Both products solve the same problem, a shortfall now, and they price it in opposite ways. A payday loan charges a flat fee for about two weeks. An installment loan charges interest on a declining balance for months. Which is cheaper depends almost entirely on one thing: whether you can genuinely clear the whole amount out of one paycheck.
Written by the Loan For Any Purpose USA lending team. Reviewed by the Loan For Any Purpose Editorial Review Team. Last reviewed September 10, 2026. We explain products we do not sell as well as the ones we do.
Side by side
| Payday loan | Installment loan | |
|---|---|---|
| Amount | $200–$1,000 | $500–$5,000 |
| Repayment | One payment, 14–30 days | 3–24 monthly payments |
| Cost basis | $15–$25 per $100 borrowed | APR on the outstanding balance |
| Representative APR | 261%–652% | 59%–199% |
| Balance over time | Unchanged until the due date | Falls with every payment |
| Reported to credit bureaus | No | Yes |
| Funding | Same day | Next business day |
The same $500, two ways
Borrow $500 and repay it in 14 days at $15 per $100: you pay $75, total $575, and it is over. Borrow $500 as a 6-month installment loan at 99% APR: the payment is about $108.98 and you pay roughly $154 in interest.
The payday loan costs less in dollars. That is the honest answer whenever the loan is genuinely repaid once, on time. The comparison changes the moment it is not.
| Scenario on $500 | Cost of credit |
|---|---|
| Payday loan, repaid once in 14 days | $75 |
| Payday loan, renewed three times (8 weeks) | $300, principal still owed |
| Payday loan, renewed six times (14 weeks) | $525, principal still owed |
| Installment loan, 6 months at 99% APR | $154, principal cleared |
Which to choose
A payday loan fits when
- The amount is under $1,000 and clearly covered by one paycheck.
- The need is genuinely one-off, not a recurring monthly gap.
- You need the money today and the alternative is a larger late fee or a reconnection charge.
An installment loan fits when
- The amount is more than a single paycheck can absorb.
- You want the balance to actually fall rather than sit still.
- A predictable monthly figure is easier to budget than one large debit.
- You want the payments reported to the credit bureaus.
Run your own numbers
The payday loan APR calculator converts any fee into an annual rate and shows the installment equivalent side by side. Our products: payday loans and installment loans.
Frequently asked questions
Is a payday loan or an installment loan cheaper?
For an amount you can genuinely repay out of one paycheck, a payday loan usually costs fewer dollars: $75 on $500 for 14 days. If the loan has to be renewed even once, the installment loan is cheaper, and by a wide margin after three renewals.
Why is payday loan APR so much higher?
APR expresses cost as a yearly rate, and a payday loan lasts about two weeks. The fee is 15% of the amount borrowed; annualised, that becomes 391%. It is the correct basis for comparing loans of different lengths.
Can I convert a payday loan into an installment loan?
Not directly, but in states that require it we offer an extended payment plan at no extra charge if you cannot repay on the due date. Contact us before the due date rather than after.
Which one helps my credit?
Installment loans. We report installment and personal loan payments to one or more major credit bureaus. Payday loans are not reported, so repaying one does not build credit history.
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