No one here can see any of your information or see your tax returns or access your IRS tax account. But you can. Look at your account on the IRS site:
https://www.irs.gov/payments/view-your-tax-account
You do not say who sent you a notice that you owe $2500.
And---talk to the attorney who represented you in the divorce. If your ex owes back taxes from the time when you were married you need legal advice.
**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.**
