Management Accounting

Chapter 6
Budgeting, Planning and Forecasting

Bachelors Program in Accounting and Finance
Management Accounting   •   Bachelor

Budgeting, Planning and Forecasting

Introduction

Budgeting is the process of translating an organization’s objectives and plans into quantified targets for a specified period. Planning determines what an organization intends to achieve and how resources will be used; budgeting expresses those intentions in financial and operational terms; forecasting estimates what is likely to happen, whether or not it conforms to the budget. These activities are central to management accounting because they connect strategy, operations, resource allocation, performance evaluation and financial control.

A budget is not merely a prediction or a cost-cutting device. It is also a coordination mechanism, a communication instrument and a basis for evaluating performance. However, budgets can create dysfunctional behaviour if targets are unrealistic, incentives are poorly designed or managers manipulate information. Effective budgeting therefore combines quantitative analysis with organizational judgement and ethical governance.

Learning Objectives

By the end of this chapter, students should be able to:

  1. Explain the purpose and relationships among planning, budgeting and forecasting.
  2. Prepare operating, financial, cash and master budgets.
  3. Distinguish participative, incremental, zero-based, rolling and activity-based budgeting.
  4. Prepare and interpret flexible budgets and variances.
  5. Apply scenario planning and forecasting techniques.
  6. Evaluate behavioural, ethical and organizational consequences of budgeting.

1. Planning, Budgeting and Forecasting

Planning establishes objectives and chooses actions. Strategic planning usually covers several years and addresses markets, products, technology and competitive position. Operational planning translates strategy into short-term activities.

Budgeting quantifies an approved plan. A budget may specify sales volumes, production quantities, staffing, purchases, cash receipts, expenditures, assets, liabilities and financing requirements.

Forecasting estimates future outcomes using available information. A forecast may be updated when demand, prices, exchange rates or operating conditions change. The budget remains an authorized plan unless formally revised; the forecast is an informed estimate of expected results.

A useful distinction is:

FeatureBudgetForecast
Main purposePlan and authorize actionEstimate likely outcomes
BasisAgreed targets and assumptionsCurrent information and evidence
RevisionUsually periodic and controlledUpdated as conditions change
Performance useBasis for comparison and accountabilityBasis for decisions and risk assessment

Budgets support five major functions: planning, coordination, resource allocation, control and motivation. They also provide information for lenders, investors and senior management, although a management budget may contain confidential operating details.

2. The Master-Budget Framework

The master budget is an integrated set of budgets for a budget period. For a manufacturing organization, the usual sequence is:

  1. Sales budget
  2. Production budget
  3. Direct-materials budget
  4. Direct-labour budget
  5. Manufacturing-overhead budget
  6. Selling and administrative-expense budget
  7. Cash budget
  8. Budgeted income statement
  9. Budgeted statement of financial position

The sales budget normally drives the operating budgets because expected sales influence production, purchases, staffing and cash receipts. In some organizations, capacity, materials or cash constraints may instead become the principal limiting factor.

2.1 Sales Budget

The sales budget estimates units and revenue by product, territory, customer group or period.

Budgeted sales revenue = Budgeted units sold × Selling price per unit

The formula assumes a constant selling price within the relevant category. If prices differ by month or product, revenue is calculated separately and summed. Sales estimates should consider historical data, market research, price changes, seasonality, competitor actions and sales-force information.

2.2 Production Budget

A manufacturing entity must budget production rather than simply sales. The basic relationship is:

Units to be produced = Budgeted unit sales + Desired ending finished goods − Beginning finished goods

All quantities must use the same product definition and period. The policy for desired ending inventory should reflect customer-service requirements, storage costs, spoilage risk and production lead times.

2.3 Direct-Materials Budget

For each material:

Materials required for production = Units to be produced × Material quantity per unit
Materials to be purchased = Materials required + Desired ending materials inventory − Beginning materials inventory
Purchase cost = Materials to be purchased × Cost per material unit

The calculations assume that material usage standards and purchase prices are stated consistently. Separate budgets may be needed where materials have different suppliers, currencies or delivery schedules.

2.4 Direct-Labour Budget

Direct-labour hours = Units to be produced × Labour hours per unit
Direct-labour cost = Direct-labour hours × Wage rate per hour

The wage rate may include basic pay, overtime premiums and employment-related costs where the organization treats those costs as direct labour. Staffing constraints and labour laws must also be considered.

2.5 Manufacturing Overhead

Variable overhead is often budgeted using an activity driver such as labour hours, machine hours or production units:

Variable overhead = Variable overhead rate × Budgeted activity

Fixed overhead is estimated separately. A cash budget excludes non-cash items such as depreciation, although depreciation is included in the budgeted income statement.

2.6 Selling and Administrative Expenses

These expenses may contain variable and fixed components. Examples include sales commissions, advertising, salaries, rent, information technology and professional services. Managers should identify the timing of cash payments because expense recognition and cash payment may occur in different periods.

2.7 Cash Budget

The cash budget identifies expected cash inflows, outflows, financing needs and surplus cash. Its fundamental relationship is:

Ending cash balance = Beginning cash balance + Cash receipts − Cash payments + Financing proceeds − Financing repayments

A minimum cash balance may be imposed. If the calculated balance falls below that minimum, borrowing is required; if it exceeds the minimum, management may repay debt, invest surplus cash or fund additional projects.

Cash receipts commonly include cash sales, collections from credit customers, asset disposals and borrowings. Payments include purchases, wages, overhead, taxes, capital expenditure, dividends and debt service. Non-cash expenses must not be included as cash payments.

2.8 Budgeted Financial Statements

The budgeted income statement reports expected revenue, cost of sales, operating expenses, finance costs and profit. The budgeted statement of financial position incorporates budgeted closing inventories, receivables, payables, cash, non-current assets, debt and equity.

The master budget is complete only when its schedules are internally consistent. For example, ending cash in the cash budget must equal cash in the budgeted statement of financial position, and closing inventory in the production and materials budgets must agree with the financial statements.

3. Worked Example: An Integrated Budget

Illustrative example. Nova Products expects to sell 1,000 units in April and 1,200 in May. The selling price is £50 per unit. Finished-goods inventory at the beginning of April is 200 units, and desired ending inventory is 20% of the following month’s sales. June sales are expected to be 1,500 units.

April desired ending inventory is 20% × 1,200 = 240 units. Therefore:

April production = 1,000 + 240 − 200 = 1,040 units.

May desired ending inventory is 20% × 1,500 = 300 units. If April’s ending inventory is May’s beginning inventory:

May production = 1,200 + 300 − 240 = 1,260 units.

The sales budget is:

MonthUnits soldPriceRevenue
April1,000£50£50,000
May1,200£50£60,000
Total2,200—£110,000

This example demonstrates why sales, production and inventory assumptions must be coordinated. Producing 2,200 units would not necessarily be correct because the organization is deliberately building inventory.

4. Budgeting Approaches

Participative Budgeting

In participative budgeting, managers and employees affected by a budget contribute to its preparation. Benefits may include better operational information, stronger commitment and improved communication. Risks include budgetary slack, lengthy negotiation and local optimization.

Budgetary slack occurs when managers deliberately underestimate revenue or overstate costs so that targets are easier to achieve. Controls include independent review, benchmarking, transparent assumptions and evaluation of performance using more than a single budget target.

Incremental Budgeting

Incremental budgeting begins with an existing budget and adjusts it for inflation, volume changes, salary increases or new initiatives. It is efficient and useful where activities are stable. Its weakness is that it may preserve obsolete spending and assume that historical allocations are justified.

Zero-Based Budgeting

Zero-based budgeting requires activities to be justified from a zero base rather than automatically carried forward. Managers identify decision packages, explain expected benefits and rank alternatives. It can expose waste but may be expensive, time-consuming and unsuitable for essential long-term capabilities whose benefits are difficult to quantify.

Rolling Budgets

A rolling budget continuously adds a new period as the current period ends. A twelve-month rolling budget always covers the next twelve months. Rolling budgets improve recency and responsiveness but require regular data collection and may cause employees to feel that targets are continually moving.

Activity-Based Budgeting

Activity-based budgeting begins with expected demand for activities and then estimates the resources needed to perform them. It is particularly useful where overhead is driven by setups, orders, inspections, deliveries or customer service rather than by production volume alone.

For an activity cost pool:

Budgeted activity cost = Expected activity volume × Budgeted cost per activity unit

The cost per activity unit should be supported by capacity and resource analysis. Activity-based budgeting can improve causal understanding, but it requires reliable activity data and may be costly to maintain.

5. Flexible Budgets and Performance Evaluation

A static budget is prepared for one activity level. A flexible budget adjusts expected variable costs and revenues to the actual activity level, while fixed costs remain fixed within the relevant range.

Flexible-budget cost = Fixed cost + (Variable cost per activity unit × Actual activity)

This formula assumes a linear cost relationship and constant variable cost per unit within the relevant range. It should not be applied where step costs, nonlinear prices or capacity changes are material.

Suppose budgeted variable cost is £8 per unit, fixed cost is £12,000 and actual output is 2,500 units. The flexible budget is:

£12,000 + (£8 × 2,500) = £32,000.

Comparing actual cost with a static budget may confuse volume effects with efficiency effects. A flexible budget provides a better control benchmark. Common variances include:

  • Sales-volume variance: difference caused by actual volume differing from budgeted volume.
  • Price or rate variance: difference caused by actual selling prices or input rates differing from standard rates.
  • Efficiency or usage variance: difference caused by using more or fewer inputs than expected for actual output.

Variances are signals for investigation, not automatic evidence of poor management. A favourable labour-rate variance may result from hiring less-qualified workers and create an unfavourable efficiency or quality variance later.

6. Forecasting and Scenario Planning

Forecasts support decisions when the future is uncertain. Judgmental methods use expert opinion, sales-force estimates and customer information. Quantitative methods use historical patterns and relationships.

A simple moving average forecast is:

Ft+1 = (Dt + Dt−1 + … + Dt−n+1) ÷ n

where Ft+1 is the forecast for the next period, Dt is actual demand in the latest period, and n is the number of periods averaged. The method assumes that recent observations are representative and gives equal weight to each included period. It may respond slowly to sudden changes.

Exponential smoothing gives greater weight to recent observations:

Ft+1 = αDt + (1 − α)Ft

where 0 ≤ α ≤ 1, Dt is actual demand and Ft is the current forecast. A high α responds rapidly but may be volatile; a low α is smoother but slower to adapt. Forecast accuracy can be assessed using measures such as mean absolute deviation:

MAD = ∑|Dt − Ft| ÷ n

where n is the number of forecast errors. MAD is expressed in the same units as demand and should be compared across methods using the same observations.

Scenario planning does not claim to predict one exact future. It constructs coherent alternative futures, such as a base case, optimistic case and adverse case. Each scenario should specify assumptions about volume, prices, costs, exchange rates, capacity, customer payment and financing. Sensitivity analysis changes one assumption at a time; scenario analysis changes a connected set of assumptions.

7. Behavioural and Organizational Implications

Budgets influence behaviour because they allocate resources and affect rewards, promotion and managerial reputation. Positive effects include clarity of expectations, coordination and accountability. Negative effects may include:

  • manipulating forecasts or delaying necessary expenditure;
  • creating slack;
  • focusing on short-term accounting results;
  • rejecting valuable investments because they worsen the current budget;
  • excessive spending near year-end to protect next year’s allocation;
  • blaming departments for factors outside their control.

A sound responsibility-accounting system distinguishes controllable from uncontrollable factors. Managers should be evaluated on information relevant to their decisions, and performance measures should include quality, customer service, innovation, safety and sustainability where these support strategy.

Senior management should communicate that budgets are decision aids rather than instruments for punishment. Participative processes should be genuine, assumptions should be documented and significant revisions should be governed transparently. Ethical reporting requires that managers do not knowingly conceal risks, inflate needs or manipulate timing to obtain resources.

8. Technology, Governance and Contemporary Practice

Enterprise resource planning systems integrate sales, purchasing, production, payroll and general-ledger data. Business-intelligence tools enable dashboard reporting, driver-based models and rapid scenario analysis. Artificial intelligence can assist with demand forecasting, anomaly detection and pattern recognition, but its outputs depend on data quality and model design.

Important controls include authorization of assumptions, version control, access restrictions, audit trails, segregation of duties and review of unusual changes. AI-supported forecasts should be explainable enough for management to understand material drivers and limitations. Human review remains essential where forecasts affect employment, credit, investment or public reporting.

Contemporary organizations increasingly use beyond-budgeting practices, including rolling forecasts, relative performance measures and decentralized decision-making. These approaches can improve agility but do not eliminate the need for resource planning or financial discipline. Environmental and social factors may also be incorporated through carbon budgets, energy budgets, workforce measures and sustainability targets.

9. Applied Case: Meridian Homeware Ltd.

This is an illustrative case. Meridian Homeware manufactures kitchen equipment. Its annual budget was prepared using last year’s sales volume plus 5%. During the year, a major retailer reduced orders, aluminium prices increased, and customers demanded shorter delivery times. Managers continued to be assessed against the original static budget.

Problem. The production manager built inventory to meet the original sales plan, while the purchasing manager bought materials in large quantities to obtain volume discounts. Cash became tight, inventory turnover declined and the company breached its internal minimum cash policy.

Analysis. The static budget concealed the sales-volume effect and encouraged local decisions. The purchasing manager’s favourable price variance was partly offset by storage and financing costs. The production manager appeared inefficient only because the sales plan was unrealistic. The cash budget had not been updated when customer collection periods lengthened.

Approach. Meridian introduced a rolling twelve-month forecast, a flexible production budget and monthly scenario analysis. The base scenario used current retailer orders; the adverse scenario assumed a further 10% decline and a 5% material-price increase. Activity-based analysis identified purchase orders and urgent deliveries as significant overhead drivers. Performance reports separated volume, price, efficiency and working-capital effects.

Outcome. Management reduced unnecessary purchases, renegotiated delivery schedules and preserved the minimum cash balance. Managers were evaluated using controllable measures and shared indicators for service, inventory and cash. The company retained an annual strategic budget but used rolling forecasts for operational decisions.

Learning points. A budget must be updated when its assumptions cease to be credible. Flexible budgets improve interpretation, but they do not replace managerial judgement. Cross-functional measures are necessary when one department’s decision affects another department’s costs or cash flows.

Challenges and Limitations

Budgeting relies on estimates and is therefore exposed to uncertainty, bias and model error. Historical data may not represent a changed market. Detailed budgeting can consume substantial time, and excessive precision may create false confidence. Financial budgets can also understate intangible assets such as employee capability, customer loyalty and innovation.

The appropriate response is not to abandon budgets but to use documented assumptions, ranges, scenarios, rolling forecasts, sensitivity analysis and post-period learning. Budget models should be challenged by people with operational knowledge and reviewed when material conditions change.

Chapter Summary

Budgeting converts organizational plans into quantified operating and financial targets. The master budget integrates the sales, production, materials, labour, overhead, expense, cash and financial-statement budgets. The sales budget commonly drives operations, while cash budgeting identifies liquidity requirements. Participative, incremental, zero-based, rolling and activity-based approaches differ in information requirements, cost and behavioural effects. Flexible budgets provide a fairer benchmark by adjusting variable costs to actual activity. Forecasting estimates likely outcomes using judgemental or quantitative methods, while scenario planning explores coherent alternative futures. Effective budgeting requires reliable data, appropriate controls, ethical conduct and attention to behaviour. Technology improves integration and forecasting but does not replace professional judgement.

Key Terms

Budget: A quantified plan for a specified period.

Budgetary control: The comparison of actual results with budget expectations and investigation of significant differences.

Cash budget: A schedule of expected cash receipts, payments, financing and closing cash.

Forecast: An estimate of likely future results.

Flexible budget: A budget adjusted to the actual level of activity.

Master budget: The integrated set of operating and financial budgets.

Operating budget: A budget covering revenues, production and operating costs.

Financial budget: A budget covering cash, financing and projected financial statements.

Participative budgeting: Budget preparation involving managers and employees affected by the plan.

Budgetary slack: Deliberate understatement of expected performance or overstatement of required resources.

Incremental budgeting: Revising an existing budget by an increment or percentage.

Zero-based budgeting: Requiring activities and expenditures to be justified from a zero base.

Rolling budget: A budget continuously extended by adding a new future period.

Activity-based budgeting: Budgeting resources from expected activities and their cost drivers.

Scenario planning: Analysis of several internally consistent possible futures.

Sensitivity analysis: Testing the effect of changing one assumption or variable.

Variance: The difference between an actual amount and a budgeted or standard amount.

Responsibility accounting: Assigning performance accountability to organizational responsibility centres.

Budgetary slack: Deliberate creation of easily attainable targets or excessive resource allowances.

Driver: A factor that causes or explains a cost, revenue or activity level.

Review Questions

Short Answer Questions

  1. Distinguish between a budget and a forecast.
  2. State the formula for units to be produced and explain each component.
  3. Why is a cash budget different from a budgeted income statement?
  4. What is budgetary slack?
  5. Explain one advantage and one limitation of rolling budgets.

Long Answer Questions

  1. Explain the purpose and sequence of the master budget for a manufacturing organization.
  2. Compare incremental, zero-based, participative and activity-based budgeting.
  3. Explain how flexible budgets improve performance evaluation.
  4. Discuss behavioural risks associated with budgets and recommend controls.
  5. Evaluate the role of technology and AI in budgeting and forecasting.

Analytical / Application Questions

  1. A company expects sales of 4,000 units in June and 5,000 in July. Desired ending finished goods are 25% of next month’s sales, and beginning June inventory is 900 units. Calculate June production.
  2. A flexible budget contains fixed cost of £18,000 and variable cost of £6 per unit. Actual activity is 3,200 units. Calculate the flexible-budget cost and explain why it is preferable to comparing actual cost with a static budget based on 2,500 units.
  3. Design a base, optimistic and adverse scenario for a retailer facing uncertain demand, inflation and customer payment periods. Identify the assumptions and management actions for each scenario.

Multiple Choice Questions with Answers

Question 1

Which budget normally provides the starting point for a manufacturing master budget?

A. Sales budget

B. Cash budget

C. Budgeted statement of financial position

D. Direct-labour budget

Correct Answer: A. Sales budget

Question 2

A company expects sales of 2,000 units, wants ending inventory of 300 units and has beginning inventory of 250 units. What is required production?

A. 1,450 units

B. 1,950 units

C. 2,050 units

D. 2,550 units

Correct Answer: C. 2,050 units

Question 3

Which budgeting approach requires activities to be justified from a zero base?

A. Incremental budgeting

B. Zero-based budgeting

C. Rolling budgeting

D. Flexible budgeting

Correct Answer: B. Zero-based budgeting

Question 4

What is the primary purpose of a flexible budget?

A. To eliminate fixed costs

B. To adjust budget expectations for actual activity

C. To replace the cash budget

D. To guarantee favourable variances

Correct Answer: B. To adjust budget expectations for actual activity

Question 5

A cash budget includes which of the following?

A. Depreciation as a cash payment

B. Expected cash receipts and payments

C. Only credit sales

D. Only long-term transactions

Correct Answer: B. Expected cash receipts and payments

Question 6

Budgetary slack occurs when a manager

A. Uses actual activity in a flexible budget

B. Reports all costs at their original amount

C. Deliberately understates expected performance or overstates resource needs

D. Updates a rolling forecast

Correct Answer: C. Deliberately understates expected performance or overstates resource needs

Question 7

In the exponential-smoothing formula Ft+1 = αDt + (1 − α)Ft, α must generally be

A. Less than −1

B. Between 0 and 1 inclusive

C. Greater than 100

D. Equal to actual demand

Correct Answer: B. Between 0 and 1 inclusive

Question 8

Activity-based budgeting focuses primarily on

A. Historical spending percentages

B. Expected activities and their resource drivers

C. Tax reporting requirements only

D. Eliminating all overhead

Correct Answer: B. Expected activities and their resource drivers

Question 9

If fixed cost is £10,000 and variable cost is £4 per unit, what is the flexible-budget cost at 3,000 units?

A. £12,000

B. £13,000

C. £22,000

D. £30,000

Correct Answer: C. £22,000

Question 10

Which statement best describes a forecast?

A. An authorized target that cannot be changed

B. An estimate of likely future outcomes based on current information

C. A record of historical transactions

D. A schedule containing only fixed costs

Correct Answer: B. An estimate of likely future outcomes based on current information

Management Accounting
Chapter 6 of 15