01The rules in detail
Security may ask about large cash amounts but cannot confiscate for size alone in most jurisdictions. Customs is the issue: the US, EU, UK and most countries require a declaration for currency and monetary instruments over the local threshold; undeclared cash can be seized. Some countries restrict export of their own currency (India, Morocco, Tunisia). Split cash between bags and people, and keep it on you.
02Tips
- Declare over the threshold — the form is simple, seizure is not.
- Use a money belt or inside pocket, never the checked bag.
03Frequently asked
Can I bring large amounts of cash in my carry-on?
Yes. There is no aviation limit on cash, but you must declare amounts over $10,000 (or €10,000) when entering or leaving most countries. Carry it in the cabin — checked bags get lost and searched.
Can I pack large amounts of cash in checked luggage?
Yes. There is no aviation limit on cash, but you must declare amounts over $10,000 (or €10,000) when entering or leaving most countries. Carry it in the cabin — checked bags get lost and searched.
Are the rules the same outside the US?
Mostly similar for liquids and batteries, which follow international standards, but sharp objects, tools, lighters and self-defense items vary widely by country. Check the departure airport's rules and the destination's laws.
TSA and other agencies allow officers to refuse any item they judge unsafe, and rules change. This page summarises published guidance as of the verified date; confirm on tsa.gov or your airport's site before packing anything unusual.