"How much do I have to invest in Facebook Ads?" It's the same old question, and the answer you hear most — "it depends" — doesn't help. Let's turn that "it depends" into a method so you decide your budget with logic, not guesswork.
Why there's no magic number
Anyone who tells you "invest $X a month" without knowing your business is guessing. The right budget depends on three things that are yours:
- What a customer is worth to you (average sale × how many times they buy from you).
- Your margin (how much of that sale you keep).
- Your sales goal (how many new customers you want).
Without those numbers, any budget is a shot in the dark.
The backward math (the right way)
Most people think "I've got $500, I'll put it into ads." Working backward works better:
- How many new customers do you want this month? Say 10.
- How much does it cost to get one? (cost per customer). If you don't know yet, you find out by testing.
- Multiply. If getting one customer costs you $50 and you want 10, your base budget is ~$500.
That way the budget comes from your goal, not a hunch. And you know what to expect in return.
Start small, scale what works
Don't dump it all in at once. The initial phase isn't for selling a lot — it's for learning:
- Which creative stops the scroll.
- Which audience responds.
- How much a lead costs you.
With that data, you raise the budget only on what has already proven a return. Pouring a lot of money into a campaign with no data is the fastest way to burn it. I wrote about when to scale and when to kill a campaign.
The metric that rules: ROAS, not likes
The classic mistake: measuring by likes and reach. That doesn't pay the rent. What matters:
- Cost per lead: how much it costs you to get someone to raise their hand.
- ROAS: how much every dollar invested returns, in trackable sales.
If every dollar returns more than a dollar, you're on the right track. To see it clearly you need a dashboard that connects spend with real sales — no guessing. I broke it down in why your campaign has a good CTR but zero sales.
Budget ≠ management cost
An important clarification: the ad budget (what goes to Meta) is separate from the management work (strategy, creatives, optimization). They're the fuel and the pilot. If you mix them up, you'll never know whether the problem is the budget or the execution.
Without a system behind it, you burn budget
The most important point: ads fill the funnel, but if a lead comes in and nobody follows up, it's lost. Before you scale spend, make sure you have a CRM and automatic follow-up. Ads bring them in; the system closes them. That's why you need a CRM before running ads.
Next step
If you want a real budget for your business — based on what a customer is worth to you, not a generic number — book 15 minutes and we'll calculate it together, with the follow-up system included so not a single lead gets lost.