It's common these days for mortgage servicers to accept online payments directly through their websites. Check your mortgage statement for the company's official website. Then, register for an online account and connect your checking account. Make sure to enroll several days before your payment is due since it may take that long for your accounts to link up. Once the sign-up process is complete, you'll be able to schedule your payment. Alternatively, your checking account may offer an online bill-pay service that you can use to pay your mortgage. Make sure to find out how far in advance you need to schedule your payment for your loan servicer to receive it on time.