Can You Return or Exchange Stamps at the Post Office? (USPS Rules Explained)

Bought too many stamps? Wrong design? A roll that stuck together in a humid closet? The counter answer is usually “we don’t take stamps back” — but that is not the whole rule. The Domestic Mail Manual, section 604.9, lays out four specific situations where USPS will exchange or refund postage, plus a list of things it never will. Here is the whole picture, in plain language.

The short answer

Your situation	What USPS will do	Catch
Stamps were damaged or defective when sold to you	Exchange at full postage value (DMM 604.9.1.1)	USPS must be at fault
Stamps became unusable in your possession (humidity, moisture)	Exchange for the same number of stamps, same denomination (604.9.1.2)	12-month on-sale rule, $100 cap per transaction
You bought the wrong denomination, kind or size	Exchange at full postage value (604.9.1.4)	Only full panes, sealed coils, full boxes or sealed packs
Semipostal (charity) stamps	Exchange for postage value only (604.9.1.5)	The charity contribution is not refunded
You simply changed your mind about loose stamps	Nothing — not exchangeable (604.9.1.6)	See your seller’s own return policy instead

1. When USPS is at fault

If the Post Office sold you stamps that were damaged, defective or otherwise unserviceable, it may correct the mistake by exchanging them at full postage value. This is the cleanest case — bring the stamps and the packaging to the counter, explain what was wrong, and the exchange is straightforward.

2. When stamps are damaged in your possession

This is the one bulk buyers care about. Stamps that become unusable “because of humidity, moisture, or other causes” while you own them can be exchanged — but only under four conditions written into 604.9.1.2:

• Equal number, same denomination. You get back the same count of stamps of the same kind, not cash.
• 12-month rule. The stamps must be varieties that were on sale at Post Offices within the 12 months before the transaction.
• Original configuration over $10. Quantities of the same denomination worth more than $10 — sheets, coils, booklets — must be returned in the same configuration as when bought.
• $100 cap. Each transaction is limited to $100 worth of postage per customer.

That last limit is the sting. A spoiled 2,000-count roll is $1,640 of postage at today’s 82¢ rate, and the exchange process reclaims a fraction of it. Prevention is worth far more than the paperwork — see how to store Forever stamps for the setup that avoids this entirely.

Condition matters too: the stamps must be “substantially whole,” with the denomination visible. If a coil has partly stuck together and can’t be counted, the postmaster may accept your estimate of how many stamps are left (604.9.1.3).

3. When you bought the wrong thing

Bought 10¢ makeup stamps when you needed Forever stamps? Under 604.9.1.4 you can exchange at full postage value — but only if what you bring back is intact:

• Full panes of stamps
• Coils in their original sealed wrappers
• Full boxes of stamped envelopes
• Original sealed packs of stamped cards

If you are exchanging $250 or more, you must show an acceptable primary form of identification and present the stock at the postal unit where your mail is delivered.

What can never be exchanged

DMM 604.9.1.6 is blunt about it. These are off the list:

• Adhesive stamps — unless you fall under one of the exceptions above (buying error, defective, damaged, or affixed to commercial envelopes and postcards)
• Stamps cut from stamped cards, stamped envelopes or aerogrammes
• Parts and pieces of stamped cards
• Stamped cards, stamped envelopes and aerogrammes received for reply
• Mutilated and defaced stamps

Note the knock-on effect: mutilated or defaced stamps are also invalid for postage under DMM 604.1.3, so a badly damaged stamp has no second life as mail. If an exchange is denied and you think that is wrong, you can appeal the postmaster’s decision to the Consumer Advocate at USPS Headquarters (604.9.1.7).

Refunds instead of exchanges

Exchanges swap stamps for stamps. Refunds of postage and fees are handled under 604.9.2 and are time-boxed — you must apply inside these windows, counted from the mailing date:

Mail type or service	Apply no sooner than	Apply no later than
Priority Mail Express	2 days	30 days
Priority Mail Express with an extra service	30 days	60 days
All other classes of mail	10 days	60 days
All other mail with extra service(s)	30 days	60 days

A full 100% refund may be made when USPS was at fault, when you paid more than the lawful price, when service to the destination country was suspended, or in a few other narrow cases. This is about mailed pieces and fees — not about returning unused stamps.

If you bought your stamps somewhere other than the Post Office

None of the above applies to a private seller’s return policy — that is set by whoever sold you the stamps. Two things are worth doing before you buy in bulk:

• Read the listing carefully. Quantity, format (roll, booklet, sheet), year and design all matter — our guide to reading a stamp listing shows what each field means.
• Confirm the stamps are genuine. Discounted USPS stamps are legitimate, but the market has counterfeits; how to tell real discount Forever stamps covers the checks. Our shipping and returns terms are on the FAQ page.

How to avoid needing an exchange at all

1. Count and inspect on arrival. Check roll counts and sheet condition the day your order lands — that is the easiest window for any claim.
2. Store them cool and dry. Humidity is the single most common cause of unusable stamps, and the exchange cap makes it expensive.
3. Buy the quantity you will actually use. Start with how to buy Forever stamps in bulk rather than guessing.
4. Check the rate before you over-buy. Forever stamps do not expire and keep full value, so stocking up is safe — the January 2027 rate outlook explains the timing of the next change.

Frequently asked questions

Can I return unused stamps to the Post Office for cash?

Generally no. Loose adhesive stamps are not exchangeable unless the sale was a mistake, the stamps were defective, or they were damaged while in your possession — and even then you receive replacement stamps, not money.

Can I exchange a roll of stamps that stuck together?

Yes, under DMM 604.9.1.2, if moisture made them unusable. Bring them in the original configuration; if they can’t be counted, the postmaster may accept your estimate. Exchanges are capped at $100 worth of postage per transaction.

What if I bought Global Forever stamps but don’t mail internationally?

A wrong-denomination purchase can be exchanged at full value under 604.9.1.4, but only if the stamps are still in full panes or sealed coils. Once opened and loose, they are not exchangeable — though a Global Forever stamp is still worth its $1.75 value and can be combined with other stamps on heavier domestic mail.

Can I exchange semipostal (charity) stamps?

Yes, but only for the postage portion. Under 604.9.1.5 the contribution amount is not refundable and is not included in the exchange value.

Is there a time limit for exchanging damaged stamps?

The rule that functions as a clock is the 12-month on-sale test: the stamps must have been sold at Post Offices within the 12 months before your transaction. Older or discontinued varieties can be refused.

What if my exchange is refused?

Ask for the decision in writing and appeal to the Consumer Advocate at USPS Headquarters, as provided in DMM 604.9.1.7.

Do Forever stamps expire if I hold on to them?

No. Forever stamps never expire and always cover a 1 oz First-Class letter at the price in effect when you mail — which is why holding them through a rate change costs you nothing. See Forever stamps vs. rising USPS rates.

Buying stamps that fit how you mail

• Wholesale Forever stamps — 1,000 at 20¢ each, 2,000 at 15¢ each
• U.S. Flag Forever stamp rolls — 100-count rolls for everyday letters
• Holiday Forever stamps — seasonal designs for cards and invitations

Exchange and refund rules quoted from the current Domestic Mail Manual, section 604.9 (pe.usps.com), accessed October 28, 2026. Retail postage values reflect the USPS rate change effective July 12, 2026 (82¢ Forever stamp, $1.75 Global Forever). Procedures can vary by Post Office; ask at your local counter before travelling with a large quantity.