Generally, it takes about 30-45 days for your new account to be reported to the credit bureaus. From there, each month you pay off your card balance, your credit builds.
You establish your secured card account with a deposit when you open it. Each month you pay off your balance. If something happens and you can’t make the payment, your deposit is used to pay your balance.
Secured credit cards allow you to qualify with subpar or no credit, and you build your credit every time you use your card. That makes secured cards an excellent way to establish or improve credit history.