stamps that sell for more than face value.

Today's fake Forever stamps are the first kind. Postal services have long used protective measures, which the same article lists as watermarks, special paper, fine engraving, particular printing methods, silk threads and secret marks. None of them helps a buyer who never sees the stamps before paying, which is why the price and the seller matter more than any feature you can check on a screen.

• Stop using them. Mail carrying them can be treated as abandoned (USPIS).
• Keep the evidence: the listing or a screenshot of it, the seller's name, the receipt and the packaging.
• Report it to the Postal Inspection Service. Its Counterfeit Postage Reporting System, launched on September 26, 2025, takes reports of counterfeit sales, intentional use and revenue fraud schemes at mailtheft.uspis.gov, or by phone on 1-877-876-2455.
• Ask the marketplace for your money back under its own buyer-protection rules, and include your report details.
• Buy replacements from the USPS, a post office or an Approved Postal Provider.

A counterfeit Forever stamp is a problem for anyone who mails a letter. A forged or altered rare stamp is a problem for collectors, and it is checked in a different way: perforations, gum, repairs, cancels and a certificate for anything expensive. Our guide to spotting a fake stamp covers that side. For what real stamps cost and where to buy them at face value, see the Forever stamp price page.

Research and drafting were assisted by AI, and every figure, date and legal statement was checked against the sources listed below: the US Postal Inspection Service, the USPS price list and Postal Store, the Postal Service's own public warning, the text of 18 U.S.C. 501 and Wikipedia. The discount price band for a book of 20 is our own arithmetic from the USPS price. Prices are those in effect on September 25, 2026.