UK SRT Work Tie: Why 3-Hour UK Workdays Matter

Checked against HMRC and GOV.UK sources on July 11, 2026.

For the UK Statutory Residence Test, a UK day can matter even when the question reaches beyond where you slept.

HMRC's work-tie manual says an individual has a work tie for a tax year if they do more than 3 hours of work a day in the UK for at least 40 days in that year. HMRC also says those days do not have to be continuous.

Short answer: if you work during UK visits, track work context as well as presence. The work tie does not by itself decide UK tax residence, but it can change the sufficient-ties analysis.

Jetseen helps you track days - always consult a qualified tax professional for advice specific to your situation.

What is the UK SRT work tie?

The UK Statutory Residence Test uses automatic tests first. If those do not settle the answer, the sufficient ties test can make UK residence depend on a combination of UK days and UK ties.

One of those ties is the work tie.

HMRC's Residence and FIG manual says the work tie applies if the individual does more than 3 hours of work a day in the UK for at least 40 days in the tax year.

That gives you two records to keep:

Record	Why it matters
UK tax-year calendar	UK residence is assessed for the 6 April to 5 April tax year
UK workday log	The work tie turns on more than 3 hours of UK work on at least 40 days

Do not rely on travel dates alone if you work during UK visits.

Do the 40 UK workdays have to be consecutive?

No, based on HMRC's work-tie manual.

The approved source pack says HMRC states that it does not matter whether the days are continuous or intermittent.

That matters for mobile workers because the pattern can look harmless when each trip is short:

Example pattern	Why it needs tracking
Repeated two-day client trips	Workdays can accumulate across the tax year
Founder visits around board meetings	The UK work record may matter separately from travel purpose
Remote work during family visits	Personal-trip labels do not erase work hours
Same-day meetings	Work context may matter even if the presence-day result needs separate SRT analysis

This guide does not tell you whether a day counts for every SRT purpose. It tells you not to lose the work-hours record.

Does one 3-hour UK workday make you UK tax resident?

No.

The approved sources do not support that shortcut.

The work tie is one possible tie inside the sufficient ties test. HMRC's sufficient-ties manual shows that the number of ties needed depends on your UK day-count band and whether you were UK resident in one or more of the previous three tax years.

So the practical question is not "Did I work once in the UK?" It is:

• Which UK tax year is being reviewed?
• How many UK days do you have in that year?
• Were you UK resident in one or more of the previous three tax years?
• Which ties may apply?
• Did you cross the 40-day work-tie threshold?

A qualified tax professional needs the whole file, not the workday count alone.

What should count as a record for work context?

Keep records that explain what happened, when, and why.

Record	What to include
Date	The UK tax-year date, not the calendar month alone
UK presence	Arrival, departure, and whether you were in the UK at midnight
Work hours	Whether UK work exceeded 3 hours that day
Work type	Meetings, client work, employment duties, calls, admin, or other work
Evidence	Calendar entries, travel records, invoices, time records, or advisor notes
Review question	Whether the day affects the work tie, day count, or another SRT rule

Do not over-polish the record. A plain, dated log is often more useful than a vague summary created months later.

How does this connect to the UK day-count bands?

HMRC's sufficient-ties manual shows different ties-needed tables for people who were UK resident in one or more of the previous three tax years and people who were not UK resident in all of those three years.

That means the same work-tie fact can matter differently for two people.

For example, a prior UK resident and a non-prior resident may have different day bands and tie thresholds. This guide cannot map your outcome without the full SRT file.

Use the narrow takeaway:

• the UK tax year is 6 April to 5 April
• the work tie uses more than 3 hours of UK work on at least 40 days
• the 40 days do not need to be continuous
• the work tie is evaluated inside the wider SRT analysis

Where Jetseen fits

Jetseen includes UK tax-year / SRT-style tracking as one of its 13 rule types. It helps users keep UK day records, notes, alerts, documents, custom trackers, and CSV exports in one place.

A practical UK work-tie setup:

• track UK days by the 6 April to 5 April tax year
• add notes for days with more than 3 hours of UK work
• keep travel-day records separate from work-context records
• attach supporting documents for close-margin trips
• use custom notes for advisor questions about ties
• export CSV records for tax review

Jetseen does not determine UK tax residence, decide whether a tie applies to your facts, replace HMRC guidance, or replace professional advice.

If UK visits are part of your work year, Try Jetseen Free for 14 Days and keep the workday record next to the travel record.

Jetseen helps you track days - always consult a qualified tax professional for advice specific to your situation.

Related guides

• UK Statutory Residence Test
• Do UK transit days count for the Statutory Residence Test?
• UK SRT exceptional circumstances

Sources

• HMRC: RDR3 Statutory Residence Test guidance
• HMRC Residence and FIG manual: Work tie
• HMRC Residence and FIG manual: Number of ties
• GOV.UK: Tax on foreign income: residence