When a married couple files a joint tax return, each spouse is “jointly and severally” liable for the full amount of tax on the couple’s combined income. Therefore, the IRS can come after either spouse to collect the entire tax — not just the part that’s attributed to one spouse or the other. This includes any tax deficiency that the IRS assesses after an audit, as well as any penalties and interest. (However, the civil fraud penalty can be imposed only on spouses who’ve actually committed fraud.) Innocent spouse relief In some cases, spouses are eligible for “innocent spouse relief.” This generally involves individuals who were unaware of a tax understatement that was attributable to the other spouse. To qualify, you must show not only that you didn’t...

If you file a joint tax return with your spouse, you should be aware of your individual liability. And if you’re getting divorced, you should know that there may be relief available if the IRS comes after you for certain past-due taxes . . . so-called innocent spouse tax liability relief. What’s “joint and several” liability? When a married couple files a joint tax return, each spouse is “jointly and severally” liable for the full tax amount on the couple’s combined income. That means the IRS can come after either spouse to collect the entire tax — not just the part that’s attributed to one spouse or the other. Liability includes any tax deficiency that the IRS assesses after an audit, as well as penalties and interest....

When a married couple files a joint tax return, each spouse is “jointly and severally” liable for the full amount of tax on the couple’s combined income. Therefore, the IRS can come after either spouse to collect the entire tax — not just the part that’s attributed to one spouse or the other. This includes any tax deficiency that the IRS assesses after an audit, as well as any penalties and interest. (However, the civil fraud penalty can be imposed only on spouses who’ve actually committed fraud.)  So, if you’re married and file a joint return, what happens if your spouse doesn’t disclose all of his or her income or otherwise doesn’t pay the correct tax owed? You’re generally liable for the full amount, but...