How Much Should You Spend on Sales and Marketing to Grow? Setting the Right Target

Most small business owners set a marketing budget one of two ways: they pick a number that feels comfortable, or they spend what is left over after everything else. Neither approach is a strategy. Both leave money on the table or waste it, and you usually do not find out which until after the fact.

There is a more rational method. It starts with knowing what growth is worth to you and working backwards.

What Owners Get Wrong

The most common mistake is treating marketing spend as a cost to minimize rather than a lever to pull. When revenue is strong, marketing gets cut because it feels unnecessary. When revenue is soft, marketing gets cut because there is no cash. The result is an inconsistent spend pattern that makes it impossible to evaluate what actually works.

The second mistake is comparing your spend to competitors or industry averages without adjusting for your business model. A company with 70% gross margins can afford to spend more to acquire a customer than one with 30% margins. A subscription business that retains customers for five years can spend more per acquisition than a project business with one-time engagements. Averages are a starting point, not a prescription.

The CFO Perspective

The right way to think about a sales and marketing budget is as a percentage of your target revenue, with that percentage set based on how hard you are trying to grow.

A company that wants to maintain its current revenue needs very little new customer acquisition spend. Most of its marketing budget should go to retention and referrals. A company that wants to grow 25% year-over-year needs to fund that growth by acquiring new customers faster than it loses them. Those are completely different budget sizes.

A general framework that works for most small Canadian businesses: if you are maintaining, plan 3% to 5% of revenue for sales and marketing. If you are growing modestly (10% to 15%), plan 7% to 10%. If you are pushing hard (20% or more growth), plan 12% to 20%, with the understanding that high-growth spend often does not pay back in the same year it is incurred.

A B2B consulting firm targeting 20% revenue growth built a marketing budget of 15% of its current revenue. The owner's initial instinct was that the number was too high. After mapping it against customer acquisition cost, average contract value, and average client tenure, the model showed a full payback in under 18 months even on a conservative scenario. The spend was approved. Growth followed.

How to Set Your Number

1. Start with your growth target. A specific number, not a vague "we want to grow." "We want to go from $900,000 to $1,100,000 in revenue next year." That $200,000 gap is what your sales and marketing spend needs to fund.
2. Calculate your average revenue per new client. Divide total revenue by your active client count. This tells you roughly how many new clients you need to hit your target, accounting for any expected churn.
3. Estimate your current customer acquisition cost (CAC). Take what you spent on sales and marketing last year and divide it by the number of new clients you won. That is your current CAC. If you do not have this number, estimate it and note how rough the estimate is.
4. Model the budget. Multiply your target new client count by your CAC. That is your minimum marketing budget. Add 20% as a buffer for things that do not work. If the total is more than you can fund, you either need to improve your CAC through better conversion or lower your growth target.
5. Check the number as a percentage of revenue. Divide your calculated budget by your current revenue. If it falls within the range for your growth tier, you are in a reasonable zone. If it is far above 20%, revisit your CAC assumptions. High CAC is usually a conversion problem, not a budget problem.
6. Separate sales and marketing into two buckets. Marketing is everything spent to create awareness and generate leads. Sales is everything spent to convert them. Knowing the split lets you diagnose whether a growth problem is at the top of the funnel or at the close.

When to Spend More, When to Spend Less

Spend more when you have a proven acquisition channel and you are just adding fuel. Spend less when you do not yet know what works. Spending heavily before you have a repeatable process is mostly waste.

Also consider timing. If your business is seasonal, front-loading marketing spend before your peak season is more efficient than spreading it evenly across 12 months. And if you are close to a capacity constraint, more marketing spend is the wrong move until you can fulfill what you already have.

The number you settle on should feel slightly uncomfortable. Comfortable means you are probably underinvesting in growth. If you want help building a sales and marketing budget tied to your revenue targets and gross margin, book a free call at peterxiacpa.com/book.

Next step: run your numbers through the free CFO scorecard.