How to Create a Marketing Budget: The Complete Planning Guide
Written by
CMO with 10+ years experience managing marketing budgets at B2B SaaS companies
The framework CMOs and marketing leaders use to plan, structure, get approval for and track a marketing budget, in 12 chapters that follow the planning cycle. Read it in order, or jump to the stage you are in.
Quick answer
To create a marketing budget, start from last year’s spend and conversions, agree the growth target and your budget autonomy with the CEO, choose a budgeting method (objective-and-task to build, percentage of sales to check), set one key conversion metric and a CPA target, structure the budget into three to eight categories with owned line items, analyze it with six standard charts, then get sign-off from finance in their cost-center format. The average marketing budget is 11.4% of the total company budget (6.7 to 7.4% for B2B, 11.7 to 21.5% for B2C, CMO Survey 2025), and the planning cycle takes eight to ten weeks.
Key takeaways
- Marketing needs its own budget structure, organized by category, channel and goal, with a translation layer to finance’s cost centers.
- Benchmark first: marketing averages 11.4% of total company budget; B2B companies 6.7 to 7.4%, B2C 11.7 to 21.5% (CMO Survey 2025).
- One key conversion metric and a blended CPA target drive every allocation decision; paid channels should return at least 4:1.
- Keep three to eight categories. Headcount, contractors, paid media, promotion and tools are the must-haves; never use “Other”.
- Build one plan aligned with the agreed strategy. Use budget versions later to show the effect of cuts, not as upfront hedges.
- Track actuals monthly by channel, keep line items within ±5% of plan, and reallocate freely inside approved quarterly and annual totals.
CMO homework
What to know before the first line item: where you stand against benchmarks, what the CEO expects, and what finance needs.
- 1Benchmark Your CompanyThe average marketing budget is 11.4% of total company budget (CMO Survey 2025): 7.4% for B2B product, 6.7% B2B services, 21.5% B2C product, 11.7% B2C services. Benchmark your own company and use the number as a ceiling check.5 min read
- 2Stakeholder AlignmentWhat to agree with your CEO before marketing budget planning starts: the company’s growth and risk approach, your level of budget autonomy (four levels), the five questions to ask, and how to confirm the approval process.7 min read
- 3Finance Team RulesWhy a marketing budget needs its own structure, and the finance-team rules to collect before you plan: the submission template, cost center codes and GL accounts, exchange-rate policy, VAT and certificate-of-residence properties, multi-year horizon and how compensation is handled.9 min read
Build your budget plan
How the number is set, how the year is planned, and how the budget is structured down to the line item.
- 4Budgeting MethodsThe six ways to set a marketing budget, each with its formula and a worked number on the same $20M company: percentage of sales, objective-and-task, competitive parity, affordable, zero-based, and top-down vs bottom-up.9 min read
- 5The 70/20/10 RuleThe 70/20/10 rule puts 70% of the marketing budget into proven channels, 20% into promising adjacent bets and 10% into experiments. A worked example on a $1.6M budget, when the split works, when it fails, and the 3-3-3 rule.7 min read
- 6Planning Process and TimelineThe marketing budget planning process in seven phases with time estimates, a 10-week planning calendar, how to split the work across channel owners, and when budget versions are worth creating.9 min read
- 7KPIs and CPA TargetsPick one conversion metric, calculate blended and channel CPA, derive a CPA target from a revenue goal with a worked example, and set the LTV and ROI thresholds finance expects.7 min read
- 8Budget Categories and AllocationThe five must-have marketing budget categories, typical percentage splits, the eight line item properties to track, how to set the total, and how to map and allocate spend across channels.12 min read
- 9Marketing Budget ExamplesThree worked marketing budget examples ($250k seed-stage, $1M growth-stage, $5M mid-market B2B SaaS) broken down by category, by channel and by quarter, with sample line items and their properties.10 min read
Get budget approval
The self-review, the team review, and what the CEO, board and finance each need to sign off.
Execute and track
Tracking actuals against plan every month, and moving or cutting budget without losing credibility.
- 11Budget vs Actual TrackingSet up plan vs actual tracking for a marketing budget: the three variance formulas, acceptable variance thresholds, automated ad platform and invoice feeds, and the fields to log for every variance.8 min read
- 12Budget Cuts and ReallocationHow to move marketing dollars between channels within approved totals, what triggers mid-year budget revisions, the order to cut in, and how to present a reduced budget without losing credibility.9 min read
Frequently asked questions
What is a marketing budget?
- A marketing budget is the approved amount a company will spend on marketing over a period, usually a fiscal year, broken into categories such as headcount, contractors, paid media, promotion and tools, and into line items with owners. It is planned against a conversion target and tracked monthly against actual spend.
How much should a marketing budget be?
- The CMO Survey 2025 puts the average at 11.4% of total company budget: 7.4% for B2B product companies, 6.7% for B2B services, 21.5% for B2C product and 11.7% for B2C services. Growth-stage companies spend more, mature ones less. Use the marketing budget calculator for a range based on industry, revenue and growth target, and the benchmarks by industry for the full breakdown.
What is the 70/20/10 rule for a marketing budget?
- The 70/20/10 rule puts 70% of the budget into proven channels and programs, 20% into promising bets adjacent to what already works, and 10% into experiments. It is a portfolio heuristic rather than a benchmark. Under cost pressure most teams drift toward 80/15/5, and in a growth year the experimental share can justifiably be higher, as long as every bet has an evaluation timeline.
What is the 3-3-3 rule for marketing?
- There is no single definition. The most common version says test three channels, with three messages, for three months before judging results. Treat it as a testing cadence for new initiatives, not as a way to split the budget; the guide’s approach is one new initiative per quarter, evaluated within that quarter.
Top-down or bottom-up: which is better for a marketing budget?
- Use both. Top-down gives you the envelope (a growth target and a percentage-of-revenue range from the CEO or board); bottom-up builds the line items from channel CPAs, conversion targets and resource needs. Reconcile them in the target-setting phase. A pure top-down number ignores channel capacity; a pure bottom-up plan usually overshoots what finance will approve.
How long does it take to plan a marketing budget?
- Eight to ten weeks end to end: three to four weeks of marketing work (baseline, initiatives, targets, resource mapping, analysis, pitch) and the rest in finance and board review with one or two revision rounds. Start about three months before the fiscal year begins.
What is the difference between a marketing budget and a marketing plan?
- The marketing plan states what you will do and why: targets, audiences, channels, initiatives. The marketing budget states what it costs, by category and line item, and how spend is phased across the year. Plan the initiatives and their expected impact first, then budget the resources needed to execute them.
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