CFA Level I Exam · Capital Investments and Capital Allocation

Capital Budgeting Process and Project Categories

Updated 7 October 2026 · Fact-checked

Capital budgeting is the process a company uses to decide which long-term investments to undertake. The steps are: generate ideas, analyze proposals, plan the capital budget, and monitor results through a post-audit. Project categories include replacement, expansion, new product or service, and regulatory or mandatory projects. Allocate capital to projects that add the most value.

Understand Capital Budgeting Process and Project Categories

Capital budgeting is how a company decides which long-term projects to fund. These projects, such as a new factory, a fleet of aircraft or a software platform, tie up cash for years. The cash flows come later and are uncertain. Mistakes are costly and hard to reverse.

The process has four steps. First, generate ideas. Ideas come from employees, managers, customers, competitors and regulators. Second, analyze proposals. You forecast incremental after-tax cash flows and apply a decision rule such as NPV. Third, create the capital budget. You rank projects, consider timing, and fit them into the funds, staff and strategy available. Fourth, monitor and conduct a post-audit. You compare actual results with forecasts, look into the differences and use the lessons to improve future forecasts and catch biased analysts.

Projects fall into common categories. Replacement projects to maintain the business swap worn-out assets for similar ones. They are usually simple and low risk. Replacement projects for cost reduction swap working assets for more efficient ones, so they need more analysis. Expansion projects increase capacity in existing lines and need demand forecasts. New product or service projects carry the most uncertainty and need the most detailed analysis. Regulatory, safety and environmental projects are often mandatory. They may not earn a direct return, but the firm needs them to keep operating. Other projects, such as a pet project of an executive or a hard-to-measure research effort, may not be analyzed with standard tools.

The core principles of capital budgeting are these. Decisions rest on incremental cash flows, not accounting profit. Cash flows are after-tax. Timing matters, so you discount at a rate that reflects the project's risk. Financing costs are captured in the discount rate, not in the cash flows, to avoid double counting. Sunk costs are ignored, and externalities such as cannibalization of existing sales are included.

Capital allocation is the discipline of putting scarce capital where it earns the most. Without a limit, a firm accepts every positive-NPV project. If funds are limited, which is called capital rationing, it picks the combination that maximizes total NPV. Good allocation also depends on honest forecasting and on a post-audit that holds managers accountable.

Key formulas to remember

Four steps of capital budgeting: Generate ideas → Analyze proposals → Create the capital budget → Monitor and post-audit; Know the order. Questions often ask which step an activity belongs to.
NPV decision rule: NPV = Σ CFt ÷ (1 + r)^t, for t = 0 to n; accept if NPV > 0; CF0 is normally negative. r is the project's required rate of return. NPV is the main criterion in the principles.
Incremental cash flow principle: Incremental CF = CF with the project − CF without the project; Excludes sunk costs. Includes opportunity costs and externalities.
Project categories: Replacement (maintenance or cost reduction), Expansion, New product or service, Regulatory/safety/environmental, Other; Mandatory projects are usually the regulatory, safety and environmental group.

How to solve Capital Budgeting Process and Project Categories questions

Use this method for any question on the process, the categories or the principles.

1Read the stem and decide what is being tested: a step in the process, a project category, or a principle.
2For a process question, place the activity in the order: idea generation, analysis, budget creation, monitoring and post-audit.
3For a category question, ask what the project does. Does it keep current operations running, cut costs, add capacity, launch something new, or satisfy a rule?
4For a principle question, check whether the item is an incremental, after-tax cash flow. Remove sunk costs and financing costs; add opportunity costs and externalities.
5Check the allocation logic. Without a capital limit, accept all positive-NPV projects. With a limit, maximize total NPV.
6Eliminate the two options that break a principle, then choose the remaining one.

Quickest way: Sort by action word

When to use it: Use this when a stem describes a project or activity and you have about 90 seconds.

Find the action word: replace, expand, launch, comply, forecast, compare, review.
Match it to a category or step. Replace maps to replacement, comply maps to mandatory, compare actual with forecast maps to post-audit.
For cash flow items, ask: would this cash flow change because of the project? If not, it is out.
Pick the option that matches and drop the two that conflict.

Common mistakes in Capital Budgeting Process and Project Categories

Including sunk costs, such as a feasibility study already paid for, in project cash flows.
The cost feels real and related to the project.
Fix: Ask whether the cash flow changes if you accept or reject. Money already spent does not change, so exclude it.
Putting interest or financing costs into the project cash flows.
Students think financing is part of the cost of the project.
Fix: Financing costs are reflected in the discount rate. Including them in cash flows double counts them.
Ignoring externalities such as cannibalization of existing product sales.
Students focus only on the new project's own revenue.
Fix: Use incremental cash flows for the whole firm. Subtract lost sales on existing products.
Mixing up the four steps or treating the post-audit as optional.
The post-audit comes last and seems less important than the analysis.
Fix: Remember the post-audit compares actual and forecast results, improves future forecasts and discourages biased projections.
Calling every replacement project low risk.
Students generalize from the word replacement.
Fix: Replacement to maintain the business is simple. Replacement for cost reduction needs fuller analysis because savings must be forecast.
Assuming mandatory projects must pass the NPV test.
Students apply the NPV rule to everything.
Fix: Regulatory or safety projects may be required to operate. The usual analysis is to find the lowest-cost way to comply.

Worked examples

Example 1

A manufacturer is considering a project to install pollution-control equipment required by new environmental law. Without it, the plant must close. Which category is this, and how is the analysis likely to differ? A) Expansion; the analysis rests on demand forecasts. B) Regulatory or mandatory; the analysis focuses on the lowest-cost way to comply. C) New product; the analysis rests on market research.

Show the solution

The action is complying with a legal rule, so the category is regulatory, safety or environmental.
Such projects are often mandatory because the firm cannot operate without them.
The project may not generate its own revenue, so the usual NPV logic is less useful. The question becomes which compliant option costs least.
Option A describes expansion and option C describes a new product. Both are eliminated.

Answer: B

Example 2

A firm is evaluating a new product that will take sales from its existing product. It has already paid $50,000 for a market study. Which treatment is correct? A) Include the $50,000 and ignore lost sales on the existing product. B) Exclude the $50,000 and include the lost sales on the existing product. C) Exclude both the $50,000 and the lost sales.

Show the solution

The $50,000 is already spent and is a sunk cost. It does not change with the decision, so exclude it.
Taking sales from the existing product is cannibalization, an externality. It changes the firm's total cash flows, so include it.
Option A makes both errors. Option C ignores the externality. Option B is the only one that gets both right.

Answer: B

Exam tips

Memorize the four steps in order and the purpose of the post-audit. Process questions are usually direct.
Learn the five project categories and link each to a one-word action: replace, cut costs, expand, launch, comply.
On principle questions, scan options for sunk costs, financing costs and ignored externalities. The two wrong choices usually contain one of these errors.
All questions have three options and no penalty for wrong answers, so never leave one blank. Eliminate first, then guess if needed.
This topic is conceptual, so expect no heavy calculation. Save time here for the NPV and IRR questions.

Practice questions from Capital Investments and Capital Allocation

Capital Budgeting Process and Project Categories in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Capital Budgeting Process and Project Categories: frequently asked questions

What are the steps in the capital budgeting process?

There are four. You generate ideas, analyze proposals, create the capital budget, and monitor results with a post-audit. The post-audit compares actual outcomes with forecasts.

What are the main types of capital projects?

Common categories are replacement projects (to maintain the business or cut costs), expansion projects, new product or service projects, and regulatory, safety or environmental projects. Some projects fall outside these groups.

What is a mandatory project in capital budgeting?

It is a project the firm must undertake, usually to meet regulatory, safety or environmental requirements. It may not produce a direct return. Analysis often focuses on the cheapest way to comply.

What are the basic principles of capital budgeting?

Decisions use incremental, after-tax cash flows. Sunk costs are ignored, while opportunity costs and externalities are included. Financing costs are handled in the discount rate, and timing of cash flows matters.