Since you divorced during the year your filing status for the year will be single and you may therefore have underpaid withholding from your salary. That could leave you with a underpayment penalty when you pay your taxes, but you can avoid this by paying an additional amount now. There are a number of ways to pay, including making a 4th quarter estimated tax payment.
Have a look at the following: https://www.irs.gov/newsroom/ways-to-pay-your-tax-bill to see the various ways you can pay now to avoid the underpayment penalty. You may, however, still be subject to a late payment penalty.
Answers are correct to the best of my ability but do not constitute legal or tax advice.
**If this post is helpful please click on "thumbs up"**
