Are Google Ads Worth It?
The Google Ads invoice gets paid every month, and the report that comes with it usually looks healthy, with more clicks, a lower cost per click and a respectable count of conversions. Then someone asks how many of this quarter’s new customers came from Google, and nobody can say with confidence, because no one has followed those clicks through to signed business, which leaves whoever approves the budget with a plain question: are Google Ads worth it?
Google Ads are worth it when winning a customer through them costs less than that customer is worth to you in gross profit, so judge them on cost per customer rather than clicks, cost per click or Google’s conversion count.
If your own numbers say they aren’t worth it, look past the ads before you cancel them, because most of what decides your cost per customer happens after the click, and the sections below show how to check which it is.
How Do You Know If Your Google Ads Are Paying Back?
Divide what you spent on Google Ads by the customers it won, counted in your own sales records, and compare the result with your ceiling: the most you can afford to spend to win one customer. Below the ceiling, the ads are paying back; above it, something in the chain is costing you more than the customer is worth.
You can work out your ceiling with the cost-ceiling calculator on the Channel Selection page, which also turns it into the most you can pay for a lead and a click, and then check your account in this order:
- Set your ceiling, from what a typical customer spends with you each year, your gross margin, how long customers stay and how soon your cash flow needs the cost earned back.
- Pick a review period at least as long as your sales cycle, so the leads Google brought in have had time to become customers.
- Count the customers who signed from Google in your CRM or sales records, and ask every new customer how they heard about you, rather than relying on the conversions Google reports.
- Check what Google is counting as a conversion, because if job applicants and vendor pitches count, the platform learns to find more of them, which is the first thing a PPC audit checks.
- Divide spend by customers won, and put that cost per customer beside your ceiling.
Step 3 matters most because Google grades its own results generously, so we treat its report as a second opinion beside a source of truth you control, usually the CRM, which the Channel Selection page shows how to set up.
ExampleWhat Google claimed against what the contractor signed
A commercial HVAC contractor doing about $40M a year, the example we follow through every step on this site, sells maintenance agreements to property management firms. An average firm is worth $13,680 in gross profit a year, and because its customers stay about seven years and its cash flow can carry a one-year payback, it chose to spend up to one year’s gross profit to win one, so that is its ceiling.
- Agreements Google Ads claimed in one quarter
- 13
- Agreements the CRM’s tracking showed
- 11
- After asking every new customer how they heard about it
- 9
- Google spend that quarter
- $18,000
- Cost per agreement, against a $13,680 ceiling
- $2,000
Why Are My Google Ads Not Converting?
When Google Ads bring visitors who don’t become customers, the cause is usually after the click: ads that send people to the home page, follow-up that arrives a day or two late, or targeting that brings in the wrong buyer. Fix those before you judge the ads, because each one raises your cost per customer without changing anything Google controls.
ExampleThe same $18,000 a quarter, before and after the page and follow-up changed
Before the quarter above, the contractor spent the same $18,000 a quarter on Google search for about 1,800 visits. Its ads sent property managers to the home page, which ended in a “Contact us” form, and the office replied by email a day or two later, so about 1% became leads.
It then built a page around one offer, a free five-year HVAC replacement forecast for one building, and had a service manager call every request the same day, with the ads, keywords and budget untouched.
- Spend per quarter
- $18,000 before and after
- Leads
- 18 before, 72 after
- Agreements signed
- 2 before, 9 after
- Ceiling per agreement
- $13,680
- Cost per agreement
- $9,000 before, $2,000 after
Google was already under the ceiling, but two agreements a quarter made it look like a failure
That’s why so many “Google Ads don’t work” verdicts turn out to be verdicts on the page and the follow-up, and the Prospect-to-Lead Conversion page walks through how to check yours.
How Much Should I Spend on Google Ads?
Spend enough to win customers below your ceiling at a volume that tells you something in one review period, and raise it only after your cost per customer has proven itself. The right budget comes from your customer’s value and your conversion rates, so it can’t be read off an industry average.
To find the budget, work backwards from the ceiling: multiply it by the share of leads that become customers to get the most you can pay for a lead, then by the share of visitors who become leads to get the most you can pay for a click. If your buyers’ searches cost more per click than that, you need better conversion or a different channel.
ExampleThe contractor’s ceiling, worked back to a click
- Ceiling per new property management firm
- $13,680
- Leads that sign
- About 1 in 9
- Most it can pay per lead
- About $1,520
- Visitors who become leads
- 1%
- Most it can pay per visit
- About $15.20
Any search that costs less than that per click, and brings property managers, can pay back at those rates.
The budget also has to be large enough to read, since a budget that can win only one or two customers in a review period can’t tell a good channel from a bad one when a single deal swings the cost per customer. Once the numbers hold, raise spend in measured steps and watch what each added customer costs, which is what the Marketing Action Plan page covers.
How Long Does It Take for Google Ads to Start Working?
Ads can bring clicks soon after they go live, but judging whether they’re worth it takes at least one full sales cycle and enough signed customers to separate a pattern from luck, so a company whose buyers sign in a week can judge sooner than one whose buyers take a quarter.
With the accounts we manage, we treat the first three months as setup and learning: building the landing page, getting conversion tracking to count qualified leads instead of every form fill, and finding which searches bring real buyers. Google’s bidding learns from whatever you count as a conversion, so the account gets better at finding customers once it’s counting the right thing.
While you wait, change one thing at a time and keep the original running beside it, because when several things change at once you can’t tell which one helped, and treat an early month with few sales as normal for a long sales cycle rather than as a verdict.
Are Google Ads Worth It for Small Business?
They often are, when customers search for what the business sells in its area and someone calls each lead back the same day, because search reaches people who already know they need it. They usually aren’t when nobody searches for what you sell, or when the customers it brings are worth less than they cost to win.
At any company size, Google Ads are usually a poor fit:
- When nobody searches for what you sell, because buyers don’t yet know they have the problem or the category is new, so channels that reach people before they start looking work better.
- When you can’t win a customer below your ceiling, which happens when customers are worth little and competitors bid up the clicks.
- When your best buyers rarely search, as with the contractor’s largest property management firms, which LinkedIn reached by job title and which signed the agreements covering the most buildings.
- When the steps after the click aren’t ready, since paid traffic leaks without a page built for the buyer and fast follow-up, so fix those first.
If you run a smaller business, start with the searches closest to a purchase in your service area, one page built for that buyer, and a rule that every lead hears from a person the same day. If you lead marketing at a larger company, rank Google against your other channels on cost per customer and customer value, since the cheapest channel per customer can still bring in the least valuable customers.
Work Out Your Ceiling Before You Change the Budget
Before you raise, cut or cancel your Google Ads, find out what a customer is worth to you and the most you can afford to spend to win one. Put your own numbers into the cost-ceiling calculator on the Channel Selection page, then compare your cost per customer from Google against the result.