The One Thing You Should Do Postwedding for a Happier Marriage

If you and your partner haven't merged your finances yet, you might want to consider doing so—and here's why.

According to a recent study by Policygenius, couples that managed their money separately were less likely to be happy in their relationships.

To be exact, around one in five (or 20 percent) of couples surveyed who didn't combine their finances reported they were considering leaving the relationship because of money issues. Compare that with couples who do handle their finances together—only 4 percent reported having serious relationship problems due to money issues.

It makes sense: It might feel awkward and uncomfortable, but if you don't discuss your money, you're more likely to be dishonest about things like debt (which is a huge no-no), income and savings. Aka, all the topics you should most definitely disclose when planning a future with someone.

According to the study, this might be a product of people getting married later in life, once they've established their own income and money habits—and don't feel the need to keep their partner in the loop regarding personal details like salaries and spending patterns.

Not sold yet? You can still keep your money separate, and it doesn't have to be a bad thing. Just make sure you continue to be open and honest with your partner, and don't let financial issues damage your relationship by keeping them hidden.

Check out the infographic below for more fascinating findings from the study.