Loans are basically money you borrow now and repay over time, usually with interest and fees. The main types differ by what you're borrowing for, whether the loan is secured by something, and how repayment works.
Common types of loans
Loan typeWhat it's used forHow it works
Personal loanLarge expenses, debt consolidation, emergenciesUsually fixed amount, fixed interest rate, and fixed monthly payments
MortgageBuying a homeUsually repaid over 15–30 years; the home serves as collateral
Auto loanBuying a carThe vehicle typically serves as collateral; payments are usually monthly
Student loanEducation expensesOften has special repayment options; some don't require payments while you're in school
Credit cardEveryday purchasesYou borrow repeatedly up to a credit limit; interest applies if you carry a balance
Home equity loanLarge expenses using home equityYou borrow against the equity in your home, typically receiving a lump sum
HELOCFlexible borrowing against home equityWorks more like a credit line—you can borrow and repay repeatedly during the draw period
Payday loanVery short-term cash needsUsually due quickly and can carry extremely high costs
Business loanStarting or expanding a businessCan be secured or unsecured and may have fixed or variable rates
The two big categories
1. Secured loans
The lender has collateral—something it can potentially take if you don't repay.
Examples:
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Mortgage → house
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Auto loan → car
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Some personal loans → savings account or other assets
Because the lender has collateral, secured loans often have lower interest rates than comparable unsecured loans.
2. Unsecured loans
There's no specific asset securing the loan.
Examples:
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Most personal loans
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Credit cards
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Many student loans
Because the lender takes more risk, the interest rate can be higher.
How a typical loan works
Suppose you borrow $20,000 at a fixed interest rate.
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The lender gives you $20,000.
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You make scheduled payments, often monthly.
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Each payment generally goes toward interest + principal.
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Early in a typical amortizing loan, a larger portion of the payment goes toward interest.
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As the balance falls, more of each payment goes toward principal.
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Once the principal and interest are paid, the loan is finished.
Your actual cost isn't just the amount borrowed. Look at the APR (annual percentage rate) because it can incorporate the interest rate plus certain fees.
What determines your loan cost?
Lenders commonly consider:
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Credit score/history
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Income and employment
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Existing debts
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Loan amount
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Loan term
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Collateral
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Interest rate
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Fees
A longer loan term usually means lower monthly payments but more total interest. A shorter term generally means higher monthly payments but less interest overall.
Simple example: A $20,000 loan at 8% for 5 years has payments of roughly $406/month, and you'd pay about $4,332 in interest over the life of the loan, assuming monthly amortization and no fees.
