How Much Should a Small Business Spend on Ads?

The most common question we get is some version of 'what should I be spending?' The honest answer is that the number is an output, not an input. Here is the arithmetic we use.

Start with the revenue you want, not the budget you have

Say you want $200,000 in new revenue this year and your average sale is $5,000. That is 40 new customers. If you close one in four qualified leads, you need 160 qualified leads. If half of your leads are qualified, you need 320 total leads.

Then find your allowable cost per lead

If you are willing to spend 15% of revenue on customer acquisition, that is $30,000 to generate 320 leads — roughly $94 per lead. Now you have a target to judge every channel against, and a clear signal when a campaign is or is not working.

Respect the learning period

Ad platforms need conversion volume to optimize. A budget that produces fewer than about 30 conversions a month per campaign will stay noisy and expensive. It is better to fund one channel properly than three channels partially.

Budget for creative and landing pages too

• Creative fatigue is the top cause of rising costs on Meta — plan for new assets monthly
• A dedicated landing page usually beats the homepage by a wide margin
• Conversion tracking and call tracking are part of the budget, not an extra

Rules of thumb, used carefully

Established local businesses commonly invest 5–10% of revenue in marketing; businesses pushing aggressive growth often run 10–20%. Use those ranges as a sanity check on your math — never as a replacement for it.

If your numbers say the target cost per lead is impossible in your market, the answer is rarely more budget. It is usually a better offer, a better landing page, or faster follow-up.