Why set a marketing budget
Without a budget, marketing spending tends to happen in reaction: a salesperson calls, a competitor advertises, a slow month arrives and money is thrown at the problem. A budget turns this into a decision. It is not a promise that spending will bring sales. It is a limit that keeps you from overspending and a baseline you can compare results against.
A marketing budget is a part of your wider business budget and should respect your cash flow. Never spend money on marketing that you need for essentials such as rent, supplies or payroll, and never borrow beyond your means in the hope that marketing will bring in enough to repay it. Outcomes are uncertain.
Ways to decide how much
There is no single correct method. Common approaches include:
Percentage of revenue
Some businesses set aside a fixed share of sales. Typical ranges are often quoted, but they vary by industry and stage, and you should treat any figure as a rough reference. As a hypothetical example, if expected annual revenue is $200,000 and you choose 5%, the budget is $10,000 a year, or about $833 a month ($10,000 divided by 12 is 833.33). The weakness is that it ties spending to past or expected sales, so a business with low sales gets little to spend just when it may need to attract customers.
Goal-based
Start from what you want to achieve and work backward. Hypothetically, you want 12 new customers a month. If about one in five people who inquire become customers, you need roughly 60 inquiries (12 times 5). If a channel typically produces an inquiry for about $10, that is about $600 a month (60 times $10). This approach is more logical but depends on estimates you may not have yet. Early on, treat the assumptions as guesses and update them with real numbers.
What you can afford
A new business with little cash may simply decide on an amount it can lose without harm, such as a small fixed monthly sum plus a number of hours. This is sensible if you are uncertain, because it limits risk while you learn. The drawback is that it may be too little to give any channel a fair test.
Competitor or industry comparison
You can look at what similar businesses seem to spend, but you rarely have reliable figures, and their situation differs from yours. Use this only as a loose sanity check.
Allocate across channels
Once you have a total, split it. A cautious approach:
- Put most of the money into one or two channels that you think best reach your target market.
- Keep a small portion, for example around a tenth, for testing something new.
- Include non-obvious costs: design, printing, photography, software subscriptions, event fees and your own time.
- Prefer low-cost basics first, such as a clear website, local search listings, customer reviews and email, before paid reach.
Remember that some effective marketing costs mostly time, such as asking for referrals, speaking with local groups or sharing useful content. Count the hours too, even if you do not pay for them.
Track what it returns
Spending is only half the story. For each channel, record:
- Money and hours spent
- Leads or inquiries it generated
- Customers it produced
- Revenue and profit from those customers
A simple measure is cost per customer: spending divided by new customers. Hypothetically, if $600 produced 12 customers, each cost $50 to win ($600 divided by 12). Whether that is acceptable depends on profit per customer. If an average customer brings $30 of profit on a first purchase, you lose money unless they come back. If they typically buy several times, the picture changes. Estimating that lifetime value takes care, so base it on real repeat-purchase data and not hopes.
Ask how you know a customer came from a channel. A simple question at the sale, such as “How did you hear about us?”, is imperfect but useful. Customers often answer incompletely, so use the answers as a rough guide.
Review and adjust
Check your numbers monthly, but avoid reacting to a single week. Many channels need several months before the pattern is clear. A reasonable cycle:
- Set the budget and the aims for a quarter.
- Run the plan and record the results.
- Compare channels by cost per customer and by overall effect on profit.
- Move money away from clear underperformers and toward steady performers.
- Keep some flexibility for seasonal changes.
Our guides on key performance indicators and on weekly and monthly business reviews describe ways to keep this routine light.
Common mistakes
- Cutting marketing to zero in a slow period and then having no pipeline.
- Spending on everything in small amounts, so nothing gets a proper test.
- Ignoring existing customers, whose repeat business is often the cheapest.
- Confusing activity with results. Likes and impressions are not sales.
- Increasing spend before the basics work. Advertising a confusing offer or website mostly pays for confusion.
A good marketing budget is modest, written down, tested and revised. It will not guarantee growth, but it makes your decisions visible and your mistakes cheaper.