A retail installment contract is an agreement in which a buyer pays the seller for goods or services over time, rather than borrowing from a separate lender. The seller extends the credit itself. These contracts are mainly governed by state retail installment sales acts, which differ by state in what they cover and what the contract must say. Federal law can apply on top. Under Regulation Z, a sale in which the seller is a creditor is a credit sale (12 CFR 1026.2(a)(16)), and its disclosures include the total sale price.
What is a retail installment contract?
It is a written agreement for a sale paid in installments. The buyer gets the goods or service now and pays the seller over time. The seller is the one extending credit, so no bank or finance company is involved at the start.
The name comes from state law. Many states have a retail installment sales act that sets rules for these contracts. The acts vary in which sales they cover, what the contract must disclose, and what charges are allowed.
How is it different from a loan?
With a loan, a lender pays the seller and the customer repays the lender. With a retail installment contract, there is no separate lender. The customer owes the seller directly.
| Retail installment contract | Loan from a lender | |
|---|---|---|
| Who extends credit | The seller | A separate lender |
| Who the customer pays | The seller | The lender |
| Main rules | State retail installment sales acts, plus federal rules where they apply | State lending law, plus federal rules |
Is a business payment plan a retail installment contract?
It can be. A written plan for goods or services, paid to the seller over time, has the same basic shape. Whether your state's act covers it depends on that act's own definitions of the sales and sellers it reaches. Read your own state's act, or ask counsel, before you assume it does or doesn't apply.
Which federal rules can apply?
Regulation Z, which implements the Truth in Lending Act. It calls a sale on credit by the seller a credit sale: "a sale in which the seller is a creditor" (12 CFR 1026.2(a)(16)).
A seller is a creditor when it regularly extends consumer credit that has a finance charge or is payable by written agreement in more than four installments, not counting a down payment (1026.2(a)(17)(i)). See Truth in Lending Act for the full test.
When it applies, the disclosures for a credit sale include:
- The payment schedule: "the number, amounts, and timing of payments scheduled to repay the obligation" (1026.18(g)).
- The total of payments (1026.18(h)).
- The total sale price, "including the amount of any downpayment" (1026.18(j)). It is the cash price plus other amounts financed plus the finance charge.
- Any late payment charge (1026.18(l)).
Business-purpose credit is exempt from Regulation Z (1026.3(a)(1)). State acts set their own scope.
What does a retail installment contract usually include?
State acts set the required terms, so the list differs by state. A working agreement usually covers the parties, what is being bought, the cash price, any down payment, the amount still owed, the schedule, and what happens on a missed payment. The payment plan agreement entry has a working checklist.
General information, not legal advice.
- CFPB: Regulation Z, 12 CFR 1026.2, Definitions
- CFPB: Regulation Z, 12 CFR 1026.3, Exempt transactions
- CFPB: Regulation Z, 12 CFR 1026.18, Content of disclosures
Every figure on this page was checked against these sources on Oct 6, 2026. General information, not legal or tax advice.