There is no turning back time and changing your W-4 for your 2023 tax return. Your income tax refund -- or tax due -- for 2023 was based on the amount of tax withheld from your paychecks during tax year 2023. The amounts on your 2023 W-2 reflect the amount of tax withheld. The software calculated your 2023 refund/tax due based on those amounts.
You can change your W-4 for tax year 2024 if you want more or less tax withheld going forward.
https://turbotax.intuit.com/tax-tools/calculators/w4/
https://www.irs.gov/individuals/tax-withholding-estimator
https://www.irs.gov/pub/irs-pdf/fw4.pdf
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
