CIMA OCS: What Examiners Really Expect From Your Answers

Technical knowledge is important, but the May and August 2026 examiner reports show that strong performance depends on how well you apply it to the question and the information given.

First, understand the 45-minute structure

The exam has four 45-minute tasks, each worth 25 marks, with 2 to 4 sub-tasks. Each sub-task has a percentage weighting that shows both its marks and roughly how long to spend on it. For example, a 48% sub-task is worth 12 marks and about 21.6 minutes.

From our own marking of practice scripts, one well-explained point or argument is worth roughly 2 to 3 marks in the OCS. So for a 12-mark sub-task, aim for about 4 points, and finish the whole task within its 45 minutes.

Use the weighting to manage your time: higher-weighted sub-tasks deserve more time and a more developed answer. Avoid spending too long on one part and rushing the rest. The aim is to give yourself the best chance to earn marks across the whole task.

What can actually come up?

The OCS blueprint covers six core activities, and each has a set weighting range: B, C and E are 17% to 25%; A and F are 12% to 18%; D is 7% to 13%. Each activity covers one or two topics, and a topic may appear in more than one sub-task. So don't just memorise formulas and definitions. Practise applying your technical knowledge to new business information.

If you look at past papers, these topics come up again and again, so at a minimum focus on them:

• KPIs
• Variances
• Time series analysis
• Multi-product breakeven charts
• IAS 16
• IFRS 16
• IAS 2
• Working capital management
• Costing techniques
• Budgeting techniques
• What-if analysis
• Reading payoff tables and attitudes to risk in decision making
• Reading expected values, standard deviation and the coefficient of variation
• EOQ
• Relevant costing
• And the newer topics: AI and environmental costing

One of the biggest mistakes: answering the topic instead of the requirement

You can know the topic well and still lose marks if you don't answer what the sub-task actually asks you to do. Pay attention to the action word: discuss, analyse, interpret, justify, explain or recommend. These words tell you what your answer needs to show.

The May and August 2026 examiner reports found that lower-scoring answers often stated or identified points when the task asked for discussion, analysis or justification. Higher-scoring answers followed the requirement and gave the depth it called for.

Spot the action words, then answer them

Don't just read the topic and start writing. Read the action word and answer accordingly.

• Discuss: give depth and apply it to the scenario.
• Justify: explain why your recommendation, treatment or choice makes sense.
• Analyse: explain what the information means, including the relevant causes, comparisons or impacts.
• Interpret: explain what the figures or information are telling you, rather than repeating them.

This mattered most in May and August 2026, when candidates were generally stronger at discussion and justification than at analysis and interpretation.

So, how are your answers actually marked?

Each sub-task is broken into traits and marked using levels, with marks awarded across Levels 1 to 3. The marking focuses on four areas:

1. Technical understanding. Show that you understand the topic. Knowing the theory is only the starting point, and rote-learned answers are not enough. Apply your knowledge to the question.
2. Communication. Your answer needs to be clear, well explained and easy to follow. You don't need complicated language; you need to make your thinking clear. Spelling or grammar should never make your answer hard to understand.
3. Use of the information given. Avoid generic textbook answers. Use the figures, facts, tables, emails and other information provided, and link your points to the scenario.
4. Application to the scenario. Show what the technical knowledge means for this business in this situation. Move from "I know the concept" to "I know what it means here."

What does a higher-scoring answer look like?

Strong answers combine technical understanding with application, follow the requirement and explain points clearly. Don't just repeat the numbers; interpret them. One of the clearest lessons from 2026 was around analysis and interpretation.

For example, saying "the sales price variance is adverse" simply repeats the result. A stronger answer explains what it means, such as products being sold below the standard price because of an unplanned discount, and then considers the impact on contribution. The same applies to what-if analysis. Don't just state that the selling price has fallen. Explain the consequence: a lower selling price means a lower contribution margin, which can mean lower total contribution if the extra volume doesn't make up for it.

Ask yourself: so what? Why did it happen? What is the impact? What does it tell the business? That is where analysis and interpretation begin.

So, what should you practise?

After every practice task, ask yourself:

• Have I answered the exact requirement?
• Have I followed the action word?
• Have I used the information given?
• Have I applied my knowledge to the scenario?
• Have I explained how and why where needed?
• If analysing or interpreting, have I gone beyond repeating the information?
• Have I addressed every part of the sub-task?
• Is my answer clear and detailed enough for the marker to see what I understand?

The message from May and August 2026 is simple: technical knowledge alone isn't enough. Apply it to the scenario, follow the requirement, explain your thinking and answer every part of the sub-task. Don't just revise the knowledge. Practise turning it into an answer the examiner can reward.

Watch: our analysis of past OCS examiner reports

Our lead tutor goes through the examiner reports in more detail in this video.

Best of luck with your exam prep!