Yes. the fewer exemption the more the tax withheld.
Ask you employer what went wrong.
Unfortunately 2020 is over so if you were under withheld, you might owe more tax - that cannot be changed now. You should have noticed months ago if no tax was being withheld on the pay stubs you received and asked the employer about it then.
It is also possible that tax was withheld and the W-2 is incorrect and you need a corrected W-2 form the employee.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
