How Much Should a Business Spend on Marketing? A Way to Work It Out Properly
The usual answer is a percentage of revenue. It is a reasonable sanity check and a poor way to decide. There is a better method that uses numbers you already have.
By Ads Ninza · Published 4 September 2026 · 7 min read
The percentage rule, and its limits
The most common answer to this question is a percentage of revenue. Guidance often quoted for small businesses sits around 7 to 8 per cent of revenue, with growth-stage companies spending more and mature businesses in slow categories spending less. Surveys of larger companies land in a similar range.
As a sanity check this is useful. If you are spending 1 per cent of revenue on marketing and wondering why growth is slow, the benchmark tells you something. If you are spending 25 per cent and still not growing, it tells you something else.
As a way to decide, it fails. It says nothing about your margin, your customer value, how fast you can deliver, or whether the channel you are about to fund works for your category. Two businesses with the same revenue can have completely different correct budgets.
The method that actually works: work backwards
1. What is a customer worth? Average first order or deal value, multiplied by gross margin. If customers come back, use a conservative twelve-month value, not a lifetime fantasy.
2. What can you afford to pay to get one? Decide how much of that margin you are willing to spend on acquisition. For a business that needs to be profitable on the first sale, this might be a third of first-order margin. For one with strong repeat purchase, it can be most or all of it.
3. How many enquiries does one customer take? Your close rate. If you close one in five qualified enquiries, the most you can pay per qualified enquiry is a fifth of your acceptable acquisition cost.
4. How many new customers can you handle? Delivery capacity, sales team time, stock. There is no point funding more demand than you can serve.
5. Multiply. Customers you want each month, times the acquisition cost you can afford, gives the maximum media spend that makes sense. Then compare it with what the channel actually costs in your market.
This takes an afternoon with numbers you already have, and it produces a budget you can defend, because every part of it traces back to how the business makes money.
A worked example in five currencies
Take a service business with an average job of 1,00,000 rupees, a 40 per cent gross margin and a one-in-four close rate on qualified enquiries. It is willing to spend half of first-job margin on acquisition.
Margin per job: 40,000 rupees. Acceptable acquisition cost: 20,000 rupees. Maximum cost per qualified enquiry: 5,000 rupees. If it wants eight new jobs a month, it needs 32 qualified enquiries, which means media spend can go up to 1,60,000 rupees a month and still meet the target.
The same structure works anywhere. A US business with a $4,000 average job at the same margin and close rate can pay up to $400 per qualified enquiry. A UK firm at £3,000 per job, up to £300. A Dubai business at AED 15,000, up to AED 1,500. A Canadian firm at CAD 5,000, up to CAD 500.
Now compare against reality. If typical cost per qualified enquiry in your category and market is well below your maximum, you have room to grow and should be spending more. If it is above your maximum, more spend will lose money, and the constraint is your offer, price, close rate or margin, not your budget.
Budget for the system, not just the media
Media spend is the visible part. A working acquisition system also needs:
Landing pages built for each offer. Sending paid traffic to a home page is the most common reason budgets underperform.
Tracking that records real outcomes, including which enquiries became customers. Without it you cannot tell which part of the budget is working.
Creative. Especially on Meta, where fresh creative is what keeps costs stable.
Management. Whether in-house time, a freelancer or an agency, someone needs to be reading search terms, cutting waste and making decisions weekly.
A realistic split for a small business starting out is roughly half on media and half on everything that makes the media work. As spend grows, the media share rises because setup costs do not grow with it.
Where to start if you have never spent before
Start at a level that produces enough data within a month to make decisions. For lead generation, that usually means enough budget for a few dozen enquiries a month in one channel. Spreading a small budget across four channels produces four sets of numbers too thin to read.
Choose the channel that matches intent. If people already search for what you sell, start with Google Ads. If you need to create demand or your product is visual, Meta is usually the better first test. We compared the two in a separate article.
Minimum sensible budgets vary a lot by market. Clicks in the USA and UK cost several times what they do in India for the same category, and UAE real estate and finance auctions are among the most expensive anywhere. Canada sits between the US and UK in most categories, with Toronto and Vancouver at the top.
Frequently asked questions
What percentage of revenue should a small business spend on marketing?
Guidance commonly quoted for small businesses is around 7 to 8 per cent of revenue, with startups and fast-growing companies spending more. Treat it as a sanity check. The better method is to work back from what a customer is worth, what you can afford to pay for one and how many you can serve.
How much should a startup spend on marketing?
Startups often spend a higher share of revenue because revenue is small and they are buying learning as well as customers. Set a budget large enough to produce readable data in one channel within a month, and a fixed period to test it, rather than a percentage of a very small number.
How much should I spend on Google Ads per month?
Enough to get a meaningful number of conversions each month in the campaigns you run, which depends on your cost per click and conversion rate. Work out your maximum affordable cost per qualified enquiry first, then check whether the auction in your market can deliver it at that price.
How much should I spend on Facebook and Instagram ads?
Enough for the ad set to exit learning and give you a stable read, which usually means budget for a meaningful number of conversions per week per ad set. Too little spread across too many ad sets is the most common reason Meta tests are inconclusive.
Is marketing spend an expense or an investment?
Accounting treats it as an expense. Commercially, spend that brings in customers who pay back their acquisition cost within a known period behaves like an investment, and you can scale it on that basis. Spend you cannot measure behaves like an expense and should be treated with more caution.
Should I spend more on marketing in a slow period?
If your unit economics work and competitors are pulling back, auction prices often fall and you can buy customers more cheaply. If the slow period comes from weak demand for your offer itself, more spend will not fix it. The numbers in this article help you tell the difference.
Does the budget include agency fees?
In our method, yes. Budget for the whole system: media, management, landing pages, tracking and creative. Early on, media is often about half of the total. The share rises as spend grows, because setup costs do not grow with it.
How is marketing budget different in India compared with the USA or UK?
Clicks usually cost several times more in the USA and UK for the same category, so minimum sensible budgets are higher. Customer values are often higher too. The method is the same everywhere: compare your maximum affordable acquisition cost against what the local auction actually charges.
What if the numbers say I cannot afford to advertise?
Then the constraint is your price, margin, offer or close rate, and fixing one of those is worth more than any campaign. We tell prospects this plainly on discovery calls when it is true, because spending into an unworkable model loses money for both of us.
How do we start with Ads Ninza?
Apply through the form on this page. On the paid discovery call, INR 499 in India and $9 elsewhere, we work through this budget method with your numbers. Services start at INR 35,000 per month in India and $500 per month outside India.