I changed my W-4 form to "married filing jointly" for 2023 and I noticed that federal tax withholding for 2023 was lower compared to 2022 and thus I am due a significant amount of tax to IRS for 2023. I've verified that I fall within the same tax bracket whether filing as a single individual or as part of a married couple filing jointly. Thus, I'm unsure how my marital status affected the tax bracket. Additionally, what adjustments should I make to my W-4 for 2024 to prevent encountering this issue in the future.
