How Much Should a Small Business Spend on Marketing?

The Percentage Tells You What You Can Afford, Not What You Need

The percentage-of-revenue rule survives because it is easy and because it stops a business from spending money it does not have. The U.S. Small Business Administration has long suggested around 7 to 8 percent of gross revenue for businesses with under $5 million in sales and net margins of roughly 10 to 12 percent. Most published guidance lands between 5 and 10 percent.

Treat that as a ceiling check, not a plan. Two businesses with the same revenue can need very different budgets. A dental practice whose patients stay for years can afford to pay far more to win one than a café whose average customer spends twelve dollars. A business with a full calendar needs less marketing than one with empty slots on Tuesdays. The percentage knows none of this, so the number has to come from somewhere else and then be checked against the percentage.

Work Backward From What a Customer Is Worth

Four figures produce a budget you can defend. You probably know three of them already.

1. First-year gross profit per new customer. Revenue from a typical new customer in their first twelve months, minus the direct cost of serving them.
2. The share you are willing to spend to win one. Often a quarter to a third of that first-year profit for a business that keeps customers; less for one-time purchases.
3. New customers needed per month. To fill capacity, replace customers you lose, or reach a growth target.
4. Your revenue. For the final check against the percentage.

An illustration: a residential services company earns about $1,800 from a typical new customer in year one, at a 50 percent gross margin, so $900 of gross profit. It decides to spend up to a third of that, $300, to win each one, and needs ten new customers a month. That is a budget of about $3,000 a month. At $600,000 of annual revenue, $36,000 a year is 6 percent, inside the usual range, so the number is both justified and affordable. If the arithmetic had produced 15 percent, the business would need to raise prices, improve how many enquiries become customers, or accept slower growth, rather than borrow to market.

Split the Budget Into Three Kinds of Money

A monthly marketing number hides three very different kinds of spending. Separating them prevents the most common mistake, which is paying for the third before the first is done.

Foundations: paid once, then maintained

A website that turns visitors into enquiries, a complete Google Business Profile, tracking that shows where each lead came from, a simple customer list or CRM, and a routine for asking for reviews. Every other channel sends people through these, so weaknesses here multiply every dollar spent later. Ranges for the biggest item are in what a small-business website costs.

Steady building: monthly, slow to start, lasting

Search visibility, answers that AI assistants can cite, and content that keeps working after it is published. It takes months to show results and keeps producing them after you stop adding to it. See what small-business SEO costs and what AEO costs for the usual ranges.

Switchable spend: on when you need it, off when you do not

Paid search and paid social. Results start within days and stop when the spending stops. This is the most flexible money in the budget, which is exactly why it should be used to fill specific gaps, such as a slow season or a new service, rather than as the default.

The order matters more than the split. In the first year, foundations may take most of the budget. After that, a reasonable pattern is most of the ongoing money in steady building and a controlled amount in switchable spend, adjusted each quarter against cost per customer.

How the Right Share Changes With the Stage of the Business

• Year one or two, or a new market. Often well above 10 percent of revenue, because revenue is small and foundations have to be built. Plan for this as a launch cost rather than a permanent rate.
• Established and growing. Usually inside the 5 to 10 percent range, with the backward calculation deciding where.
• Established, full, mostly referrals. Sometimes 2 to 5 percent, spent mainly on keeping the foundations current and the review flow steady. Cutting to zero tends to show up a year later, when referrals slow and nothing else is in place.

Your Own Hours Are a Line Item

Many owners report a small marketing budget because the biggest cost, their own time, is not written down. Eight hours a month writing posts, chasing a freelancer, replying to reviews and adjusting an ad account is a real cost. Put an hourly value on it, either what you would pay someone or what that hour earns elsewhere in the business, and add it to the total.

Two things usually follow. Some tasks turn out to be worth paying for because your hour is expensive. Others stay with you because only you can do them well, such as answering customers’ real questions on camera or in writing. If you are weighing outside help against a hire, an agency versus a marketing employee runs the full employee cost.

Keep a Test Reserve, and Decide in Advance When to Stop

Hold back around 10 percent of the ongoing budget for one test at a time: a new channel, a new offer, a new kind of content. Before it starts, write down how long it runs and what result would justify continuing. Paid tests can be judged in weeks; search and content need six months or more.

The written rule is the point. Without it, tests that are not working tend to continue because stopping feels like admitting a mistake, and tests that are working get starved because nobody decided to move money into them.

Where Small-Business Budgets Leak

• Buying traffic for a site that does not convert. More visitors to a page that loses them only makes the loss bigger; see when a website gets traffic but no leads.
• Spreading thin. Five channels each funded below the level where they can work produce five disappointing reports.
• Long contracts with no exit. Twelve-month commitments before any results are seen remove your ability to move money.
• Judging by attention, not customers. Reach and followers are easy to buy and hard to bank.
• Unused subscriptions. Tools signed up for during a busy month and never cancelled.

The fix for most of these is measurement: knowing which channel produced each customer. If you cannot answer that today, it is the first thing to spend on.

What Changed the Arithmetic in 2026

The foundation layer has become much cheaper and faster to build, which shifts how a fixed budget should be divided. At Social Media Strategy HQ we build websites, tracking and follow-up with Claude Code, so work that used to absorb most of a first-year budget now takes a smaller share and a few weeks, leaving more for the steady building that compounds. At the same time, more buyers ask AI assistants for recommendations before they search, which makes being citable part of the steady-building line rather than an extra. Our AI website building, SEO services and AEO services are built around that division.

Six Questions That Set Your Number

1. What is a new customer worth in gross profit in their first year?
2. How many new customers do I need each month, and why that number?
3. Are my foundations done: a site that converts, a complete profile, tracking, reviews?
4. How many hours a month am I spending myself, and what are they worth?
5. Which one channel will I fund properly before adding another?
6. What result, by what date, would make me stop or increase each line?

If you already pay an agency, the third and sixth questions are the ones to put to them. How to tell if your marketing agency is working goes further, and if paid social is on your list, what Facebook ads management costs shows the minimum spend that makes it work.