Compliance
Navigating the Mandatory Foreign PE Exemption from 2027 for UK Companies
UK-resident companies with foreign permanent establishments must adapt to a new regime that exempts PE profits and losses – here’s what it means and how to prepare.
By NomadicTax Research Team • 5-8 min read • July 17, 2026
## What is the Foreign PE Exemption Reform?
On **21 May 2026**, the UK Government announced plans to reform the taxation of **foreign permanent establishments (foreign PEs)**. The key change: profits and losses of foreign PEs will no longer be optional but **mandatory exempt from UK Corporation Tax** for accounting periods **beginning on or after 1 January 2027**, with an **earlier date** of **1 September 2026** for companies in the oil & gas sector. ([gov.uk](https://www.gov.uk/government/publications/foreign-permanent-establishment-exemption/foreign-permanent-establishment-exemption-policy-paper?utm_source=openai))
Under the current regime, UK-resident companies can elect to exempt or include profits and losses of their foreign PEs; election is irrevocable and has trade-offs for losses and profit offsets. The planned change removes this election: exemption becomes compulsory. Losses incurred by foreign PEs from that date cannot be used to offset UK profits. Transitional provisions are in the draft legislation, with associated anti-avoidance rules. ([gov.uk](https://www.gov.uk/government/publications/foreign-permanent-establishment-exemption/foreign-permanent-establishment-exemption-policy-paper?utm_source=openai))
## Who Will Be Affected?
- UK-resident companies with overseas operations carried out through branches/permanent establishments—not subsidiaries.
- Particularly oil & gas companies—they move earlier (from 1 September 2026).
- Multinational groups and financial organisations where foreign PE losses have been used to shelter UK profits.
## Practical Steps to Prepare (Entity Setup & Tax Planning)
1. **Map your foreign PE structure**: Identify branches or PEs in other jurisdictions, ensure accounting systems can isolate profits and losses linked to each PE separately.
2. **Review loss carry-forward and offset strategies**: Losses arising in foreign PEs before mandatory exemption may not be usable after the commencement. Plan timing of loss usage accordingly.
3. **Anti-avoidance vigilance**: Draft legislation includes rules to counter arrangements whose **main purpose is tax advantage** or to circumvent the new regime. Such arrangements may be subject to adjustments. ([gov.uk](https://www.gov.uk/government/publications/reform-of-the-foreign-permanent-establishment-exemption?utm_source=openai))
4. **Update internal reporting and forecasting**: Expect changes to your tax liabilities and cash flow—excluding PE losses reduces current relief; simulate effects to assess impact.
## Example: Hypothetical Company Scenario
A UK-resident manufacturing firm has a foreign PE in Country X that experienced losses of £2 million during 2026. Under current rules with election, these losses could offset UK taxable profits in the same accounting period. Under the new mandatory exemption (effective from 1 Jan 2027), those losses **cannot** be applied against UK profits, raising the firm’s UK Corporation Tax liability. In oil and gas, this change starts from 1 September 2026.
## Key Dates and Transitional Provisions
- **Oil & Gas sector**: policies effective from **1 September 2026**.
- **All other UK companies with foreign PE(s)**: apply from **accounting periods starting 1 January 2027**.
- The draft legislation was published 13 July 2026, with consultation responses due by September 13, 2026. ([gov.uk](https://www.gov.uk/government/publications/reform-of-the-foreign-permanent-establishment-exemption?utm_source=openai))
## How to Mitigate The Impact
- Accelerate use of foreign PE losses before the exemption kicks in.
- Consider reorganizing certain operations, whether via subsidiaries instead of PEs, if that gives more favourable tax treatment.
- Factor changes into pricing, investment return models, and capital allocation.
---
In short, the mandatory foreign PE exemption fundamentally shifts how cross-border branch profits and losses are treated in the UK. Proper planning, early action, and understanding the timing are critical to avoid unwelcome surprises.