The Remittance Basis: A Case Study on UK Tax Reforms in 2026/27

For decades, the remittance basis offered significant tax advantages for non-UK domiciled individuals. The Finance Act 2025 fundamentally dismantled this framework, completely abolishing the remittance basis for the 2025/26 tax year and subsequent years.

For tax professionals advising former non-domiciled clients in the 2026/27 tax year, the focus has shifted from maintaining offshore boundaries to navigating the transitional rules. This article provides an authoritative overview of the current landscape, followed by an in-depth exploration of The Remittance Basis: A Case Study, focusing on the Temporary Repatriation Facility (TRF) and the complex new mixed fund rules.

The Legislative Shift: The End of the Remittance Basis

Section 40 of the Finance Act 2025 officially ended the remittance basis.

Amendments made by paragraph 1 of Schedule 9 have the effect that the remittance basis is not available for tax year 2025-26, or for subsequent tax years.

However, the legislation includes a critical caveat: provisions relating to the remittance of income and gains continue to have effect for foreign income and gains (FIG) that arose and were sheltered under the remittance basis in previous tax years.  This means that while individuals can no longer claim the remittance basis for new income arising in 2026/27, the historical FIG remains fully taxable under the old rules if remitted to the UK outside of specific transitional facilities.

To replace the domicile-based system, the government introduced a 4-year FIG regime, providing 100% relief on foreign income and gains for new arrivals during their first four years of tax residence, provided they were non-resident for 10 consecutive years prior.

The Temporary Repatriation Facility (TRF) in 2026/27

To encourage former remittance basis users to bring historical wealth into the UK economy, the government introduced the Temporary Repatriation Facility (TRF).  The TRF allows individuals to designate and remit pre-April 2025 FIG at a substantially reduced tax rate.

The TRF operates for a strictly limited three-year window, making the 2026/27 tax year a critical period for tax planning.

TRF Rates by Tax Year

The TRF also applies to unattributed FIG held within trust structures, as well as amounts of “Chargeable Foreign Securities Income”.

Managing Mixed Funds and TRF Capital Accounts

Navigating mixed funds has historically been one of the most perilous aspects of the remittance basis. For 2026/27, the government introduced distinct ordering rules and account structures specifically for “TRF capital”.

Priority Ordering

Under the revised rules, taxpayers can remit “TRF capital” (qualifying overseas capital designated under the TRF) to the UK in priority to all other kinds of income and gains held within a mixed fund.  Furthermore, during the TRF period, an annualised basis applies to mixed funds containing TRF capital, replacing the standard transaction-by-transaction basis.

TRF Capital Accounts

To prevent the accidental tainting of funds, Schedule 10 Paragraph 17 of the Finance Act 2025 introduced the “TRF capital account”.

An individual can nominate a standard bank account as a TRF capital account by providing written notice to HMRC.  Once nominated, transfers of TRF capital into this account are protected. However, strict rules apply:

1. The TRF Deposit Rule: A breach occurs if any “prohibited sum” (anything other than TRF capital) is paid into the TRF capital account.
2. The 30-Day Remedy: If a prohibited sum is deposited, the breach can be remedied if the individual transfers the prohibited amount out of the account via a single one-off qualifying transfer within 30 days.

“A breach of the TRF deposit rule is remedied if, within 30 days beginning with the day on which the prohibited sums are paid into the account, the required amount is transferred out of the account by way of a single one-off qualifying transfer.”

The Remittance Basis: A Case Study (2026/27)

To illustrate the practical application of these rules, let us examine a detailed case study for the 2026/27 tax year.

Background: Julian has been a UK resident, non-domiciled taxpayer since the 2018/19 tax year. He claimed the remittance basis annually until its abolition on 5 April 2025. He holds an offshore mixed fund (Account A) containing £2,000,000. Of this, £500,000 represents clean capital, £1,000,000 is pre-April 2025 foreign income, and £500,000 is pre-April 2025 capital gains.

In August 2026, Julian wishes to purchase a UK property and needs to remit £800,000.

The 2026/27 Strategy:

1. Designation: Under the standard mixed fund rules, remitting £800,000 directly from Account A would trigger high rates of income tax and capital gains tax on the historic FIG.  Instead, Julian designates £800,000 of the historic FIG within Account A as “TRF capital” on his 2026/27 tax return.
2. Tax Liability: Because he executes this in the 2026/27 tax year, the TRF charge on the designated £800,000 is calculated at the highly preferential rate of 12%.  This generates a TRF tax liability of £96,000, payable through the self-assessment system.
3. Segregation via TRF Capital Account: To cleanly remit the funds without disturbing the remaining un-designated FIG in Account A, Julian opens a new, empty offshore bank account (Account B). He formally nominates Account B to HMRC as a “TRF capital account”.
4. The Transfer: Julian transfers the £800,000 TRF capital from Account A to Account B. Because of the new priority ordering rules, the transfer out of the mixed fund is treated purely as a transfer of TRF capital, leaving the remaining historic FIG and clean capital behind.
5. The Remittance: Julian safely remits the £800,000 from his TRF capital account (Account B) to the UK to purchase his property. He suffers no further tax charges upon remittance, successfully leveraging the 2026/27 TRF window.

Handling a Breach:

Suppose that shortly after opening Account B, Julian accidentally deposited £5,000 of newly arising 2026/27 foreign dividend income (which is taxable on an arising basis) into the TRF capital account. This constitutes a “prohibited sum” and breaches the TRF deposit rule.  To save the account’s special status, Julian must identify the error and make a single transfer of £5,000 out of Account B to a non-UK destination within 30 days of the accidental deposit.

For further analysis, consider reviewing the exact interaction between the TRF and the capital gains tax rebasing rules (to 5 April 2017) for past remittance basis users disposing of foreign assets.