Preparing budgets for planning and control

BA2 – Fundamentals of Management Accounting · CIMA (CGMA Professional Qualification) · 7 min read · Updated: 4 Nov 2026

Welcome to Preparing Budgets: Your Business Roadmap!

Hello there! Welcome to one of the most practical chapters in your BA2 journey. If you’ve ever planned a holiday or a big party by deciding how much you can spend and what you need to buy, you’ve already done a basic version of budgeting. In this chapter, we take those skills and apply them to a business setting.

Why is this important? Without a budget, a business is like a ship without a compass. We need budgets to plan (decide where we want to go) and to control (check if we are staying on track). Don't worry if numbers seem intimidating at first—we will break every calculation down into simple, logical steps!

1. The Starting Point: The Principal Budget Factor

Before we can start crunching numbers, we need to find the "bottleneck." In CIMA terms, this is called the Principal Budget Factor. This is the factor that limits the activities of the organization. For most businesses, this is Sales Demand (you can't make more than you can sell!), but it could also be a shortage of raw materials, machine hours, or even skilled labor.

Quick Tip: Always identify the principal budget factor first. Why? Because you must prepare that budget first, and every other budget will be based on it!

Key Takeaway:

The Principal Budget Factor is the "limiting factor" that dictates the scale of all other budgets. Usually, it's Sales.

2. The Hierarchy of Functional Budgets

Once we know our limits, we create Functional Budgets. These are individual budgets for different departments. They follow a specific logical order. Think of it like a domino effect: one leads to the next.

Step 1: The Sales Budget

This is usually the first budget. It’s simply:
$ \text{Sales Value} = \text{Sales Units} \times \text{Selling Price} $

Step 2: The Production Budget

Now that we know how many units we want to sell, we need to figure out how many we need to make. We have to account for any stock we already have and any "safety stock" (closing stock) we want to keep.

The Golden Formula:
$ \text{Units to produce} = \text{Sales units} + \text{Closing stock of finished goods} - \text{Opening stock of finished goods} $

Analogy: Imagine you want to eat 10 cookies today (Sales). You want to have 2 cookies left for tomorrow morning (Closing Stock). You already have 3 cookies in the jar (Opening Stock). How many do you need to bake?
$ 10 + 2 - 3 = 9 $ cookies. Simple, right?

Step 3: Materials Usage and Purchase Budgets

Now that we know how many units to produce, we need to know:
1. How much material we will use.
2. How much material we need to buy.

Materials Usage Budget:
$ \text{Usage} = \text{Production units} \times \text{Material per unit} $

Materials Purchase Budget:
$ \text{Purchases} = \text{Usage} + \text{Closing stock of materials} - \text{Opening stock of materials} $

Common Mistake to Avoid: Students often confuse Units of Finished Goods with Kilograms/Litres of Materials. Always check if the question is asking for how many items you are making or how much "stuff" you are buying to make them!

Step 4: The Labour Budget

This calculates how many hours are needed and how much they will cost.
$ \text{Total Hours} = \text{Production units} \times \text{Hours per unit} $
$ \text{Total Cost} = \text{Total Hours} \times \text{Labour rate per hour} $

Quick Review: The Budget Sequence

1. Sales (Units and Value)
2. Production (Units)
3. Materials (Usage then Purchases)
4. Labour and Overheads

3. The Master Budget

After all the individual functional budgets are done, we combine them into the Master Budget. This gives the "big picture" to senior management.

The Master Budget consists of:
1. The Budgeted Statement of Profit or Loss: To see if we expect to make an operating profit.
2. The Budgeted Statement of Financial Position: To see the expected assets, liabilities, and equity at the end of the period.
3. The Cash Budget: To track cash inflows, outflows, and projected balances.

Did you know?

A business can be profitable on paper but still run into severe financial distress if it runs out of cash. This is why the cash budget is often considered the most critical part of the planning process.

4. The Cash Budget: Tracking the Lifeblood

The Cash Budget tracks cash inflows (money received) and cash outflows (money paid out).

Important Distinction: Not all accounting costs are cash outflows. For example, Depreciation is an accounting expense, but no cash leaves the bank. Never include depreciation in a cash budget!

The Timing Factor: In BA2 exams, pay close attention to when cash is paid or received.
- Example: If you sell goods on credit in January but the customer pays 1 month later, the cash inflow belongs in February.

Cash Budget Structure:

$ \text{Opening Cash Balance} $
$ + \text{Cash Receipts (Inflows)} $
$ - \text{Cash Payments (Outflows)} $
$ = \text{Closing Cash Balance} $

Managing Cash Surpluses and Shortfalls:

Preparing a cash budget allows managers to take action in advance:
- Cash Shortfalls (Deficits): If the budget predicts a negative closing balance, managers can arrange a bank overdraft in advance, negotiate extended credit terms with suppliers, delay capital expenditures, or intensify debt collection.
- Cash Surpluses: If idle cash accumulates, managers can invest in short-term interest-bearing deposits, pay off expensive loans early, or take advantage of supplier early-settlement discounts.

5. Preparing Budgets for Control: Fixed and Flexible Budgeting

Planning is only half the battle. Control is the process of comparing actual performance against budgeted targets and taking corrective action where needed.

Fixed Budgets vs. Flexible Budgets

A Fixed Budget is prepared for a single planned level of activity before the period begins. It is ideal for initial planning, but it is not effective for control when actual output differs from planned output.

Why? If you planned to produce $ 1,000 $ units but actually produced $ 1,200 $ units, your actual costs will naturally be higher. Comparing actual costs of $ 1,200 $ units directly to a fixed budget of $ 1,000 $ units is like comparing apples to oranges!

A Flexible Budget solves this problem. It is designed to change with the activity level by recognising cost behaviour:
1. Variable Costs: Adjusted in direct proportion to the actual activity level achieved.
2. Fixed Costs: Kept constant (they do not change with output in the short term).
3. Semi-Variable Costs: Split into fixed and variable components and flexed accordingly.

How to Prepare a Flexible Budget and Calculate Variances

Suppose a company plans to make $ 1,000 $ units with a direct material cost of $ \$5 $ per unit and fixed overheads of $ \$2,000 $. The company actually produces $ 1,200 $ units, spending $ \$6,300 $ on direct materials and $ \$2,100 $ on fixed overheads.

Step 1: Calculate the Flexed Budget for actual output ($ 1,200 $ units):
- Flexed Direct Materials: $ 1,200 \text{ units} \times \$5 = \$6,000 $
- Flexed Fixed Overheads: $ \$2,000 $ (remains unchanged)

Step 2: Calculate the Budget Variances:
$ \text{Budget Variance} = \text{Actual Cost} - \text{Flexed Budget Cost} $
- Direct Materials Variance: $ \$6,300 \text{ actual} - \$6,000 \text{ flexed} = \$300 \text{ Adverse (A)} $ (spent more than allowed for $ 1,200 $ units).
- Fixed Overhead Variance: $ \$2,100 \text{ actual} - \$2,000 \text{ flexed} = \$100 \text{ Adverse (A)} $.

Key Takeaway: By flexing the budget to the actual activity level, managers isolate genuine operational variances from differences caused simply by changes in production volume.

Final Encouragement and Quick Tips

Budgeting follows a predictable, logical sequence. Keep these rules in mind for your BA2 assessment:

The Golden Inventory Logic: $ \text{Required Outflow} + \text{Closing Stock} - \text{Opening Stock} = \text{Production or Purchases} $.
Timing in Cash Budgets: Look carefully for credit terms (e.g. "paid 1 month in arrears") and never deduct non-cash items like depreciation.
For Control, Always Flex: Before calculating cost variances, flex the variable costs to the actual volume produced, but leave fixed costs at their original budgeted figure.
Units vs. Value: Always check if the question asks for quantity (units/kg) or currency (\$ / £).

You've got this! Budgeting is just organized common sense combined with systematic arithmetic. Keep practicing the functional build-up and the flexible budget tables until they become second nature.

References

CIMA Certificate in Business Accounting Syllabus (2017 Syllabus) — AICPA & CIMA
Cert BA Subject BA2 Fundamentals of Management Accounting Study and Exam Guide — AICPA & CIMA

Quick check

Can you answer these now?

Open each question to check the key ideas from this chapter.

What is the principal budget factor, and why must it be identified first?

The principal budget factor is the limiting factor that restricts the organisation's level of activity (most commonly sales demand). It must be identified first because it sets the ceiling for all other functional budgets.

How is the production budget calculated using inventory requirements?

$ \text{Units to produce} = \text{Sales units} + \text{Closing stock of finished goods} - \text{Opening stock of finished goods} $

What is the difference between the materials usage budget and the materials purchase budget?

The materials usage budget calculates raw materials consumed in production ($ \text{Production units} \times \text{Material per unit} $), whereas the materials purchase budget calculates the quantity to buy after adjusting for raw material stock levels ($ \text{Usage} + \text{Closing stock} - \text{Opening stock} $).

How are total direct labour hours and labour costs budgeted?

$ \text{Total Hours} = \text{Production units} \times \text{Hours per unit} $, and $ \text{Total Cost} = \text{Total Hours} \times \text{Labour rate per hour} $.

What three primary financial statements comprise the master budget?

The master budget comprises the Budgeted Statement of Profit or Loss, the Budgeted Statement of Financial Position, and the Cash Budget.

Why is depreciation excluded from a cash budget, and how does timing affect cash receipts?

Depreciation is a non-cash accounting expense involving no actual outflow of funds; cash flows must also reflect the exact timing of receipt or payment rather than when sales or expenses are recognized.

What is the key difference between a fixed budget and a flexible budget?

A fixed budget remains set for a single planned output level, whereas a flexible budget adjusts variable costs to match the actual level of activity achieved while keeping fixed costs constant.

How is a budget variance calculated under a flexible budgeting system?

$ \text{Budget Variance} = \text{Actual Cost} - \text{Flexed Budget Cost} $ (or Flexed Revenue minus Actual Revenue for sales).

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