I am accidental US citizen, never lived in US. Married to non-US spouse. Up to date, simple situation, file separately, FEIE, treaty for workplace pension. No investments.
In the spring we will become accidental landlords as we are moving and cannot sell our current flat due to cladding issues. So we will rent it out. I understand for this I will need to complete a UK self-assessment (something I've never done) and take tax credits from the UK taxes on my US return.
I wondered if there are any other specific issues related to this, or if its better to speak to an advisor.
One particular question is how to handle the diffent calendar offsets. If we start renting in April it won't be until 2022 that I do my UK return, so when I file my 2021 US return how to I evidence any UK tax paid for the FTC?
Do I use the same deductions (letting agents fees, insurance etc.) for both systems - are there any gotcha's in terms of differences of whats allowed? (I know I only get 20% for mortgage interest in UK and nothing for capital repayment).
Another question is in this situation is it likely to be better to move my salary to FTC also? (I am a higher rate tax payer, so I thought my rental income will be taxed at higher rate and the FTC from that alone would be more than enough to offset any US liability, so was thinking to keep FEIE for my salary for simplicity).
Everything is joint owned, so I should apply all our deductions to the rental income then split any remainder 50:50 and only declare my 50%? What sort of record keeping would be recommended for this? (ie just keep a spreadsheet of my own along side the receipts, or is there any software anyone would recommend).
Is this something that is relatively acheivable for a normal amateur (I found the regular tax return and streamlined procedure quite OK once I read up on it based on my simple situation) or would it be advisable to get professional assistance.
Thanks for any pointers, best wishes to all.