How Much Should a Local Business Spend on Google Ads?

The Real Answer: It Depends, But Here's How to Think About It

"How much should I spend on Google Ads?" is the most common question we hear from local business owners. And honestly, the answer isn't a dollar amount. It's a framework. The right budget for a personal injury attorney in downtown Seattle looks nothing like the right budget for a house cleaning company in Kirkland. Different industries, different competition levels, different customer values, different numbers.

But here's what we can tell you: there is a minimum threshold below which you're wasting money, and there is a formula for calculating a budget that actually makes sense for your business. We've managed Google Ads campaigns for over 100 local businesses across the Puget Sound, and the patterns are remarkably consistent once you understand the variables.

The three things that determine your budget are your industry (which controls your cost per click), your goals (how many leads you need per month), and your competition (how many other businesses are bidding on the same keywords in your area). Get those three inputs right and the math does the rest.

The biggest mistake I see is business owners picking a budget based on what they're comfortable spending rather than what the market requires. A plumber who says "I want to spend $500 a month" might be under the threshold where Google can even deliver meaningful data. You're better off spending $1,500 for three months than $500 for nine months.

Brock Olsen

Paid Media Strategist, Integrity Marketing

Minimum Viable Budget by Industry

Every industry has a floor, the minimum monthly ad spend required to generate enough clicks and data to actually optimize a campaign and produce leads. Below this floor, you're not getting enough traffic for Google's algorithm to learn, for your account manager to optimize, or for you to draw any meaningful conclusions about what's working.

Here's what we recommend as minimum monthly ad spend (not including management fees) based on what we see across our client base in the Seattle metro area:

Understanding Cost Per Click by Industry

Cost per click is the single most important variable in your budget equation. It's what Google charges you every time someone clicks your ad. And it varies wildly by industry because Google Ads is an auction. The more advertisers competing for a keyword, and the more valuable that customer is, the higher the cost per click.

Here's a visual breakdown of average cost per click by industry in the Seattle metro:

Legal services dominate the high end because a single personal injury case can be worth $50,000 or more. That makes attorneys willing to pay $80 or $100 per click. Restaurants sit at the other end because the average customer value is much lower. Your industry's cost per click is largely out of your control. What you can control is your conversion rate, which directly impacts your cost per lead.

I always tell clients to stop fixating on cost per click and start thinking about cost per lead. I've managed campaigns where the CPC was $45 but the cost per lead was $90 because the landing page converted at 50 percent. And I've seen campaigns with $8 clicks producing $120 leads because the landing page was terrible. The click cost is just one piece of the equation.

Brock Olsen

Paid Media Strategist, Integrity Marketing

How to Calculate Your Google Ads Budget

Here's the formula we use with every new client. It's simple, but it works because it starts with your business goal and works backward to a budget number.

Let's walk through a real example. Say you're a remodeling contractor in Bellevue. You want 20 new leads per month from Google Ads.

Step 1: Estimate your cost per click

For remodeling contractors in the Seattle metro, the average CPC runs $20 to $35. Let's use $25 as a midpoint.

Step 2: Estimate your conversion rate

A well-built landing page for a home services company typically converts between 8 and 15 percent of clicks into leads (phone calls or form submissions). If your site isn't optimized for conversions, expect closer to 3 to 5 percent. Let's assume you're working with us and we've built a proper landing page, so we'll use 10 percent.

Step 3: Calculate cost per lead

$25 CPC / 10% conversion rate = $250 cost per lead

Step 4: Multiply by your target leads

20 leads x $250 per lead = $5,000 per month in ad spend

That's a real number you can plan around. Now you can ask yourself: if each remodeling lead is worth $15,000 to $40,000 in revenue and I close 30 percent of my leads, am I making money? Let's check. 20 leads x 30% close rate = 6 new jobs. At an average project value of $25,000, that's $150,000 in revenue from $5,000 in ad spend. That's a 30:1 return. The math works.

We always start with the math. If the numbers don't work on paper, they won't work in practice. But I've found that for most local service businesses, the unit economics of Google Ads are incredibly favorable because the customer values are high relative to the cost per lead. The challenge is usually patience and optimization, not the fundamental math.

Brock Olsen

Paid Media Strategist, Integrity Marketing, Integrity Marketing

When to Increase Your Budget

Spending more on Google Ads isn't always the answer. But there are clear signals that tell you it's time to scale up.

Your campaigns are profitable and you can handle more work. This is the most obvious signal. If you're spending $2,000 a month, generating 15 leads, closing 5 of them, and making $30,000 in revenue, and you have capacity for more jobs, increase your budget. You've proven the economics work. More fuel means more output.

Your impression share is low. Google reports what percentage of available impressions your ads are capturing. If you're only showing up for 40 percent of relevant searches because your budget runs out by 2pm every day, you're leaving leads on the table. Increasing budget captures that missed demand.

You're entering a new season or launching a new service. Roofers should increase budget heading into storm season. HVAC companies should ramp up before summer and winter. If you're launching a new service line, temporary budget increases help you test the market quickly.

Your SEO data shows high-value keywords you're not ranking for organically. If organic rankings haven't caught up on certain high-value terms, increasing your ad budget to cover those specific keywords fills the gap. As organic rankings improve, you can shift that budget elsewhere. This is part of the SEO and Google Ads synergy we talk about a lot.

When to Decrease or Pause Your Budget

There are also clear signals that you should pull back.

You can't handle the lead volume. If calls are going unanswered, forms are sitting in your inbox for three days, and your schedule is booked out six weeks, you don't have a marketing problem. You have an operations problem. Pause or reduce spend until you can actually service the demand. Every unanswered lead is wasted money.

Your cost per lead is climbing and conversions are dropping. This happens when competition intensifies, when your ads get stale, or when seasonal demand shifts. Before reducing budget, talk to your account manager about refreshing ad copy, tightening keyword targeting, or improving your landing pages. If those optimizations don't bring costs back in line, it may be time to reduce spend temporarily.

Organic rankings have replaced paid keywords. One of the best reasons to reduce ad spend is because your SEO investment is paying off. If you now rank number one or two organically for terms you were previously paying for, you can reduce or eliminate ad spend on those keywords and let organic traffic carry the load.

Your industry has a clear off-season. A landscaper doesn't need the same January budget as July budget. Seasonal businesses should adjust spend month by month based on actual demand curves rather than running a flat budget year-round.

Common Budget Mistakes We See

After managing hundreds of local campaigns, these are the mistakes that cost businesses the most money.

1. Setting it and forgetting it. Google Ads is not a set-and-forget platform. Campaigns need weekly optimization: adjusting bids, pausing underperforming keywords, testing new ad copy, refining audiences. A campaign that's not actively managed will bleed money. This is the single biggest reason businesses say "Google Ads didn't work for me." It worked. Nobody was driving.

2. Spending too little to get meaningful data. If your industry's average CPC is $25 and you're spending $500 a month, you're getting 20 clicks. That's not enough traffic for Google to optimize, for you to test anything, or for your account manager to draw conclusions. You'll burn through three months of budget learning nothing. Spend enough to generate at least 100 to 200 clicks per month.

3. Not tracking conversions properly. If you don't have call tracking, form tracking, and conversion tracking set up correctly, you're flying blind. You have no idea which keywords produce leads and which produce junk clicks. We've audited accounts spending $5,000 a month with zero conversion tracking. That's $5,000 a month with no way to know what's working.

4. Sending traffic to your homepage. Your homepage is designed for everyone. Your ads should point to specific landing pages designed for one service, one audience, one action. A plumber bidding on "water heater repair Seattle" should send that click to a water heater repair page, not their homepage with twelve different services. This alone can cut your cost per lead in half.

5. Ignoring negative keywords. Without negative keywords, your ads show up for irrelevant searches. We've seen HVAC companies paying for clicks on "HVAC technician jobs" and attorneys paying for clicks on "free legal advice." A proper negative keyword list can save 15 to 30 percent of your budget from being wasted on searches that will never convert.

6. Comparing your budget to a competitor's without context. Your competitor spending $10,000 a month doesn't mean you need to. They might be targeting a wider area, more services, or running inefficient campaigns. Your budget should be driven by your own math: your cost per lead, your close rate, and your customer value. Not someone else's spending habits.

When we onboard a new client, the first thing I do is audit their conversion tracking. About half the time, it's broken or missing entirely. You can't optimize what you can't measure. Before spending a single dollar more on ads, make sure every call, every form, and every chat is being tracked back to the keyword that generated it.

Brock Olsen

Paid Media Strategist, Integrity Marketing

Brock Olsen

Paid Media Strategist, Integrity Marketing, Integrity Marketing

Matt has spent over a decade helping local businesses grow through SEO, paid advertising, and web design. He founded Integrity Marketing with a simple goal: deliver honest, effective marketing that actually works.