Do I have to declare e-cigarette nicotine liquid at United States customs?

Only above the allowance. Up to 100 milliliters of e-cigarette nicotine liquid there is nothing to declare; beyond it you take the goods through the red channel and pay the duty.

What happens if I do not declare e-cigarette nicotine liquid in United States?

Under 19 CFR 148.26, if you declare the excess yourself: the normal duty becomes payable on the excess.

Do duty-free purchases count toward the United States allowance for e-cigarette nicotine liquid?

Yes. What you buy in an arrival duty-free shop comes out of the same allowance, so the shop does not add to what you may already be carrying.

Can I post or ship e-cigarette nicotine liquid to United States instead of carrying it?

Not under this allowance. It covers goods a traveller carries; a parcel is an import and is assessed under the postal rules instead. Baggage sent before or after you travels under the same allowance.

Can I take e-cigarette nicotine liquid out of United States?

United States publishes no separate rule for taking e-cigarette nicotine liquid out; the destination's rules are what will apply.

Does the United States limit for e-cigarette nicotine liquid apply per person or per family?

Per person. Each traveller carries their own allowance and it cannot be pooled with anyone else's.

Where does this rule come from?

U.S. Customs and Border Protection states it in Liquids, Aerosols, and Gels Rule. CarryRules last confirmed that sentence at the source on 2026-09-19.

How does United States compare with other countries on e-cigarette nicotine liquid?

Of the 20 countries covered here, 3 prohibit e-cigarette nicotine liquid, 11 limit it and 6 let it through. United States is among the ones that set a limit.

How much E-cigarette nicotine liquid can I bring into United States?

Restricted

You can bring E-cigarette nicotine liquid into United States only within the stated limits.

Cabin baggage —

Checked baggage —

Declaration Above allowance

Limit 100 milliliter

What you need to know

100 milliliter (3.38 fl oz)
Channels: Carried with the traveler

Important

This allowance applies per person, not per family or group.

Official sources

Last verified 2026-09-19

Liquids, Aerosols, and Gels Rule Transportation Security Administration

Questions about E-cigarette nicotine liquid in United States

How much e-cigarette nicotine liquid can I bring into United States?: United States allows 100 milliliters of e-cigarette nicotine liquid per traveller. Above that the goods are treated as an import and duty becomes payable. The allowance is per traveller and cannot be pooled between people.
Do I have to declare e-cigarette nicotine liquid at United States customs?: Only above the allowance. Up to 100 milliliters of e-cigarette nicotine liquid there is nothing to declare; beyond it you take the goods through the red channel and pay the duty.
What happens if I do not declare e-cigarette nicotine liquid in United States?: Under 19 CFR 148.26, if you declare the excess yourself: the normal duty becomes payable on the excess.
Do duty-free purchases count toward the United States allowance for e-cigarette nicotine liquid?: Yes. What you buy in an arrival duty-free shop comes out of the same allowance, so the shop does not add to what you may already be carrying.
Can I post or ship e-cigarette nicotine liquid to United States instead of carrying it?: Not under this allowance. It covers goods a traveller carries; a parcel is an import and is assessed under the postal rules instead. Baggage sent before or after you travels under the same allowance.
Can I take e-cigarette nicotine liquid out of United States?: United States publishes no separate rule for taking e-cigarette nicotine liquid out; the destination's rules are what will apply.
Does the United States limit for e-cigarette nicotine liquid apply per person or per family?: Per person. Each traveller carries their own allowance and it cannot be pooled with anyone else's.
Where does this rule come from?: U.S. Customs and Border Protection states it in Liquids, Aerosols, and Gels Rule. CarryRules last confirmed that sentence at the source on 2026-09-19.
How does United States compare with other countries on e-cigarette nicotine liquid?: Of the 20 countries covered here, 3 prohibit e-cigarette nicotine liquid, 11 limit it and 6 let it through. United States is among the ones that set a limit.

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