If you are unable to repay a payday loan on time, you may face a number of consequences. These can include additional fees and interest charges, damage to your credit score, harassment from debt collectors, and even legal action. It is important to contact the lender as soon as possible to discuss your options and try to work out a repayment plan. Ignoring the loan or failing to communicate with the lender can lead to further financial difficulties and potentially more serious repercussions.