Sooner or later, a form will ask exactly when you entered and left a country — and expect you to know.
The forms that assume you kept track
Immigration and tax paperwork rarely asks how long you were roughly away. It asks for dates. A naturalisation application may want every trip you took outside the country over several years; a residence-permit renewal may check the days you were physically present; a tax office deciding your residency counts days on each side of a threshold. Requirements vary by country and change, so always read the official guidance for your own case — but the pattern holds: authorities want a precise, dated record, and they can cross-check what you write against their border data. Our piece on why citizenship forms ask for every trip abroad shows how detailed these questionnaires get.
Most people fill them in from memory. That is where the trouble starts.
Passport stamps were never a ledger
The traditional fallback — leafing through passport stamps — is losing ground. Stamps smudge, get skipped at automated e-gates, and were never applied at open internal Schengen borders. And from 10 April 2026 the EU's Entry/Exit System (EES) is fully operational, replacing passport stamps for non-EU short-stay travellers with a digital record of each entry and exit (European Commission). That record is more accurate than ink — but it lives in a government system, not in your pocket. (For how it works, see EES explained.)
What you can request from the authorities
Several countries let you ask for your own crossing records. After the fact, this is the most authoritative source you can get — and it is often free — but it takes time and rarely covers everything.
| Country | What to request | Reach | Turnaround |
|---|---|---|---|
| United States | Travel history on the CBP I-94 site | Commonly ~5 years online | Instant online |
| Canada | CBSA Travel History Report | 15-year retention | Up to 30 days |
| United Kingdom | Home Office information request | Digital records since 2000 | About 1 month |
In the United States, the CBP I-94 website lets many nonimmigrant travellers view their recent arrival and departure history online — commonly around the last five years — with older records needing a formal request to CBP. Canada's Travel History Report is a free service under the Privacy Act, has a 15-year retention period, and can take up to 30 days. In the United Kingdom, you can ask the Home Office for the borders and immigration information it holds about you; it aims to respond within one month, covering digital records held since 2000.
Mind the gaps
Official records are authoritative, but not complete. CBP notes that some crossings may not appear online — most land-border arrivals and departures, for instance. Exit data also has start dates: Canada only began collecting exit information on all travellers in the land mode from 11 July 2019 (and commercial air from 25 June 2020), so earlier departures may be blank. UK records cover some ports but not all. A request can therefore return a partial picture — and you may not discover what is missing until a deadline is close.
Rebuild from the traces you left
When the official file falls short, reconstruct from what you already have:
- Boarding passes and airline or booking confirmation emails — search your inbox by airport code or "boarding pass".
- Card and bank statements: a coffee bought in Lisbon on a given day is quiet evidence you were there.
- Photo metadata and map timelines, which often carry a date and place.
- Calendars, messages, and accommodation receipts.
Cross-check these against any official record; where two independent sources agree, you have a defensible entry. Because the burden of proof usually rests with you — see who has to prove where you were — that corroboration is what carries weight.
The quiet alternative: keep the record as you go
Every method above is a reconstruction: slow, partial, and done under pressure. A contemporaneous record avoids all of it — dates captured as they happen, not guessed years later. That is the idea behind Countly. It counts the days you spend in each country automatically and on your phone — no account, no analytics — so when a form, a border officer or a tax office asks exactly when you were where, the answer is already in your pocket, and it lines up with the record they hold.
This article is general information, not legal or tax advice; rules vary by country and change, so check the official sources above for your situation.