Methods of Capital Budgeting: Complete JAIIB AFM Guide (2026) with NPV, IRR
Methods of Capital Budgeting: The Complete JAIIB AFM Guide (2026)
If you are preparing for JAIIB. The methods of capital budgeting are simply unavoidable. This is one of the highest-yield topics in Accounting. Financial Management for Bankers (AFM). Examiners love it because it mixes theory with quick numericals.
The good news? Once you understand the logic, marks become almost guaranteed. This 2026 guide breaks down every method — Payback Period. ARR. NPV, IRR and Profitability Index — with formulas, solved examples and exam-ready shortcuts.
🔑 Key Takeaways
- Capital budgeting is the process of choosing long-term investment projects.
- Methods split into two families: non-discounted (ignore time value of money). Discounted (consider it).
- The five core methods are Payback Period. ARR, NPV, IRR and Profitability Index.
- NPV is the most reliable method. Accept a project when NPV is positive.
- For JAIIB AFM, expect 2–4 questions — a mix of one-liners and small numericals.
What Is Capital Budgeting?
Capital budgeting is the process of deciding whether to invest in long-term capital assets. These assets include new machinery, buildings, plant expansion or major software upgrades.
Such investments are big and rarely reversible. A wrong call can lock up funds for years. That is why banks. Companies use structured methods of capital budgeting to rank projects before committing money.
The core idea is simple. Funds are limited. So a firm must pick the projects that create the most value per rupee invested.
Why Capital Budgeting Matters for Bankers
As a banker, you will appraise loan proposals and project finance requests. Understanding these methods helps you judge whether a borrower's project can repay the loan.
For JAIIB AFM specifically. This topic links directly to Cost of Capital. Time Value of Money. Master all three together and a full module starts to make sense.
Two Families: Non-Discounted vs Discounted Methods
Every method of capital budgeting falls into one of two buckets. The split depends on one factor: does it respect the time value of money or not?
The time value of money means a rupee today is worth more than a rupee tomorrow. Inflation erodes future value. Discounted methods adjust for this; non-discounted methods ignore it.
| Basis | Non-Discounted Methods | Discounted Methods |
|---|---|---|
| Time value of money | Ignored | Considered |
| Methods included | Payback Period, ARR | NPV, IRR, Profitability Index |
| Accuracy | Lower | Higher |
| Ease of use | Very easy | Slightly complex |
Keep this table in mind. A classic JAIIB question asks you to identify. Method is discounted and which is not.
Non-Discounted Methods of Capital Budgeting
These are the simplest tools. They are fast to compute. Do not adjust cash flows for time. Two methods sit here: the Payback Period. The Accounting Rate of Return.
1. Payback Period Method
The payback period is the time needed to recover the initial investment. It simply counts how many years it takes to get your money back.
A shorter payback is more attractive. It signals quicker recovery and lower risk. However. This method ignores profits earned after recovery. The time value of money.
Formula (even cash flows):
Payback Period = Initial Investment ÷ Annual Cash Inflow
Solved Example 1: A company buys a machine for Rs 1,00,000. Annual cash inflow is Rs 20,000. Find the payback period.
Payback Period = 1,00,000 ÷ 20,000 = 5 years
Solved Example 2 (uneven cash flows): A machine costs Rs 70,000. The cumulative cash flows are shown below.
| Year | Cash Inflow (Rs) | Cumulative Cash Flow (Rs) |
|---|---|---|
| 1 | 10,000 | 10,000 |
| 2 | 30,000 | 40,000 |
| 3 | 20,000 | 60,000 |
| 4 | 30,000 | 90,000 |
| 5 | 40,000 | 1,30,000 |
By the end of Year 3, Rs 60,000 is recovered. We still need Rs 10,000 of the Rs 70,000. Year 4 brings in Rs 30,000.
Fraction of Year 4 = 10,000 ÷ 30,000 = 0.33Payback Period = 3 + 0.33 = 3.33 years
Best for: A quick liquidity check. Weakness: It ignores profitability after payback and the time value of money.
2. Accounting Rate of Return (ARR)
The Accounting Rate of Return (ARR) measures profitability as a percentage. It compares average profit to the investment made.
It is handy when comparing several projects. It gives each one an expected return rate. But ARR also ignores the timing of cash flows.
Formula:
ARR = (Average Profit After Tax ÷ Net Investment) × 100
Here, Net Investment usually equals Initial Investment minus Scrap Value. (Some syllabi use average investment. Confirm the exact formula on the latest official IIBF notification. Your study material.)
Solved Example: A machine costs Rs 10,00,000 with a 4-year life. Rs 2,00,000 scrap value. Profits after tax are below.
| Year | Profit After Tax (Rs) |
|---|---|
| 1 | 30,000 |
| 2 | 20,000 |
| 3 | 10,000 |
| 4 | 20,000 |
Average Profit = (30,000 + 20,000 + 10,000 + 20,000) ÷ 4 = 20,000Net Investment = 10,00,000 − 2,00,000 = 8,00,000ARR = (20,000 ÷ 8,00,000) × 100 = 2.5%
Key limitation: ARR cannot distinguish between projects that earn early versus late. Timing is invisible to it.
Discounted Cash Flow (DCF) Methods
Discounted methods are more reliable. They convert future cash flows into today's value using a discount rate. This respects the time value of money.
The logic is intuitive. Money available today can be reinvested. So future inflows must be "discounted" to compare fairly. Three methods follow: NPV, IRR and Profitability Index.
3. Net Present Value (NPV) Method
The Net Present Value (NPV) method is the most widely used. Most reliable tool. It discounts all future cash inflows and subtracts the initial investment.
Formula:
NPV = Present Value of Cash Inflows − Initial Investment (Cash Outflow)
The decision rule is clean and exam-friendly:
- NPV is positive → Accept the project.
- NPV is negative → Reject the project.
- NPV is zero → Indifferent (returns just meet the required rate).
Solved Example: A machine costs Rs 20,000. It generates inflows of Rs 4,000, Rs 5,000 and Rs 5,000 over three years. Discount rate is 12%.
| Year | Cash Inflow (Rs) | Discount Factor @12% | Present Value (Rs) |
|---|---|---|---|
| 1 | 4,000 | 0.89 | 3,560 |
| 2 | 5,000 | 0.80 | 4,000 |
| 3 | 5,000 | 0.71 | 3,550 |
Total Present Value of Inflows = 3,560 + 4,000 + 3,550 = 11,110NPV = 11,110 − 20,000 = − 8,890 (Negative)
Since NPV is negative here, the project would be rejected. NPV's biggest strength is that it shows value creation in absolute rupee terms.
4. Internal Rate of Return (IRR)
The Internal Rate of Return (IRR) is the discount rate at. NPV becomes zero. At this rate, discounted inflows equal discounted outflows.
IRR tells you the project's own rate of return. Accept a project when its IRR is higher than the firm's cost of capital. It is excellent for comparing percentage returns across projects.
Interpolation Formula:
IRR = Ra + [ NPVa × (Rb − Ra) ] ÷ (NPVa − NPVb)
Where Ra is the lower rate. Rb is the higher rate. NPVa is NPV at the lower rate. NPVb is NPV at the higher rate.
Solved Example: A project's NPV is Rs 1,00,000 at 10% and Rs −25,000 at 12%. Find the IRR.
IRR = 10 + [1,00,000 × (12 − 10)] ÷ (1,00,000 − (−25,000))IRR = 10 + (1,00,000 × 2) ÷ 1,25,000IRR = 10 + 1.6 = 11.6%
Watch out: IRR can mislead with unconventional cash flows or mutually exclusive projects. In such cases, trust NPV over IRR.
5. Profitability Index (PI)
The Profitability Index (PI). Also called the benefit-cost ratio, measures value created per rupee invested.
Formula:
PI = Present Value of Future Cash Inflows ÷ Initial Investment
The decision rule is straightforward:
- PI greater than 1 → Accept the project.
- PI less than 1 → Reject the project.
- PI equal to 1 → Break-even.
PI shines under capital rationing. When funds are tight. Rank projects by PI and pick those with the highest values first.
Quick Comparison of All Five Methods
Use this snapshot for last-minute revision before the JAIIB AFM exam.
| Method | Type | Accept When | Output Unit |
|---|---|---|---|
| Payback Period | Non-discounted | Shorter than target | Years |
| ARR | Non-discounted | Higher than target | Percentage |
| NPV | Discounted | NPV is positive | Rupees |
| IRR | Discounted | IRR > cost of capital | Percentage |
| Profitability Index | Discounted | PI greater than 1 | Ratio |
How to Study Capital Budgeting for JAIIB AFM
Theory alone will not win marks here. You need a practical, formula-first study plan. Follow these steps.
- Memorise the family tree first. Know which method is discounted and which is not. This alone fetches easy one-liners.
- Learn the five formulas cold. Write each one daily until recall is instant.
- Practise discount-factor tables. Most numericals supply factors, but practise computing 1÷(1+r)ⁿ too.
- Solve mixed numericals. Attempt one Payback. One ARR, one NPV and one IRR sum every day.
- Time yourself. Take regular mock tests so you can solve a numerical in under 90 seconds.
Pair this topic with Cost of Capital and Time Value of Money for maximum impact. You can find more structured free guides to build that foundation.
Common Mistakes to Avoid
Small slips cost big marks in AFM numericals. Watch for these traps that students repeat every cycle.
- Confusing discounted and non-discounted methods. Payback and ARR ignore time value; the rest do not.
- Forgetting scrap value when computing Net Investment for ARR.
- Mixing up the NPV sign rule. Accept on positive NPV, never negative.
- Treating uneven cash flows as even. Build a cumulative cash flow column for the payback method.
- Rounding discount factors too early. Round only at the final step to keep accuracy.
- Blindly preferring IRR. For conflicting results, NPV is the tie-breaker.
Frequently Asked Questions (FAQ)
What are the five methods of capital budgeting?
The five core methods are the Payback Period. Accounting Rate of Return (ARR). Net Present Value (NPV). Internal Rate of Return (IRR) and Profitability Index (PI). The first two are non-discounted; the last three are discounted methods.
Which is the best method of capital budgeting?
NPV is widely regarded as the best and most reliable method. It accounts for the time value of money. Shows value creation in absolute rupee terms. A positive NPV means the project adds value.
What is the difference between NPV and IRR?
NPV gives the rupee value a project adds at a given discount rate. IRR gives the percentage return at which NPV becomes zero. When the two conflict on mutually exclusive projects, prefer NPV.
Is the payback period a discounted method?
No. The traditional payback period is a non-discounted method. It ignores the time value of money. A separate variant called the discounted payback period does account for it.
How many questions come from capital budgeting in JAIIB AFM?
Capital budgeting is a high-weightage topic. So expect a healthy mix of one-liners and small numericals. For the exact pattern and marks. Always confirm on the latest official IIBF notification.
Final Thoughts: Turn This Topic Into Guaranteed Marks
The methods of capital budgeting look intimidating at first. But each method follows one clean rule and one short formula. Learn the logic once and the numericals become quick wins.
Focus on NPV and the discounted family. They carry the highest reliability and exam value. Practise a few sums daily. Avoid the common traps. And this topic will lift your AFM score with confidence.
You have got this. Stay consistent. Solve numericals every day. And walk into the JAIIB exam ready to score. 🚀
Related Guides
📚 Free Learning Sessions resources — connect & crack your exam
- 📝 Free mock tests — chapter-wise, exam-pattern, with instant solutions
- 🎮 Matching games — gamified revision of key terms & concepts
- 📄 Study notes & PDFs — downloadable chapter material
- 🎥 Video classes on YouTube — subscribe to @learningsessions
💬 Want the full course? WhatsApp your course name to 8360944207 and our team will set you up.
📱 Study on the go — get our iOS & Android app at iibf.store/app.
For more on methods of capital budgeting. See the official IIBF circulars. Our chapter-wise free notes on iibf.store.
For more on “methods of capital budgeting”, explore our free mock tests and chapter notes on iibf.store.
Bookmark this page — we keep our “methods of capital budgeting” guidance current as IIBF revises its rules.
Take a free mock test, download chapter PDFs, or watch a video class — all included on iibf.store.
Keep reading
