The short answer
For joint returns, yes, both of you are responsible, even if the divorce decree says otherwise. Innocent spouse relief or separation of liability may help. Ask within 2 years of the first IRS notice about the error.
Words to know
- Innocent spouse relief
- Relief from tax your spouse caused on a joint return, if you didn't know about the errors.
- Separation of liability
- Relief that splits extra tax on a joint return so you pay only your share. You must be divorced, separated or living apart.