The November 2026 deadline for non-dom restructuring is not a suggestion, a guideline, or a best-practice recommendation. It is a hard stop. After November, the transitional provisions that allow existing non-dom structures to be unwound or restructured on favourable terms expire permanently. The full tax liability — including the inheritance tax charge on overseas assets — applies from December onwards, with no retrospective relief.
The Countdown Logic
Our intelligence from London's private client bar suggests that the leading firms are now prioritising non-dom work above all other matters. The pipeline is full, the deadlines are fixed, and the capacity constraints are real. The families who engaged restructuring counsel in Q1 2026 are on track. The families who are still evaluating options in Q2 are already behind the curve — not because the work cannot be completed in time, but because the most favourable structuring pathways are capacity-constrained.
By September, the most experienced practitioners will be fully committed. By October, the rush will create bottlenecks in every part of the process — legal review, trust restructuring, asset repatriation, and regulatory filing. The six-month countdown is not metaphorical. It is operational.