USPS International Shipping Made Simple in 2025
Thinking about sending a package from the UK to the US, Australia or anywhere else? USPS is a popular choice because it offers flat‑rate boxes, decent coverage and a reliable tracking system. In this guide you’ll get the basics you need – how rates are calculated, what to pack, and how to protect your shipment with insurance.
How USPS Calculates International Rates
USPS uses a combination of weight, size and destination zone to set the price. The main services are Global Express Guaranteed (GXG), Priority Mail International, and First‑Class Package International Service. GXG is the fastest – usually 1‑3 business days – but it’s also the priciest. Priority Mail International balances speed and cost, delivering in 6‑10 days to most countries. First‑Class is the cheapest option for parcels under 4 lb, but delivery can take up to three weeks.
When you log into the USPS online calculator, you’ll enter the weight in ounces, choose the box type, and select the country. The system then adds fuel surcharge, any required customs forms, and optional insurance. Keep in mind that flat‑rate boxes (Medium, Large, and Extra‑Large) let you ship up to 20 lb for a set price, which can be a great deal if your items are heavy but compact.
Packing, Tracking & Insurance Tips
Good packing prevents damage and avoids extra fees. Use a sturdy box, seal it with strong packing tape, and cushion items with bubble wrap or packing peanuts. For flat‑rate boxes, the USPS provides them for free at post offices – just make sure the box isn’t over‑filled and that the weight stays under the limit.
Tracking is included with most international services. Priority Mail International gives you a tracking number that updates on the USPS website and, in many cases, on the destination country’s postal system. GXG offers end‑to‑end tracking with real‑time updates. If you need extra peace of mind, purchase insurance. USPS caps the standard liability at $100, but you can buy coverage up to $5,000. The cost is typically 0.5‑2 % of the declared value, depending on the service.
Customs forms are another must‑do. For items under $400 you can use the CN23 form, which the USPS prints when you create the label online. Fill in a clear description, the value, and the HS code if you have it. Incomplete forms can cause delays or extra charges at the border.
Finally, watch out for prohibited items. Each country has its own list – for example, batteries, alcohol, and certain foods often need special handling. Check the destination country’s rules on the USPS website before you ship.
By following these steps – picking the right service, packing securely, using tracking and insurance, and completing customs paperwork – you can send anything worldwide with confidence. USPS may not be the only player, but its flat‑rate options, decent coverage and worldwide network make it a solid choice for personal and small‑business shipments alike.
May 8, 2025
Evelyn Wescott
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Wondering if the USPS can handle your international packages? This guide answers that question and breaks down how USPS ships overseas, what to expect with rates and delivery times, and tips to make the process smoother. Learn about required customs forms, package tracking, and making sure your items arrive safely. Get practical advice to save time and avoid common mistakes. Whether you’re shipping a care package or business goods, this article covers all the essentials.
