UK Expat Tax Return 2026 -- SA100, SA109 Residence and Filing Deadlines
The UK expat tax return in 2026 requires SA100 plus SA109 for non-UK-residents with UK-source income. Online filing deadline: 31 January 2027. Finance Act 2025 abolished non-dom status from 6 April 2025; 4-year FIG applies. Dividend rates from 6 April 2026: 10.75%/35.75%/39.35%.