Hi all, I hope this isn't driving the thread off-topic...
I went back to my tax preparer asking for the provisions in the tax code that make UK pension accounts equal to US qualified pension accounts. The answer was disappointing.
However, I took a look at the instructions on Form 8833, which led me to the following provision
I've seen this provision quoted on this site before, but never really followed the discussion. Why wouldn't this be the answer to what my tax preparer told me?
The "income from dependent personal services" probably covers your salary, but does it include the employer's pension contributions. Also are the gains in the pension covered by this exemption?
There are multiple ways to achieve the tax deferral on pension contributions, but the exact mechanics of how to fill out the forms is a bit of a mystery to me. So here are some thoughts.
1) Using the treaty.
Claim tax exemption on employee and employer pension contributions. What do you fill in for your wages on the 1040.....is it just your taxable wages? So you don't include the pension contributions anywhere on the 1040, but you describe them on the 8833 and give balances on the usual informational forms. How do you fill out 8833 exactly?
2) Using FEIE and the treaty.
You include your taxable wages and employee pension contributions on the 1040 and exempt them using FEIE. Then you either use standard deductions and exemptions to cover the employer contributions (would you enter the employer contribution as "Other Income") or use the treaty. If you use the FEIE and you retire to the US it looks to me that you will have a tax free US basis in the pension as the income will not be UK taxable and you've exempted the contributions from US tax.......is this right?
3) Use FTCs
If you have excess FTCs and exemptions and allowances that will cover the tax on your income and yours and the employer contributions, just use those. Again where does the employer pension contribution go on the 1040, in "Other Income"? This would also give a US tax free basis and there would be no US tax if you move back to the US.
4) In all this I assume you claim treaty relief on gains as the taxation of those given the types of funds included in a UK pension fund might get very complicated.
The details of all this are tricky.