Do I pay customs duty on a watch serviced abroad?

A US resident who sends a watch to Switzerland or Japan for a service owes US duty when it comes back. The law does not tax the watch, which was yours before it left. It taxes the work done on it. How much depends on how the watch crosses the border on the way home, and on the tariff in force on Swiss and Japanese goods since July 2026.

What "duty on the repair" means

Customs duty is the tax the US charges on goods as they enter the country. Most goods pay it on their full value. Goods that left the US and come back have their own rules, in chapter 98 of the Harmonized Tariff Schedule of the United States (HTSUS), the list of every import category and its rate.

Two lines in that chapter cover a watch sent abroad to be fixed. Both describe "articles exported for repairs or alterations". 9802.00.40 covers "repairs or alterations made pursuant to a warranty". 9802.00.50 covers all other repairs, which includes a routine service you pay for. For both, the rate column says the same thing: "A duty upon the value of the repairs or alterations". In plain words, you pay duty on the work, and the watch itself comes back free.

A service counts as a repair. The movement is taken apart, cleaned, oiled and rebuilt with worn parts swapped, as our guide to watch servicing and care describes. CBP's rule for travelers says repairs "including cleaning" are dutiable (19 CFR 148.31(b)).

The value: what you paid, or what the work was worth

US note 3(a) to subchapter II of chapter 98 sets the value. It is "the cost to the importer" of the work. If there was no charge, it is "the value of such change". Either figure is "as set out in the invoice and entry papers". If CBP thinks the figure is not "a reasonable cost or value", it can set its own under the normal valuation law.

So a free repair is not a zero. Suppose a brand fixes a fault under warranty and charges nothing. The work still has a value, and the repairer's declaration has to state it. The form of that declaration in 19 CFR 10.8 has a column headed "Full cost or (when no charge is made) value of repairs or alterations".

Parts count too. 10.8(d) says the value "will include all domestic and foreign articles furnished for the repairs". Costs incurred in the US, such as tools or "engineering costs", do not.

The rate: the watch's own rate, as a percentage

Note 3(c) sets the rate. Duty on the work is charged "at the rate which would apply to the article itself". The article is the watch, "as an entirety", in the state it comes back in.

Watches do not have a simple rate. A steel automatic on a steel bracelet pays $1.53 each, plus 4.2 percent of the case value, plus 9.8 percent of the bracelet value. That kind of rate is called a compound rate. Our answer on duty on a watch bought abroad sets out the rates for other cases and straps. A compound rate cannot be applied to a repair bill directly, so note 3(c) says to convert it. You work out the duty the whole watch would pay. You turn that into a percentage of the watch's full value. Then you apply that percentage to the repair.

CBP did exactly this for Tiffany & Co. in ruling H288749, dated 1 December 2017. A Swiss watch on a base metal bracelet was entered at $5,003.00: movement $2,501.50, case $2,001.20, strap $500.30. Its duty was $134.61: $1.53, plus $84.05 on the case, plus $49.03 on the strap. That is "approximately 2.7%" of $5,003.00. The movement was then repaired in Switzerland for $360.00. At 2.7 percent, the duty on the repair was $9.72. CBP held that the same 2.7 percent applied under 9802.00.40 or 9802.00.50, warranty or not.

So the ordinary duty on a service is small: a few percent on a steel watch, nothing on a gold one, whose own rate is free. That was the whole story until July 2026.

The Section 301 duty since 24 July 2026

Section 301 of the Trade Act of 1974 lets the US Trade Representative put extra duty on another economy's goods. USTR's notice in the Federal Register of 28 July 2026, document 2026-15181, applies to goods entered from 12:01 a.m. eastern time on 24 July 2026. For Switzerland and Japan it is a top-up. Where a product's ordinary (MFN) rate is under 12.5 percent, the Section 301 duty makes "the sum of the MFN tariff and the tariff imposed" equal 12.5 percent.

The notice adds US note 52 to chapter 99 of the tariff schedule. Goods properly entered under chapter 98 are spared, with four exceptions, and 9802.00.40 and 9802.00.50 are two of them. For those, "the additional duties apply to the value of repairs, alterations or processing performed".

Read with note 3(c), that means a shipped repair from Switzerland or Japan pays 12.5 percent of the repair value in total. That is our reading. The watch's own rate, such as 2.7 percent, is the ordinary part, and Section 301 adds the rest, such as 9.8 percent. The split varies by watch; the total does not, as long as the watch's own rate is under 12.5 percent, as it is for every steel or gold automatic in our duty answer's table.

Shipped back or carried back

Note 52(a) has one more exclusion, and it decides most travelers' bills. The Section 301 duty covers products of Switzerland and Japan "other than products for personal use included in accompanied baggage of persons arriving in the United States". Accompanied baggage means things that arrive with you, in your bags or on your wrist, not in a parcel.

A watch carried home also falls under a different rule. 19 CFR 148.31(b) covers a traveler's own things that were "repaired" while abroad. The cost of the repairs "is subject to duty unless all or part of such cost or value is covered by an allowance of the $800" exemption. That exemption needs at least 48 hours abroad and no use of it in the past 30 days. It is also shared with anything else you bought, and it goes first to the goods with the highest rate (148.33(b)).

So carried, the first $800 of the bill can be free, and on our reading no Section 301 duty applies. Shipped, there is no $800 exemption, which covers only goods that accompany you (148.33(a)), and the Section 301 duty applies.

For a carried bill above $800, 148.31(b) does not name the rate on the rest. It could be the watch's own rate, as in note 3(c), or the 3 percent flat rate that 148.101 sets on up to $1,000 of a traveler's personal goods. We found no rule that picks between them, and on a steel watch they are close.

Worked example: a $1,200 Omega service in Bienne

Take a US resident who owns a steel Omega Seamaster 300M on a steel bracelet. Suppose it goes to Omega in Biel/Bienne, Switzerland, for a full service that is not under warranty. Suppose the bill is $1,200, which sits at the top of the $800 to $1,200 range in our answer on what a watch service costs. And suppose the watch's value splits the way the Tiffany watch did, so its own rate converts to the same 2.7 percent. This is a walkthrough of the rules above, not a record of a real entry.

Route 1: shipped there and back.

1. Papers. The owner keeps the outbound airway bill. The service center signs the repairer's declaration for $1,200, and the owner signs the owner's declaration (both set out below).
2. Entry. The watch comes in under 9802.00.50, since the service was not a warranty job.
3. Ordinary duty. 2.7 percent of $1,200 is $32.40.
4. Section 301 duty. The top-up to 12.5 percent is 9.8 percent of $1,200, which is $117.60.
5. Total. $150.00, which is 12.5 percent of the bill. If the watch's own rate came out at 2 percent or 4 percent instead, the split would move, and the total would still be $150.

Route 2: carried there and back. Now suppose the owner takes the watch on a two-week trip, has it serviced in Bienne, and flies home wearing it. Nothing else was bought, and the exemption has not been used in the past 30 days.

1. At the airport. The owner declares the $1,200 service, with the invoice in hand.
2. The first $800. Covered by the returning-resident exemption under 148.31(b). Duty $0.
3. The other $400. At the watch's own 2.7 percent, $10.80. At the 3 percent flat rate, $12.00.
4. Section 301 duty. None on our reading, because the watch is in accompanied baggage for personal use.
5. Total. $10.80 to $12.00.

The gap is about $138 on one service. On a gold watch, shipped is still $150, all of it Section 301 duty; carried falls to between $0 and $12.

The papers CBP asks for

Duty on the repair alone has to be claimed. 19 CFR 10.8 lists what to file.

1. A declaration from the repairer. It names the work and its full cost or value. It says the watch came in "for the sole purpose of being repaired or altered" and that "no substitution whatever has been made".
2. A declaration from the owner. It confirms the repairer's statement and gives the port and date the watch left. It says the watch coming in is the same one that went out.
3. Proof it left, if asked. Under 10.8(b), CBP "may require" more, "such as a foreign customs entry, foreign customs invoice, foreign landing certificate, bill of lading, or an airway bill".

CBP can also go the other way. Under 10.8(c), if it is satisfied "because of the nature of the articles or production of other evidence", it "may waive" the two declarations. Either way, 10.8(d) says CBP takes a deposit of estimated duty "based upon the full cost or value of the repairs".

CBP Form 4455 is the registration form for this. It has a box for articles exported for "Repair" and cites 19 CFR 10.8. A printed note says: "The cost or value of alterations, repairs, or processing abroad is subject to CBP duty." A CBP officer examines the watch and signs before it leaves. For a watch you travel with, the usual form is Form 4457, covered in our answer on registering a watch with CBP before traveling.

Why two answers circulate

"It's your watch, you pay nothing" comes from the rule that a returning resident's own things come home free (148.31(a)). That is true of the watch. It is not true of the work, which 148.31(b) and 9802 both tax, and which Form 4455 says in print is dutiable.

"You pay duty on the whole watch again" comes from note 2(a) of the same subchapter. It treats a returned article "advanced in value or improved in condition abroad" as foreign and dutiable on its full value, "except as otherwise prescribed". The 9802 lines are that exception, and 10.8 says how to prove it.

The rules settle it. With its papers in order, a watch pays on the repair bill, at its own rate, plus the Section 301 top-up if shipped.

What to do before you send a watch abroad

1. Check whether the work can be done in the US. A service done at home involves no import at all. Most large brands honor their international warranty at service centers worldwide, as our guide to warranties and consumer rights explains, and how often a mechanical watch needs a service tells you whether it is due.
2. Keep proof it left. Keep the airway bill, or register the watch on Form 4455 before it goes.
3. Ask the repairer for the 10.8 declaration. It needs the cost or value of the work and the no-substitution line. Ask for a stated value even on a free warranty job, since what a warranty covers does not change what customs taxes.
4. Insure it both ways. Our answer on insuring a watch covers what a policy needs to show.

When this answer stops applying

• "Our reading" is ours. The 12.5 percent on a shipped repair and the baggage exclusion on a carried one are our reading of notes 52(a) and 3(c). We found no CBP ruling or guidance applying the July 2026 notice to a repaired watch.
• Watches made elsewhere. The notice taxes "products of" each economy, so the watch's origin sets the rate, not the repair shop. Our answer on what "Japan Movt" means explains how customs decides origin. Swiss and Japanese watches share the 12.5 percent rate; others may not.
• Canada and Mexico. Note 3(d) gives special rates to goods repaired in Canada or Mexico, and the Special column lists them as free under symbol S. We did not work through how the July 2026 notice treats those repairs.
• A replacement is not a repair. If the brand swaps your watch for a new one, the repairer cannot sign the no-substitution line. We did not work out the duty on a replacement.
• The watch was bought abroad on the same trip. Then the watch itself is an acquisition, covered in our answer on duty on a watch bought abroad.
• Fees and taxes outside duty. We did not cover courier charges, broker fees, customs processing fees or state sales tax.
• Rates change. These figures are as of 13 November 2026.