How to set a marketing budget from your own numbers

The percentage rule is somebody else’s arithmetic

Ask what a small business should spend on marketing and you get a percentage. Five percent of revenue. Ten if you’re growing. The number is always confident and never explained.

The problem isn’t that the range is wrong. It’s that it’s an average of businesses that have nothing to do with yours. A firm where one new client is worth six thousand dollars over three years and a shop where the average ticket is forty dollars cannot possibly share a budget rule. One of them can spend two hundred dollars to win a customer and be delighted. The other would be out of business by Friday.

A budget built from a percentage tells you what you may spend. A budget built from your own numbers tells you what you should spend, and — more usefully — when to stop.

Start with what a customer is worth to you

Not what they pay the first time. What they’re worth over the whole relationship, including the people they send you.

You can get close without a finance department. Take last year. Add up what you collected, divide by the number of customers who paid you, and you have an average sale. Then ask a harder question: how many of those people bought more than once, and how many years does a typical relationship last?

• Average sale — total collected, divided by customers who paid.
• Repeat rate — how many bought again, and how often.
• Lifespan — how many years a typical relationship runs before it ends or goes quiet.
• Referrals — how many of last year’s customers came from an existing one. This is the number people skip, and it’s often the largest.
• Gross margin — what’s left after the cost of delivering the work. You spend margin, not revenue.

Then decide what you can afford to pay for one

Once you know the value, the affordable acquisition cost is a decision, not a discovery. It’s a fraction of the margin a customer produces, and the fraction depends on how long you have to wait for the money.

If a customer is worth two thousand dollars in margin and pays it all in the first month, you can be aggressive. If that same two thousand arrives over four years, you’re financing the acquisition out of cash you don’t have yet. That’s not a marketing question, it’s a cash-flow question, and it’s the one that sinks people who read a lifetime-value blog post and started spending.

A sane starting point for most small businesses: be willing to spend a quarter to a third of the first year’s margin from a new customer. Not the lifetime. The first year. If the channel works, the later years are profit and you can revisit.

Work backwards to a monthly number

Now the budget builds itself. Decide how many new customers you want this year, multiply by what you can afford to pay for one, and divide by twelve.

Ten new clients a year, four hundred dollars each in affordable acquisition cost, is four thousand a year, or a bit over three hundred a month. That’s a real budget. It came from your business, it survives being questioned, and you can tell in six months whether it worked, because you know exactly what it was supposed to buy.

1. Decide the number of new customers you want in the next twelve months.
2. Multiply by what you can afford to pay for one.
3. Add the cost of keeping the customers you already have — that spend is separate and usually cheaper.
4. Divide by twelve. That’s the monthly ceiling.
5. Check it against cash. If the ceiling is more than you can lose for six months without pain, lower it.

Spend that stops the day you stop paying

Here’s the distinction that matters more than the size of the number. Some marketing is rented and some is owned, and they behave completely differently when times get tight.

Paid advertising is rented. It’s excellent at what it does — it turns money into attention on demand, this week, at a volume you control. But the day the card declines, the traffic is zero. Not lower. Zero. Every month you pay for it, you start again from the same place.

That isn’t an argument against ads. It’s an argument for knowing which kind of spend you’re buying, and for not funding your entire pipeline with the kind that resets monthly.

Spend that compounds

The other kind builds an asset you keep. A list of people who know you and hear from you. A website that ranks for the thing you do. A body of published work that answers the question a buyer types at eleven at night. A CRM that follows up without you remembering to.

Compounding spend is slower and it is much harder to sell, because month one looks like nothing happened. Month twelve looks like a different business. The list you built two years ago costs almost nothing to mail today, and it’s the cheapest revenue you will ever produce, because those people already decided they like you.

The practical version: fund the compounding spend first, at a level you can maintain for two years without heroics, and treat rented spend as the thing you dial up when you have capacity and down when you don’t.

Rented marketing stops the day you stop paying. Owned marketing is worth more in year three than it was in year one.

Blue Ocean Strategies

Budget for consistency, not for a campaign

The most common budgeting mistake we see isn’t spending too little. It’s spending a year’s budget in three months because someone got excited, then spending nothing for the rest of the year.

Marketing that runs for three months and stops does close to nothing. The audience never learns your name, the search engine never sees a pattern, the list never gets used, and the owner concludes that marketing doesn’t work. It didn’t get the chance to.

So set the monthly number at a level you would still pay in a slow quarter. A smaller number you actually sustain beats a bigger one you abandon in month four, every single time.

What to leave out of the number

Two things routinely get counted as marketing budget and shouldn’t be.

The first is pass-through cost. Printing and postage are real money, but they scale with your list, they’re billed at cost, and they’re not a fee. Treat them as a separate line so a growing list doesn’t look like a growing agency bill. We bill print and postage at cost with no markup for exactly this reason — the two numbers should never be blurred together.

The second is your own time. If a project requires ten hours of your attention a month and your hour is worth two hundred dollars, that project costs two thousand dollars more than the invoice says. This is the hidden cost in every do-it-yourself plan, and it’s why the honest comparison is never just the price.

Review it twice a year, not every month

Set the budget, then leave it alone long enough to learn something. Most channels take a quarter before the data means anything, and a decision made from four weeks of noise is a coin flip with extra steps.

Twice a year, sit down with three questions. How many new customers came in, and where did they say they heard about you? Did the cost per customer land near what you budgeted? And what did we build this year that we still own?

If the third answer is nothing, the budget was all rent. Fix that before you raise the number.