How Much Should a Small Business Actually Spend on Google Ads?

How much should I spend? It is the first question every small business owner asks me about Google Ads, and it is the wrong first question. There is no right budget number by itself. There is only whether the math works at a given budget. A hundred dollars a day is cheap if each dollar brings back three. It is expensive if it brings back nothing, and so is ten dollars a day.

So let us do the math the way I do it on calls, with plain numbers you can swap for your own.

The four numbers you need

• Cost per click. What one click costs in your market. Local services often run from a few dollars to thirty or more for competitive work like legal or emergency trades.
• Conversion rate. The share of clicks that become a call or form lead. A decent landing page turns roughly one in ten clicks into a lead. A weak page might manage one in fifty.
• Close rate. The share of leads that become paying customers. For many local services, one in three or four is realistic.
• Customer value. What one new customer is worth, ideally including repeat work and referrals, not just the first job.

A worked example

Say a click costs $10, and your page converts one click in ten into a lead. Ten clicks cost $100 and produce one lead, so your cost per lead is $100. Say you close one lead in three, so a customer costs you about $300 in ads. Now the only question that matters: is a new customer worth more than $300 to your business over the time they stay with you? For a roofer, an HVAC company, or a dentist, almost certainly yes, and the ads work. For a $60 one-time service with no repeat business, no budget fixes that. The ads lose at $300 a day and they lose at $30 a day, just slower.

I go deeper on this in cost per customer math for small businesses, including how to think about repeat value honestly without fooling yourself.

When the math cannot work, and what to fix first

Sometimes the answer from the math is no, not yet. That is not a dead end. It usually points at the cheapest fix, in this order:

• Conversion rate first. Doubling your page's conversion rate halves your cost per lead without spending a cent more on ads. A page that matches the ad, loads fast, and makes calling easy is the highest leverage fix there is.
• Click cost second. Tight keywords, correct location settings, and a real negative list cut the junk clicks that inflate your average cost.
• Close rate third. Answering faster and following up once more turns leads you already paid for into customers.
• Budget last. Only raise the budget once a smaller one is producing customers at a cost your numbers can carry.

Most of the accounts I see failing are failing on the first two, which is why my checklist on why your Google Ads are not working starts with tracking, targeting, and the landing page rather than the budget line.

A sane starting budget

If the math works on paper, start where you can gather data without sweating every click. A practical floor is enough for about ten clicks a day in your market. At $10 a click, that is roughly $3,000 a month, which is real money, so if that number makes you flinch, the honest move is a smaller test in one service and one area, run tightly, rather than a thin budget spread across everything you do. Give it two to four weeks of clean data, then judge it by cost per customer, not by feelings about individual days.

If you want to run your own numbers with someone, my Google Ads help sessions are $99 for the first hour, and the free 15-minute Marketing Check is enough time to do this math for your business on a napkin.

That is how I like to work anyway, live on a screen share with your real numbers on screen, not averages from a blog post. We plug in your click costs and your close rate, and by the end you know exactly what budget makes sense, or exactly what to fix before spending another dollar.