Hi,I entered 2 instead of 0 in my W-4 form and this caused me to pay more tax for 2023. Can I correct it and get more tax return?

[taxlady28]

Fill out a new W-4 form with the correct numbers and give it to your employer.  It will not change what you owe this year but will help for next year.

[xmasbaby0]

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