How Much Should a Small Business Spend on Google Ads in 2026?
If you are a small business owner thinking about running Google Ads for the first time, the biggest question on your mind is probably: how much should I actually spend?
The honest answer is that it depends on your industry, your goals, and how competitive your keywords are. But that is not very helpful when you need a real number to put into your marketing plan.
So in this guide, we will give you realistic figures, a simple formula to calculate your own budget, and practical advice to make sure every pound you spend on Google Ads works as hard as possible.
The Quick Answer: Typical Google Ads Budgets for Small Businesses
Based on current data and what we see across the small businesses we work with at Komodo Media, here are the ranges most small businesses fall into in 2026:
| Business Stage | Recommended Monthly Budget | Daily Equivalent |
|---|---|---|
| Testing / brand new campaigns | £500 – £1,000 | £15 – £35 |
| Local small business | £1,000 – £2,500 | £35 – £80 |
| Growth-focused SME | £2,500 – £5,000 | £80 – £165 |
| Established / competitive industry | £5,000 – £10,000+ | £165 – £330+ |
For most small businesses just getting started, £1,000 to £2,500 per month is the sweet spot. This gives you enough data to learn what works without burning through cash too quickly.
Is £10 a Day Enough for Google Ads?
A lot of people ask this, and the answer is: it depends on your industry, but often it is not enough to get meaningful results.
At £10 per day (roughly £300 per month), you might get between 3 and 10 clicks depending on your keyword costs. In competitive industries like legal services or finance, that could mean just 1 or 2 clicks per day. That is simply not enough data for Google’s algorithm to optimise your campaigns, and it is not enough volume for you to draw any useful conclusions.
However, if you are in a very niche local market with low competition, £10 a day can work as a starting test. Just do not expect to scale from it quickly.
How to Calculate Your Ideal Google Ads Budget: A Simple Formula
Rather than picking a number out of thin air, use this straightforward formula to work backwards from your business goals:
Step 1: Define Your Monthly Revenue Goal from Ads
How much new revenue do you want Google Ads to generate each month? Let’s say £5,000.
Step 2: Know Your Average Sale Value
What is the average value of one new customer or sale? Let’s say £500.
Step 3: Calculate How Many Conversions You Need
£5,000 revenue goal / £500 per sale = 10 conversions needed
Step 4: Estimate Your Conversion Rate
The average Google Ads landing page conversion rate across industries is around 3% to 5%. Let’s use 4%.
Step 5: Calculate How Many Clicks You Need
10 conversions / 0.04 conversion rate = 250 clicks needed
Step 6: Multiply by Your Average Cost Per Click (CPC)
If your average CPC is £2.50, then: 250 clicks x £2.50 = £625 per month
That gives you a data-driven starting budget. Here it is as a formula:
Monthly Budget = (Revenue Goal / Average Sale Value) / Conversion Rate x Average CPC
Average Cost Per Click by Industry in 2026
Your cost per click varies hugely depending on your industry. Here are some approximate UK averages to help you plan:
| Industry | Average CPC (UK) | Suggested Monthly Starting Budget |
|---|---|---|
| Local services (plumbers, cleaners, etc.) | £1.50 – £4.00 | £750 – £1,500 |
| E-commerce / retail | £0.50 – £2.00 | £500 – £2,000 |
| Health and wellness | £1.50 – £5.00 | £1,000 – £2,500 |
| Legal services | £5.00 – £15.00 | £2,500 – £5,000 |
| Finance and insurance | £4.00 – £12.00 | £2,000 – £5,000 |
| Real estate | £1.50 – £4.50 | £1,000 – £3,000 |
| B2B / SaaS | £3.00 – £8.00 | £1,500 – £4,000 |
| Hospitality and restaurants | £0.50 – £2.50 | £500 – £1,500 |
Note: These are approximate figures for 2026. Actual costs can vary based on location, competition, keyword specificity, and ad quality.
The 70/20/10 Rule for Marketing Budgets
You might have heard of the 70/20/10 rule for allocating your marketing budget. Here is how it works and how it applies to Google Ads:
- 70% of your budget goes to proven strategies and campaigns that are already working.
- 20% goes to new strategies that show promise but are not yet fully tested.
- 10% goes to experimental campaigns and ideas you want to test.
If you are spending £2,000 a month on Google Ads, this might look like:
- £1,400 on your best-performing campaigns and keywords
- £400 on new keyword groups or audience segments that look promising
- £200 on testing new ad formats, landing pages, or completely new keywords
This approach keeps your budget productive while still allowing room to discover new opportunities.
What Happens If You Spend Too Little?
One of the most common mistakes we see is businesses setting a daily budget so low that they never collect enough data to optimise. Here is what typically goes wrong:
- Not enough clicks to test: Google needs data to learn which ads work best. With only a handful of clicks per day, the learning phase drags on for weeks or months.
- Inconsistent ad delivery: Very low budgets can mean your ads only show for part of the day, missing peak hours when your customers are searching.
- Poor conclusions: If you only get 50 clicks in a month, you cannot reliably tell whether your campaign is working or not. You need statistical significance.
- Wasted money: Ironically, spending too little often wastes money because you spend it without ever getting enough data to make it profitable.
We generally recommend a minimum of £500 per month for even the smallest test campaigns, and ideally £1,000+ to get actionable insights within the first 30 to 60 days.
What Happens If You Spend Too Much Too Fast?
On the other end of the spectrum, jumping straight to a large budget without proper setup is equally dangerous:
- You may burn through thousands before your tracking is even working correctly.
- Broad or poorly chosen keywords can eat up budget on irrelevant clicks.
- Without optimised landing pages, high traffic just means a high bounce rate and low conversions.
Our advice: Start conservatively, get the data, then scale what works. It is better to spend £1,000 wisely than £5,000 blindly.
A Practical 90-Day Budget Plan for New Google Ads Campaigns
If you are launching Google Ads for the first time, here is a phased approach we recommend to our clients:
Month 1: Testing Phase (£750 – £1,500)
- Set up conversion tracking properly (this is non-negotiable).
- Launch 2 to 3 tightly themed ad groups with specific keywords.
- Run at least 2 ad variations per group for A/B testing.
- Focus on exact match and phrase match keywords to control spend.
- Review search terms weekly and add negative keywords aggressively.
Month 2: Optimisation Phase (£1,000 – £2,000)
- Pause underperforming keywords and ads.
- Increase bids on keywords that are converting.
- Test new ad copy based on Month 1 learnings.
- Start optimising landing pages for better conversion rates.
- Slightly increase budget on winning campaigns.
Month 3: Scaling Phase (£1,500 – £3,000)
- Scale budget on proven campaigns by 20-30%.
- Expand keyword lists with related terms.
- Consider adding remarketing campaigns.
- Begin testing new campaign types (e.g., Performance Max or Display).
- Set clear ROAS (Return on Ad Spend) targets going forward.
How to Know If Your Google Ads Budget Is Working
Spending money is the easy part. Knowing whether it is actually working requires tracking the right metrics. Here are the key numbers to watch:
| Metric | What It Tells You | Good Benchmark |
|---|---|---|
| Click-Through Rate (CTR) | Are people interested in your ads? | 3% – 6% for Search |
| Conversion Rate | Are clicks turning into leads/sales? | 3% – 5% average |
| Cost Per Conversion | How much does each lead/sale cost you? | Varies by industry |
| ROAS (Return on Ad Spend) | How much revenue per £1 spent on ads? | 3:1 or higher |
| Quality Score | How relevant are your ads and landing pages? | 7/10 or higher |
If your cost per conversion is lower than your profit per sale, your campaign is working. If not, it is time to optimise or adjust your budget allocation.
5 Tips to Get More From Your Google Ads Budget
Regardless of whether you are spending £500 or £5,000 per month, these tips will help you stretch every pound further:
- Use negative keywords from day one. This prevents your ads from showing for irrelevant searches and saves a surprising amount of money.
- Focus on high-intent keywords. Someone searching “buy running shoes online” is much closer to purchasing than someone searching “best running shoes 2026”. Prioritise keywords where the searcher is ready to act.
- Improve your landing pages. A better landing page means a higher conversion rate, which means more results from the same budget. Never send ad traffic to your homepage.
- Schedule your ads wisely. If your customers mainly search during business hours, do not waste budget showing ads at 3am. Use ad scheduling to focus spend on your best-performing times.
- Review and adjust weekly. Google Ads is not a “set it and forget it” platform. Weekly reviews and small adjustments compound into major savings over time.
Should You Manage Google Ads Yourself or Hire an Agency?
This is a question we get asked all the time. Here is an honest breakdown:
Managing It Yourself
- Pros: No management fees, full control, good for very small budgets.
- Cons: Steep learning curve, risk of wasted spend, time-consuming to do properly.
Hiring an Agency (like Komodo Media)
- Pros: Expert setup and optimisation, faster results, ongoing management saves you time, access to advanced tools and strategies.
- Cons: Monthly management fee (typically 10-20% of ad spend or a fixed fee).
As a general rule, if your monthly ad spend is under £500, it may make sense to learn the basics and manage it yourself. Once you are spending £1,000 or more per month, the cost of professional management is usually more than offset by better results and less wasted spend.
At Komodo Media, we help small businesses set up, manage, and scale their Google Ads campaigns with a focus on real business results. If you want to talk about what a realistic budget looks like for your specific situation, get in touch with our team.
Frequently Asked Questions
How much do Google Ads cost for a small business per month?
Most small businesses spend between £1,000 and £2,500 per month on Google Ads. However, budgets can range from £500 for very small local campaigns to £5,000+ for competitive industries. The right amount depends on your industry, target keywords, and revenue goals.
Is £100 a day good for Google Ads?
£100 per day (approximately £3,000 per month) is a solid budget for most small businesses. It gives Google enough data to optimise effectively and allows you to target multiple keyword groups. For many industries, this budget can generate a strong return on investment when managed well.
Is £10 a day enough for Google Ads?
£10 a day can work for very niche local businesses with low-competition keywords, but it is generally too low to generate meaningful results. At this budget level, you may only get 2 to 5 clicks per day, which makes it difficult to test and optimise your campaigns. We recommend at least £20 to £35 per day as a minimum starting point.
What is the minimum budget for Google Ads in 2026?
There is no official minimum set by Google. Technically, you can spend as little as £1 per day. However, for practical purposes, we recommend a minimum of £500 per month (roughly £15-£17 per day) to gather enough data and start seeing results.
How do I know if my Google Ads budget is too low?
Signs your budget is too low include: your ads stop showing by midday due to budget limits, you are getting fewer than 10 clicks per day, your campaigns are stuck in “learning” mode for more than two weeks, or you do not have enough conversion data to make optimisation decisions.
What is a good return on ad spend (ROAS) for Google Ads?
A ROAS of 3:1 or higher is generally considered good for most small businesses. This means you earn £3 in revenue for every £1 spent on ads. However, what counts as “good” depends on your profit margins. A business with high margins might be profitable at 2:1, while a low-margin business may need 5:1 or more.
Should I start with Search Ads or Performance Max?
For most small businesses, we recommend starting with Search Ads. They give you more control over which keywords trigger your ads and are easier to understand and optimise. Once you have solid conversion data, you can test Performance Max campaigns to expand your reach across Google’s entire network.