Marketing budget: how do you split your B2B budget smartly?

Setting your marketing budget does not start with a percentage of your revenue, but with your goal: how many qualified leads and customers do you need, and what may a customer cost you? Only then do you split the money across channels. In this article you will read how to build a realistic B2B marketing budget, how to split it smartly across channels that create demand and channels that capture demand, and where your money delivers most in practice. Short version: steer on revenue and pipeline, not on clicks and impressions.

Work it out yourself: determine your budget and a suggested split with our free marketing budget calculator.

How do you work out how much marketing budget you need?

The classic rule of thumb (spending a fixed percentage of your revenue on marketing) is a starting point, not an answer. For a B2B company with a long sales cycle and multiple decision makers, such a percentage says nothing about what you actually need to hit your goals. A practical approach to building a marketing budget therefore starts from your goals, not from a rule of thumb.

So work backwards:

• Start with your revenue target. How many new customers do you need this year, and what is your average deal value?
• Work back to leads. How many qualified enquiries do you need to land those customers, given your current lead-to-customer conversion rate?
• Decide what a customer may cost. Weigh your allowable acquisition cost against the lifetime value of a customer. In B2B, where contracts often run for years, that cost may sit higher than you intuitively think.
• Add your fixed costs. Tools, people, content and technology belong in the budget too, not just media spend.

Only once you have these numbers do you know whether your budget is realistic. If you have a goal you cannot possibly hit with your current budget, that is an important conversation to have up front, not afterwards.

Honest advice is part of that: sometimes the conclusion is that you are better off fixing your follow-up and qualification first, before you pump more budget into the top of the funnel. More leads rarely produce more customers if you do not follow them up properly.

Increase, maintain or cut: what do B2B companies do with their budget?

Large-scale research among thousands of marketers, such as this study on marketing budget as a percentage of revenue, shows a clear pattern: most companies, in both B2B and B2C, increase or maintain their marketing budget. Only a small minority of B2B companies plan a cut, and the reasons are almost always economic (tight funding, more expensive loans) rather than marketing not working.

The lesson for you is not “everyone is increasing, so you should too”. The lesson is that standing still means falling behind in practice, the moment your competitors keep investing in visibility and demand creation. In a market where only a small share of your buyers is ready to buy right now, today you are building the brand awareness that will bring you enquiries six or twelve months from now.

At the same time: increasing budget without a plan is burning money. The question is not whether you spend more or less, but what you spend it on.

How do you split your marketing budget across channels?

The biggest mistake in B2B is putting everything on the last click because it is the easiest to measure. That way you only fund the capture of demand that already exists, and not the creation of new demand. A healthy split covers the entire marketing funnel.

Think in three layers:

1. Creating demand (top). Content, organic visibility, building your brand, being present in your sector. This does not produce a direct lead today, but it makes sure people know you and want you when they are ready. This is the essence of demand generation.
2. Capturing demand (middle to bottom). Paid ads on search intent, retargeting and targeted campaigns aimed at people already showing interest. This is where your direct, measurable ROI sits.
3. Conversion and retention. Your website and landing pages that turn visitors into leads, and the follow-up that keeps customers. The cheapest return often lies in converting the traffic you already bring in better.

Shift your budget entirely to layer 2 because it reports best, and your pond dries up as soon as the existing demand has been captured. A good lead generation strategy therefore balances all three layers.

Which channels get more budget in B2B?

The marketer research reveals a few clear shifts that are relevant for B2B:

• Content keeps growing. A large majority of marketers is increasing their content budget, partly because good content is reusable across multiple channels and campaigns. That makes the return per euro higher than it looks at first glance.
• Conversion optimisation is gaining ground. Many marketers are investing more in improving their website and conversion, precisely to offset the rising cost of advertising. Converting better is often cheaper than buying more traffic.
• Retargeting takes priority. Because cold advertising is getting more expensive, budget is shifting towards bringing back people who already know you. You warm up cold traffic with content first, then target more precisely to bring them back.
• Paid search advertising remains important. Many companies are increasing their search budget, mainly because the direct ROI is demonstrable there, even as costs rise.

For B2B specifically: not every trendy channel deserves your budget. LinkedIn remains the logical choice for most B2B players, but many marketers say they find it hard to make the numbers add up there. That is no reason to drop it, but it is a reason to measure sharply and not to scale blindly.

Which numbers should you use to adjust your budget?

This is where most budget discussions take the wrong turn. Clicks, impressions, followers and views are easy to report, but they do not pay your invoices. A growing reach that produces no pipeline is expensive entertainment.

Instead, steer on numbers tied to revenue:

• Qualified leads (MQL and SQL), not the total number of downloads.
• Progression through the funnel: how many of your leads become customers?
• Acquisition cost per customer weighed against customer value across the full lifetime.
• Contribution to pipeline and revenue per channel, even if it is more indirect to measure for demand creation.

That last point matters: the fact that a channel is harder to measure does not mean it has no value. Demand creation at the top of the funnel deserves patience and an honest measurement approach, not a budget freeze because the dashboard shows no direct conversion. If you want to dig deeper into how to tackle this structurally, our B2B marketing playbook will take you further.

Frequently asked questions about setting a marketing budget

What percentage of my revenue should I spend on marketing?

There is no fixed number that fits every B2B company. A percentage is a sanity check at best. Work out your budget backwards instead: start from your revenue target, work back to the number of customers and leads you need, and what a customer may cost you. That gives you a budget you can defend instead of a guess.

Should I cut my marketing budget in an uncertain economic climate?

Most B2B companies do exactly the opposite, and for good reason. Those who keep investing in visibility and demand creation build a lead while competitors pull back. Cutting can be sensible, but then cut the channels that produce no pipeline, not everything at once.

Where should the largest share of my B2B budget go?

Into a healthy mix, not into a single channel. Split it across creating demand (content, brand, visibility), capturing demand (paid ads, retargeting) and conversion (website and follow-up). The exact split depends on how well your market already knows you and where your biggest leak sits.

How do I know whether my marketing budget is paying off?

Look beyond clicks and impressions. Measure qualified leads, progression to customer, your acquisition cost against customer value, and the contribution to your pipeline. If a channel delivers reach but no revenue, it is time to redistribute.

Ready to split your budget smartly?

Setting a marketing budget is not an arithmetic exercise on a percentage, but a choice about where your money brings in the most customers. We help Belgian B2B companies with a marketing strategy that splits their budget across channels that genuinely build pipeline and revenue, and helps them stop paying for vanity numbers. Small team, fast decisions, honest advice, including when something is better left undone. Book your free intake