Here's cause for concern if you share a bank account with your significant other: 33 percent of people with combined finances have lied to their partner about money.
What's more, 35 percent have been financially deceived by a partner, according to a new survey of 2,035 U.S. adults by the National Endowment for Financial Education (NEFE).
Those numbers are up ever so slightly from NEFE's 2011 assessment, in which one in three Americans (31%) admitted to lying to their spouses about money, and 33 percent said they had been financially deceived.
"You would think with the recession that people are talking to each other more about money," Ted Beck, NEFE's president and CEO told CNBC of the findings. "But people are continuing bad habits."
For most of the couples, the financial lies took a toll on the relationship. Three quarters (76%) of those who experienced financial infidelity said the lies affected the relationship in some way, with almost half (47%) admitting it caused an argument and one third (33%) reporting that it had resulted in less trust in the relationship.
Ten percent of respondents said that the deception ultimately resulted in divorce -- and we can't say we're surprised. A July 2013 longitudinal study out of the Kansas State University found that arguing about money is the top predictor of divorce, regardless of the couple's income, debt or net worth.