Why am I getting an underpayment penalty? I am not self-employed

[CarolynM]

Even if you are employed for wages, you can face underpayment penalty for not paying enough throughout the year.

You can even face underpayment penalty if you are receiving a refund.

I advise you to review Form W-4 with your employer.

For more information, follow these links:

IRS on Underpayment Penalties

W4 Instructions