The Most Expensive Google Ads Keywords in 2026, and What a Click Costs

Most lists of the most expensive Google Ads keywords are built from bid estimates: Keyword Planner ranges or third-party tool CPCs, often years old. This one is built from what advertisers paid. We took the Google Ads accounts we manage, worked out what each business paid per click over the last year, and grouped them by industry and by keyword theme. Then we looked at the number that matters more than the click price: what a conversion cost.

The short answer: in our 2026 data, personal injury keywords are the most expensive on Google Ads, at a median of about $60 a click, and a quarter of those advertisers paid over $130. Roofing and plumbing keywords come next at about $16 to $17 a click. The typical business pays about $3. And an expensive click doesn’t always mean an expensive lead: some of the priciest industries have some of the cheapest conversions.

The most expensive Google Ads keywords in 2026

Legal keywords top the list, and it isn’t close. Personal injury and accident lawyer keywords cost the median advertiser about $60 a click. The next most expensive themes are all local home services: roofing about $17, plumbing and drains about $16. Other lawyer and attorney keywords come in around $12.50.

At the level of single keywords, the spread is wide. The median keyword across these accounts cost about $3.05 a click. One in ten cost more than $11.40, and one in a hundred more than $39.50. Only about 0.6% of keywords averaged more than $50 a click. The single most expensive keyword we saw was a legal one that averaged over $250 per click.

Those are prices that advertisers paid, and they’re lower than the eye-watering figures on most lists. Estimate-based lists often show the top-of-page bid range a keyword tool suggests, which is the price of the most competitive auctions, not the average click an account pays for over a month.

How much does a click cost on Google Ads?

For most businesses, a lot less than the headline keywords suggest. Across the businesses we manage, the median cost per click over the last year was about $3, and half of them paid between about $1.30 and $6.80. The same business can pay very different prices on different searches, though. What moves your cost per click:

• Your industry and the value of a customer, because that sets how high competitors are willing to bid.
• The keyword’s intent. “Emergency plumber near me” costs more than “how to unclog a drain”, because the first one is ready to buy.
• Location, device and time of day, which are part of the search context Google uses in every auction.
• Your ad and landing page quality, which feed into Ad Rank and so into what you pay.
• Campaign type. Shopping and Performance Max clicks usually cost less than Search clicks on high-intent keywords.

To estimate your own, Google’s Keyword Planner shows a low and high “top of page bid” range for each keyword. Treat the high end as the price of the most competitive auctions, not as your average cost. It’s an estimate: what you pay depends on your Ad Rank and on who else is in each auction.

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Average cost per click by industry

By industry, the median business we manage paid about $3 a click over the last 12 months. A quarter paid under $1.30 and a quarter paid over $6.80. Legal had the highest median of any sector at about $9.60, followed by home services at about $7.20 and healthcare at about $5.40. Retail and ecommerce had the lowest, about $1.10. Those figures include Shopping campaigns, where clicks tend to cost less.

Down at the level of specific industries, here’s what the median business paid per click and per conversion:

If you work in one of these fields, our industry pages go deeper: personal injury lawyers, insurance, plumbers, HVAC, roofers, dental practices and car dealerships.

Why some keywords cost so much

Google Ads runs an auction every time someone searches. You don’t simply pay your bid, and the highest bid doesn’t automatically win. Google ranks ads by Ad Rank, which combines your bid with the quality of your ad and landing page, the competition in that auction, the search context (location, device, time) and the expected impact of your ad assets.

What you pay is set by the ad below you. Google says you “only pay what’s minimally required to clear the Ad Rank thresholds and beat the Ad Rank of the competitor immediately below you”, which is often much less than your maximum bid. So a keyword gets expensive when many advertisers with good ads all want the same search, and each one can afford to bid high.

That’s why the top of our list looks the way it does. A single personal injury case can be worth a lot to a law firm. A new roof or a plumbing emergency is a big-ticket job, often needed now, and it’s won by whoever the homeowner calls first. When one customer is worth that much, paying $15 to $60 for a click still makes sense, and competitors bid up to the value of the customer. The flip side: better ads and landing pages raise your Ad Rank, and Google says higher quality ads can often lead to lower costs per click. Our Quality Score guide covers how.

An expensive click isn’t always an expensive lead

Cost per click is the number everyone quotes. Cost per conversion is the one that decides whether Google Ads pays. The two don’t line up neatly.

• Insurance had the second-highest click price of any industry, about $12.70, but converted about 11% of clicks, so a conversion cost about $150.
• General practice law firms paid about $9.20 a click, but at a conversion rate near 9% their median cost per conversion was about $80, close to the all-business median.
• HVAC clicks cost less, about $7.90, but only about 3% converted, so a conversion cost about $250, one of the highest figures in the data.
• Personal injury is expensive on both counts: about $14 a click and about $360 per conversion at the median firm. Firms keep bidding because one signed case can be worth far more than the cost of the leads it took to find it.

So “expensive” only means something next to what a customer is worth. A $250 HVAC lead that turns into a system replacement worth thousands is cheap. A $40 lead for a $50 product isn’t. Before you judge a keyword by its click price, work out what a conversion is worth to you, and what share of conversions become customers.

Work out what you can afford to pay per click

The maths is short. Take what a new customer is worth to you in profit, multiply by the share of leads that become customers, and multiply again by your conversion rate. That’s the most a click is worth to you.

An example with round numbers: a firm earns $5,000 profit on a new client, signs one lead in ten, and converts 5% of clicks into leads. A lead is worth $500 to it, and a click is worth $25. If its clicks cost $14, it has room to spare. If they cost $40, it needs a better landing page or a better close rate before it spends more. Run the same sum with your own numbers before you decide a keyword is too expensive.

How do you compete with expensive keywords?

You don’t have to outbid the biggest advertiser on the most expensive keyword. Smaller budgets win by being more precise. This is what we do in the accounts we run.

1. Go long-tail and specific. “Water heater repair in [your town]” is cheaper and closer to a sale than “plumber”. Longer searches with service, location and intent words usually have fewer bidders.
2. Pick match types on purpose. Exact and phrase match keep spend on the searches you’ve proven. Broad match can find more at a similar cost per conversion when it runs with Smart Bidding. Our breakdown of what each match type costs shows the trade-offs.
3. Cut the waste with negatives. Words like “free”, “jobs”, “DIY” or “salary” bring clicks that will never buy. A good negative keyword list is one of the cheapest optimisations in any account.
4. Target where and when you win. Tight location targeting and local PPC keep a local business out of auctions it can’t serve. Ad schedules keep spend in the hours someone can answer the phone.
5. Bid to a target, not a feeling. Once conversion tracking is right, Target CPA or Target ROAS bidding lets Google pay more for the searches likely to convert and less for the rest.
6. Raise your conversion rate. A landing page that converts at 8% instead of 4% halves your cost per lead at the same click price. In expensive industries, it’s one of the biggest levers you have.
7. Use the clicks you don’t pay for. For the most expensive terms, ranking organically can be worth more than the ads. See SEO vs PPC for how the two work together, and free places to advertise if the budget is tight.

In practice this works. Kenny Leigh & Associates, a family law firm in legal, the most expensive sector in our data, grew its PPC leads by 69% with us. If you’re paying more per click than the numbers above, our Google Ads management team can tell you where the money goes. Read what clients say in our reviews.

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