Customs Restrictions of Foreign Destinations – What You Cannot Take to Other Countries. Many countries have restrictions on what you can bring into that country, including food, pets, and medications. Even over-the-counter medications may be prohibited in some countries.

Customs regulations in 2026 remain strictly focused on biosecurity, public health, and prohibited substances. Items that "won't make it through" typically include fresh produce (fruits and vegetables), unprocessed meat products, and certain plants or seeds, as these can carry invasive pests or diseases that threaten local agriculture. For example, bringing a simple ham sandwich or an apple from an international flight into the U.S. or Australia can result in an on-the-spot fine of several hundred dollars. Other prohibited items include counterfeit luxury goods (if intended for resale), endangered species products (like ivory or certain leathers), and "controlled" medications without a valid prescription. Many countries have also banned the importation of specific e-cigarette flavors or high-nicotine vapes. If you are carrying more than $10,000 in cash (or equivalent), you must declare it; failure to do so can result in the seizure of the funds. When in doubt, the golden rule of international travel is "always declare it"; being honest about what you have in your bag usually results in the item just being discarded rather than you receiving a heavy fine or legal penalty.