Your W-4 is the document you fill out for your employer to indicate how much tax you want the employer to withhhold from your pay. So it affects the amount of your "take home" pay, and it affects whether you might owe on your tax return or get a refund. Your W-4 does not go to the IRS. Claiming dependents ("allowances") on your W-4 does not dictate how you have to file your tax return. When you file your return, you enter your actual dependents, which of course affects your tax due or refund.
Having too many allowances on your W-4 might make you end up owing when you file your tax return; having fewer allowances means more tax will be withheld from your pay--resulting in either at least not owing, or possibly a refund.
https://turbotax.intuit.com/tax-tools/calculators/w4/
**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.**
