Anyone who has recently applied for a mortgage knows that lenders are already looking much more closely at your financial affairs. But soon, they’ll be able to easily delve into the deepest recesses of your financial life, accessing information that never before appeared on your credit report.

Late payments are the “biggest foul” when it comes to credit cards, warns Ben Woolsey, director of marketing and consumer research at CreditCards.com — the consequences can include late fees, jacked-up interest rates and a lower credit score.