There is no universal minimum Google Ads budget.
A £10-a-day campaign can be perfectly useful in one market and nearly pointless in another. The reason is simple: Google Ads is an auction. Cost per click changes with search term, geography, competition, audience and campaign quality.
The right budget should therefore be worked backwards from click cost, expected conversion rate and customer value.
Google allows you to set an average daily budget. For most campaigns, Google says the monthly spending limit is 30.4 times that daily amount, although individual days can spend more or less. A £20 average daily budget therefore corresponds to a monthly spending limit of about £608 for most campaigns.
That arithmetic tells you the maximum spend. It does not tell you whether £608 is enough to learn anything useful.
Step 1: separate media spend from management fees
Media spend is the money paid to Google. Management fees are what you pay an agency or specialist to plan, build, track and optimise the campaign.
If your total budget is £1,500 and the management fee is £400, the media budget is £1,100. That distinction should be explicit in every proposal.
Step 2: estimate realistic click volume
Suppose the relevant clicks in your market are roughly £4 each. A £1,000 media budget could buy about 250 clicks before normal variation.
If clicks are £12, the same budget buys about 83 clicks.
Those figures are worked examples, not UK benchmarks. Your agency should use live Keyword Planner and account data, not a generic article, to estimate your market.
Step 3: apply an expected conversion range
If 5% of 250 clicks become genuine leads, that is about 12 or 13 leads. If the conversion rate is 2%, it is five leads.
Now the website matters. A strong campaign can still perform badly if the landing page is slow, unclear, poorly matched to the search term or difficult to use on mobile.
Step 4: connect leads to sales value
A lead is not revenue. If one in four qualified leads becomes a customer and each new customer produces £1,500 in gross profit, you can calculate a sensible acquisition ceiling.
That is a better budgeting process than asking Google how much it recommends you spend.
Worked example: local service business
Imagine a local service company with a narrow radius and relatively affordable search clicks. It might start with £500-£1,000 per month in media spend, plus management, if that produces enough traffic to test keywords and landing pages.
If the market is tiny, more budget will not create more demand. If the search terms are expensive, the same budget may be too small.
Worked example: London clinic or professional service
A London clinic, legal service or specialist professional business may face higher click costs and stronger competition. A media budget of £1,000-£3,000+ per month may be more realistic for a meaningful test, depending on the service.
Again, this is a planning range, not a benchmark. A niche treatment with low search volume may need less. A valuable legal or financial keyword can require much more.
The location setting matters too. A London-wide campaign can burn budget quickly if the real customer radius is much smaller.
Worked example: higher-value national service
A national B2B or specialist service with customers worth tens of thousands of pounds may tolerate a much higher cost per click and cost per lead. The budget might be several thousand pounds a month because one sale can justify it.
The challenge becomes lead quality. If broad search terms produce irrelevant enquiries, the account can look busy while wasting money.
Is the budget large enough to generate meaningful data?
This is an important question that many small campaigns ignore.
If the account receives only a handful of clicks each week, it can take a long time to determine which search terms, ads and landing pages work. That does not mean small budgets are impossible. It means you may need to target very narrowly.
A useful budget should allow enough traffic to make decisions within a reasonable period.
Track forms and phone calls properly
Google Ads conversion tracking can measure valuable actions such as leads, purchases and phone calls. If your business wins work by phone, call conversion tracking is particularly important.
Do not count every possible interaction as a primary conversion. A click on the contact page may be useful behaviour, but it is not equivalent to a completed booking.
Search terms and negative keywords matter
The keyword you bid on and the actual phrase a user types are not always identical. Regularly reviewing search terms allows the advertiser to find irrelevant traffic and add negative keywords.
For example, a premium service may need to exclude searches for “free”, “jobs”, “course”, “DIY” or unrelated locations. The exact negatives depend on the business.
Landing pages can be the budget problem.
When clicks come in, but enquiries don’t, businesses often blame Google Ads immediately. Sometimes the campaign is wrong. Sometimes the website is the weak point.
Check whether the landing page clearly answers the search, states the service and location, gives enough trust information, makes price expectations clear where appropriate, works on mobile and offers an obvious next step.
Google’s Core Web Vitals guidance recommends good loading, interactivity and visual stability. Speed is not the only conversion factor, but a slow or unstable page adds friction.
What if clicks are coming in but no leads are arriving?
Work through the chain in order:
1. Are the search terms relevant?
2. Are the right locations being targeted?
3. Are conversions configured correctly?
4. Does the page match the ad promise?
5. Are forms working?
6. Are phone calls being answered?
7. Are the leads genuinely poor quality, or are they not being followed up well?
Do not keep increasing budget until you know where the break occurs.
How much should management cost?
Management pricing varies by complexity. A small local account can require relatively few hours once stable.
A multi-location or high-spend account may need constant search-term analysis, bid work, creative testing, landing pages, conversion tracking and reporting.
Some agencies charge a fixed fee, some a percentage of ad spend and some a hybrid. The model matters less than transparency and work quality.
When to increase budget
Increase budget when the campaign is producing profitable or strategically valuable conversions, the business has capacity for more demand, and additional search volume is worth buying.
When not to increase it
Do not increase budget because the dashboard says “limited by budget” unless the underlying traffic is good.
If irrelevant terms are consuming the current budget, more money simply buys more irrelevant traffic.
Budget efficiency is not only about spending more. Our Clark Jennings Google Ads project describes how landing pages and improved Quality Scores contributed to a lower average cost per click.
Request a marketing review
If you are unsure whether your Google Ads budget is too low, too high or simply pointed at the wrong searches, request a marketing review from Spiders & Milk. We can review budget, tracking, search terms, landing pages and lead quality together.
Frequently asked questions
What is a good daily Google Ads budget in the UK?
There is no universal figure. A useful daily budget depends on your market’s CPC, expected conversion rate, geography, and customer value.
Can Google spend more than my daily budget?
For most campaigns, Google can spend up to twice the average daily budget on an individual day, while keeping within the monthly spending limit based on 30.4 times the average daily budget.
Should I include agency fees in my Google Ads budget?
Yes, when considering total marketing cost, but keep management fees separate from media spend so performance and costs remain transparent.
Why am I getting Google Ads clicks but no leads?
Possible causes include irrelevant search terms, poor location targeting, weak landing pages, broken tracking, non-functional forms, unanswered calls, or an offer that doesn’t match what users expect.
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