How the FIG regime differs from the old rules
The remittance basis let non-domiciled residents keep foreign income and gains outside UK tax indefinitely, provided the money stayed offshore and, for longer-term residents, a £30,000 or £60,000 annual charge was paid. The FIG regime works the other way round: relief is complete and the money can be spent in the UK immediately, but the window is fixed at your first four resident years, every relieved amount must be disclosed source by source on the return, and once the four years end you are on the arising basis. Our FIG regime vs remittance basis comparison sets the two systems side by side.
The trap: pre-2025 offshore money is still taxable
Abolition did not wipe the slate clean. Foreign income and gains kept offshore under the old remittance basis remain taxable if brought to the UK, at up to 45% for income. The bridge is the Temporary Repatriation Facility: former remittance-basis users can designate that pre-6 April 2025 money at a flat 12% in 2025/26 or 2026/27, or 15% in 2027/28, after which it can be remitted at any time with no further UK tax. The window closes on 5 April 2028.
What to do now
If you are moving to the UK, check each of the 10 tax years before arrival against the Statutory Residence Test, because a single resident year in that window breaks FIG eligibility. Run the arithmetic every year before claiming: on modest foreign income the lost £12,570 Personal Allowance can cost more than the relief saves. The SA109 cannot be filed through HMRC's free online service, so plan for commercial software or an agent. Former remittance-basis users should quantify their offshore pool now: 2026/27 is the last 12% TRF year.
