Installment Loan

An installment loan is consumer credit advanced as a fixed amount and repaid in a series of scheduled payments over a stated term. The amount is set when the loan is signed, the payments retire it on a known date, and nothing you repay becomes available to borrow again.

The name is a market label rather than a legal one, and the law's corresponding category is broader. Regulation Z defines closed-end credit at 12 CFR 1026.2(a)(10) purely by subtraction, as "consumer credit other than 'open-end credit' as defined in this section", and open-end credit at (a)(20) as a plan in which the creditor contemplates repeated transactions, may impose a finance charge from time to time on an outstanding unpaid balance, and in which "the amount of credit that may be extended to the consumer during the term of the plan (up to any limit set by the creditor) is generally made available to the extent that any outstanding balance is repaid". Anything without that third feature is closed-end. So every installment loan is closed-end credit, and the converse does not hold: a loan repayable in one lump sum is closed-end credit with no installments in it at all.

The category is a repayment structure, not a product, which is why it spans things a borrower would never group together. A mortgage, a car loan, a federal student loan, an unsecured personal loan and a credit-builder loan are all installment loans. What they share is that the sum is fixed at consummation and the balance can only fall. What they do not share is the consequence of not paying, which turns on whether a lien was granted. That distinction, between secured and unsecured debt, does more to determine a borrower's exposure than the installment structure does, and the published material on each of those instruments carries the specifics.

The disclosure regime is the practical difference from a revolving account, and it is easy to miss because it happens once. Closed-end credit is disclosed under 12 CFR 1026.17 and 1026.18. Section 1026.17(b) requires the creditor to make the disclosures "before consummation of the transaction", and 1026.18 prescribes their content: the identity of the creditor, the amount financed with a description such as "the amount of credit provided to you or on your behalf", the finance charge described as "the dollar amount the credit will cost you", the annual percentage rate described as "the cost of your credit as a yearly rate", the payment schedule and total of payments, and the answer to the prepayment question. Open-end credit runs on an entirely different chapter, 12 CFR 1026.5 through 1026.16, built around account-opening disclosures plus a periodic statement every billing cycle.

The consequence is worth stating plainly. On a revolving account, the terms and the arithmetic are re-presented to you every month, because they can change and because the balance moves. On an installment loan the disclosure is a single document handed over before signing and never repeated, because nothing in it is going to change. That is what makes the closed-end disclosure the one to keep, and it is why the annual percentage rate is doing genuinely comparative work on this kind of credit while a card's APR is not. Note one carve-out: 1026.18 applies to each transaction "other than a mortgage transaction subject to § 1026.19(e) and (f)", so most closed-end mortgages get their own set of forms rather than this table.

A short installment arrangement can sit outside Regulation Z altogether, and the threshold is a number. The obligations above attach to a creditor, and 12 CFR 1026.2(a)(17)(i) defines one as a person who regularly extends consumer credit "that is subject to a finance charge or is payable by written agreement in more than four installments (not including a down payment)", and to whom the obligation is initially payable. Two limbs, either of which will do. So a no-charge arrangement of four or fewer installments falls outside the definition on the regulation's own terms, which is the reason the status of short split-payment plans at the checkout has been argued about. The volume test is not the escape route: (a)(17)(v) treats a person as regularly extending consumer credit if it did so more than 25 times in the preceding calendar year, or more than five times for credit secured by a dwelling.

What "installment" does not tell you about the interest. The structure fixes when payments are due; it does not by itself say how interest is computed. Most consumer installment loans accrue interest on the balance actually outstanding from day to day, and some older or specialist paper is precomputed, with the total interest written into the note at the start. Which one you have decides whether paying early saves anything. The published material on simple interest and on amortization sets out both mechanics, and the split inside a level payment.

The lender approves a specific amount for a specific term and gives you the required disclosures before you sign. The money is advanced, less any fee taken out of the proceeds. Each scheduled payment covers the interest accrued since the last one and applies the remainder to principal, so the balance falls on a schedule set at the outset and the loan ends on its own.

A hypothetical example, in three versions of the same $600, because the boundaries are where the definitions actually bite.

One payment. A lender advances $600 and takes a single payment of $660 in 60 days. Nothing replenishes, so this is closed-end credit under 1026.2(a)(10). The $60 difference is a finance charge, so the lender is a creditor under 1026.2(a)(17)(i) and owes the closed-end disclosures. But there are no installments in it, so it is not an installment loan. Closed-end credit is the wider idea.

Four payments. The same $600 repayable in four monthly payments of $150, with no charge of any kind. Now it is an installment arrangement, and it is still closed-end credit, but neither limb of the creditor definition is met: no finance charge, and four is not more than four. The Regulation Z disclosures do not attach.

Five payments. The same $600 over five monthly payments of $120, still with no charge. Five is more than four, so the seller is a creditor for that transaction and must give the closed-end disclosures before consummation. One extra payment date, and a different body of law applies.

Pros

• The balance cannot re-grow, because there is no plan to draw on. The structure does work that discipline has to do on a revolving account.
• The payment and the payoff date are known at signing, which makes the obligation straightforward to plan around.
• The annual percentage rate on closed-end credit folds in certain financing costs, so it is a genuinely comparable figure between offers.
• The full cost is disclosed in dollars before you sign, including the finance charge and the total of payments.
• For the same borrower it usually prices below revolving credit, because the lender underwrote a defined sum.

Cons

• The money arrives all at once whether or not you need it all, and interest runs on the whole advance from day one.
• Lengthening the term lowers the payment and raises the total paid, so a comfortable payment can belong to a materially worse loan.
• There is no periodic statement regime like a card's, so the terms you were given before signing are the terms you have to keep track of.
• A secured installment loan puts a specific asset at risk, and "installment loan" as a label does not tell you whether yours is secured.
• Prepaying saves nothing on a precomputed loan in the way it does on one where interest accrues on the balance, and the paperwork rather than the label tells you which you have.
• A short arrangement of four or fewer no-charge installments may carry none of the Regulation Z disclosures at all.