The most common way to set a B2B marketing budget is to take last year's figure and move it by a percentage. It is quick, it is easy to explain, and it is almost always the wrong number. It ties the business to what it spent last year rather than what it needs to achieve this year, and it carries every assumption from last year's plan forward without anyone checking whether they still hold.

This guide covers the benchmarks, the brand and activation split, and the calculation. Use them in reverse order: the calculation produces a budget you can defend, and the benchmarks are how you check it. If you are already past the setting stage and simply need to protect the number, start with how to defend your marketing budget to the CFO.

B2B Marketing Budget Benchmarks: What Companies Actually Spend

Two research programmes publish the numbers most budget conversations rely on. They survey different populations, which is why the numbers differ. Knowing which population is closest to your business tells you which figure to use.

Both surveys ask respondents to report their own budgets, so treat the figures as ranges. Gartner's sample skews to very large companies; The CMO Survey's skews to US firms across sizes.

Two things stand out. B2B budgets sit well below B2C, because a B2B company's revenue is typically concentrated in fewer, larger buyers and more of the go-to-market cost sits in sales. And the gap between B2B product (6.4 per cent) and B2B services (9.0 per cent) is wide, because services firms are selling reputation, and reputation has to be built in public.

Read the benchmarks with one more Gartner finding in mind: 56 per cent of CMOs in the same 2026 survey say their budget is not enough for the strategy they have been asked to deliver. A benchmark tells you what marketers are getting. It does not tell you what the strategy needed, and most of the people reporting the average think it is too low.

Why Last Year Plus a Percentage Is the Wrong Starting Point

Incrementing last year's budget answers the question "what did we spend before?" with great precision. The question the business needs answered is "what do we need to spend to hit this year's revenue objective?" Those are rarely the same number.

Markets move. Competitors raise their spend. The channel that was cheap last year is crowded this year. A new segment or region needs investment that has no line in last year's plan. A budget built from last year's number is built for last year's business.

The worst version of this is common enough to name. Finance sets a revenue growth target of, say, 10 per cent, and in the same planning round cuts the marketing budget by 5 per cent, applied flat across every team with no strategic guidance and no prioritisation. We have sat in those planning rounds. The two decisions are made in separate spreadsheets by people who never have to reconcile them, and marketing is then asked to explain in June why the pipeline is short. A budget process that lets those two numbers be set independently is not a budget process. It is arithmetic.

The cost of getting this wrong shows up late, and the evidence for why comes from share of voice. Share of voice is your brand's share of the total advertising and media presence in your category: if the category spends US$100 million a year on marketing and you spend US$10 million, your share of voice is 10 per cent. Les Binet and Peter Field's analysis of the IPA effectiveness databank, extended to B2B for the LinkedIn B2B Institute, finds that brands whose share of voice runs above their share of market tend to grow, and brands whose share of voice falls below their share of market tend to shrink. The effect arrives a year or more after the spending decision, which is why a flat or cut budget feels safe in the year it is set and expensive the year after.

Keep last year's figure as a reference point and a sanity check. Do not make it the anchor.

How to Set a B2B Marketing Budget From the Revenue Objective

The most defensible B2B marketing budget starts with the revenue goal and works backwards through the pipeline. Finance can follow the logic, challenge the assumptions and approve the result, because it is the same logic Finance applies to any other investment.

That only works if marketing is in the room when the revenue target is set, not handed a number afterwards. The growth target, the markets it will come from and the marketing investment needed to reach them are one decision, and marketing has to be at the table from the start of budget planning to make it. If your first sight of the target is the finished plan, the most useful thing you can do this year is change that for next year.

Finance teams will recognise the method below as zero-based budgeting applied to marketing: every line is justified from the objective rather than carried over from last year. Use the label if it helps the conversation. The one caution is that zero-based budgeting is often introduced as a cost-cutting exercise, and brand investment, whose returns arrive on a lag, is the line most likely to fail a one-year justification. Build the brand allocation in from the start rather than defending it at the end.

Step 1: Turn the revenue target into a pipeline target

Start with the new revenue marketing is expected to source or influence. Divide by average deal size to get the number of deals. Divide by the win rate to get the pipeline required. If the business needs US$8 million in new revenue, the average deal is US$200,000 and the win rate is 25 per cent, marketing needs to contribute to US$32 million of qualified pipeline.

Step 2: Work back up the funnel to a demand-generation floor

Apply your own conversion rates in reverse: what share of qualified opportunities came from marketing-qualified leads, and what share of leads qualified. That gives the lead volume you need. Multiply by a blended cost per lead across your channel mix and you have the floor for demand generation. Use your own historical rates here. Industry conversion benchmarks vary so widely by deal size and sales motion that they are more likely to mislead than to help.

Step 3: Add the brand allocation

Demand generation converts the buyers who are in market now. Brand investment reaches the ones who are not, which at any given moment is most of them: the 95:5 rule from the LinkedIn B2B Institute and Ehrenberg-Bass puts around 95 per cent of category buyers out of market in any quarter. The next section covers how to size this allocation. For a growth-stage business it is rarely less than 40 per cent of the total.

Step 4: Add the costs that are not media

People, agencies, technology and data are part of the marketing budget in both benchmark surveys, so include them before comparing your total to the table above. Gartner's 2026 survey found CMOs now allocate 15.3 per cent of the marketing budget to AI. Whatever your own figure, make it a visible line rather than something absorbed into everything else, so that its contribution can be judged.

Step 5: Pressure-test against the benchmarks

Now compare your total to the benchmark range for your sector. If you land inside it, the benchmarks support your case. If you land well above it, you need a reason the business will accept: an aggressive growth target, a new market, a competitor outspending you. If you land well below it, ask whether the revenue target is realistic at that level of investment. The objectives-first method surfaces that gap in October rather than in the following June, when the pipeline shortfall has already happened.

B2B Marketing Budget Allocation: Brand Versus Activation

The best-evidenced allocation rule in marketing comes from Binet and Field. Across the IPA databank, the split that maximised long-term growth was roughly 60 per cent brand building to 40 per cent sales activation. When they ran the same analysis on B2B cases for the LinkedIn B2B Institute, the optimum moved closer to 50:50, with brand still carrying about half of the budget.

Most B2B companies sit a long way from either number. Activation is measurable in the quarter it runs, brand is not, and budgets drift toward what can be reported. Binet and Field's own caveat matters too: the B2B dataset was small and skewed to large UK advertisers, so the 50:50 figure is a starting point rather than a law.

Three variables justify moving away from it:

Growth stage. A business trying to double in three years needs to build mental availability with buyers it has never reached. That argues for more brand, not less. An established leader with strong category presence can lean further into activation.

Competitive intensity. If well-funded competitors are raising share of voice, holding your spend flat lowers your share of voice relative to theirs, and the share-of-market consequence follows on the lag described above.

Deal economics. High contract values, long cycles and strong retention justify a higher acquisition cost per customer, which supports a larger total budget. Low contract values and high churn demand tighter channel concentration and a leaner total.

Making the Case With Evidence Finance Will Accept

Present the budget as a revenue investment with a documented return logic, not as a cost line next to travel and office space. Cost language invites cost management. Investment language invites return analysis, and "is this a good investment?" is a far better question to be asked than "can we do this for less?"

Bring two pieces of evidence. The first is your own pipeline maths from Step 1: this budget produces this pipeline, and at our win rate that is this revenue. The second is the risk of underinvestment: Binet and Field's share-of-voice finding gives you a named, external reason why cutting or freezing the budget costs market share a year later, after the next budget cycle has already been set.

Model both directions. Show what the requested budget should produce and what a 20 per cent smaller one would produce in pipeline shortfall. Finance trusts a marketer who has already modelled the downside far more than one arguing only for the upside. Then translate the whole thing into the format the room expects; our guide to what the board expects from B2B marketing covers the one-page brief that gets sign-off before the full document.

One trap to avoid in the same meeting: proving the budget with an attribution dashboard. Attribution records which touchpoints preceded a sale, not which ones caused it, and it systematically flatters the activation half of the budget. If that is the evidence base in the room, read why marketing attribution misleads before you present.

B2B Marketing Budget FAQs

What percentage of revenue should a B2B company spend on marketing?

The benchmark range is about 6 to 9 per cent of revenue: 6.4 per cent for B2B product companies and 9.0 per cent for B2B services companies in The CMO Survey (Spring 2025), and 7.8 per cent across all sectors in Gartner's 2026 CMO Spend Survey. Growth-stage companies and those entering new markets typically need to spend above the range.

How should a B2B marketing budget be allocated between brand and demand generation?

Binet and Field's analysis for the LinkedIn B2B Institute found the growth-maximising split in B2B was close to 50:50 between brand building and sales activation, compared with roughly 60:40 across all sectors. Weight further toward brand when growing fast or facing better-funded competitors, and toward activation when you already hold a strong category position.

How do you calculate a marketing budget from a revenue target?

Divide the new revenue target by average deal size to get deals required, then by win rate to get pipeline required. Work back up through your lead-to-opportunity conversion rates to get lead volume, multiply by blended cost per lead for the demand-generation floor, then add the brand allocation and the non-media costs (people, agencies, technology, data).

Should a B2B SaaS company use the same benchmarks?

Use the B2B product figure as the reference range, but expect to sit above it while growing. Subscription businesses recover acquisition cost over the customer's lifetime rather than in the first sale, which justifies a higher acquisition budget as long as retention holds. The objectives-first calculation matters more than the benchmark here because the unit economics differ so much between companies.

What is the biggest mistake in B2B marketing budget setting?

Setting the number before the strategy. A budget set as last year plus a percentage, or as a benchmark percentage of revenue, decides what marketing can do before anyone has decided what marketing needs to do. Objective first, strategy second, budget third.

Go Deeper

This guide is the how-to. The argument behind it, that the budget gets set before the strategy and that benchmarks get mistaken for answers, is made in the Back to Marketing essay The Marketing Budget Trap. The In Practice companion, How to Build a Marketing Budget from Business Objectives, works the same sequence through three investment scenarios.

Sources

• Gartner, 2026 CMO Spend Survey, published May 2026; 401 CMOs and marketing leaders in North America, the UK and Europe, surveyed January to March 2026. Marketing budgets at 7.8% of company revenue (7.7% in 2025); 56% report insufficient budget for their 2026 strategy; 15.3% of marketing budget allocated to AI.
• The CMO Survey (Duke University, Fuqua School of Business), Spring 2025 edition; 281 senior marketers, 58% from B2B companies. Marketing budget as a percentage of company revenue: 9.4% overall, 6.4% B2B product, 9.0% B2B services, 15.5% B2C product.
• Les Binet and Peter Field, The Long and the Short of It, IPA, 2013: the roughly 60:40 brand-to-activation split and the share-of-voice to share-of-market relationship across the IPA databank.
• Les Binet and Peter Field for the LinkedIn B2B Institute, The 5 Principles of Growth in B2B Marketing, 2019: B2B cases from the IPA databank showing growth for brands with share of voice above share of market and a brand-to-activation optimum near 50:50, with the authors' caveat that the B2B sample is small and skewed to large UK advertisers.
• LinkedIn B2B Institute with the Ehrenberg-Bass Institute, The 95-5 Rule: around 95% of category buyers are out of market at any given time.