Financial Accounting · Hire Purchase and Installment Sale Transactions

Installment Payment System: Accounting Entries and Difference from Hire Purchase

Updated 10 October 2026 · Fact-checked

In the installment payment system (installment sale), the buyer becomes owner at the time of sale and pays the price in installments. The seller records a normal credit sale, and the buyer records a purchase or asset at cash price, with interest as a separate finance cost. The seller cannot repossess under a hire purchase right.

Understand Installment Payment System

In an installment sale, goods are sold and delivered, and ownership passes to the buyer immediately. The buyer pays the price in parts over time. The price usually includes interest for the credit period, so total installments exceed the cash price.

Because ownership has already passed, the seller treats the deal as a credit sale. The seller does not keep the goods on its books. It records sales and a debtor. Each installment received reduces the debtor, and the interest part is recognised as interest income over the period.

The buyer treats the deal as a purchase on credit. If the item is an asset, the buyer debits the asset at cash price and credits the seller. Interest is not part of the asset cost. It is charged to the Profit and Loss Account as each installment falls due. The buyer charges depreciation on the asset in the normal way.

The key contrast is with hire purchase. In hire purchase, the hirer is only a bailee until the last installment is paid. Ownership passes only on the final payment, and the seller can take the goods back if the hirer defaults. In installment sale, the buyer is the owner from day one, and the seller can only sue for the unpaid price. It cannot take the goods back unless the contract separately allows it.

The two are often confused in exams because the cash flows look alike. Always check the wording: if the question says ownership passes on sale, or the buyer is free to resell, it is an installment sale.

Key rules to remember

Total installment price: Total installment price = Cash price + Total interest; Interest is the amount charged for credit. Total interest = Down payment + Total of all installments − Cash price.
Interest on outstanding balance: Interest for a period = Outstanding cash price balance × Rate of interest × Time; Use the balance outstanding at the start of the period, after the down payment. Use the rate given.
Cash price part of an installment: Principal in installment = Installment − Interest in that installment; This part reduces the outstanding cash price balance.
Buyer's asset cost: Asset debited = Cash price; Interest is never capitalised under the full cash price approach; it goes to the Profit and Loss Account.
Seller's journal entry on sale: Buyer A/c Dr. (cash price) ; To Sales A/c; Ownership has passed, so the seller records sales at once. Interest is recorded as income when earned or due.

How to solve Installment Payment System questions

Use this order for any installment sale question. It keeps the interest and principal split clean and gives step marks.

1Read the facts and confirm ownership passes at the time of sale. Then treat it as installment sale, not hire purchase.
2Note the cash price, down payment, number and amount of installments, and the interest rate or total interest.
3Find the balance of cash price after the down payment. This is the amount on which interest runs.
4Prepare a table for each installment: opening balance, interest, installment paid, principal repaid, closing balance.
5Pass the seller's entries: debtor and sales at cash price, cash received, and interest income.
6Pass the buyer's entries: asset or purchases at cash price, payment of down payment, interest expense, and payments to the seller.
7Charge depreciation on the asset in the buyer's books at the given rate on cash price.
8Write the ledger accounts or the Balance Sheet extract asked for, and check that the closing balance agrees with the table.

Quickest way: Table first, entries second

When to use it: Use this when time is short and the question asks for entries or ledger accounts over several years.

Compute total interest as down payment plus total of installments minus cash price, if not given.
If the rate is not given, work out the rate implied by the installments and apply it to the opening balance each year. If the question asks for a simple apportionment, spread the total interest over the years in proportion to the outstanding balance at the start of each year.
Build one table with opening balance, interest, installment, closing balance.
Read each year's entries directly from the table: interest is an expense for the buyer and income for the seller.
Check the last closing balance is nil. If not, recheck the interest.

Common mistakes in Installment Payment System

Treating the deal as hire purchase and showing the goods as still owned by the seller.
Installment sale and hire purchase look alike because both involve periodic payments.
Fix: Check when ownership passes. If at sale, the seller records sales and the buyer records the asset immediately.
Capitalising the interest in the buyer's asset account.
Students add all installments to get the asset cost.
Fix: Debit the asset at cash price only. Charge interest to Profit and Loss as it accrues.
Charging interest on the full cash price instead of the outstanding balance after the down payment.
The down payment is overlooked when the table is started.
Fix: Deduct the down payment first. Run interest only on the balance remaining unpaid at the start of each period.
Depreciating the asset on total installment price.
The total payable looks like the cost.
Fix: Base depreciation on cash price, which is the asset's cost to the buyer.
Passing repossession entries in an installment sale.
Students carry over the hire purchase default rules.
Fix: The seller cannot repossess merely for non-payment. It treats the unpaid amount as a debtor and sues or provides for doubtful debt.

Worked examples

Example 1

On 1 April 2026, Shree Traders sold a machine to Kaveri Industries for a cash price of ₹3,31,000, payable in three yearly installments of ₹1,33,100 each, the first being due on 31 March 2027. Interest at 10% p.a. on the outstanding balance is included in the installments. Ownership passes on sale. Show the interest and principal split and the entries in the buyer's books for the first year. Depreciation is 10% p.a. on cost.

Show the solution

Interest year 1 = ₹3,31,000 × 10% = ₹33,100. Principal repaid = ₹1,33,100 − ₹33,100 = ₹1,00,000. Closing balance = ₹3,31,000 − ₹1,00,000 = ₹2,31,000.
Interest year 2 = ₹2,31,000 × 10% = ₹23,100. Principal = ₹1,33,100 − ₹23,100 = ₹1,10,000. Closing = ₹1,21,000.
Interest year 3 = ₹1,21,000 × 10% = ₹12,100. Principal = ₹1,33,100 − ₹12,100 = ₹1,21,000. Closing = nil, so the table agrees with the data.
On 1 April 2026, buyer: Machinery A/c Dr. ₹3,31,000 To Shree Traders ₹3,31,000.
On 31 March 2027: Interest A/c Dr. ₹33,100 To Shree Traders ₹33,100; Shree Traders Dr. ₹1,33,100 To Bank ₹1,33,100.
Depreciation: Depreciation A/c Dr. ₹33,100 To Machinery A/c ₹33,100 (10% × ₹3,31,000).
Machinery in Balance Sheet at 31 March 2027 = ₹3,31,000 − ₹33,100 = ₹2,97,900. Amount due to Shree Traders = ₹3,31,000 + ₹33,100 − ₹1,33,100 = ₹2,31,000.

Answer: Year 1 interest ₹33,100; principal ₹1,00,000; balance due to seller ₹2,31,000; machinery ₹2,97,900 after depreciation of ₹33,100.

Example 2

Mehta Furniture sold goods to Anil on installment basis on 1 January 2026. Cash price ₹60,000. Anil paid ₹20,000 at once and the balance in two equal yearly installments of ₹25,000 each, first due on 31 December 2026. Ownership passed on sale. The rate of interest is not given. Find the total interest and the interest in each year using the rate implied by the installments, and show the seller's entries on 31 December 2026.

Show the solution

Total paid = ₹20,000 + 2 × ₹25,000 = ₹70,000. Total interest = ₹70,000 − ₹60,000 = ₹10,000.
Balance of cash price after down payment = ₹60,000 − ₹20,000 = ₹40,000. This is the present value of the two installments.
Find the implied rate r from ₹40,000 = ₹25,000 ÷ (1 + r) + ₹25,000 ÷ (1 + r)². Let x = 1 ÷ (1 + r). Then x + x² = 1.6, so x = (−1 + √7.4) ÷ 2 ≈ 0.86015. This gives r ≈ 16.26% p.a.
Year 1 interest = ₹40,000 × 16.26% ≈ ₹6,504. Principal = ₹25,000 − ₹6,504 = ₹18,496. Closing balance = ₹40,000 − ₹18,496 = ₹21,504.
Year 2 interest = ₹21,504 × 16.26% ≈ ₹3,496. Principal = ₹25,000 − ₹3,496 = ₹21,504. Closing balance = nil. Total interest = ₹6,504 + ₹3,496 = ₹10,000, which agrees with step 1.
On 1 January 2026 seller: Anil Dr. ₹60,000 To Sales ₹60,000; Bank Dr. ₹20,000 To Anil ₹20,000.
On 31 December 2026: Anil Dr. ₹6,504 To Interest Income ₹6,504; Bank Dr. ₹25,000 To Anil ₹25,000. Balance due from Anil = ₹40,000 + ₹6,504 − ₹25,000 = ₹21,504.

Answer: Total interest ₹10,000; implied rate about 16.26%; year 1 interest about ₹6,504 and year 2 about ₹3,496; seller records sales of ₹60,000 at once and receives ₹25,000 on 31 December 2026, leaving ₹21,504 due from Anil.

Exam tips

Underline the words 'ownership passes' in the question. They decide the treatment and the first mark.
Show the interest table even if it is not asked. Examiners award step marks for it.
Mention the difference from hire purchase in one line when the question asks for a comparison: ownership, repossession, and risk of the seller.
If the rate is not given, state your assumption clearly and compute interest on the outstanding balance.
For MCQs, look for options that capitalise interest or let the seller repossess. These are usually wrong.

Practice questions from Hire Purchase and Installment Sale Transactions

Installment Payment System: frequently asked questions

What is the difference between installment sale and hire purchase?

In installment sale, ownership passes to the buyer at the time of sale. In hire purchase, ownership passes only after the last installment is paid. The hire purchase seller can repossess goods on default, but the installment seller can only sue for the price.

How does the seller record an installment sale?

The seller records it as a credit sale. It debits the buyer and credits Sales at the cash price. Each installment received is credited to the buyer, and interest is shown as interest income.

At what value does the buyer record the asset?

The buyer records the asset at cash price. Interest included in the installments is charged to the Profit and Loss Account as it accrues, and not added to the asset cost.

Can the seller take back goods if the buyer fails to pay in an installment sale?

Not by default. Since ownership has passed, the seller treats the unpaid amount as a debt and can recover it by legal action. Repossession rules belong to hire purchase.