TL;DR: Most small businesses should plan on $500 to $2,000 per month in Google Ads spend to start, with management on top. The right number depends on your margins, your average customer value, and how competitive your category is locally. In this post, we break down how to set a realistic budget, what drives the cost up or down in 2026, and how we use these same rules at Kayser Marketing to plan campaigns for Peterborough service businesses.

The Honest Answer to How Much You Should Spend

If you've been Googling some version of how much should a small business spend on Google Ads, you've probably seen everything from $300/month all the way up to $10,000/month. That range is technically correct, and also useless if you're trying to plan next quarter's marketing budget.

Here is the version that actually helps a small business owner make a decision.

For most local service businesses in Peterborough and the Kawarthas, a realistic starting budget looks like this:

$500 to $1,000 per month for a single service, single city, low-to-medium competition
$1,000 to $2,000 per month for multiple services or higher-ticket categories like trades, healthcare, and legal
$2,000 to $5,000+ per month for competitive categories, multiple locations, or businesses scaling past their current capacity

That is ad spend, paid directly to Google. Management is a separate line item, usually billed monthly by the agency or freelancer running the account.

The biggest mistake I see is people picking a number out of the air, running ads for a month, and concluding "Google Ads don’t work" when really, the budget was never high enough to generate the data Google needs to optimize.

What 7 Years of Running Ads Has Taught Me About Small Business Budgets

Numbers and frameworks are useful, but I also want to share what I've actually seen work after running campaigns for small business clients for the last seven years.

The honest pattern looks like this:

Most small businesses do really well in the $500 to $1,000/month range. This is the sweet spot for a single-location service business in Peterborough and similarly sized markets. It's enough budget for Google to collect meaningful data, enough volume to draw real conclusions, and enough leads to move the needle on bookings.
Some businesses start under $500/month and still do really well. I've launched campaigns at $10 to $15 per day that produced strong, profitable lead flow from week one. One client even started at $5 per day, where they were comfortable enough to see that the ads were working before scaling. When results start coming in, the smart move is almost always to scale; the campaign has earned the right to a bigger budget.
In the Peterborough region, a budget over $1,000/month puts you in top competitor range. That's the threshold where you're consistently showing up against the most aggressive advertisers in your category locally. For most Peterborough service businesses, that level of spend is where compounding results really start to show up.
Higher budgets, more competitive industries, and bigger cities all change the math. If you're in a category like legal, finance, hospitality, or specialized healthcare, or you're advertising in Toronto or Ottawa, competitor CPCs and budgets are simply higher. You either need to commit to a bigger budget to compete, or you need to adjust your expectations for what a smaller budget can realistically deliver. Cities with a population of a million or more simply have more competition for ads in your category.

The takeaway from seven years of doing this: budget honestly for the market you're actually in. A $600/month budget in Peterborough can build a real business; the same $600/month in downtown Toronto might barely move the needle. Knowing the difference upfront is what separates campaigns that work from campaigns that frustrate the owner.

What Actually Drives Your Google Ads Budget

Your budget is a math problem, not a guessing game.

Four things drive it.

1. Your Average Customer Value

This is the single most important number, and most small business owners don't have it written down anywhere.

If a new massage client at a wellness studio averages $300 in their first 90 days, you can comfortably spend a meaningful percentage of that to acquire them. If a roofing customer averages $8,000 per project, your budget can be much more aggressive.

A quick way to think about it:

Calculate your average revenue per new customer
Subtract your direct costs to deliver the service
That gross margin is what you have to work with for marketing

Most service businesses can sustainably spend 10 to 25 percent of gross margin on customer acquisition without hurting profitability.

2. Your Cost Per Click in Your Category

Different industries pay wildly different amounts per click. In Canada in 2026, rough averages look like:

Local wellness, fitness, and beauty: $1 to $4 per click
Home services and trades: $5 to $15 per click
Healthcare and clinics: $3 to $8 per click
Legal, financial, and B2B services: $10 to $50+ per click

If your average CPC is $8 and you need 100 clicks per month to generate enough leads, your math just told you the budget: $800/month minimum, before any buffer.

3. Your Conversion Rate

Clicks don't pay the bills, bookings do. A well-built campaign for a Peterborough service business usually converts somewhere between 5 and 15 percent of clicks into a lead, depending on how good the landing page is.

This is where most small business campaigns leak money. Great ads sending traffic to a generic homepage will burn through any budget you set, no matter how big.

4. How Competitive Your Local Market Is

Peterborough is a tight market with real competition in trades, healthcare, and wellness, but it's still nowhere near as expensive as Toronto or Ottawa. That's good news for local businesses; the same $1,500/month budget goes a lot further here than it would in a major metro.

The flip side is that a handful of well-funded competitors in your category can absolutely move the needle on your costs. If three other clinics or contractors all start advertising on the same keywords you're targeting, your CPCs go up.

A Simple Framework for Setting Your Budget

Here is the exact framework I walk Kayser Marketing clients through when we're planning their first 90 days on Google Ads.

Step 1: Define a winning customer.

Write down what one new customer is worth to you in their first 90 days. Use real numbers from your books, not a guess.

Step 2: Decide what you'd pay to get one.

If a new customer is worth $500 in gross margin, you can probably afford to spend $50 to $125 to acquire them and still come out ahead, especially when you factor in repeat visits and referrals.

Step 3: Estimate your cost per lead.

Cost per lead is usually 2 to 5 times your cost per click, depending on your conversion rate. If your CPC is $5 and your landing page converts at 10 percent, you're looking at roughly $50 per lead.

Step 4: Multiply by the number of leads you actually need.

If you need 20 new leads per month to hit your booking goals, and each lead costs $50, your budget is $1,000/month in ad spend.

Step 5: Add a 20 percent buffer for the learning phase.

Google's algorithm needs data to optimize. The first 30 to 60 days of any new campaign will be less efficient than month three onward. Budget for that.

That math gives you a defensible number you can actually plan around, instead of a guess.

Common Budget Mistakes That Burn Cash

A few patterns show up over and over again with new accounts.

Going too small. A $100/month budget in a $10 CPC category gets you 10 clicks. That isn't enough data for Google to learn from, and it isn't enough volume for you to learn anything either. Know a rough estimate of how much each click is going to cost you before beginning.
Setting it and forgetting it. Budgets need weekly attention in the first 60 days. Bids, negatives, and bidding strategies all shift as the account collects data.
Ignoring negative keywords. Without an aggressive negative keyword list, you'll pay for clicks from job seekers, students, free-version searchers, and people in cities you don't serve.
Sending paid traffic to a generic homepage. Your landing page is half the campaign. A great ad with a weak page is just an expensive bounce.
Quitting before 90 days. Most accounts hit their stride somewhere between day 60 and day 90, once Google has enough conversion data to optimize against. The good news is, if you’ve started a new Google Ads account you can often get a promotional ad credit to stretch your budget significantly after the first 60 days. This will really help you gain a lot of traction.

How to Tell If Your Budget Is Actually Working

Clicks and impressions feel productive, but they don't pay your bills.

The only metrics that matter for a small business are:

Cost per lead (CPL): how much you're paying for a phone call, form fill, or booking
Cost per acquired customer (CAC): how much you're paying for a customer who actually books and pays
Return on ad spend (ROAS): revenue generated for every dollar of ad spend
Lifetime value to CAC ratio: how much a customer is worth over time, compared to what it cost to acquire them

If your CAC is lower than your gross margin per new customer, your campaign is working. If it isn't, the campaign needs structural changes, not just a bigger budget.

This is also where GA4 and proper conversion tracking earn their keep. Without them, you're guessing and thinking that the ads feel like they're working, but you actually don’t know, is not a budgeting strategy.

Mini Case Study: How a $1,500/Month Budget Doubled Bookings at Flow Spa

Flow Spa is a wellness studio in Peterborough, and one of the accounts we run at Kayser Marketing. When we started managing their Google Ads, we built the budget from the bottom up using exactly the framework above.

Average new massage client value over 90 days was high enough to justify a meaningful CAC
CPCs in the local wellness category were running $1.50 to $3
A tightly-built landing page converted around 12 percent of clicks into bookings
That math pointed to roughly $1,200 - $1,500/month as the right starting budget

Eight months later:

16 to 20 net-new massage bookings per week from paid search
Total massage appointments doubled compared to the pre-campaign baseline
A predictable, plannable cost per booking that makes monthly budgeting easy

The budget wasn't aggressive by big-city standards, but because it was built on real numbers and paired with proper tracking, it produced compounding results for the clinic.

What's Different About Google Ads Budgets in 2026

A few things have shifted in the last 12 months that affect how much you should be planning to spend:

AI Overviews are now an ad surface. That has driven up impressions for some queries and changed click-through patterns; budgets need a slightly bigger buffer in the first 30 days while the new patterns settle in.
AI Max for Search expands matching. It can find new demand, and it can also burn budget on irrelevant queries without a strong negative keyword list.
Local Services Ads have expanded categories. For eligible trades, LSAs run on a pay-per-lead model (roughly $20 to $80 per lead in Canada), which usually delivers better lead economics than traditional Search ads.
Performance Max needs guardrails. PMax can work, but for local service businesses it requires tight brand exclusions and audience signals to stay profitable.
Measurement consolidation. GA4 + enhanced conversions + offline conversion imports is the 2026 baseline. Without them, you can't tell which dollars are working.

The takeaway: 2026 budgets need to be a little more deliberate than they were in 2022. Auto-pilot campaigns waste more money than they used to.

Quick Reference: Budget by Business Type

A simple cheat sheet for Peterborough small businesses:

Solo wellness practitioner or studio: $500 to $1,000/month
Single-location clinic (RMT, chiro, physio, dental): $1,000 to $2,000/month
Local trades (plumbing, HVAC, electrical, roofing): $1,500 to $3,000/month, plus LSAs
Multi-service spa or wellness centre: $1,500 to $3,000/month
Professional services (legal, financial, accounting): $2,000 to $5,000/month
Multi-location or regional service business: $3,000 to $10,000+/month

These are starting ranges, not ceilings. Once a campaign is profitable, the right move is usually to scale spend up, not hold the line at the original budget.

Ready to Build a Budget That Actually Works?

A Google Ads budget should be a math problem you solve, not a number you hope works out. With the right inputs (customer value, CPCs, conversion rate, lead volume) you can plan a campaign that pays for itself and then some.

Kayser Marketing helps Peterborough and Kawarthas small businesses plan, launch, and scale Google Ads campaigns built on real numbers, not guesses. If you'd like a free audit of your current account, or help setting a realistic budget for your first campaign, get in touch.

Frequently Asked Questions

What is the minimum budget for Google Ads to actually work?

For most local service businesses, $500/month is a reasonable floor. Below that, you usually don't generate enough click and conversion data for Google's algorithm to optimize, and you don't get enough leads to draw real conclusions.

Is $1,000 a month enough for Google Ads?

For a single-service local business in a low-to-medium competition category in Peterborough, yes. $1,000/month is often enough to drive a steady stream of leads, especially when paired with a strong landing page and proper conversion tracking.

How much do agencies charge to manage Google Ads?

Most reputable Google Ads managers charge either a flat monthly retainer (typically $500 to $2,000+) or a percentage of ad spend (usually 10 to 20 percent). Very small accounts almost always do better on a flat retainer model.

Should I spend more on Google Ads or Facebook Ads?

Google Ads captures people who are already searching for what you sell, which makes it ideal for high-intent local services. Facebook and Instagram are better for awareness and brand-building. Most small businesses do best with a primary channel (usually Google for service businesses) and a smaller budget on the secondary one.

How long before I see results from a Google Ads budget?

Clicks and leads can start within days. Stable, optimized performance usually takes 60 to 90 days as the campaign collects conversion data and the algorithm settles in.

Can I run Google Ads myself, or do I need an agency?

You can absolutely run your own ads, especially if you have time to learn the platform. Most small business owners who try, however, find that the time cost (and the cost of early mistakes) ends up being higher than the management fee they were trying to avoid. If you're going to take care of it on your own, take the time to study up on best practices on YouTube first. There are a lot of great videos that can help you get started.

How Much Should a Small Business Spend on Google Ads in 2026?