ILR absences and the moving executive

Three clocks, one calendar

An executive on a UK settlement route is subject to three distinct day-counting regimes. For indefinite leave to remain, Appendix Continuous Residence requires that the applicant has not been outside the UK for more than 180 days in any 12-month period during the qualifying period (CR 3.1), measured on a rolling basis, not by calendar year. For naturalisation, the British Nationality Act requires no more than 450 days' absence in the five years before the application and no more than 90 days in the final 12 months, with the applicant physically present in the UK on the day five years before the Home Office receives the application. For tax, the Statutory Residence Test counts days on which the person is present in the UK at midnight within each tax year from 6 April to 5 April, against automatic thresholds and a ties table.

The three do not reconcile. A person may be within the 180-day immigration limit (spending, say, 170 days abroad in each year) and comfortably UK tax resident, yet fail the naturalisation 450-day test by a wide margin, since 170 days a year is 850 in five. A person may keep below the tax thresholds and be nowhere near settlement. The executive who travels for the group must therefore decide which clock governs and set the travel policy to it.

How the 180-day rule actually works

The limit is 180 days in any 12-month period, and any 12-month period means exactly that: the Home Office may examine every rolling year within the qualifying period. Two absences of 100 days each, six months apart, breach the limit even though neither calendar year exceeds 180. Days of departure and arrival are generally not counted as absences, so a four-day trip from Monday to Thursday is usually two days absent, but a long-haul trip crossing date lines should be counted conservatively.

Under CR 3.4, certain absences are disregarded: assisting with an overseas humanitarian or environmental crisis (with the sponsor's agreement on sponsored routes); travel disruption from natural disaster, conflict or pandemic; compelling and compassionate circumstances such as serious illness or death of a close family member; approved research absences for Skilled Workers in listed occupations and for Global Talent applicants endorsed by the research bodies or qualifying through a prize; and accompanying a partner on Crown service. Ordinary business travel is not disregarded. The executive who spends 200 days a year visiting group affiliates has broken continuous residence under CR 4.1(e) and must start the qualifying period again from the next grant.

Dependants are tested separately. Under CR 5.1 a partner or child absent for a CR 3.4 reason while accompanying the principal is protected, but a partner who returns home for extended family reasons has their own 180-day problem. Families should keep one ledger per person.

The naturalisation test is stricter

The 450-day limit across five years allows an average of 90 days' absence a year, half the immigration allowance, and the final-year limit of 90 days is absolute in planning terms. The Home Office has discretion to overlook excess absences in limited circumstances described in its nationality guidance, for example where the applicant has established their home, family and a substantial part of their estate in the UK and the absences were for compelling reasons, but discretion is not a planning basis. An executive who wants British citizenship at the earliest date, 12 months after ILR, must have travelled lightly for the preceding five years, which usually means the final years of the settlement period and the ILR year itself.

Because the five years for naturalisation are counted back from the date the Home Office receives the application, the period usually overlaps the settlement period. A person who reaches ILR with a clean 180-day record but 600 days of absence in the last five years cannot naturalise after 12 months and must wait until the rolling five-year total falls below 450, which may take several further years of restrained travel.

Tax residence does not wait

The Statutory Residence Test produces residence at 183 UK midnights in a tax year, or earlier under the automatic UK tests (a UK home used for 30 days with no overseas home used as much, or full-time UK work), or earlier still under the sufficient-ties test. A person resident in any of the three previous tax years with four ties (family, accommodation, work, 90-day, country) is resident at 16 days; with three ties at 46 days; with two at 91 days; with one at over 120. An executive with a spouse and children in London, a UK home and UK work has three ties at least and is resident after 46 days in any year following a resident year. In practice the executive who is in the UK enough to settle is UK tax resident, and should plan on that basis; the four-year relief for foreign income and gains available to new arrivals since 6 April 2025 is the window in which overseas structures should be reviewed.

The reverse case, the executive who leaves the UK but keeps the family there, is the one where the tax clock bites hardest: the family tie and accommodation tie survive departure, and the person remains resident at low day-counts for years after leaving, while the immigration status lapses after two continuous years abroad.

A travel policy that works

WG's practice with mobile executives on a settlement route is to agree a written travel policy at the first grant, with the following elements. A single absence ledger, maintained from day one, recording each trip with departure and return dates, purpose, and any evidence that would support a CR 3.4 disregard. An annual absence budget set to the stricter of the clocks the person intends to satisfy: no more than 90 days where citizenship is the goal, no more than 150 where ILR alone is the goal and a margin is wanted, with the final 12 months before each application treated as a restricted period. A rule that group meetings that can be attended remotely are attended remotely, and that overseas board duties are rotated to other directors in the restricted periods. A quarterly review against the ledger and a review every 5 April for the tax position.

Where the group genuinely needs the executive abroad for longer, the honest options are to accept a later settlement date, to switch the person to a Global Business Mobility route that has no settlement and no absence test, or to recognise that the person's base is elsewhere and plan UK presence as visits. What does not work is the assumption that the Home Office will not count, since the eVisa and travel records make the count straightforward.

After ILR: the two-year rule

Settlement does not end the counting. Indefinite leave to remain lapses after two continuous years outside the UK (five for EU Settlement Scheme settled status), and a person who has lapsed must apply as a Returning Resident with evidence of strong UK ties and the reasons for absence. Short visits do not reliably preserve ILR where the person is plainly living elsewhere. Citizenship, once granted, does not lapse, which is why executives who expect to be posted abroad after settlement should naturalise before they go, subject to the dual-nationality position in their existing country.

In mobility-capital terms, the absence record is the ledger on which the opportunity return of a UK posting is finally booked. The knowledge and cognitive returns accrue from the work itself, wherever it takes the executive; the opportunity return, settlement and citizenship, accrues only from presence. An executive who understands that from the first day, and a group that plans around it, convert a London posting into a permanent status. Those who do not convert it into five years of UK experience and a visa that expires.