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Variable Consideration and the Constraint - IFRS 15 and ASC 606
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Variable Consideration and the Constraint - IFRS 15 and ASC 606

By Leash

What Is Variable Consideration?

Variable consideration is any part of the price in a contract with a customer that can change after the contract is signed: rebates, discounts, refunds, price concessions, performance bonuses, penalties, or fees that depend on a future event. Under IFRS 15 (and ASC 606), the entity does not wait for the uncertainty to resolve. It applies three steps:

  1. Estimate the amount to which it expects to be entitled, using the expected value or most likely amount method.
  2. Constrain the estimate, including only the amount for which it is highly probable that a significant reversal of cumulative revenue will not occur.
  3. Reassess the estimate at each reporting date, with changes recognised through a cumulative catch-up.

Variable consideration is one of the elements of the transaction price in step 3 of the five-step model, alongside the significant financing component, non-cash consideration and consideration payable to a customer. The complete guide to IFRS 15 sets out where it sits in the model as a whole.

Forms of Variable Consideration

The variability may be stated in the contract or implied by the entity's conduct.

SourceExamples
Price adjustments after saleVolume rebates, prompt payment discounts, price protection clauses, credits
Performance-linked amountsCompletion bonuses, late delivery penalties, incentive fees, service level credits
Contingent entitlementSuccess fees, fees based on asset values or market indices, rights of return
Implied variabilityA customary practice of granting price concessions, or an intention at inception to accept less than the stated price

A fixed price can still be variable consideration. Where an entity has a history of accepting less than the invoiced amount from a class of customer, the customer has a valid expectation of a concession, and the transaction price reflects it from the outset.

Variable payments in leases

IFRS 16 takes a different approach. Lease payments that vary with an index or rate are included in the lease liability, but payments linked to sales or usage are excluded and recognised as they occur. See variable lease payments under IFRS 16.

Expected Value vs Most Likely Amount

The entity uses whichever method better predicts the amount to which it will be entitled. This is not a free policy choice; it follows from the nature of the uncertainty.

Expected valueMost likely amount
CalculationSum of probability-weighted possible amountsThe single most likely amount in the range
Suited toA range of possible outcomes, or a large portfolio of similar contractsTwo possible outcomes, such as a bonus earned in full or not at all
ExampleExpected returns on a portfolio of retail salesA single rebate triggered by a purchase threshold

The expected value may be an amount that cannot occur. Where a bonus of 1,000,000 is 60 per cent likely, the expected value is 600,000, but the actual outcome will be either nil or 1,000,000. That is why the most likely amount suits binary outcomes.

The method chosen is applied consistently throughout the contract. A contract with more than one uncertainty can use different methods for each: the expected value for a range of penalties, and the most likely amount for a single completion bonus.

The Constraint

Variable consideration is included in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognised will not occur when the uncertainty is resolved.

Both the likelihood and the magnitude of a reversal are considered. The magnitude is measured against cumulative revenue for the contract, including the fixed consideration, not against the variable amount alone. Factors that increase the risk of reversal include:

  • the amount is highly susceptible to factors outside the entity's influence, such as market movements, weather or the actions of third parties;
  • the uncertainty is not expected to be resolved for a long time;
  • the entity's experience with similar contracts is limited or of little predictive value;
  • the entity has a practice of offering a broad range of price concessions; and
  • the contract has a large number and broad range of possible outcomes.

The constraint does not operate on an all-or-nothing basis. Where part of the variable amount is highly probable not to reverse, that part is included.

Performance fees

An investment manager earns a quarterly management fee of 0.3 per cent of assets at quarter end, plus 15 per cent of any outperformance of an index over three years. The management fee is variable, but the uncertainty is resolved at each quarter end, so it is recognised each quarter. The performance fee depends on market movements over a long period and is constrained, usually to nil, until the outcome is largely settled.

Example: Retrospective Volume Rebate

A manufacturer sells industrial pumps to a distributor at 25,000 each. If the distributor buys 400 or more pumps in the calendar year, it receives a rebate of 2,000 on every pump bought in that year. At 1 January, based on years of trading with the distributor, the manufacturer assesses a 75 per cent probability that the threshold will be reached.

There are two possible outcomes, so the manufacturer uses the most likely amount: the rebate will be paid. The transaction price is 23,000 per pump. On each sale, the 2,000 expected to be repaid is recognised as a refund liability rather than revenue.

QuarterUnitsInvoicedRefund liabilityRevenue
Q11203,000,000240,0002,760,000
Q2802,000,000160,0001,840,000
Q3701,750,000140,0001,610,000
Q4902,250,000(540,000)2,790,000
Total3609,000,00009,000,000

The Q1 entry is:

Q1 salesDebitCredit
Receivable (SFP)3,000,000
Revenue (P/L)2,760,000
Refund liability (SFP)240,000

The distributor buys 360 pumps in total, so no rebate is paid. At year end the uncertainty is resolved, and the refund liability of 540,000 accumulated over the first three quarters is released to revenue:

31 DecemberDebitCredit
Refund liability (SFP)540,000
Revenue (P/L)540,000

The constraint works in one direction

Suppose that at 30 September the manufacturer had judged the threshold only 30 per cent likely. The most likely amount would now be no rebate, but releasing the 540,000 liability would increase revenue that could still reverse. A 70 per cent likelihood is generally not enough to meet the highly probable threshold, so the liability would be retained until the outcome was clearer.

Where the rebate applies only to purchases above the threshold, or to future purchases, the analysis changes. A discount on future purchases is assessed as a possible material right, a separate performance obligation, rather than as variable consideration on current sales.

Example: Late Completion Penalty

A contractor agrees to fit out an office building for 12,000,000, with completion due by 30 June 2027. Revenue is recognised over time. The contract deducts 400,000 for each month of late completion, up to a maximum of 2,000,000. Based on similar projects, the contractor assigns these probabilities:

PenaltyProbabilityWeighted amount
045%0
400,00025%100,000
800,00015%120,000
1,200,00010%120,000
1,600,0003%48,000
2,000,0002%40,000
Expected penalty428,000

There is a range of outcomes, so the expected value of 428,000 is the starting estimate, giving a transaction price of 11,572,000. The constraint is then applied. There is a 30 per cent chance that the penalty exceeds 428,000, and a penalty of 1,200,000 would reverse 772,000 of revenue. The contractor concludes that it is highly probable only that the penalty will not exceed 1,200,000, so the transaction price is constrained to 10,800,000.

At 31 December 2026 the project is 40 per cent complete, and revenue of 4,320,000 is recognised (40% × 10,800,000).

The project is completed on 31 August 2027, two months late. The penalty is 800,000 and the final transaction price is 11,200,000. Revenue for 2027 is 6,880,000 (11,200,000 − 4,320,000), which includes a catch-up of 160,000 (40% × 400,000) on the work performed in 2026.

The penalty reduces revenue. It is not recognised as an expense or as a provision under IAS 37, because it is a term of the price the customer pays for the fit-out.

Price Concessions vs Credit Losses

Both reduce the cash an entity collects, but they are accounted for differently.

Price concessionCredit loss
CauseEntity chooses or expects to accept less than the stated priceCustomer is unable to pay what the entity expected to collect
Known whenAt contract inception, or from customary practiceAfter inception, from a change in the customer's credit standing
AccountingReduces the transaction price and revenueImpairment loss under IFRS 9, presented separately from revenue

An entity sells goods for 500,000 to a customer in a market where it customarily settles for about 80 per cent of the invoice. Revenue is 400,000. If the customer later pays only 350,000 because its own finances deteriorate, the further 50,000 is an impairment loss on the receivable, not a reduction in revenue.

The distinction also affects the first step of the model. Collectability is assessed against the 400,000 the entity expects to be entitled to, not the 500,000 invoiced.

Reassessment and Allocation

The estimate, including the constraint, is updated at the end of each reporting period. Changes are allocated to performance obligations on the same basis as at contract inception, and stand-alone selling prices are not re-estimated. The portion allocated to obligations already satisfied is recognised immediately, as in both examples above.

Variable consideration is normally allocated across all performance obligations in proportion to stand-alone selling prices. It is allocated entirely to one obligation, or to one distinct good or service within a series, only if both:

  • the variable payment relates specifically to the entity's efforts to satisfy that obligation, or to a specific outcome of it; and
  • the resulting allocation is consistent with the allocation objective across the contract as a whole.

A completion penalty on an installation service, for example, is allocated to the installation and not to software supplied under the same contract.

Sales-Based and Usage-Based Royalties

Royalties on licences of intellectual property that depend on the customer's sales or usage are an exception. Revenue is recognised at the later of:

  • when the customer's subsequent sale or usage occurs; and
  • when the performance obligation to which the royalty relates has been satisfied.

No estimate of future royalties is included in the transaction price, and the constraint is not applied. The exception applies only to licences of intellectual property, or where the licence is the predominant item to which the royalty relates. Sales-based fees for goods or other services follow the general requirements.

IFRS 15 vs ASC 606

The requirements for variable consideration are substantially converged.

AreaIFRS 15ASC 606
Estimation methodsExpected value or most likely amountSame
Constraint thresholdHighly probableProbable, meaning likely to occur, intended as the same threshold
Royalty exceptionSales-based and usage-based royalties on licences of intellectual propertySame
Price concessions vs credit lossesPrice concession reduces revenue; credit loss under IFRS 9Same distinction; credit loss under ASC 326

The analysis and the examples in this article therefore apply equally to entities reporting under US GAAP.

Presentation and Disclosure

Amounts the entity expects to repay, such as rebates and expected returns, are presented as a refund liability, not as a contract liability or a reduction of the receivable. Where a right of return applies, an asset is also recognised for the goods expected to be recovered. The contract assets and contract liabilities guide explains how these balances differ.

IFRS 15 requires disclosure of:

  • the methods, inputs and assumptions used to estimate variable consideration and to assess the constraint;
  • revenue recognised in the period from performance obligations satisfied in previous periods, such as changes in the transaction price;
  • obligations for returns, refunds and similar items; and
  • where constrained amounts are excluded from the transaction price allocated to remaining performance obligations, a qualitative explanation of that exclusion.

Estimating variable consideration and applying the constraint are typically significant judgements for entities with material rebate, bonus or penalty arrangements, and are disclosed as such.

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Conclusion

Variable consideration brings expected rebates, bonuses, penalties and concessions into revenue when the related goods or services transfer, rather than when the uncertainty resolves. The estimate uses the expected value for a range of outcomes and the most likely amount for binary ones. The constraint then limits revenue to the amount that is highly probable not to reverse significantly, assessed against cumulative revenue for the contract.

The estimate is updated at every reporting date, and the change is recognised as a cumulative catch-up on obligations already satisfied. Where the price may be reduced, the accounting follows the cause: a concession reduces revenue, while a customer's inability to pay is a credit loss.

The related elements of the transaction price are covered in our guides to the significant financing component and principal versus agent assessments.

For clarification, guidance, or feedback on our article, please reach out to us at insight@leash.co.za.

Written by

Leash

Leash builds lease accounting software for IFRS 16 and ASC 842. These guides come out of the same standards research that goes into the product — the calculations described here are the ones the platform automates.

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Frequently Asked Questions

Common questions about this topic

Variable consideration is any part of the consideration in a contract with a customer that can change because of discounts, rebates, refunds, credits, price concessions, incentives, performance bonuses, penalties or similar items, or because entitlement depends on a future event. It is estimated at contract inception, included in the transaction price subject to the constraint, and updated at each reporting date.

The expected value method, a probability-weighted sum of possible amounts, suits contracts with a range of possible outcomes or a large number of similar contracts. The most likely amount suits contracts with only two possible outcomes, such as a bonus that is either earned in full or not at all. The entity uses whichever method better predicts the amount to which it will be entitled, and applies it consistently through the contract.

IFRS 15 includes variable consideration in the transaction price only to the extent that it is highly probable that a significant reversal in the amount of cumulative revenue recognised will not occur when the uncertainty is resolved. IFRS 15 sets no percentage. The assessment considers both the likelihood and the magnitude of a possible reversal, measured against cumulative revenue for the contract.

Yes. The constraint limits the estimate to the amount that is highly probable not to reverse, which can be a minimum amount rather than nil. Where an entity is confident a penalty will not exceed a certain level, the transaction price is reduced by that level, even if the expected value of the penalty is lower.

Yes. A rebate that depends on the customer's total purchases makes the price of every unit variable. Where the rebate applies retrospectively to all units once a threshold is reached, the expected rebate is deducted from revenue on each sale and recognised as a refund liability. Where the rebate applies only to future purchases, the entity assesses whether it gives the customer a material right.

Penalties under the terms of the contract, such as amounts deducted for late completion, are variable consideration and reduce the transaction price. They are not recognised as an expense. The expected penalty is estimated, constrained and allocated to the performance obligation to which it relates.

A price concession is an amount the entity expects to accept below the stated price, known or intended at contract inception or arising from customary business practice. It reduces the transaction price and therefore revenue. A credit loss arises from the customer's inability to pay amounts the entity expected to collect, and is an impairment loss under IFRS 9 presented separately from revenue.

The transaction price is updated at each reporting date. The change is allocated to performance obligations on the same basis as at contract inception. The portion allocated to obligations already satisfied is recognised as revenue, or a reduction of revenue, in the period of the change, so a cumulative catch-up adjustment arises.

No. Sales-based and usage-based royalties on licences of intellectual property are recognised at the later of when the subsequent sale or usage occurs and when the related performance obligation is satisfied. This exception replaces the general estimation and constraint requirements, so no estimate of future royalties is recognised in advance.

The requirements are substantially the same. ASC 606 uses 'probable' rather than 'highly probable', but because 'probable' in US GAAP means 'likely to occur', the boards intended the threshold to be the same. Both standards use the expected value and most likely amount methods and include the same royalty exception.