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USPS Forever International Shipping Stamps: Costs and Rules (2025 Guide)
USPS Forever International Shipping Stamps: Costs and Rules (2025 Guide)
When sending mail internationally, calculating postage isn't always intuitive. Many US users often ask, "Can I use Forever stamps to send mail internationally?" The answer depends on the weight, destination, and current USPS policies.
This guide covers:
Can I use regular Forever stamps to send international letters?
How many Forever stamps will be needed for international mail in 2025?
Global Forever vs. Regular Forever Stamps
Common Misconceptions and How to Avoid Them
A more economical international shipping solution
1. Can regular Forever stamps be used on international mail?
Short answer: Yes, but additional postage is required
regular First Class Forever stamp (for domestic 1-ounce letters) will cost $0.73 in 2024-2025 and will increase to $0.78 on
July 13, 2025. While this stamp is suitable for standard domestic letters, international mailings typically require more postage, so it is only suitable for international letters and must be accompanied by an additional stamp.
2. How many Forever stamps will be needed for an international letter in 2025?
International postage rates (from July 13, 2025)
Class Mail International : $1.70 for standard 1 oz . Each additional oz : $0.29
How to match stamps?
Scenario | Recommended method | Fee Description |
1 oz letter | One Global Forever stamp ($1.70) | Accurate postage |
Same 1 oz | Three regular Forever stamps ($0.78 x 3 = $2.34) | $0.64 more |
2 oz letter | 1.70 + 0.29 = $1.99 or use two Global coins | Global stamps cover up to 2 ounces. Although not universal, they can be used with Additional ounce stamps to simplify operations. |
3. Global Forever Stamps vs. Regular Forever Stamps
Global Forever Stamp : A one-ounce stamp for international letters , currently priced at $1.70 (new price in 2025)
Regular Forever stamp : For domestic one-ounce letters . Can be used internationally but requires multiple stamps. Upper limits are more complex.
Overview Comparison
characteristic | Global Forever | Ordinary Forever |
postage | $1.70 (1 oz International) | $0.78 (1 oz domestic) |
International applicability | yes | Yes (multiple combinations are required) |
Best suited use case | International mail postage | Supplemental Postage/Domestic Mail |
4. Common mistakes and suggestions for overseas mailing
Mistake #1: Thinking a regular Forever stamp is enough
In fact, international postage to most countries is $1.70, requiring at least three regular Forever stamps ($2.34) or one Global stamp.
Mistake #2: Ignoring Weight Limits
Letters exceeding standard size or weight limits (such as 3.5 oz.) require another form of service, such as Priority Mail International .
Mistake #3: Not considering destination-specific requirements
Some countries have additional customs forms or labeling requirements, such as requiring a commercial invoice for certain documents. Please be sure to refer to the official USPS International Mail Guidelines before mailing.
5. A more economical alternative to international shipping
Global Forever Stamp ( $1.70) : The most convenient stamp for 1 oz letters
International First Class Mail : includes tracking options and is suitable for light and frequent shipments.
Priority Mail International Flat Rate : Suitable for heavy items, starting at approximately $30.90 (as of 2025) for up to 4 lb envelopes or 20 lb medium boxes
First Class Package International Service (FCPIS) : Highly cost-effective, suitable for sending non-urgent light packages
Private courier companies (FedEx, UPS, DHL) : Fast but more expensive, suitable for urgent or valuable items
Is it worth using Forever stamps to ship internationally?
For a simple 1 oz letter : Direct mailing is most economical using one Global Forever stamp.
For slightly heavier letters or close to the extra ounce charge : three regular Forever stamps may be used but will incur an additional postage charge.
If you need to send a package or heavy letter: you should use Priority Mail International or a private courier.
FAQ
Q: Can I use only two regular Forever stamps to send an international letter?
A : Yes, you can send it, but the total value of the two stamps is $1.56 ($0.78×2), which is lower than the minimum international rate of $1.70, and you need to subsidize the postage.
Q: Will Forever stamps expire?
A : No. Existing Forever stamps will continue to be used to mail domestic one-ounce letters at the current rate, regardless of USPS price increases.
Q: What is the cheapest way to send a letter internationally?
A : For a 1-ounce letter, using a Global Forever stamp ($1.70) is the most economical; for heavier or small packages, FCPIS or Priority Mail International is recommended.
This guide is based on the latest USPS price adjustments and official instructions to help you handle your international shipping needs in the most cost-effective way.