The usual US customs alcohol allowance is 1 litre per eligible traveller aged 21 or over, but that is a duty-free concession, not a universal maximum you are permitted to import. State rules, origin restrictions and the nature of the import still matter. CBP alcohol guidance
This guide covers alcohol accompanying a traveller into the United States for personal use. It uses official sources checked on 24 September 2026. Mailed purchases, commercial imports and special territorial allowances need separate checks.
Answer three questions before buying
Ask these in order:
- Is this alcohol admissible for this traveller and route?
- How much qualifies for the applicable duty-free concession?
- Will the airline and airport accept the packed bottles?
An answer to one question does not settle the other two. A bottle can fit an airline’s baggage rule yet exceed your customs concession. Paying duty also cannot make a prohibited product admissible.
CBP’s general guidance excludes alcohol imports by travellers under 21, including gifts, and notes that some Caribbean and US Virgin Islands journeys have different concessions. Do not extend the standard 1 litre figure to every itinerary. CBP traveller eligibility and exceptions
If you are a returning resident, check your personal-exemption eligibility as well as the alcohol quantity. CBP describes the litre as part of that exemption, provided you are at least 21, the alcohol is exclusively for personal use rather than sale, and it complies with the arrival state’s law. CBP customs duty information
Count litres, including beer and wine
Make a single bottle inventory containing volume, strength, purchase price and country of production. Do not assume that “one bottle” means one litre or that wine receives a separate automatic allowance.
For a traveller whose applicable concession is 1 litre:
- One 750 mL bottle totals 0.75 litres.
- Two 750 mL bottles total 1.5 litres, exceeding it by 0.5 litres.
- One 700 mL spirit and one 330 mL beer total 1.03 litres, exceeding it by 30 mL.
- Four 250 mL bottles total exactly 1 litre.
These calculations determine whether the volume fits; they do not establish eligibility or the amount of tax. Keep the exact label sizes rather than rounding a beer bottle down to a convenient fraction.
The US bottle-count reference is a quick companion while shopping. Use the general US alcohol reference when checking broader destination scope.
More than a litre can mean tax, not automatic refusal
CBP does not specify a general federal quantity ceiling for personal imports beyond the exemption. However, unusual quantities can raise commercial-import questions, and arrival-state law may impose limits or licensing requirements. CBP quantity and state-law guidance
TTB advises discussing substantial quantities with the entry port beforehand. Repeated imports can also affect whether CBP considers them personal. State and local taxes may apply even to personal imports. TTB personal importation guidance
For a wine collection or several cases, send the port a precise inventory and explain the purpose before travel. Also contact the relevant state alcohol authority. “For personal use” written on your own list is not advance approval.
Avoid planning around someone else’s experience of not being charged. Your products, route and circumstances may differ, and this guide does not promise a collection threshold or fixed tax rate.
Check production origin and intended gifts
Country of purchase and country of production can differ. TTB lists prohibitions affecting Cuban-origin and Russian-origin alcoholic beverages. Buying a bottle in a third country does not change where it was made. TTB alcohol FAQs, G11 and G12
For gifts, TTB’s guidance requires the US government health-warning statement on containers being given away. It also treats promotional gifts connected with orders or sales as commercial activity. Check that guidance before assuming all gifts fall neatly within ordinary personal travel. TTB gift conditions
When checking a special bottle, photograph both the front and back labels. That helps you identify its origin, volume, strength and labeling without unpacking the suitcase each time you ask a question.
Apply the flight rule separately
FAA guidance allows drinks above 24% and no more than 70% ABV only in unopened retail packaging, with a 5 litre total per passenger and no package exceeding 5 litres. Cabin liquids face additional security restrictions. FAA PackSafe alcohol guidance
That 5 litre aviation figure is not a 5 litre customs exemption. Ask your carrier about the whole route, including connecting flights, and protect glass bottles individually against contact and movement.
Prepare for the customs conversation
Keep one short list instead of several disconnected receipts. Include:
- Every alcoholic drink and its exact volume.
- ABV and production origin from the label.
- Purchase value and receipt reference.
- Personal-use or gift purpose.
- Any response obtained from the entry port or state authority.
For returning residents, CBP’s customs-duty guidance requires declaring purchases acquired abroad, including gifts. Do not treat being within the alcohol concession as permission to omit purchases. Declare excess alcohol and answer customs questions about the complete purchase accurately. The official CBP declaration guidance identifies alcohol over the concession as declarable.
Does buying duty free increase the allowance?
No. The shop’s tax treatment does not create another US concession. Include airport purchases in the same inventory and reassess the final total before arrival.
Can an unused shopping-value exemption cover extra wine?
Not automatically. CBP distinguishes the alcohol quantity concession from the overall personal-exemption value. A low purchase price is not a substitute for checking the alcohol quantity and any tax due.