UK Import Duty Calculator

Work out your charges with the import duty calculator

Pop the goods value, shipping cost and an estimated duty rate into the calculator above and it returns three numbers that matter: the customs duty, the import VAT, and the grand total you'll hand over before HMRC or the courier releases your parcel. Below, you'll find exactly how those figures are built up, a worked example using real numbers, and the mistakes that catch people out.

What import duty and customs charges actually are

When goods cross the UK border from outside the country, the government can charge tax on them at the point of entry. There are two separate charges that get lumped together as "customs charges", and confusing them is where most of the surprise bills come from.

• Customs duty (also called import duty) is a tariff on the goods themselves. The rate depends on what the item is and where it was made.
• Import VAT is the same Value Added Tax you pay on a UK high-street purchase, applied to imported goods at the standard rate of 20%.

On top of those two, the courier or postal service almost always adds a handling fee (sometimes called a clearance or disbursement fee) for processing the customs paperwork and paying HMRC on your behalf. That fee goes to the carrier, not the government, and it's why a small parcel can arrive with a charge that feels out of all proportion to the contents.

Import duty vs import VAT: the two charges, kept separate

The single most useful thing to understand is the order the charges stack in, because import VAT is calculated after duty has been added. They don't sit side by side; one feeds into the other.

Here's the sequence HMRC uses:

• Start with the customs value of the goods. For most imports this is the price you paid plus the shipping and insurance cost to get them to the UK border.
• Apply the duty rate for that type of product to the customs value. That gives you the customs duty.
• Add the duty to the customs value, then charge 20% import VAT on that combined figure.

So VAT is charged on the duty as well as on the goods and shipping. It feels like being taxed on a tax, and in a sense you are. This is standard practice and matches how gov.uk explains tax and duty on goods sent from abroad.

How the import duty calculator works (the formula)

The maths behind the tool is straightforward once you see it written out. In plain words:

• Customs value = Goods price + Shipping + Insurance
• Customs duty = Customs value × Duty rate
• Import VAT = (Customs value + Customs duty) × 20%
• Total to pay = Customs duty + Import VAT + Courier handling fee

The one figure you can't know for certain in advance is the duty rate. Unlike VAT, which sits at a flat 20% standard rate for most goods, customs duty varies enormously by product. Some items carry a 0% rate, others run to 12% or more, and a few categories are higher still. The rate is tied to the product's commodity code (also known as a tariff or HS code), so the calculator asks you to enter the duty percentage rather than guessing it for you.

Finding the right duty rate

To get an accurate duty rate you need to classify your goods using the UK's official tariff. HMRC publishes the full list through the Trade Tariff tool, where you search for your product and read off the third-country duty rate that applies. Clothing, footwear, electronics and homeware all sit at different rates, so two parcels of the same value can attract very different duty. If you're unsure, the Trade Tariff's classification guidance will get you to the correct code.

Worked example: a £400 camera lens from Japan

Imagine Priya, a keen amateur photographer in Leeds, has found a camera lens online from a seller in Japan. The lens costs £400, and shipping to the UK is £40. Let's say the commodity code for that lens carries a duty rate of 4.2%. Here's how her bill builds up.

• Customs value: £400 goods + £40 shipping = £440
• Customs duty: £440 × 4.2% = £18.48
• Import VAT: (£440 + £18.48) × 20% = £458.48 × 20% = £91.70
• Customs charges subtotal: £18.48 + £91.70 = £110.18

On top of that, Priya's courier charges a £12 handling fee. So the parcel she thought cost £440 actually costs her £440 + £110.18 + £12 = £562.18 by the time it reaches her door. The £91.70 of import VAT is the biggest single chunk, which surprises a lot of first-time importers who only budgeted for the duty.

A second example: £90 of clothing from the US

Now take Marcus, who orders two jumpers worth £90 from a US brand, with £15 shipping. The total goods value is under the £135 threshold that triggers customs duty on most commercial imports, so no customs duty is charged here. But import VAT still applies. Because the goods are valued at or below £135, the seller should normally charge UK VAT at the point of sale rather than it being collected at the border. If they don't, expect to pay 20% on the £90 of goods, roughly £18, plus the courier's handling fee, before delivery.

Customs charges quick-reference

The 20% import VAT figure is the UK standard VAT rate confirmed on gov.uk's VAT rates page. Customs duty rates are not fixed in the same way, so always check the live rate for your specific product in the Trade Tariff rather than relying on a rule of thumb.

The low-value thresholds that change everything

Two thresholds decide whether you pay duty at all, and they catch people out constantly:

• The £135 goods-value line. For most commercial goods bought from an overseas seller, consignments valued at £135 or less generally don't attract customs duty. Instead, UK VAT is supposed to be charged by the seller at checkout. Above £135, customs duty can apply and import VAT is collected at the border. The £135 refers to the goods value alone, excluding shipping and insurance.
• Low-value duty relief. Even above £135, if the calculated customs duty comes out very small, HMRC may waive it because it's not worth collecting. This relief applies to the duty only, not to the import VAT, so you can still face a VAT bill on a parcel that pays no duty.

Gifts sent between private individuals follow different rules again, with their own value limit before charges start. A parcel marked as a gift but bought from a retailer doesn't qualify, so don't assume a "gift" label gets you off the hook.

Tips for buying from abroad without nasty surprises

Customs charges are unavoidable once goods cross the border, but you can stop them ambushing you.

• Budget for the full landed cost, not the sticker price. Add the likely duty, 20% VAT on the goods-plus-duty figure, and the courier fee before you decide whether the deal is actually cheaper than buying in the UK.
• Check whether the seller charges UK VAT at checkout. Many larger overseas retailers are registered for UK VAT and collect it upfront on orders up to £135, which means no border charge and faster delivery. If the price already includes UK VAT, you shouldn't be charged again.
• Get the commodity code right. An incorrect classification can mean overpaying duty, or underpaying and facing a correction later. Use the official Trade Tariff search.
• Factor in the courier's handling fee. On a low-value parcel this fee can dwarf the actual tax. It's worth knowing your carrier's flat rate before you order.
• Keep your paperwork. If you're charged in error, or you return the goods, you can reclaim import VAT and duty, but only with the invoice and customs documentation to back the claim.

Common mistakes people make with import charges

After the lens or the trainers arrive with an unexpected bill, the same handful of misunderstandings come up again and again.

• Forgetting VAT is charged on the duty too. Import VAT is 20% of the goods value plus shipping plus the customs duty, not just the goods. That's why the VAT often outweighs the duty itself.
• Assuming shipping is duty-free. Customs value normally includes the cost of getting the goods to the UK, so a cheap item with expensive express shipping can attract more tax than you'd think.
• Treating the courier fee as a government charge. It isn't. The handling fee is the carrier's own charge for clearing customs and fronting the tax to HMRC. Different couriers charge different amounts for the same parcel.
• Believing a low declared value avoids the rules. Under-declaring the value of goods to dodge duty and VAT is illegal, and HMRC can seize the goods and issue penalties. The declared value should be the genuine price paid.
• Mixing up the £135 threshold with the total cost. The £135 line is based on the goods value, not the goods plus shipping, so a £130 item with £20 postage still sits under the threshold for duty purposes.

These figures are estimates for guidance only and not personal tax or financial advice. Duty rates depend on your goods' exact commodity code, so confirm the live rate and rules on gov.uk before you commit to a purchase.

Related calculators

Once you've estimated your import charges, these tools help with the rest of the picture. Use our VAT calculator to add or strip the 20% from a UK price, or work out the duty on a vehicle you're bringing in with the car tax calculator. If you're importing for a business, the corporation tax calculator and our profit margin calculator show how landed costs feed into your bottom line.