The objective-and-task budget calculator: cost what the objectives need

The objective-and-task method sets a communication budget by costing what the objectives require: decide what must change, list the tasks that will change it, cost each task, and add them up. The calculator takes up to six task lines and a contingency percentage and returns the subtotal, the contingency amount and the total. The tool's notes keep each line's purpose and assumption beside its cost.

Objective and task is one of the classic budgeting methods taught in Philip Kotler and Kevin Lane Keller's Marketing Management, alongside the affordable method, a percentage of sales and competitive parity¹. Research on how budgets are actually set is humbling. A 2020 study in the Journal of Marketing Research broke the budget decision into baseline spending, experimentation, the advertising-to-sales ratio and competitive parity, and found decision-making best described as boundedly rational: part analysis, part habit². A survey of UK advertisers found judgement-based methods, above all "what is affordable", dominant, with objective-and-task and return-on-investment methods also well represented³. Interviews with brand managers in multi-brand companies concluded that funds should follow forward-looking objectives rather than historical precedent⁴. And John Philip Jones argued in the Harvard Business Review in 1990 that tying budgets to sales by a fixed rate hurt their accuracy, and that a brand's share of market compared with its share of voice was a better guide⁵.

1. Write the objectives at the top of the notes, with audiences and deadlines.
2. Name up to six tasks in the notes ("creative production", "paid social reach", "search", "launch PR", "email and CRM", "research and measurement") and what each must achieve.
3. Enter each task's cost in the calculator. A task you have not costed yet can stay at zero.
4. Set the contingency, typically a small share kept for tests and surprises.
5. Check the total three ways: against share of voice (use the ESOV calculator), last period's results, and what finance can bear. If they disagree, revisit the tasks, not just the total.

Illustrative figures for the fictional Ourika Roasters' launch; not benchmarks.

Objectives: subscription revenue in year one; café regulars aware of the subscription by week eight. Tasks: creative production 15,000; paid social reach 20,000; search 8,000; launch PR 6,000; email and CRM set-up 4,000; research and measurement 3,000. Contingency 10%. The calculator returns a subtotal of 56,000, a contingency of 5,600 and a total of 61,600, in whatever currency you entered.

The checks then do the work: if share of voice at that spend sits far below the brand's share of market, the plan is not spending like a brand that intends to grow.

• Costing tasks without objectives The list becomes last year's plan with new prices.
• No assumptions written down Nobody can learn which line worked.
• Forgetting the unglamorous lines Production, people, tools and research belong in the build-up.
• Treating the total as the answer The checks against share of voice and affordability are part of the method^3, 5.

• Kotler and Keller on budgeting methods¹.
• Kolsarici, Vakratsas and Naik on how budgets are decided²; the UK advertisers survey³; Low and Mohr⁴; Jones on share of voice⁵.
• On IMC Report: budgeting for IMC.