Reputifly editorial · Reviewed 27 September 2026 · 2 min read
Build a marketing budget from margins, lead quality, sales capacity and a defined test, rather than an arbitrary percentage of revenue.
Work backwards from a customer
Begin with the contribution a new customer can realistically generate after delivery costs. Decide how much of that contribution you can afford to spend acquiring the customer. Use a first-purchase calculation unless repeat business is supported by your own records.
This is a planning model, not a promise of results. Replace every illustrative number below with your actual business data before committing spend.
An example with all assumptions visible
Suppose a service produces S$800 contribution per customer. The owner chooses an acquisition ceiling of S$200. If one in five qualified enquiries becomes a customer, the maximum cost per qualified enquiry is S$40: S$200 multiplied by 20%.
If only half of all submitted leads qualify, the corresponding ceiling per raw submission is S$20. That distinction matters: a dashboard full of cheap submissions can conceal expensive customer acquisition.
Divide the budget by job
| Budget line | What it should buy | How to assess it |
|---|---|---|
| Foundation | A working offer page, tracking and enquiry handling | Test submissions reach the right person |
| Acquisition | One defined traffic or outreach test | Qualified enquiries and customer cost |
| Content and SEO | Useful pages for real customer questions | Relevant discovery and assisted enquiries |
| Improvement | Fixes identified from actual behaviour | Fewer failed tasks or better lead quality |
Set a test boundary
Write down the total amount you can afford to risk, the service being promoted, the audience, the destination page and the review date. Avoid dividing a small test among so many channels that none produces interpretable evidence.
Allow for the sales cycle. A campaign can produce enquiries this week and sales later; compare mature lead cohorts rather than treating every unclosed enquiry as a failure.
Review the budget with sales
Every review should answer three questions: Were the leads suitable? Did the team respond and follow through? Did won work produce the expected contribution? Keep spend, platform fees and production costs visible. Increase investment only when the business can deliver the extra work.
Use the Google Ads service or SEO programme to discuss a scoped plan, rather than choosing a budget from an industry average.
