USE CASE · TAX RESIDENCY
Tax residency, monitored day by day.
The 183-day rule is only the start. Every jurisdiction has its own residency triggers, exit tests, and tie-breaker rules. Heed counts the days, watches the thresholds, and warns you before you cross a line you didn't mean to cross.
- Trips noted in a phone appScattered
- Portugal this yearAbout 150?
- No warning before you cross a line, and no word when the line moves.
With Heed
- Portugal, 155 of 183 days28 to go
- Spain, 18 of 183 daysClear
- Matched changeIn forceUK replaces the remittance basis with a 4-year foreign income and gains regime for new residents
An example. The rules and changes in it are real ones from Heed's data.
The problem
Where it goes wrong.
- 01
Residency rules differ in every jurisdiction. Days, ties, intent, domicile, and exit tests all matter, and most people only learn the rule after they trigger it.
- 02
Spreadsheets do not warn you. By the time you total the year, you are already resident or already non-compliant.
- 03
Cross-border lives stack risks. UK Statutory Residence Test, US substantial-presence test, Schengen 90/180, Italian 183. One calendar, many traps.
How Heed solves it
Three tools, one decision layer.
Log presence by day. Track the threshold for every country you touch. Get warned 28 days before the line in Avoid mode, and at 50%, 85% and 100% of a goal in Establish mode.
Open the trackerJurisdictions at a glance
Residency thresholds, the headline numbers.
A snapshot for orientation. Each country's full rules, with their official sources, live in its tax guide and in your dashboard.
- 183United KingdomStatutory Residence Test. 183 days, plus automatic and ties tests.
- 183United StatesSubstantial Presence Test. 183-day weighted formula across 3 years.
- 183United Arab Emirates183 days; 90 days if you hold a UAE residence permit and have a UAE home or job/business.
- 183PortugalMore than 183 days in a 12-month period, or a dwelling kept as your habitual residence on any day of it.
- 180ThailandMore than 180 days in a calendar year triggers tax residency.
- 183Italy183 days, or registered residence, or centre of vital interests.
- 183Singapore183 days in a calendar year, or 3 consecutive years of presence.
- ·MonacoResidency by physical presence + property + visa. No personal income tax, except for French nationals.
Questions
Common questions.
Straight answers. Heed is intelligence, not advice.
No. 183 days is a common reference point but every jurisdiction layers it with additional tests: ties, intent, registered residence, centre of vital interests, or domicile. Some count calendar years, some count rolling 12-month windows. Heed tracks the actual rule for each of the jurisdictions we cover.
You log your days by hand, check in each day with one tap, or let Heed count every day while you stay in one country. Heed then runs the count against the rule for each jurisdiction you touch and alerts you as you approach thresholds. Heed reads your device's country only when you tap Use location, and keeps only the country and date. Otherwise you decide what gets logged.
Heed counts your UK days the way the test does: by UK tax year from 6 April, with the midnight rule, and warns you as you near the day limits of the automatic tests. The sufficient ties test also weighs your family, home, work and earlier years in the UK, which Heed does not decide for you, so confirm those with your adviser.
Yes. The Advisor tier lets you track residency for every client in your firm, with white-label alerts that go out under your own branding.
Keep reading
Related use cases.
Stop guessing. Start monitoring.
One profile, several countries watched, and an alert when something that affects you actually changes.