Advertiser Disclosure

What Is an Installment Loan? How It Works and Where to Get One

Borrow once, repay in fixed payments. Here is how installment loans work, what they cost right now, and the lenders we would actually use.

An installment loan is money you borrow once and pay back in equal, scheduled payments until the balance hits zero. Mortgages, auto loans, student loans and personal loans all work this way. The payment is set on day one, so you always know what leaves your account each month and exactly when the loan ends. That predictability is the whole point. It is also what separates an installment loan from credit cards and other revolving credit, where the balance and the payment move every month. This guide covers how installment loans work, what they cost as of this update, how they affect your credit score, and where to get one online without paying payday-loan prices.
Next stepSee the best personal loans right now →Rates from about 6% APR at the lenders we track, most fund within a day or two.

What Is an Installment Loan?

You get the full amount up front. You repay it over a fixed term in regular installments, almost always monthly. Each payment covers that month's interest plus a slice of the principal, and the mix shifts toward principal as you go. When the last payment clears, the account closes. Most installment loans carry a fixed interest rate, so the payment never changes. Some, like adjustable-rate mortgages and certain private student loans, use a variable rate that moves with an index such as the prime rate. If the rate is variable, your payment can go up. Ask before you sign. Federal law calls this “closed-end credit.” Under the Truth in Lending Act (Regulation Z, 12 CFR 1026.18) the lender has to show you the amount financed, the finance charge in dollars, the APR, the total of payments, the payment schedule and whether there is a penalty for paying early, all before you commit. A lender that will not put those numbers in front of you is not one to borrow from.

Installment Loan vs. Revolving Credit

Revolving credit is a line you can use, pay down and use again as long as you stay under the limit. Credit cards, personal lines of credit and HELOCs are revolving. Regulation Z defines open-end credit as a plan where the lender expects repeated transactions and the credit becomes available again as you repay it. An installment loan is the opposite: one draw, one payoff schedule, done.
Installment loanRevolving credit
How you borrowOne lump sumDraw as needed, up to a limit
PaymentFixed amount, fixed end dateChanges with the balance, no end date
RateUsually fixedUsually variable
What hurts your scoreLate paymentsLate payments and high utilization
ExamplesMortgage, auto, student, personalCredit cards, HELOC, lines of credit
The credit-score difference matters. On a card, your balance compared to your limit (utilization) counts against you as it climbs, and Equifax puts the line most lenders want under 30%. On an installment loan the balance is expected to be high at the start, and the scoring models mostly care that you pay on time. That is why moving card debt into a fixed-rate installment loan often lifts a score even though you owe the same money.

Common Types of Installment Loans

Mortgages

A mortgage is the biggest installment loan most people ever take. Terms run 15 or 30 years, the house is the collateral, and the payment usually includes escrow for taxes and insurance on top of principal and interest.

Auto loans

Auto loans run from about 24 to 84 months, and the car is the collateral. A longer term lowers the payment and raises the total interest, so pick the shortest term you can comfortably carry.

Personal loans

Personal loans are usually unsecured, meaning nothing is pledged, and they run $1,000 to $100,000 over two to seven years depending on the lender. People use them to pay off credit cards, consolidate debt, refinance student loans or cover a repair. Our personal loans guide walks through how lenders decide who qualifies.

Student loans

Federal and private student loans are installment loans with a twist: payments usually start after you leave school, and federal loans offer income-driven plans that change the payment based on what you earn.

Buy now, pay later and small-dollar installment loans

A buy now, pay later plan that splits a purchase into four payments is technically a short installment loan, usually with no interest if you pay on time. At the other end of the spectrum are storefront “no credit check” installment loans. The CFPB notes that a typical two-week payday loan with a $15 fee per $100 borrowed works out to almost 400% APR, and payday-style installment loans are priced in the same neighborhood. Treat those as a last resort, not a plan.

What an Installment Loan Costs

Rates depend on the type of loan and your credit. The Federal Reserve's G.19 consumer credit release puts the average commercial bank rate on a 24-month personal loan at 11.86% for the second quarter of 2026. Credit card accounts that carried a balance averaged 22.15% in the same quarter. A fixed-rate personal loan is often cheaper than carrying the card balance, sometimes by half. Online lenders quote a wide range because they price by credit profile. As of this update, SoFi advertises fixed rates from 6.49% to 35.49% APR with its autopay and member discounts on loans of $5,000 to $100,000, with no origination fees required. Upstart advertises 6.3% to 35.99% APR on $1,000 to $75,000 over 3 or 5 year terms, and it does charge an origination fee, which is 8.15% on its own example loan. The top of those ranges is for thin or damaged credit. At 35% you should compare hard before you accept. Watch the fees, not just the rate. An origination fee comes out of the money you receive, so a $10,000 loan with an 8% fee puts $9,200 in your account while you repay $10,000 plus interest. The APR already includes that fee, which is why APR, not the interest rate, is the number to compare across offers.
Next stepCompare personal loan rates →Check your rate with a soft pull before you commit to anything.

Where to Get an Installment Loan Online

For $1,000 or more, the fastest legitimate route is an online personal loan. You check your rate, see the offer, e-sign, and the money usually lands within a business day or two. These are the lenders we work with and would use ourselves.
SoFi
  • $5,000 to $100,000
  • 6.49% to 35.49% fixed APR with autopay and member discounts
  • No origination fees required; same-day funding if you sign by 5:30 PM ET on a business day
Check your rate at SoFiBest if you need a larger amount and have decent credit.
Upstart
  • $1,000 to $75,000
  • 6.3% to 35.99% APR, 3 or 5 year terms
  • Looks past your score at income and other factors; funds sent in as fast as 24 hours
Check your rate at UpstartBest for smaller loans or a thin credit file. Expect an origination fee.
Your credit union or bank
  • Often the lowest rate if you already have an account there
  • Slower: a few days to a week
  • Federal credit unions cap loan rates under an NCUA ceiling, 18% APR as of this update
See more lendersWorth a call before you take a 30% APR offer.

Installment Loans for Bad Credit

A score under 600 does not shut you out. It raises the price. Lenders like Upstart say they weigh income and other factors beyond the score, and there are plenty of loan offers when you have a bad credit score. Expect the top of the APR range, a smaller loan and probably an origination fee. Three things should make you close the tab: a lender that will not show an APR before you sign, a lender that asks for a fee up front to “release” the loan, and anything that promises “guaranteed approval.” Real lenders never guarantee anything before they see your application.
Next stepSee our bad-credit loan picks →Free to compare, no hard credit pull to look.

Installment Loan or Cash Advance App?

If you need money and the amount is a few hundred dollars, an installment loan is the wrong tool. The smallest personal loans start at $1,000, take a hard credit pull, and charge interest for years. Cash advance apps advance up to a few hundred dollars against your next paycheck with no interest and no credit check, then take it back on payday. They are a different product from the payday loan apps that lend at payday rates, so read our comparison before you download anything.
Next stepSee today's cash advance apps →No interest, no credit pull, most fund within a day.

How an Installment Loan Affects Your Credit

Payment history is 35% of your FICO score and credit mix is another 10%, according to myFICO. An installment loan you pay on time every month feeds the biggest factor and adds an account type that many card-only files lack. Lenders report to the bureaus monthly, so the benefit builds slowly and the damage from a payment 30 days late lands fast. Applying costs you a hard inquiry, which sits in the 10% “new credit” slice and fades over a year. Most online lenders, including SoFi and Upstart, show you a rate with a soft pull first, and the hard pull only happens when you accept an offer. If you are borrowing mainly to build a score, a credit-builder loan does the same job for less money.

Can You Pay Off an Installment Loan Early?

Usually, yes, and it saves you interest because interest accrues on the balance you still owe. Regulation Z requires the lender to tell you in the loan disclosure whether a prepayment penalty applies, so look for that line before you sign. SoFi says no fees are required on its personal loans, and Upstart says there is no prepayment penalty. Some auto lenders and older mortgages still charge one. When you pay extra, tell the lender to apply it to principal. Otherwise some servicers treat the extra as next month's payment, which saves you nothing.

Pros and Cons of Installment Loans

Use one if
  • You need $1,000 or more for a specific purpose and want a fixed payment with an end date
  • You are carrying card debt at 20% or more and can qualify for a lower fixed rate
  • You want a predictable line item in a budget rather than a balance that creeps
Skip it if
  • You need a few hundred dollars for a few weeks; a cash advance app is cheaper and faster
  • The only offers you see are above 30% APR or carry an upfront fee; that is a sign to fix the credit first
  • The payment would not fit your budget for the full term, not just this month
The commitment is the tradeoff. A five-year loan is 60 payments, and the total interest on a long term can be more than you expect even at a fair rate. Run the total-of-payments number the lender is required to disclose, decide if that figure is worth what the money buys you, and then sign or walk.

Common Questions About Installment Loans

Where can I get an installment loan online right now?

For $1,000 or more, SoFi ($5,000 to $100,000, no origination fees required, same-day funding) and Upstart ($1,000 to $75,000, funds in as fast as 24 hours) are the two lenders we would check first. Both show you a rate before you commit. If you only need a few hundred dollars, a cash advance app is cheaper and faster than any loan.

Is an installment loan the same as a personal loan?

A personal loan is one type of installment loan. Every personal loan is repaid in fixed installments, but the installment loan category also covers mortgages, auto loans, student loans and buy now, pay later plans. Our personal loans guide covers how the personal loan version works.

Can I get an installment loan with bad credit?

Yes, but expect the top of the APR range, a smaller amount and an origination fee. Lenders like Upstart look at income and other factors beyond the score. Avoid anything that promises guaranteed approval or asks for a fee before you get the money. Our best bad-credit loans roundup shows what is realistic.

Do installment loans build credit?

They can. Payment history is 35% of a FICO score and credit mix is 10%, so an installment loan paid on time every month helps both. The account has to be reported to the bureaus, and one payment 30 days late does more damage than a year of on-time payments does good. If building credit is the only goal, a credit-builder loan does it for less.

Can I pay off an installment loan early?

Usually, and it saves interest because interest is charged on the remaining balance. Federal disclosure rules require the lender to state whether a prepayment penalty applies, so check that line in your loan agreement. SoFi and Upstart both say they do not charge one.

Brian Meiggs
Brian Meiggs founded My Millennial Guide and has spent over a decade writing about money. He tries every app and product before it goes on the site. No fluff, no guesswork. Named to the Northern Virginia 40 Under 40 earlier this year, and featured in WSJ, Business Insider, and Entrepreneur. Off the clock: chess, the gym, a quiet night in.