ADS STUDIO / BUDGET PLANNING
How Much Should a Small Business Spend on Google Ads?
A useful Google Ads budget depends on likely click costs, conversion rates, customer margins and how much data you need for a meaningful test.
A useful Google Ads budget depends on likely click costs, conversion rates, customer margins and how much data you need for a meaningful test.
Build a test budget from assumptions
Estimate a plausible range for cost per click, the number of clicks needed to obtain an enquiry and your follow-up capacity. For example, £3 clicks and a 5% tracked enquiry rate imply about £60 in media spend per enquiry. Treat this only as a scenario; actual costs and rates vary substantially.
Practical next step: Note your business-specific assumptions and discuss them before setting an advertising budget.
This guide is for UK business owners considering or improving paid search. The examples explain practical decisions rather than predicting results for a particular account.
Start with business economics
Estimate gross profit per customer, enquiry-to-customer conversion and the maximum acquisition cost you can afford.
Estimate the traffic you can buy
Use keyword planning tools to understand possible CPC ranges. These estimates are not guarantees and can change during an auction.
Check how many clicks you need
If you expect a small percentage of visitors to enquire, the campaign must have enough budget to produce a useful sample. Make the assumption explicit rather than pretending it is certain.
Budget for management separately
Allow for the platform spend and for campaign management, setup or landing-page work. Ads Studio management starts from a proposed £190 per month.
Agree a decision point
Track the first period carefully. Continue, change or pause based on genuine lead quality and commercial performance.
Build a budget from business economics
Estimate how many customers you can fulfil, the gross profit per job and what share of enquiries turn into customers. Then use current keyword estimates to model possible click volumes. Set a review date and decide in advance what evidence would justify continuing, changing or pausing the test.
Practical next steps
- Write down one commercial goal and what a qualified enquiry means.
- Check the search terms, business economics and tracking information relevant to this topic.
- Record a baseline and review enough genuine data before changing the budget.
- Keep your Google Ads account accessible and management fees clearly documented.
Common questions
Is £5 a day enough for Google Ads?
Set a test budget you can sustain long enough to learn, based on expected enquiry costs and your margins. Extremely small budgets can produce too few observations for confident decisions.
Can I change my budget after launch?
Estimate affordable cost per customer, conversion rate from lead to sale, and realistic enquiry volume. Review actual qualified enquiries before increasing spend.
Before you make a decision
Use this short decision check alongside your own account and commercial information:
- Confirm the action you want a customer to take and how you will measure it.
- Check the assumptions behind any worked example against real business costs.
- Separate Google advertising spend from management charges and other costs.
- Review customer outcomes and lead quality, not simply clicks or impressions.
Published by Ads Studio, a trading name of Xcel Rank Ltd (company no. 17104488). Prepared to help business owners understand Google Ads management. It is general information; advertising platforms and policies change.
Useful official resources: Google Ads Help and Google’s advertiser guide.