ExploEntry rules
The six-month passport rule explained
Many countries want months of validity left on your passport. Learn what the six-month rule means, how the months are counted and when to renew.
You have a flight booked, the destination is visa-free for your passport, and everything looks fine. Then a line in the entry rules says your passport must be valid for six months. Yours expires in four.
This is the most common reason travellers are stopped at check-in with an otherwise valid passport. Here is what the rule means, how the months are counted and how to avoid being caught by it.
What the rule actually says
There is no worldwide standard. Each country sets its own validity condition, and they fall into three broad patterns:
| Pattern | What it means | Where you find it |
|---|---|---|
| Six months | Your passport must be valid for six months after the day you enter, or in some countries after the day you leave | A number of countries in Asia, the Middle East and Africa. Thailand and Indonesia are commonly listed |
| Three months after departure | The passport must be valid for at least three months beyond the day you plan to leave, and issued within the last ten years | The Schengen Area |
| Length of stay | The passport only has to be valid for as long as you are there | The United Kingdom, among others |
These examples reflect published rules at the time of writing. Countries change them, so confirm the current wording before you rely on it, as described in how to check visa requirements before you book.
How the months are counted
The wording matters. "Six months from arrival" and "six months from departure" give different expiry dates, and the safe habit is to plan for whichever is later.
Say you fly out on 1 June and return on 15 June. Six months from arrival means your passport must be valid until at least 1 December. Six months from departure means at least 15 December. If your passport expires on 10 December, it passes the first test and fails the second.
When the rule is unclear, count from your return date. It is the stricter reading, and it keeps you safe under both.
Other passport conditions to check
Validity is not the only thing on the page. Look for these at the same time:
- Issue date. The Schengen Area asks for a passport issued within the last ten years. Some older passports carried extra months over from a previous one, so the expiry date can look longer than the issue date allows.
- Blank pages. Some countries ask for one or two empty pages for stamps or visas.
- Condition. A passport with a damaged cover, a loose page or water damage can be refused, even when the dates are fine.
- Name and details. The name on your tickets and travel authorisations must match the passport exactly.
What happens if you get it wrong
The first check usually comes at check-in. Airlines can be fined for carrying passengers who are refused at the destination, so they apply the rule strictly. If your passport does not meet it, you may be denied boarding and have to rebook.
If you do get through and the border officer disagrees, you can be refused entry and sent back on the next flight, often at your own cost. Travel insurance rarely covers a trip that fails because of your own documents. Either way, it is far cheaper to check a date at home than to find out at the airport.
When to renew
Passport processing times vary from days to several months, and they get longer in busy seasons. A practical rule for regular travellers is to start renewing when about nine months remain. That leaves room for processing, a sudden trip and the strictest six-month rule.
Renewing early is rarely a waste. In many countries the unused months are not credited to the new passport, so you lose a little validity, but you also avoid the risk of a rushed renewal. Look at your own passport office's guidance, because the details differ.
A one-minute check
- Find the expiry date on your passport photo page.
- Add the validity the destination asks for to your return date.
- If your expiry date is earlier, renew before you book, or choose another destination.
- Check the issue date if you are going to the Schengen Area.
- Count the empty pages.
Put the check at the start of your routine. It sits at the top of our international trip checklist for a reason: a problem found three months out can be fixed, and the same problem found at the airport cannot.
What Explo shows
Explo shows the entry rule for your passport and the days you may stay in each country. It does not include passport validity requirements, because the open dataset behind it does not cover them. Our passport validity checker covers the common rules for some destinations and tests your dates against the usual three-month and six-month rules for the rest. Use the app to shortlist places, then confirm validity with the official immigration source for each one. The guide to visa-free, visa on arrival, eTA and e-visa explains the rules the app does show.
