Are you married? Chances are you’re planning to file a joint tax return.

However, that may not be the best choice.

In 2016, just 5.3% of married couples chose to file separate returns, according to data from the Internal Revenue Service. That’s not surprising, given how complicated filing separate tax returns can be, said Robert Westley, an accountant and a member of the American Institute of CPAs’ Personal Financial Specialist Credential Committee.

“The married filing separately tax status comes with a lot of quirks,” he said.

Read more at MarketWatch.com.