{
  "publisher": {
    "name": "Provedays",
    "url": "https://provedays.com"
  },
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "attribution": "Provedays — provedays.com",
  "notice": "Rule data is licensed CC BY 4.0. Golden test fixtures, guide prose and the rule schema are not covered by this licence and remain all rights reserved. See https://provedays.com/terms/.",
  "documentation": "https://provedays.com/methodology/",
  "rule_id": "uk.srt",
  "versions": [
    {
      "rule_id": "uk.srt",
      "version": "2026.1",
      "jurisdiction": "GB",
      "title": "UK Statutory Residence Test",
      "summary": "The SRT determines UK tax residence for a tax year (6 April to 5 April). Days count when you are in the UK at midnight. Automatic overseas tests are checked first (16 days for leavers, 46 for arrivers, 91 with full-time overseas work), then automatic UK tests (183 days, UK home, full-time UK work), then the sufficient-ties test, where the ties you need shrink as your day count grows. Days you cannot leave due to exceptional circumstances are ignored up to 60 per year; after 30 'qualifying' departure days, extra same-day visits start counting for 3-tie leavers and arrivers (the deeming rule).",
      "evaluator": "uk_srt",
      "determinative": true,
      "official_source_url": "https://www.gov.uk/hmrc-internal-manuals/residence-domicile-and-remittance-basis/rdrm11000",
      "last_verified": "2026-08-28",
      "effective_from": "2013-04-06",
      "effective_to": null,
      "disclaimer_level": "standard",
      "convention": {
        "midnight_rule": true,
        "transit_excluded": true,
        "exceptional_circumstances_cap": 60
      },
      "params": {
        "reference_period": {
          "type": "tax_year",
          "start_month": 4,
          "start_day": 6
        },
        "srt": {
          "automatic_overseas": {
            "leaver_max_days": 15,
            "arriver_max_days": 45,
            "ft_overseas_max_days": 90,
            "ft_overseas_max_uk_workdays": 30
          },
          "automatic_uk": {
            "day_threshold": 183
          },
          "ties_bands": {
            "leaver": [
              {
                "min_days": 16,
                "max_days": 45,
                "ties_required": 4
              },
              {
                "min_days": 46,
                "max_days": 90,
                "ties_required": 3
              },
              {
                "min_days": 91,
                "max_days": 120,
                "ties_required": 2
              },
              {
                "min_days": 121,
                "max_days": null,
                "ties_required": 1
              }
            ],
            "arriver": [
              {
                "min_days": 46,
                "max_days": 90,
                "ties_required": 4
              },
              {
                "min_days": 91,
                "max_days": 120,
                "ties_required": 3
              },
              {
                "min_days": 121,
                "max_days": null,
                "ties_required": 2
              }
            ]
          },
          "ninety_day_tie_threshold": 90,
          "work_tie_min_workdays": 40,
          "deeming": {
            "qualifying_day_threshold": 30,
            "min_ties": 3
          },
          "exceptional_circumstances_cap": 60
        }
      },
      "attestation_defs": [
        {
          "key": "uk.srt.family_tie",
          "question": "Do you have a spouse/civil partner (not separated), partner you live with, or minor child who is UK-resident this tax year?",
          "why_we_ask": "The family tie cannot be inferred from your location history.",
          "type": "bool",
          "scope": "tax_year"
        },
        {
          "key": "uk.srt.accommodation_tie",
          "question": "Do you have a place to live in the UK available for a continuous period of 91+ days, and did you spend at least one night there (16 nights if it is a close relative's home)?",
          "why_we_ask": "Availability of accommodation is a legal test we cannot compute from presence data.",
          "type": "bool",
          "scope": "tax_year"
        },
        {
          "key": "uk.srt.work_3hr_condition",
          "question": "On the days you have labelled as UK work days, did you do more than 3 hours of work?",
          "why_we_ask": "A UK work day needs MORE than 3 hours of work. 'Work' is broad under RDR3: meetings, emails, calls, training, and work done while travelling all count; ordinary commuting does not. Only you know your hours, so labelled days count only once you confirm this.",
          "type": "bool",
          "scope": "tax_year"
        },
        {
          "key": "uk.srt.home_test",
          "question": "Did you have a UK home for 91+ consecutive days, be present in it on 30+ days, and either have no overseas home or be present in each overseas home on fewer than 30 days? (Second automatic UK test.)",
          "why_we_ask": "The second automatic UK test needs a UK home for 91+ consecutive days. If no place to live was available to you for 91+ continuous days (previous question), this test cannot be met and is skipped.",
          "type": "bool",
          "scope": "tax_year"
        },
        {
          "key": "uk.srt.ft_work_uk",
          "question": "Did you work full-time in the UK (35+ hrs/week average over any 365-day period, ≥75% of workdays in the UK, at least one workday this year in that period)?",
          "why_we_ask": "Third automatic UK test — hours and workday split are known only to you.",
          "type": "bool",
          "scope": "tax_year"
        },
        {
          "key": "uk.srt.ft_work_overseas",
          "question": "Did you work full-time overseas with no significant breaks, fewer than 31 UK workdays, and fewer than 91 UK days? (Third automatic overseas test — day limits are computed; confirm the work conditions.)",
          "why_we_ask": "Full-time overseas work makes you automatically non-resident; the hours conditions are attested.",
          "type": "bool",
          "scope": "tax_year"
        }
      ],
      "notifications": [
        {
          "at_count": 15,
          "at_fraction_of_limit": null,
          "message_key": "uk.srt.approaching_16"
        },
        {
          "at_count": 44,
          "at_fraction_of_limit": null,
          "message_key": "uk.srt.approaching_46"
        },
        {
          "at_count": 88,
          "at_fraction_of_limit": null,
          "message_key": "uk.srt.approaching_91"
        },
        {
          "at_count": 115,
          "at_fraction_of_limit": null,
          "message_key": "uk.srt.approaching_121"
        },
        {
          "at_count": 175,
          "at_fraction_of_limit": null,
          "message_key": "uk.srt.approaching_183"
        }
      ],
      "notes": [
        "Leaver ('arriver' otherwise) = UK-resident in any of the 3 prior tax years, from residence_history (seeded in onboarding).",
        "90-day tie: >90 UK midnight days in either of the 2 prior tax years (computed from ledger + residence_history seed counts when ledger does not reach back).",
        "Country tie (leavers only): UK is the country in which you were present at midnight most often this tax year.",
        "v1 scope per rkb/schema/SEMANTICS.md #18: split-year DETECTION and FIG counters are guidance-only; not computed here.",
        "Tables A/B thresholds per RDR3; automatic-overseas day maxima expressed as max_days (fewer than 16 => max 15).",
        "ask_when gates (UI relevance only): with fewer than 16 effective days the automatic overseas tests settle the year for both leavers and arrivers, so no attestation can change the outcome and none is asked; the FT-overseas question additionally disappears above 90 days where that test can no longer apply.",
        "Third automatic overseas test also requires fewer than 31 UK work days (RDR3): enforced from day labels — 31+ UK days labelled 'work' defeats the test even when attested.",
        "Exceptional-circumstances cap (60) applies PER TAX YEAR (RDR3 §5.22).",
        "Work-day labels are attributed per (date, country): on a split travel day, label each country's part separately — a UK label asserts >3h of work performed IN the UK that day."
      ]
    }
  ]
}