Google Ads for a small business: the budget floor, the one campaign worth running, and the leak that wastes most of it

Google Ads works for a small business when three conditions hold at once: a budget above the learning floor, which for most local service categories means $1,000 to $1,500 a month on a single campaign; somebody who answers the phone inside a minute during business hours; and a management cost that does not swallow the spend. Below roughly $750 a month the auction returns too little data to improve anything, and a 20 percent fee on top of a $400 minimum means more than half the money never reaches the auction. Expect $2 to $12 a click in ordinary local service categories, $35 to $180 a lead, and a clear verdict within ninety days. These figures are my own working estimates from accounts at this size, not survey data, and your category can sit well outside them.

The floor, which is the first thing to settle

Paid search is a measurement system before it is an advertising channel, and measurement needs volume. One campaign needs something like thirty to fifty clicks a week before the search terms report tells you anything you can act on, and something like fifteen to thirty conversions a month before you can compare one ad or landing page against another with any confidence.

Run that backwards against your own click cost. At $4 a click, forty clicks a week is about $700 a month and the maths works. At $25 a click, which is normal for legal, insurance, water damage and anything involving an emergency, forty clicks a week is $4,300 a month and a $1,000 budget buys you ten clicks a week, which is noise. The useful conclusion is not that paid search is unaffordable. It is that at a small budget in an expensive category you have to shrink the target until the clicks you can afford are the right clicks: one service, one town, exact and phrase match keywords, business hours only.

The leak nobody puts in the budget

The expensive mistake at this size has nothing to do with the account. You pay $12 for a click, the person calls, and the call goes to voicemail because the owner is under a sink. That call is gone, and the money with it. In a small business the conversion system is a person, and the person is doing the work.

Fix that before you raise a budget. The options cost less than a week of ad spend. An answering service that takes a name, a number and the job in forty seconds runs $80 to $350 a month at small business call volumes. A shared inbox with a rule that any form submission gets a reply inside fifteen minutes costs nothing. Scheduling ads to run only when somebody can pick up costs nothing and usually improves the account more than any bidding change. If you take one thing from this page, take that.

The one campaign worth running first

Start with a single search campaign built around the service that makes you the most money, not the service you get asked about most. Inside it:

• Exact and phrase match keywords only, ten to twenty five of them, all describing the job rather than the industry.
• A location radius you can actually serve, set to presence rather than interest, so you are not paying for somebody three states away researching your city.
• Negative keywords from day one: free, cheap, DIY, how to, salary, jobs, courses, and the names of services you do not sell.
• One landing page per campaign, with the phone number as text at the top, the service area named, the price or price range if you can publish one, and a form of three fields.
• Conversion tracking on calls and forms before the first dollar is spent. An account without it is a donation.

Resist the second and third campaign until the first is profitable. Most underperforming small business accounts I see are not badly built, they are spread across six campaigns on a budget that can only feed one.

What it costs, including the part people forget

Line	My working estimate
Click cost, ordinary local services such as cleaning, landscaping, pet care, repairs	$2 to $12
Click cost, trades and home services with urgency	$8 to $30
Click cost, legal, insurance, restoration, medical	$25 to $90
Cost per lead across those categories	$35 to $180
Management, percentage model	12 to 20 percent of spend, often with a monthly minimum
Management, flat fee for a single campaign account	$400 to $1,200 a month
One time build and handover, so you run it yourself	$1,200 to $3,500

The percentage model is the one to think about at small scale. On $5,000 of spend a 15 percent fee is reasonable work for reasonable money. On $1,000 of spend the same percentage is $150, which buys nobody's attention, so the agency charges a $500 minimum instead and half your budget is now overhead. At that level a one time build with training, then an hour of your own time a week, beats a retainer. Above $3,000 a month the retainer starts earning its fee back.

The ninety day decision

Give the account three months and then make a decision on numbers you collected rather than on a feeling. Keep four of them: spend, leads, closed jobs, and revenue from those jobs. Leads are not the answer, because paid search produces tyre kickers alongside buyers, and a channel at $60 a lead that closes one in ten is worse than one at $140 a lead that closes one in three.

If revenue from closed paid search jobs is above three times the spend, raise the budget by a quarter and repeat. If it is between one and three times, the account is fixable and the usual culprits are match types, the landing page and response time. If it is below one, stop the campaign and put the money into your local profile, your reviews and the pages that earn clicks without a bid.

Google Ads at small business scale: the doubts worth settling first

What is the real minimum budget for Google Ads?

There is no platform minimum, so the honest answer is a function of your click cost. Divide $700 by your category click cost to see how many clicks a month you can buy, and if that is under a hundred, narrow the targeting until the number works or spend the money elsewhere.

Should I run it myself or pay somebody?

Under about $1,500 a month in spend, pay once for a correct build and run it yourself with an hour a week. Over $3,000, a specialist usually finds more than the fee. In between, decide on whether you will genuinely look at the search terms report every week, because that is the task that makes the difference.

Why am I getting clicks but no calls?

Three causes, in order of how often I find them: broad match keywords buying irrelevant searches, a landing page that does not name your town or your price, and calls arriving when nobody is free to answer. Check the search terms report first, then listen to a week of recorded calls.

Is Performance Max right for a small business?

It can work once you have conversion data worth optimising against, and it is a poor first campaign because it gives you little control and little visibility while you are learning your own numbers. Start with search, get ninety days of conversions, then test it with a separate budget.

Should I bid on my own business name?

If a competitor is bidding on it, yes, because brand clicks are cheap and losing your own name is expensive. If nobody is, the spend is mostly buying clicks you would have had for free, so put it into the service campaign instead and check again quarterly.

Ads or local search first, if I can only do one?

Your Google Business Profile and your reviews, every time. They cost nothing per click, they feed the map results that sit above the ads for local intent, and a thin profile makes every ad click more expensive because the person checks you afterwards and finds nothing.

The budget line with no auction attached to it

Everything above is about buying a place on a results page, where the price is set by whoever else wants the same click. There is a second place a small business can appear now, and it has no bidding in it at all. When somebody types a description of their problem into an assistant and asks who could fix it nearby, the reply names a handful of businesses and cites where it got them, usually review sites, local directories and a few local pages. No advertiser can outbid you there. What decides it is whether the facts about your business are consistent and findable in the places those answers are built from. The same morning you review the ad account, read the answer you cannot bid on. AI Knows Us makes it readable, question by question, with the sources underneath.