She doesn’t have a traditional IRA, just a 401k and Roth IRA. I’ve over-contributed to my Roth before and had to pull out the excess. I think recharacterizing would mess up future backdoor Roths because of the pro-rata rule, right?
@Lior
If neither of you has pre-tax IRA assets, you can recharacterize to traditional IRAs (nondeductible) and convert. Taxes are only owed on earnings if traditional IRAs are empty or close to empty by year-end. Each person files a separate 8606.
Run your 2024 taxes as single and married to see which works better! My spouse and I had a similar situation and chose to get married a few months earlier in December but kept the big wedding for the summer. Now we celebrate both dates!