I've gone through the FinanceBuff article and followed the steps to the T but the numbers are not adding up - https://thefinancebuff.com/how-to-report-backdoor-roth-in-turbotax.html
This table described what happened in 2019.
Traditional IRA ending balance as of dec 31 2018 | Traditional IRA account on (mar 31 2019) | current year contribution to Traditional IRA (4/12/19) | Conversion to Roth IRA (4/12/19) | Taxable amount | Traditional IRA Balance as of 12/31/19 | |
Me | 11,164.21 | 12,396.14 | 6000 | |||
18,396.14 | 18,647.93 | 251.79 | 0 | |||
Traditional IRA account on (mar 31 2019) | current year contribution toTraditional IRA (4/15/19) | Conversion to Roth IRA (5/06/19) | Taxable amount | Traditional IRA Balance as of 12/31/19 | ||
My spouse | 6282.32 | 6978.42 | 6000 | |||
12978.42 | 13173.6 | 195.18 | 0 |
It sound like you failed to enter your 2019 non-deductible contribution so it is not on the 8606 line 1 to be added to the 2018 carry over in line 2 so the total is on line 3. If your 2018 line 14 was $5,500 and a $6,000 2019 contribution the line 3 should be $11,500.
Enter IRA contributions here:
Federal Taxes,
Deductions & Credits,
I’ll choose what I work on (if that screen comes up),
Retirement & Investments,
Traditional & Roth IRA contribution.
OR Use the "Tools" menu (if online version under My Account) and then "Search Topics" for "ira contributions" which will take you to the same place.