Posting a parcel or letter back home is easy for any visitor to the USA. Walk into any US Post Office, or drop a stamped envelope in a blue mailbox — it then travels worldwide. Small packages can go by USPS’s cheapest international service, a standard letter or a postcard needs only one international stamp (current rates are on usps.com), and every parcel abroad requires a customs form. None of it has anything to do with your ESTA.
TL;DR: For most visitors this means USPS: a Forever stamp for international mail covers a short letter or postcard, while an international parcel service is the budget option for small packages. Complete the customs paperwork, skip banned items like food and plants, and allow several days for Priority Mail. Your ESTA fee is unaffected either way.
Key facts
- USPS international parcels start from $19.40 (First-Class), $32.65 (Priority) and $62.70 (Express) in 2026 (USPS, 2026).
- An international Forever stamp for a letter or postcard is one stamp at the current USPS rate (USPS, 2026).
- Every international shipment must carry a customs declaration form (USPS, 2026).
- Food, plants, seeds and meat are commonly banned or restricted by customs (CBP, 2026).
- An ESTA costs $40 and lasts 2 years; posting a parcel does not affect it (CBP, 2026).
| Service (2026) | From price / speed |
|---|---|
| Global Forever stamp (letter/postcard) | $1.75 |
| First-Class Package International | from $19.40, up to several weeks |
| Priority Mail International | from $32.65, 6-10 business days |
| Priority Mail Express International | from $62.70, 3-5 business days |
| Effect on your ESTA | None |
Postage is a real line in a trip budget once souvenirs pile up. Plan spending with our USA travel budget guide, learn how US cards and cash work in the cards and currency guide, and confirm the entry fee in our ESTA cost breakdown before you start shipping boxes.
Can you send mail home from the USA as a visitor?
Yes, any visitor can post letters and parcels back home from the United States. The United States Postal Service serves everyone, with no residency or ID check to send a letter or parcel. Use the counter at any USPS branch for parcels and customs forms, or simply drop a stamped envelope in one of the blue USPS boxes on the street. Private couriers like UPS and FedEx are options too, usually faster and pricier.
Your choice comes down to speed, price and size. USPS suits most tourists sending postcards, documents or a modest box of souvenirs. UPS, FedEx and DHL make sense for heavy, urgent or high-value shipments, with door-to-door tracking. Whatever you pick, keep the receipt and tracking number until the item lands. If your route runs through a cruise port, our cruise and port customs guide covers re-entry paperwork.
USPS international services and 2026 prices
USPS runs four international tiers, and price tracks speed. First-Class Package International is the budget option for small parcels. Priority Mail International and Priority Mail Express International cost more but deliver faster. Global Express Guaranteed is the fastest, premium tier. Pick by urgency, not habit (USPS, 2026).
Flat-rate boxes can save money on heavy items. USPS Priority flat-rate boxes for international parcels let you post as much as fits for one price, ideal for dense souvenirs like books or ceramics. Weigh the parcel at the counter to compare, because a light box is often cheaper by weight than flat rate. For the maths on your whole trip, our cost breakdown guide keeps surprises down.
Pro tip: Mail heavy souvenirs to yourself instead of paying an airline’s excess baggage fee. Compare a flat-rate Priority Mail box with your airline’s overweight charge, and it can save your back at the airport.
How to send a package home from the USA
Boxing up a package to send abroad takes about ten minutes at the counter. Pack the items securely, complete the customs declaration for the contents and value, address it clearly in the destination format, and pay. The clerk weighs it, prints the label and hands you a tracking number. Do it a few days before you fly so you are not rushing.
- Pack the box tightly with padding; USPS sells boxes and tape at the counter.
- Fill in the customs declaration (contents, value, and whether it is a gift or goods).
- Write the full address in the destination country’s format, including postcode and country.
- Choose a service by speed and price, then pay by card or cash.
- Keep the receipt and tracking number until the parcel arrives home.
Shipping souvenirs from San Francisco. Emma from Sydney over-shopped on Union Square. Rather than pay excess baggage, she boxed 3 kg of gifts at a USPS branch, filled in the customs form marking them “gifts”, and sent them by the international Priority service for about $48. They reached Australia in nine days, tracked the whole way.
Customs forms and what you can and cannot mail
Every parcel leaving the USA must include a customs declaration, and some items simply cannot go. Food, fresh produce, plants, seeds, meat and many animal products are restricted or banned, and your home country adds its own import rules on top. Declaring contents honestly matters — a false declaration can see the parcel seized. Check both ends before you seal the box (CBP, 2026).
Two rules trip visitors up. First, “gift” and “merchandise” are treated differently for duty at the destination, so mark the form accurately. Second, your home country may charge import duty or tax on arrival, regardless of how little you paid. A $60 box of clothes can attract a customs charge in the UK or EU, so warn whoever receives it. For the fuller banned-items picture, see the CBP prohibited items list.
Would you rather not tackle the ESTA form yourself amid all the trip admin? You can apply directly at the official site for $40, or let us check and submit it so your entry is sorted while you post your parcels. We are an independent assistance service, not a government agency — start with our ESTA application guide.
Sending mail home: postcards, letters and stamps
Posting a card or a short letter needs only a single international Forever stamp. That single stamp covers a standard one-ounce international letter or a postcard to anywhere in the world, and it never expires even if prices rise. Buy them at any Post Office, and many hotels and pharmacies sell them too. Drop the item in any blue USPS box (USPS, 2026).
Delivery times vary by distance. An international postcard typically takes one to three weeks, so post it early in a trip if you want it to beat you home. Write the full destination address, including the country in capitals, and stick the stamp top-right. For a small gift or documents, the cheapest parcel tier is the letter’s parcel cousin. Planning a themed trip? Our gift guide pairs well with posting presents home.
Does sending mail home affect your ESTA?
No. Mailing letters or parcels abroad has no effect on your ESTA whatsoever. Posting letters or parcels is ordinary tourist activity, not work or business, so your authorization stays valid for its full 2 years and up to 90 days per visit. Customs and Border Protection is not notified when you mail a box of souvenirs. Your $40 ESTA is untouched (US Department of State, 2025).
One nuance is worth knowing. Selling goods you mail, or running a business from the parcels, would stray into activity the Visa Waiver Program does not allow — but posting personal items and gifts is fine. Keep it personal and you have nothing to think about. If you are unsure whether you even need an ESTA, check who needs an ESTA and the ESTA requirements guide.
Frequently asked questions
How much does it cost to send mail home from the USA?
A postcard or letter needs a single Global Forever stamp. Parcels are priced by service: First-Class Package International is the budget option, while Priority Mail International and express services cost more and arrive faster. Price rises with weight and speed.
Can tourists use the US Post Office?
Yes. The USPS serves anyone with no residency or ID requirement to post an item. Use a Post Office for parcels and customs forms, or a blue street mailbox for stamped letters and postcards.
Do I need a customs form to send a package home?
Yes, every international parcel needs a customs declaration listing the contents, value, and whether it is a gift or goods. The Post Office clerk helps you complete it. A false declaration can lead to the parcel being seized.
What can I not mail home from the USA?
Food, fresh produce, plants, seeds, meat and many animal products are restricted or banned, and your home country adds its own rules. Check the CBP prohibited items list and your destination’s customs site before sealing the box.
Will my family pay customs duty on a parcel from the USA?
They might. Many countries charge import duty or tax on incoming parcels regardless of value, so a modest box can still attract a fee. Mark the customs form accurately as a gift or goods, and warn whoever receives it.
How long does mail from the USA take to arrive?
A postcard or letter usually takes one to three weeks internationally. Priority Mail International runs 6-10 business days, and the express service 3-5 days. Distance, customs and the destination’s own post all affect timing.
Does sending mail home affect my ESTA?
No. It is ordinary tourist activity and has no effect on your ESTA, your 2-year validity or your 90-day stay. Only selling goods or running a business would raise a Visa Waiver issue, not posting personal items.
Whether it is a single card or a box of gifts, posting items home from the States is cheap, simple and completely separate from your entry status. Fill in the customs paperwork, avoid banned items, and let USPS do the rest. Sort your entry first with our first-time traveler guide and the ESTA cost page.
About the author: Nathan Brooks is a US travel and entry writer who has covered ESTA, the Visa Waiver Program and on-the-ground visitor logistics since 2018. Every guide is checked against current USPS, CBP and US Department of State guidance.
Last updated: 2026-08-27 — verified against USPS and CBP guidance.
