Here's one for the money-stressed new-parent house: a hidden bank account isn't just your business. A new study finds that when one partner hides money and the other is transparent, that mismatch alone predicts both a less happy marriage and less money in the bank — and it damages the couple about as much as if both partners were lying.
The research, published in the International Journal of Research in Marketing and covered by PsyPost on July 21, tracked real couples through a shared-money app plus several surveys of married couples in the US. In a pilot of 622 couples, the bigger the gap in how many accounts each partner hid, the lower the couple's total assets and the survey-taker's relationship satisfaction. The mechanism the authors landed on: mismatched honesty nudges partners toward separate, individual money goals instead of shared ones — and those separate goals quietly erode both the relationship and the balance sheet. Notably, a gap in financial honesty predicted worse outcomes than gaps in spending style or general personality did.
Fair caveat: it's largely correlational — you can't ethically assign real couples to lie about money — so this is a strong link, not airtight proof of cause. But the direction is clear, and it reframes the problem: financial secrecy is a couple-level issue, not a private habit. Having one secretive partner hurt the marriage about as much as having two.
Keep readingLonely as a new dad? Why it happens and what helps · Dead bedroom after a baby: how to fix it without pressure · How relationships work — the crisis map
Co-founder of Regular. Writes about relationships, parenthood, and the science of how couples stay close after a baby.
About Regular — the relationship app for new dads, built by a small team of parents who needed it themselves. Small, science-backed moves with your partner, not big talks.