Reviewed August 31, 2026. Costco currently maintains a U.S. product listing for a 100-count pack of USPS First-Class Forever stamps. The listing identifies the pack as five booklets of 20 stamps, not a roll. Price and availability can depend on the selected warehouse or delivery location, so check Costco’s live listing before relying on either.
Does Costco sell Forever stamps?
Yes. Costco’s current product page lists USPS First-Class Forever stamps in a 100-count package. At the time of this review, the page described five 20-stamp booklets, designs that may vary by purchase date, and a limit of 10 packs per member. The page also said the delivered design cannot be selected.
Check Costco’s current 100-count listing. Set your warehouse or delivery location to see the availability and price Costco offers to you.
How much are Forever stamps at Costco?
Use the price displayed on Costco’s live product page. A fixed price copied into an article can become wrong when postal rates or retailer pricing change, and Costco may require a warehouse or delivery location before displaying an offer.
For a useful comparison, the postage value of 100 ordinary Forever stamps is $82.00 at the current 82-cent one-ounce First-Class Mail letter rate, effective July 12, 2026. Subtract Costco’s displayed price from $82.00 to find the current dollar difference. Divide that difference by $82.00 and multiply by 100 to find the percentage difference.
| Check | Costco listing | Why it matters |
|---|---|---|
| Package | Five booklets of 20; 100 stamps total | Do not confuse the pack with a 100-stamp roll. |
| Design | May vary; cannot be selected at order | Not ideal when a specific wedding, holiday, or commemorative design is required. |
| Availability | Location-sensitive | Confirm online or with the local warehouse before making a trip. |
| Purchase limit | Costco lists a limit of 10 per member | Relevant to high-volume buyers. |
| Executive reward | Excluded from the 2% reward program | Do not count that reward as part of the stamp price comparison. |
Are Costco Forever stamps cheaper?
They are cheaper only if Costco’s live price is below the postage value of the same number and type of stamps after any applicable membership, delivery, or access costs are considered. Compare the same quantity: Costco’s listing contains 100 ordinary Forever stamps, while a single USPS booklet commonly contains 20.
If you already have a Costco membership and do not need a particular design, the 100-count option can be convenient. Joining only to buy stamps requires a different calculation because the membership cost may exceed the difference on the stamp order.
Costco, USPS, or an independent retailer?
| Channel | Best fit | Check before buying |
|---|---|---|
| Costco | Members who want a 100-count pack and accept a varying design | Live price, selected-location availability, package count, and delivery terms |
| USPS | Buyers who want the official catalog and a specific available design or format | Current product availability and any online handling charge |
| Independent retailer | Buyers comparing designs, bundles, service, and retail price | Seller identity, exact quantity, return terms, payment protection, and whether the discount is plausible |
Very large discounts deserve extra verification. Compare the seller, exact product, quantity, payment protections, and return terms instead of judging authenticity from price alone. For another current retail option, browse our Forever stamps for sale; each product page states its quantity and current selling price.
What can 100 Costco Forever stamps mail?
Each unused, valid ordinary Forever stamp pays the current one-ounce First-Class Mail letter rate, regardless of when it was purchased. One stamp is not automatically enough for a heavier, oversized, square, rigid, or international mailpiece. Use our Forever stamp calculator for common scenarios, then confirm unusual pieces with the USPS postage calculator.
Before you buy
- Set your warehouse or delivery location on Costco’s product page.
- Confirm the current price and whether the item is available online or locally.
- Verify that five booklets of 20 meets your quantity needs.
- Accept that the design may vary and cannot be selected.
- Compare the displayed total with the current postage value and any relevant access or delivery costs.
Frequently asked questions
Are Costco’s 100 Forever stamps a roll?
Not according to the current Costco product description. It lists five booklets of 20 stamps, for 100 stamps total.
Do I need a Costco membership?
The product page applies a per-member purchase limit. Costco’s current access and checkout terms should be checked on the live listing because they can differ by channel and location.
Can I choose the stamp design?
No. Costco says designs may vary by purchase date and the delivered design cannot be specified at the time of order.
Do Costco Forever stamps expire?
Unused, valid Forever stamps do not expire and continue to cover the current one-ounce First-Class Mail letter rate. Read the full Forever stamp validity guide for damaged, used, or questionable stamps.
Can I use them for international mail?
Ordinary domestic Forever stamps can contribute their current postage value, but the required international postage depends on the destination and mailpiece. Confirm the total with USPS before mailing.
Sources checked: Costco’s official 100-count USPS Forever stamp product page and USPS Notice 123, effective July 12, 2026.
For a broader comparison of official and retail purchase options, see Where to Buy Forever Stamps.