residex.ioEvery trip accounted forResidency Rules residex.io Tracks
Every threshold the app checks, and why they are not all the same rule
“The 183-day rule” is not one rule
It is a family of them, and the differences are the part that catches people out. Some countries count a calendar year, some any rolling twelve months, some a tax year starting in April or July. Some use a threshold that is not 183 at all. The US reaches back three years and weights them; Ireland adds two years together.
Residex applies each country’s own rule rather than one global number — and counts days the way the rule counts them, which for most is the day you arrive and the day you leave, not the nights between.
Presence tests, country by country
The US Substantial Presence Test
How four months a year, every year, can make you a US tax resident
Read the guide →The Schengen 90/180 Rule
Ninety days in any rolling 180 — and why the window never resets
Read the guide →Irish Tax Residency: the 183-day and 280-day tests
Ireland looks at two years, not one — which is how a split stay slips through
Read the guide →The UK Statutory Residence Test
Where the line sits depends on your ties — and the year does not start in January
Read the guide →Thailand’s 180-Day Tax Residency Rule
The threshold is 180, not 183 — and the difference is not academic
Read the guide →Portugal’s 183-Day Rule Over Any 12 Months
A rolling window — so splitting a stay across New Year changes nothing
Read the guide →Spain’s 183-Day Rule
Sporadic absences count as days in Spain — so a weekend away does not stop the clock
Read the guide →Tax Residency in France: the 183-Day Question
Days are one of four tests, and any one of them is enough
Read the guide →Italy’s 183-Day Rule
The greater part of the year — and since 2024, physical presence counts on its own
Read the guide →Australia’s 183-Day Test
A July-to-June year, and a test that only kicks in if you do not already “reside” there
Read the guide →India’s 182-Day Rule
The threshold is 182, the year starts in April, and the count can drop to 60
Read the guide →UAE Tax Residency: the 183-Day and 90-Day Tests
A rolling twelve months, and a certificate that treaties turn on
Read the guide →Malaysia’s 182-Day Rule
Four routes to residence, and a stay that can be linked across New Year
Read the guide →Keeping a residence status
Some rules run the other way: not how many days you may spend somewhere, but how long you may stay away before a status you already hold is at risk. Residex tracks these once you record the residence in Settings.
How Long Can a Green Card Holder Stay Outside the US?
Six months draws questions, a year draws a presumption — and the days are counted continuously
Read the guide →Indefinite Leave to Remain: the Two-Year Absence Rule
Settled status in the UK lapses after two years away — and citizenship counts absences differently
Read the guide →Canada’s PR Residency Obligation: 730 Days in Five Years
A rolling five-year window, and days that can count from abroad
Read the guide →Thresholds at a glance
Where a country is not listed, Residex applies the common default: 183 days of presence in a calendar year.
| Country | Threshold | Measured over | Counting |
|---|---|---|---|
| United States | 183 weighted | This year + ⅓ of last + ⅙ of the year before | Days of presence |
| Ireland | 280 over two years | This year + last year (a year under 30 days is ignored) | Days of presence |
| Australia | 183 | Tax year from 1 July | Days of presence |
| Bulgaria | 183 | Any rolling 12 months | Days of presence |
| Estonia | 183 | Any rolling 12 months | Days of presence |
| India | 182 | Tax year from 1 April | Days of presence |
| Indonesia | 183 | Any rolling 12 months | Days of presence |
| Latvia | 183 | Any rolling 12 months | Days of presence |
| Malaysia | 182 | Calendar year | Days of presence |
| Portugal | 183 | Any rolling 12 months | Days of presence |
| Thailand | 180 | Calendar year | Days of presence |
| United Arab Emirates | 183 | Any rolling 12 months | Days of presence |
| United Kingdom | 183 | Tax year from 6 April | Midnights |
| Schengen area | 90 | Any rolling 180 days | Days of presence |
Thresholds change, and residency rarely turns on day count alone — treat this as a prompt to check, not as advice.
Status rules at a glance
| Status | The line |
|---|---|
| UK indefinite leave to remain | At risk after 730 days of continuous absence |
| US green card | At risk after 365 days of continuous absence |
| Canadian permanent residence | At least 730 days present in any 1825 days |
Thresholds change, and residency rarely turns on day count alone — treat this as a prompt to check, not as advice.
Where day counting stops
Residex is a presence tracker. It tells you where you stand against a line and warns you before you cross it. What crossing means for you — treaties, filing obligations, residency you already hold — is a different question, and the one Amanda answers.
Track it automatically
Free forever. No account required. Your data never leaves your device.
How residex.io works
residex.io tracks where you have physically been, and tells you where that puts you against each country's own residency threshold.
What it does: • Counts your days per country, and per area for the Schengen 90/180 rule • Applies each country's actual rule — 183 days for most, 180 for Thailand, the UK's 6 April tax year, Portugal's rolling twelve months, and the US weighted three-year test • Counts days the way each rule counts them, including the arrival and departure days that most tests count and a nights-based tally misses • Warns as you approach a threshold, and can notify you on the date a trip you have already planned would take you across it • Exports to CSV, or hands off to Amanda for the compliance picture
Built for digital nomads, frequent travellers, expats, and anyone whose year is split across borders.
On your device, and nowhere else. There is no account, no login, and no copy of your travel history on our servers — residex works offline because the data never needed to be anywhere else.
It leaves your device only when you decide to send it: • A backup file you save yourself • A transfer to another device, encrypted with a code only you hold — the server relaying it cannot read what it is carrying • A hand-off to Amanda, which you start
We do receive a small amount of anonymous usage information — how many trips are in a log, how old an install is, the language the app is used in, and a random identifier that is not linked to you. Never a trip, a date, a destination, or your name. It is listed in full in our Privacy Policy.
The trade-off worth knowing: because your device holds the only copy, clearing your browser data or deleting the app erases it, and we cannot restore it. Save a backup before you switch devices.
No — residex is a day counter, not a compliance engine. It flags when you cross a threshold like the 183-day rule, but turning that into specific filings, tax exposure, or reporting obligations depends on your jurisdictions and personal ties.
For that, our partner Amanda maps your full cross-border legal exposure across countries, surfaces the filings and deadlines you trigger, and turns the data residex collects into a concrete compliance picture you can hand to your accountant.
You can export your residex trips and import them straight into Amanda — the CSV formats are aligned.