Just sent this message off to TowerTax. See below. If anybody else here could answer these questions.....please have a go at it.
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Thanks for replying,
We are just in the beginning stages of planning for a return to the UK. From what I am learning from other people on internet forums, we should be able to do the taxes ourselves once I figure out how to set ourselves up....and.....whether the likely increase in taxes might be more than we can afford.
I am a US citizen and my wife is a UK citizen with green card for the US at this time. If the rules haven't changed, she was going to go for US citizenship next summer after we have been in the US for 3 years. At that time we need to make a decision on whether we stay here or plan a return to the UK around 2016. If we do make the call to go back to the UK it would likely be for good, which would of course include all the things I would need to do to move to and remain in the UK.
Present income
-$1,289 ($962 take home) gross monthly from US Govt pension
-Currently waiting on a annuity supplement to start when I took early retirement. Should be $700-800 a month from age 56 to 62 when I am eligible for Social Security.
Future income
-Above US pension continues. Pension will not get COLA until I hit 62 (2019)
-Social Security starts in 2019 if I choose to take it at 62. Approx $1,350 a month at the latest estimate, but has been going down since I retired.
-Wife "should" get a 50% spousal Social Security amount. She would if she stayed in the US even without citizenship.
-Wife gets small private pension with Standard Life estimated at 1200 Pounds yearly at age 60 (2020)
-Wife gets small local Govt pension of an estimated 1988 Pounds yearly before taxes at age 65 (2025)
-Wife gets State pension of approx 121 Pounds weekly (6,292 Pounds yearly) at age 67 (2027)
Current savings
-Approx $350,000 in Vanguard mutual funds + money market
-Approx $444,000 in my Govt work IRA type fund (TSP -Thrift Savings Program). Taxes not paid on this money until it is taken out.
-Current house we own here worth approx $230,000 which we sell upon leaving.
-$40,000 cash (enough to get us 2 more years here)
-Wife has a small checking account in the UK so she can send her kids money for birthdays etc.....Less than 1,000 Pounds.
I can't really answer the capital gains question, we haven't been tapping either our Vanguard or TSP money at this time and shouldn't for another 2 years.
Some of the points being made in a online forum is whether I should be moving some of my TSP money over to a Roth and paying the taxes on that now while I am in a low tax bracket. Evidently the UK won't tax that if it is in a Roth, but "might" if I remove it while living in the UK and paying taxes in the US on it at that time.
Questions we need answered (and likely a bunch I don't know yet to ask)
1. Will my (and wife's) Social Security be taxed in the UK when I start receiving it?
2. Will my pension from the US Govt be taxed by the UK?
3. When I eventually sell parts of the Vanguard funds, will I be taxed (on the capital gains) in the UK? I likely won't be in the US since my tax bracket is low.
4. When removing my money from my Govt retirement fund (TSP) will have to pay tax in the US as well as in the UK?
5. How does the Personal Tax Allowance (9,440 Pounds at this time) affect us?
6. If the UK will tax my US Govt retirement savings TSP money after moving, would I avoid paying UK taxes if I move that money to a Roth and pay the taxes now?
There are likely a few other questions I can't come up with at this time. Compared to other people I have discussed things with online.....our finances are fairly simple. We just need to know how things will affect us if we decide to move back to the UK.