Question 1

What is split year treatment under the HMRC Statutory Residence Test (SRT)?

Accepted Answer

Split year treatment divides a single UK tax year (6 April to 5 April) into a UK resident part and an overseas non-resident part. This ensures foreign employment income and capital gains earned during the overseas part of the year are not taxed by HMRC.

Question 2

Is split year treatment optional or automatic?

Accepted Answer

Split year treatment is NOT optional; if you satisfy the exact statutory criteria for one of the eight split year cases under HMRC RDR3 guidance, split year treatment applies automatically.

Question 3

How many cases of split year treatment exist under UK tax law?

Accepted Answer

There are 8 statutory split year cases: Cases 1 to 3 apply when LEAVING the UK (working abroad, partner working abroad, ceasing UK home). Cases 4 to 8 apply when ARRIVING in the UK (starting UK work, starting UK home, accompanying partner, etc.).

Question 4

What happens if my situation qualifies under more than one split year case?

Accepted Answer

HMRC applies strict Statutory Priority Rules (outlined in Schedule 45 of Finance Act 2013). For example, Case 1 (starting full-time work abroad) takes priority over Case 3 (ceasing to have a UK home).

Question 5

How many days can I spend in the UK during the overseas part of a split year?

Accepted Answer

Under Case 1 (working full-time overseas), you must spend fewer than 91 days in the UK during the overseas part of the tax year, and work in the UK for fewer than 31 days (where a work day is more than 3 hours).

Question 6

How do I claim split year treatment on my Self Assessment return?

Accepted Answer

You declare split year treatment by completing the SA109 (Residence, remittance basis etc.) supplementary page of your annual UK Self Assessment tax return, specifying the applicable Case number and exact split date.

UK Split-Year Tax Treatment Evaluator

Interactive Split-Year Case Checker

Case 1: Starting Full-Time Work Overseas

Summary of 8 HMRC Split-Year Statutory Cases

Leaving UK (Cases 1–3)

Arriving in UK (Cases 4–8)

Frequently Asked Questions (FAQ)

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