I’m sorry for your loss.
Because your husband passed away in December 2025, you can still file a Married Filing Jointly return for the 2025 tax year (as long as you didn’t remarry in 2025), reporting both of your incomes as usual. Be sure to indicate that he's deceased and include the date of death on the return.
For 2026 and 2027, you may be able to use Qualifying Surviving Spouse status if you have a dependent child and meet the rules; otherwise you’d typically file as Single/HOH depending on your situation.
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