So I'm working from home for a US company while my wife studies here in Scotland. I am a contractor writing some software. I've been working for them since late October (we arrived in Scotland in September). My wife is not earning income, but working in an internship once per week.
This will be our first time filing a UK return. I have registered as a sole trader in the UK. From what I understand, we pay the UK taxes and then send some extra documentation with our US return to exempt us from paying social security (as we're on the national health plan here) and a document to include our foreign tax credit.
Since the tax year ends 5 April in the UK, but we need to file by the 18th April for the USA, will that be enough time to figure out our foreign tax credit? Should we file for an extension on our taxes and pay the accrued interest?