What is a Top Up loan? 13 September 2022 11:26 Updated A Top Up loan is a new loan which combines any existing balance with an additional amount you wish to borrow. Related articles How long will it be until I get my Top Up money? How does a Top Up loan work? Likely Loan customer - Why have I been sent to this website? Why have I been offered a chance to top up my loan? Will applying for a Top Up loan affect my credit file?