Six years out, four years short: the Sussex return prices the UK's ten-year clock

The two clocks run in opposite directions. The temporary non-resident rule looks backwards: leave, make profits on investments abroad, return inside five tax years, and the UK can potentially tax those gains as though the departure never happened ^[3]. The ten-year test looks forward: a decade of non-residence before arrival buys four years of relief on foreign income and gains after the move, and can keep non-UK assets outside inheritance tax ^[4]. Six full years abroad clears the first by a single year ^[8] and misses the second by four ^[9]. The four years not spent away are the same number of relief years given up ^[2].

That is why the professional verdicts read as though they concern different households. Nimesh Shah, chief executive of Blick Rothenberg, calls the timing of the move back "immaculate", on the basis that six years puts the couple beyond the five-year rule ^[5]. Dhana Sabanathan, a partner in the tax, trusts and succession team at Michelmores ^[16], told Fortune that "staying away a bit longer would have given them a much better tax result" ^[15]. Both readings hold, because they score different tests. Shah's win is retrospective and finite: per Sabanathan, non-UK disposals and income earned while they were non-resident, potentially including the Netflix and Spotify deals and Meghan's As Ever brand, should not be taxed on return ^[13]. Sabanathan's loss is prospective and has no closing date.

Multiply the top inheritance rate by the fortune estimated in the reporting and the arithmetic ceiling is $24 million ^[19]. That is not a bill. It assumes the entire estimated fortune sits outside the UK and is fully exposed, which no adviser quoted has said; the source puts it at millions of dollars of overseas assets ^[18]. What the ceiling does is set the scale against which four more years in California should have been priced.

The income side is the recurring part. With ten clear years behind them, a returner can sell appreciated foreign investments after arriving and bring the proceeds into the UK without owing UK tax on qualifying foreign gains ^[10]. Without those ten years, qualifying foreign income and investment gains can fall into UK charge instead ^[11]. That is an annual position, not a single event, and it applies to a household whose money is commercial rather than official: since stepping back in 2020, Harry has not collected the public funding working royals receive for their duties ^[14], and the earning years since the California move have run through media ventures ^[17]. Foreign-source income is precisely what the four-year window would have covered.

Meghan's US filing obligations continue either way as a California-born citizen, while Harry, with no publicly reported US citizenship, faces no American exit charge on leaving ^[12]. The genuinely movable variable in the whole arrangement was the arrival date, and it was set four years early.