Thanks nun,
I don't want to appear ungreatful because I really appreciate the advice I have received which has really helped me to understand this complicated area... but I don't see how that can possibly be right (to put 1/80 as my accrued benefit).
After 1 year of contributions, 1/80 of salary is the pension amount I will receive for every year that I claim the pension and in addition I will receive 3/80 of that years salary as a lump sum. I don't see how this is a quantity of interest to the IRS. The defined benefits of the pension scheme that I will receive in return for one years contributions are as I covered earlier 23/80 of the contribution years salary (this is the capital value of the defined benefits accrued from one year of contributions as defined in the USS guide).
I guess I don't understand how paying tax on 1.25% of salary (1/80) can possibly result in a lower taxed basis in the pension than if I paid tax on the employer contributions of 16%. Whereas if I paid tax on what I consider the accrued benefit (28.75%, 23/80) then I can see it should indeed result in a higher taxed basis, with only inflation/pension increase adjustment gains left to tax at the end.
However, since I can't find any information about whether this defiintion of accrued benefits is acceptable to the IRS it seems safer to declare the employer contributions which I am confident is OK, and which my advisor recommended (although I haven't yet had a chance to ask them about the accrued benefit issue).
So my main outstanding question relates to a comment from Goya:
You are required under code section 402(b) to enter the vested accrued benefit of the plan each year. This is a legal obligation and is not optional.
Where and how do I need to report this (form 3520?)? Is the value of 23/80 x salary (captial value as indicated in the USS prospectus) acceptable or do I need to find and use an IRS multiplier?
Thanks again