Getting a Copy of the Contract Under TILA, the dealer is required to give the customer a copy of the contract to keep at the time the customer signs the retail installment sale contract whether you want to incur the debt on these terms.
(A) An "installment contract" is one which requires or authorizes the delivery of goods in separate lots to be separately accepted, even though the contract contains a clause "each delivery is a separate contract" or its equivalent.
Generally, you will use Form 6252 to report installment sale income from casual sales of real or personal property during the tax year. You will also have to report the installment sale income on Schedule D (Form 1040), Form 4797, or both.
To elect out, report the sale on Schedule D (540 or 540NR), California Capital Gain or Loss Adjustment; Schedule D (541, 565, 568), Capital Gain or Loss; Schedule D (100S), S Corporation Capital Gains and Losses and Built-In Gains; or Schedule D-1, Sales of Business Property, whichever applies.
Use Form 6252, Installment Sale Income to report an installment sale in the year the sale occurs and for each year of the installment obligation. You may need to attach Form 4797 and Schedule D (Form 1040) to your Form 1040, U.S. Individual Income Tax Return or Form 1040-SR, U.S. Tax Return for Seniors.