The Honest Answer: It Depends, But Here Are the Ranges
A common benchmark is that established businesses spend somewhere between 5% and 10% of revenue on marketing, while companies in an aggressive growth phase often push toward 10% to 15%. For a young Irish SME trying to build awareness from a standing start, the higher end is usually necessary. But percentage of revenue is a blunt tool. A better question is: what is a customer worth to you over their lifetime, and what can you afford to spend to acquire one while staying profitable? Once you know that number, your budget starts to set itself.