How to Fill Out CBP Form 4457 for Personal Effects Taken Abroad

To fill out CBP Form 4457, write your full legal name and U.S. address at the top, list each foreign-made item you plan to take abroad with its brand, model, and serial number, and leave the signature block blank until a CBP officer watches you sign it in person. The form is a one-page Certificate of Registration for Personal Effects Taken Abroad, it costs nothing, and once stamped it stays valid for every future trip as long as the text is still legible.

What the Form Is For

Form 4457 registers foreign-made items you already own so that when you return to the United States, a CBP officer can confirm you didn’t buy them abroad and no duty is assessed on them.¹ You don’t need it for items made in the United States, and you don’t need it for anything you can prove you bought domestically with a receipt. It fills the gap where the item is foreign-made and you have no purchase paperwork: a Swiss watch received as a gift, a Japanese camera bought secondhand, an inherited German rifle.

Which Items Qualify

Only articles with a serial number or other permanently affixed unique marking can be registered. The officer needs something concrete on the item that matches what you wrote on the form.² Cameras, lenses, laptops, watches with engraved case-back numbers, and firearms are the typical entries. An item with no serial number and no permanent identifying mark cannot go on this form.

Filling In the Owner Blocks

Download the PDF from the CBP website or pick up a blank at any CBP office.³ You are responsible for four blocks:

Name of Owner: your full legal name as it appears on your passport.
Address of Owner: your home address in the United States.
Description of Articles: each item with enough detail for an officer to identify it, meaning brand, model, and serial number. For example, “Nikon Z9 Camera Body, S/N 2001234” or “Rolex Submariner, Case S/N 7X892456.”
Signature of Owner: sign only in front of the CBP officer during verification, not at home.

The grayed-out blocks are for the officer’s certifying signature, date, and port information.¹ Leave them blank. Fill out only the original; no copies are needed. Be specific in the description column. A vague entry like “laptop computer” gives an officer nothing to verify, while “Apple MacBook Pro 16-inch, S/N C02FG1234567” takes seconds.

Getting the Form Certified

Certification happens in person at a CBP office, usually at international airports, seaports, or land border crossings. The port locator at cbp.gov/contact/ports lists locations. Bring the completed form and every item on it. The officer physically inspects each one and confirms the serial numbers match what you wrote.⁴

Once satisfied, the officer has you sign, countersigns the form, and draws lines through any unused description rows so nothing can be added later.² You walk out with the stamped original. No fee.

Go a day or two before your flight, not the morning of. Busy airport offices have unpredictable waits, and there is no appointment system for Form 4457. If the form doesn’t adequately cover what you need to register, such as bulk professional equipment, the officer may use CBP Form 4455 instead.²

Firearms and Ammunition

Personal firearms taken abroad temporarily are documented on Form 4457 under an export-control provision called License Exception BAG. U.S. citizens and lawful permanent residents can take firearms abroad for personal use without a separate export license, subject to per-trip caps:⁵

No more than three firearms total, including shotguns with barrels 18 inches or longer and firearms controlled under ECCN 0A501.
No more than 1,000 rounds of ammunition controlled under ECCN 0A505.a.

Declare the firearms and ammunition to a CBP officer before departure and present them for inspection along with the completed form. All firearms and unused ammunition exported under this exception must come back to the United States; permanent export requires a separate license.⁶

Form 4457 only covers your re-entry into the United States. It is not an import permit for the country you are visiting. Many countries require advance permits to bring in firearms, and arriving with only a U.S. customs form can lead to confiscation or criminal charges. Check the destination’s requirements separately.

Using the Stamped Form on the Way Home

At customs on your return, hand the stamped Form 4457 to the inspecting officer along with your declaration. The certificate confirms the listed items were already yours before you left, so they are not counted against your $800 personal duty-free exemption and no duty is charged on them.⁷ Without the certificate or other proof of prior ownership, an officer can treat a foreign-made item as if you bought it abroad and assess duty.

Keep the original somewhere safe but reachable, like a travel document organizer or the front pocket of a carry-on. It works for every future trip as long as it stays legible.¹

One rule applies whether or not you registered the item: foreign repairs or alterations are dutiable. If a watch is serviced or a camera repaired overseas, declare that work at customs even if it was done for free.⁴ The registration protects the item’s value from duty; it does not exempt the cost of repair work.

When You Can Skip the Form

Form 4457 is optional. The form’s own instructions describe it as available “strictly at your option, in lieu of or in addition to bills of sale, appraisals, and/or repair receipts.”⁴ A purchase receipt, credit card statement, insurance appraisal, or repair invoice showing U.S. ownership before the trip works just as well at the customs booth. The form earns its keep when no such paperwork exists, which is why gifts, inherited items, and older secondhand purchases are the usual reasons to fill one out.

1
U.S. Customs and Border Protection. Registration for Dutiable Personal Articles Prior to U.S. Departure
2
eCFR. 19 CFR 148.1 – Registration of Effects To Be Taken Abroad
3
U.S. Customs and Border Protection. CBP Form 4457 – Certificate of Registration for Personal Effects Taken Abroad
4
U.S. Customs and Border Protection. CBP Form 4457 – Certificate of Registration for Personal Effects Taken Abroad
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U.S. Customs and Border Protection. Temporarily Taking a Firearm or Ammunition Outside the United States for Personal Reasons
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GovInfo. 15 CFR 740.14 – License Exception BAG
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eCFR. 19 CFR Part 148 – Personal Declarations and Exemptions