What Is a Loan?
A loan is a sum of money that you borrow from a lender and agree to repay over time, usually with interest. Loans can come from banks, credit unions, online lenders, government programs, or other financial institutions. The borrower receives funds upfront and repays the lender according to a set schedule.
Loans are commonly used for major purchases, education, home improvements, or consolidating debt. The specific terms of a loan—such as the interest rate, repayment period, and any fees—are outlined in a loan agreement, which is a binding contract between you and the lender.
Principal and Interest
The principal is the original amount of money you borrow. For example, if you take out a $10,000 personal loan, the principal is $10,000. Interest is the cost you pay for borrowing that money, expressed as a percentage of the principal over a specific period, usually a year. Interest is how lenders make a profit on the loan.
Your monthly payment typically goes toward both interest and a portion of the principal. Early in the loan term, a larger share of your payment may go toward interest, with less reducing the principal. Over time, as the principal decreases, the interest portion shrinks and more of your payment goes toward paying down the balance.
- Principal: the amount you borrowed.
- Interest: the cost of borrowing, calculated as a percentage of the principal.
APR vs. Interest Rate
The interest rate is the basic cost of borrowing, expressed as a percentage. The annual percentage rate (APR) is a broader measure that includes the interest rate plus certain fees and costs associated with the loan, such as origination fees or closing costs. Because APR accounts for these additional costs, it gives you a more complete picture of what you'll pay over the life of the loan.
When comparing loan offers, the APR is often a better benchmark than the nominal interest rate alone, because it reflects the true annual cost. However, the way fees are included can vary by lender, so it's important to read the loan details carefully.
Loan Term and Amortization
The loan term is the length of time you have to repay the loan, such as 3, 5, 10, or 30 years. A longer term usually means smaller monthly payments, but you'll pay more in interest over the life of the loan. A shorter term means higher monthly payments but less total interest.
Amortization is the process of paying off a loan through scheduled, regular payments. Each payment is split between interest and principal, and the ratio changes over time according to an amortization schedule. For a fixed-rate loan, the payment amount stays the same, but the portion going to interest decreases while the portion going to principal increases over the life of the loan.
Common Loan Fees
In addition to interest, loans may come with various fees. An origination fee is charged by the lender for processing the loan, usually a percentage of the loan amount. Other common fees include application fees, late payment fees, prepayment penalties, and closing costs (for mortgages). These fees can add to the total cost of the loan, so it's important to ask about them upfront.
- Origination fee: charged by the lender for processing the loan.
- Application fee: may cover the cost of reviewing your application.
- Late payment fee: charged if you miss a payment deadline.
- Prepayment penalty: a fee for paying off the loan early, if the lender charges one.
Secured vs. Unsecured Loans
Loans are often categorized as secured or unsecured. A secured loan is backed by collateral, such as a home (for a mortgage) or a car (for an auto loan). If you fail to repay, the lender can seize the collateral. Because the lender has that security, secured loans typically have lower interest rates.
An unsecured loan, such as a personal loan or most student loans, is not backed by collateral. The lender relies on your creditworthiness and income to decide whether to lend. Because there's no collateral, unsecured loans generally have higher interest rates and stricter credit requirements. If you default, the lender can take legal action to collect, but they can't automatically take your property.
Frequently asked questions
What is the difference between APR and interest rate?
The interest rate is the basic annual cost of borrowing, expressed as a percentage. The APR includes the interest rate plus certain fees and costs, giving you a more complete measure of the loan's annual cost. When comparing loans, the APR is often a better indicator of the true cost because it factors in fees.
How does amortization work?
Amortization is the process of repaying a loan in regular installments, where each payment is split between interest and principal. Early in the loan, a larger portion of your payment goes toward interest; as the principal decreases, more of your payment goes toward principal. For a fixed-rate loan, the payment stays the same, but the interest and principal portions change over time.
What is a loan origination fee?
A loan origination fee is a charge by the lender for processing a new loan, usually calculated as a percentage of the loan amount. It covers the cost of underwriting and administrative work. You may pay it upfront or have it deducted from the loan proceeds. Not all loans have origination fees, and they are included in the APR when comparing offers.
What does it mean if a loan is unsecured?
An unsecured loan is not backed by collateral, such as a home or car. Because there's no asset securing the loan, lenders take on more risk, so they typically charge higher interest rates and require good credit. If you default, the lender can sue or send the debt to collections, but they cannot automatically repossess your property.
How do I compare loan offers?
To compare loan offers, look at the APR, which includes both the interest rate and fees, as well as the loan term, monthly payment, and total cost over the life of the loan. Also consider any prepayment penalties or other fees. The offer with the lowest APR and favorable terms that fit your budget may be the best choice.