What it means
Imagine a company sells equipment for $121,000 with payment due in two years and no interest mentioned in the contract. Waiting two years has a cost, because money received later is worth less than money received today.
The price on paper is therefore higher than the real price, and the difference is interest even though no one called it that. Accounting treats the sale as two things, a sale at today's value and a loan that earns interest over the waiting period.
Today's value is found by discounting the future payment at a market interest rate, which is the rate that would be charged on a similar loan between unrelated parties. The discount is the unstated interest, and it is spread over the life of the loan.
Tax rules take a similar view. Many tax systems include provisions that treat part of a deferred payment as interest if the contract charges too little, so that parties cannot turn taxable interest into a capital gain or avoid tax on loans between related parties.
The minimum rate is typically set by reference to a government-published rate that is updated regularly. The point matters in practice for loans between companies and their owners, seller-financed sales, long-dated receivables and leases.
If interest is ignored, assets and revenue are overstated at the start and interest income is understated later. Auditors look for these arrangements when payments are far in the future and the contract mentions no rate.
Finance teams should therefore ask two questions on any deal with deferred payment. What is the fair market rate for a loan of this size and risk, and does the stated price already include interest?
Where there is no good answer, they should record the transaction at its discounted value.
In practice
Real-world examples.
Example
A manufacturer sells machinery to a customer for $242,000 payable in two years and states no interest. The accountant discounts the receivable at a market rate of 10% and records the sale at $200,000. The remaining $42,000 is recognised as interest income over the two years.
Example
A founder lends her company $50,000 and charges no interest for three years. The tax authority may treat part of the arrangement as interest, which could create taxable income for her and a deduction for the company. Their advisers document a fair rate in a loan agreement.
Example
A property seller agrees to take payment five years after closing and sets a price of $1,000,000 with no interest term. The buyer's accountant calculates the present value at a market rate and records the property at the lower amount. The difference is shown as interest expense over the five years.
Formula
Calculation
Unstated interest = total future payments - present value of those payments
Present value = future payment / (1 + market rate) ^ number of years
Suppose a company sells equipment for a single payment of $121,000 due in two years with no stated interest. The market rate for similar loans is 10%. Present value = 121,000 / (1.10 x 1.10) = 121,000 / 1.21 = $100,000. Unstated interest = 121,000 - 100,000 = $21,000. Interest income in year 1 is 100,000 x 10% = $10,000, so the balance becomes $110,000, and in year 2 it is 110,000 x 10% = $11,000, bringing the total to $121,000.Case study
Seen in the real world.
Ironbridge Engineering is an illustrative, fictional business that sold a used crane to a customer on terms of one payment of $330,000 in three years, with no interest. At first the bookkeeper recorded $330,000 of revenue on the day of the sale.
The auditor objected. Using a market rate of 10%, the present value was about $248,000, so revenue had been overstated by roughly $82,000, and interest income would arise only gradually over the three years.
The company restated the transaction, recording the crane sale at present value and building up interest each year. The illustrative lesson is that a deferred payment without interest is still a loan, and the accounts must show it that way.
Watch out
Common mistakes.
- Recording the full future payment as revenue today, when part of it is interest earned over the waiting period.
- Assuming that a zero-interest loan has no interest cost, when the time value of money means the cost is simply hidden in the price.
- Using the wrong discount rate, when the rate should reflect similar loans on market terms for a borrower of that risk.
Questions
People also ask.
Does unstated interest apply to short-term payments?
Often not, because accounting standards generally exempt trade receivables and payables due within about a year, since the effect is small.
Does it matter for tax?
Yes, many tax systems recharacterise part of a deferred payment as interest if the contract rate is too low.
How is unstated interest recorded over time?
It is recognised gradually as interest income or expense, using the market rate on the opening balance each period.
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