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.
An installment contract is a single contract that is completed by a series of performances –such as payments, performances of a service, or delivery of goods–rather than being performed all at one time.
Contact The Original Leasing Dealer Some dealers will keep copies on file for reference, but even if they do not have it on hand, they should be able to get you the proper contact information so you can obtain it.
Electing Out of the Installment Method. If you elect not to use the installment method, you generally report the entire gain in the year of sale, even though you don't receive all the sale proceeds in that year.
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.
Reporting the sale on your tax return 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're required to report gain on an installment sale under the installment method unless you "elect out" on or before the due date for filing your tax return (including extensions) for the year of the sale.