Hmm, that's interesting. Here we have devolved governments in Wales, Scotland and Northern Ireland.

However, income tax, VAT (value added tax) and other tax brackets are all the same regardless of whether you're in England or one of the other nations within the UK.

Westminster will then allocate a budget to each nation/region and it's up to them to decide what to do with that budget.

If I live in London, it's possible that a large chunk of my taxes go towards paying for the health service in Manchester or for the upkeep of roads in Wales.

There is no 'my taxes go to my service' because imagine how unfair that would be in areas that aren't as developed. It would result in cities like London and Manchester becoming powerhouses but then the rest of the towns and cities that aren't as affluent fall into disrepair.

I feel like this is actually a problem in the US where cities like Detroit should've recovered decades ago but because the local economy simply isn't there, so they can't rebuild as efficiently.

You might argue that tax payers elsewhere shouldn't be paying for the redevelopment of Detroit but what if it gets to the point where the income from Detroit is enough for that other city instead?