How to allocate a small business marketing budget

"How much should I spend on marketing?" It's one of the questions we get asked most, and the easy answer -"it depends"- helps nobody. So we're going to give you concrete criteria to decide how much to invest and, more important still, how to split it. Because falling short is just as bad as throwing money at the wrong channel.

We work with small businesses across Andalusia and Madrid, and the pattern repeats itself: the ones that grow aren't the ones that spend most, they're the ones that allocate best. Let's get to it.

How much to invest: a realistic benchmark

As a rough guide, many small businesses put between 5% and 10% of their revenue into marketing, and businesses looking to grow fast or just starting out tend towards the higher end. But more than the percentage, what matters is the goal: maintaining isn't the same as growing, nor is winning cheap customers the same as high-value ones.

The key is to think in terms of return, not spend. If each new customer leaves you €500 and acquiring them costs you €100, the limit isn't "how much can I afford", it's "how many customers can I handle".

Marketing stops being a cost the day you know how much it costs to win a customer and how much they leave you.

First, before advertising: the foundations

Many people want to put the cart before the horse: they pour money into ads when their website doesn't convert or their brand doesn't inspire trust. That's throwing the budget away. Before amplifying, make sure the basics are solid.

• A fast website that converts: if the foundation fails, everything else bleeds out.
• A coherent brand that builds trust.
• Your Google listing and local SEO in order: free, highly profitable traffic.
• A system to capture and follow up on contacts.

These foundations make every euro you later put into advertising work much harder. Without them, you're amplifying a leaky bucket.

How to allocate it according to your stage

There's no single formula, but there are criteria depending on where you stand:

• If you're starting out: prioritise the foundations (website and brand) and local SEO. A bit of advertising to validate what works.
• If you already sell and want to grow: split between content and social media (mid-term brand) and advertising (short-term results). SEO always in the background.
• If you're established: invest in retention (email, content), in scaling what already works and in setting yourself apart from the competition.

A healthy rule: combine quick-return actions (advertising) with actions that build for the long term (SEO, content, brand). Living solely off advertising makes you dependent; living solely off the long term leaves you short of cash in the near term.

Measure and move money to what works

The budget isn't decided once in January and forgotten. It gets reviewed. Look at which channel brings you customers at the best cost and move money towards it; cut without remorse whatever doesn't deliver after a reasonable test period. Marketing managed well is a tap you open and close based on the data, not a blind bet.

At Prisma we help small businesses in Andalusia and Madrid decide how much to invest and on what, with a clear plan and metrics that show what's working. If you feel like you're spending on marketing without knowing what it gives back, that's the first thing we put in order.