backdoor IRA question : how to correctly report form 8606?

Hi,

 

Here's my situation : Married filling jointly, backdoor IRA for both.

Our tIRA contribution dates :

(1) me : $6500 for 2023 in 2023, $7000 for 2024 in 2024

(2) my wife : $6500 for 2023 in 2024 (before 2024/4/15), $7000 for 2024 in 2024

-> these were all converted to Roth IRA right after.

 

Our 8606s right now :

In tax return 2023, our 8606 line 1 shows only $6500 (because I thought that I couldn't include my wife's $6500 contribution in 2024, due to lack of 1099-R).

Now in tax return 2024, 8606 says $13500 is taxable.

 

Cleary something's wrong, but I'm not sure how to fix this. Any comments would be highly appreciated.