Variable consideration: test the revenue reversal constraint
Variable revenue should survive a reversal test before entering a growth story. Separate the estimate of a contractual bonus from the amount included in revenue, then record the evidence that could unlock or reverse it. A probability-weighted forecast is an input to this review, not automatic permission to recognize the forecast.
Start with the entitlement and uncertainty
IFRS 15 addresses estimating variable consideration and constraining recognition where reversal risk remains. This article concerns ordinary commercial IFRS customer contracts. The publicly available December 2022 AASB 15 compilation, paragraphs 50–59, provides historical IFRS-aligned detail; its stated Australian applicability period is not a claim about every issuer’s 2026 requirements.
Identify whether variability comes from a performance bonus, rebate, penalty or price concession. Copy who controls the outcome, how it is measured, when uncertainty resolves and whether the customer can contest the result. Keep an enforceable amount separate from a sales team’s expected negotiation outcome.
A hypothetical bonus with three outcomes
Assume a completed implementation has fixed consideration of 500 thousand and a bonus of zero, 60 or 120. Hypothetical probabilities are 20%, 50% and 30%. The probability-weighted bonus is 66: zero times 20% plus 60 times 50% plus 120 times 30%. Suppose this method best predicts the entitlement for the assumed portfolio.
Now assume management’s supported constraint assessment permits only 40 of bonus consideration at this reporting date. The illustrative transaction price is 540, not 566. The excluded 26 is not an allowance against receivables; it represents estimated consideration not yet included. The assumed 40 is a teaching input, not a prescribed percentage or a calculation produced by the probabilities alone.
| Worksheet field | Assumed amount | Separate question |
|---|---|---|
| Fixed consideration | 500 | Is performance complete? |
| Estimated bonus | 66 | Is the estimation method suitable? |
| Included bonus | 40 | What supports the reversal assessment? |
| Not yet included | 26 | Which uncertainty must resolve? |
A later certified milestone might support inclusion of another 20 without any new delivery. That increase should be described as an estimate update on existing work rather than fresh customer volume. Conversely, adverse evidence could reduce the included amount before cash collection occurs.
Keep two registers, then connect them
The estimation register contains outcomes, probabilities or the most likely outcome, comparable experience and the prediction method. The constraint register contains external dependencies, dispute history, resolution dates, the included amount and the reasons for that judgment. Do not silently use the expected-value method for every binary bonus; the relevant estimation method depends on the arrangement.
Connect each update to reported growth. Assume prior-period revenue was 450 and current revenue is 540. Headline growth is 20%. If 20 of current revenue came from releasing an earlier constraint, current revenue excluding that specific update would be 520, giving 15.56% growth. This is an analytical bridge under stated assumptions, not a replacement accounting measure. Do not remove unfavorable revisions while retaining favorable releases.
What would change the conclusion?
Review milestone certifications, customer acceptance disputes, rebate thresholds and subsequent settlements. A favorable cash receipt supports collection but may cover multiple obligations or settlement terms. Reconcile its scope before calling it confirmation of the original bonus estimate. Repeated revisions after nominally similar milestones can indicate that historical predictive evidence deserves less weight.
Public notes may aggregate the relevant contracts. When the included variable amount is undisclosed, report that the release contribution cannot be isolated. An invented probability distribution would make the memo look precise while weakening it. The useful conclusion states the verified recognition mechanism, the sensitivity to unresolved outcomes and the next observable document that could resolve the question.
Finally, compare bonus releases with unfavorable reversals across the same contract population, rather than selecting only the favorable updates.
FAQ
Is expected bonus revenue simply probability times maximum bonus?
Only in a suitably specified example. Estimation methods and the constraint are separate judgments; neither follows automatically from that shortcut.
Does an excluded bonus mean the customer will never pay it?
No. Exclusion concerns the current transaction-price assessment. Later evidence can change both entitlement estimates and the amount included.