The 10-Year Passport Rule
If your UK passport was issued after 2018, it's valid for exactly 10 years, so you won't encounter any issues. However, passports issued before 2018 may be valid for up to 10 years and nine months. This is because the UK passport office added up to nine additional months from your previous passport to your new one. Post-Brexit, EU countries no longer accept the extra months beyond the 10-year period. Therefore, you should ignore your passport's expiry date and simply add 10 years to your issue date, which represents the date you can enter the EU until. Additionally, ensure that your passport remains valid for at least three months after the day you plan to leave the EU.
This means your travel document must have been issued within the previous 10 years the day you enter the EU on condition that it is valid until the end of your stay plus an additional 3 months.
For example, if your passport has an issue date of May 1st, 2015, and an expiry date of December 1st, 2025, you must disregard the expiry date. You'll only be permitted to enter the EU as long as you leave again by February 1st, 2025 (9 years and 9 months from the May 1st 2015 issue date as your passport have at least three months of validity remaining when you return to the UK).
Only The EU, Not the USA
This not does apply to the USA if you're planning a Walt Disney World trip. This is only for travel into the EU, which includes France and Disneyland Paris.
You Will Be Denied Without Refund
If on the day of your trip you try to travel past the 10-year period from your issue date, you will be denied boarding or entry if you've driven, and you will not be refunded you nor will you be able to claim on any travel insurance as it will be deemed your fault.
