Claiming a backdoor roth conversion

[Kevin1970]

I made a non deductible backdoor Roth IRA contribution total of 6700$ in 2025. I made an additional contribution of 300$ in January of this year 2026 for year 2025 to max my total 7000$ allowed by irs. I only received a 1099r for 6700$ from Schwab and they’re telling me I won’t get a 1099 for the 300$ until January of 2027. Is this correct? What do I claim on my 2025 taxes for the 8606 form 6700$ or the total of 7000$?? This is first year filing having done the backdoor method. 

[baldietax]

that's correct, think of backdoor Roth as 2 separate transactions - (1) the non-deductible contribution; (2) a Roth conversion.  You can backdate the contribution to prior tax year, but the conversion will apply to the current calendar year - so you'll get a 1099-R next year for the $300.

when you file for 2025 you would put in a $7000 contribution and also follow the questions about how much of it was contributed this year for 2025.  your 1099-R will show a conversion for $6700 on the 8606, the end result should be a tax-free conversion of $6700 and you will have a basis carryover of $300 which will apply for your 2026 taxes.

the contributions are limited but the conversions are not, so say you do a backdoor this year for $7500 and do it all this year, then on your 8606 for 2026 you will have a basis carryover of $300 plus the $7500 contribution, for a total basis of $7800, and your 1099-R(s) will reflect a total Roth conversion of $7800 also.

[Kevin1970]

Thank you for that detailed answer. I assume if I contribute all 7500$ for 2026 plus the 300$ carry over the irs won’t say I’m over the limit? I assume they’ll recognize 300$ of it was from a late contribution for 2025. I did look at an 8606 online and saw there’s a line dedicated to “how much of this contribution from line 1 was made between january1- April 15” so I should be ok I’m hoping. I also assume turbo tax will auto create the 8606 and fill it in for me? I’ll have to see a cpa if not lol. 

[baldietax]

yes Turbotax will fill in the 8606, the questions on non-deductible contributions, basis carryover, value of IRAs as of 12/31/25, and Roth conversion amounts etc all flow into 8606.  But do review the outcome on this form and your 1040 line 4b.  Hopefully no CPA required, 8606 is fairly straightforward to follow.

and yes to your assumption - the $300 does NOT affect your contribution for 2026 as you would have already recorded that against 2025 (make sure in your brokerage account it was designated as a 2025 contribution also otherwise your Form 5498s will be off - those usually come in May).