While this is a valid question, you will need to ask the lender you work with how they can accept payments. Some lenders may require you to mail in a check each month or allow you to mail a check if you prefer this method. Sending cash in the mail is not recommended. Most online loans and even traditional loans can be paid online. You may even score a rate discount for setting up automatic payments online. Online payments are usually preferred by lenders and can benefit the lender and the borrower. For the borrower, online payments can provide quick confirmation of payment. In addition, you can save the hassle of mailing a check ahead of time and calling to make sure the lender received payment. For the lender, online payments can keep cash flow healthier. It can also save the lender the hassle of mailing paper statements and collecting payments via mail. Before signing up for a loan, you should know how to make payments and find out if there are any incentives for setting up automatic payments.