Re: Perfect timing
Clearly you've not been reading or listening to the news recently or you'd know that being "non-dom" doesn't mean you don't pay taxes at all. You have to declare *where* you are domiciled for tax purposes. That makes it harder to avoid the taxes where you *are* domiciled.
I didn't say that at all. Please re-read.
Then read this:
How the UK’s non-dom status works
And to spell it out, you are a UK tax resident, you declare you wish to avail yourself of non-domiciled status, offer supporting evidence (e.g. you are from another country and intend to return, or you inherit this status from a parent - this is actually a thing).
You are still tax resident in the UK, from your home country's point of view (e.g. India) you are not tax resident.
You end up paying tax on your UK income to the UK, £30K/year for any and all worldwide income to the UK, and you don't pay inheritance tax to the UK.
She would pay tax on Indian earnings (if she has any) to India but that's it.
Now imagine she also has income in the Cayman Islands, just to choose somewhere random on the globe. Works out quite well, doesn't it?