International Customs Forms, Duties & Taxes Explained
Customs forms, duties, and taxes confuse most first-time international shippers, but the rules are simpler once you know who fills out what and who pays.
Best Services for Shipping to Customs, Forms & Duties
| Service | Carrier | Est. Cost | Speed | Best For |
|---|---|---|---|---|
| First-Class Package International ServiceRecommended | USPS | $15-42 | 1-4 weeks | Lightweight parcels under 4 lbs; uses PS Form 2976 |
| Priority Mail International | USPS | $40-110 | 6-10 business days | Heavier tracked packages; uses PS Form 2976-B |
| Priority Mail Express International | USPS | $55-160 | 3-6 business days | Urgent shipments with date-certain service; uses PS Form 2976-B |
| Global Express Guaranteed | USPS | $80-250 | 1-3 business days | Fastest USPS option to major markets; uses its own customs documentation |
Customs Forms, Duties & Taxes
There are two main USPS customs forms. PS Form 2976 is a short declaration used for light, low-value parcels, while PS Form 2976-B is a longer commercial-invoice-style form used for larger or higher-value packages and placed inside a PS Form 2976-E customs envelope. Both ask for an accurate description, quantity, value, and country of origin for each item. Duties and taxes are set by the destination country and are typically the recipient's responsibility under Delivered Duty Unpaid (DDU); shipping Delivered Duty Paid (DDP) instead means you cover those charges so the recipient pays nothing on arrival.
Restrictions and Prohibited Items
- Aerosols, flammable liquids, and other hazardous materials are widely prohibited or restricted
- Lithium batteries face strict packaging and quantity limits and often ship only when installed in equipment
- Perishable food, plants, seeds, and agricultural products are restricted in many countries
- Currency, precious metals, and loose gemstones are commonly prohibited in the mail
- Tobacco, vaping products, and alcohol are restricted or prohibited to many destinations
- Counterfeit goods and items infringing trademarks are prohibited everywhere
Key Takeaways
- Almost every international shipment of goods needs a customs declaration.
- PS Form 2976 covers light, low-value parcels; PS Form 2976-B covers larger or higher-value ones.
- Duties and taxes are set by the destination country and are usually the recipient's responsibility.
- DDP lets you pay duties up front so the recipient pays nothing on arrival; DDU leaves it to them.
- Accurate, specific declarations are the biggest factor in clearing customs without delay.
How Customs Clearance Actually Works
When your package reaches the destination country, customs reviews the declaration to classify the goods, confirm they are allowed, and calculate any duty and tax owed. A clear description, honest value, and correct country of origin let that happen automatically; vague or inconsistent information triggers a manual review that can add days or weeks.
Who pays depends on the Incoterm. Under Delivered Duty Unpaid (DDU), the recipient pays duties and taxes before the carrier releases the parcel. Under Delivered Duty Paid (DDP), the sender pays those charges up front, which is smoother for the buyer but available mainly through private-carrier express services.
- Write a specific item description, not a vague category, on every customs form.
- Declare the honest value and let the destination country assess duties and taxes.
- Decide DDU or DDP based on whether you want the buyer to handle charges on arrival.
Avoiding the Customs Mistakes That Cause Delays
Most customs delays trace back to the paperwork rather than the carrier. Missing country of origin, a value that does not match the contents, or a prohibited item slips through to a hold that no amount of express service can speed up.
Because the right form and fields are easy to get wrong by hand, shipping software that completes the correct customs form for the chosen service removes a major source of error. Pair that with rate-shopping across USPS, FedEx, and UPS so the cheapest valid international service is selected for each package.
- Confirm the item is permitted in the destination country before you pack it.
- Use the customs form the service requires, and let software select it when possible.
- Include the recipient's phone number, which customs and carriers often need to clear the parcel.
Common Mistakes to Avoid
| Mistake | Why It Hurts | Better Approach |
|---|---|---|
| Writing vague customs descriptions like miscellaneous or gift items | Unclear descriptions trigger manual customs review and slow delivery. | Write a specific description, quantity, value, and country of origin for each item. |
| Undervaluing the shipment to reduce duties | It is a customs violation risking seizure, fines, and returns, and does not reliably avoid charges. | Always declare the honest value and let the destination country assess duties and taxes. |
| Assuming the recipient knows duties may apply | Buyers refuse packages or leave negative reviews when surprised by a customs bill. | Tell buyers up front that duties and taxes may apply, or ship DDP to cover them yourself. |
| Using the wrong customs form for the service | The package can be rejected at acceptance or held in transit for incomplete documentation. | Match the form to the service and value, and let shipping software select it for you. |
Checklist for Shipping to Customs, Forms & Duties
- Confirm your item is permitted in the destination country before packing.
- Choose the international service that fits the weight, value, and deadline.
- Complete the correct customs form with a specific description, quantity, value, and country of origin.
- Decide DDU or DDP and tell the buyer who is responsible for duties and taxes.
- Include the recipient's full address and phone number to avoid clearance delays.
- Compare USPS, FedEx, and UPS on every label, or let Ship Intelligence pick the cheapest valid rate.
- Buy discounted labels below commercial rates to protect margin against the 2026 increases.
Frequently Asked Questions
PS Form 2976 is a short customs declaration for light, low-value parcels. PS Form 2976-B is a longer commercial-invoice-style form for larger or higher-value packages, and it goes inside a PS Form 2976-E customs envelope. The right form depends on the service and the value, and most shipping software selects it for you. Learn more in our customs form glossary entry.
Duties and taxes are set by the destination country and are typically the recipient's responsibility under Delivered Duty Unpaid (DDU). If you want to cover them yourself so the recipient pays nothing on arrival, you ship Delivered Duty Paid (DDP), which is available through some private-carrier express services.
It varies widely by country and product, so there is no single rate. Each country sets its own duty rates, value-added tax or GST, and low-value thresholds below which little or nothing is charged. Check the destination country's customs guidance for the product category before quoting a buyer a landed cost.
No. Undervaluing a shipment is a customs violation that risks seizure, fines, and a returned package, and it does not reliably avoid charges anyway. Always declare the honest value and let the destination country assess duties and taxes correctly.
Accurate, specific paperwork. A clear item description, correct quantity and value, the country of origin, and a complete recipient address with phone number all help customs process the parcel without a hold. Vague descriptions like miscellaneous goods are a common cause of delays.
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