How Much Should a Small Business Actually Spend on Marketing?

There is no magic percentage, and anyone who opens with “businesses should spend 7 to 10% of revenue on marketing” is reciting a rule of thumb, not doing math on your business. The honest answer: your marketing budget should be derived from what a customer is worth to you, what it costs you to acquire one, and how much growth your operation can actually absorb.

That derivation takes about an hour with a calculator. This article walks through it, then addresses the percentage question properly, because benchmarks do have a use once you understand what they are hiding.

Why is “percent of revenue” a weak starting point?

Because it treats marketing as a tax on the past instead of an investment priced against returns. Percent-of-revenue rules make budgets shrink exactly when you need demand most and say nothing about whether the spending works.

Consider two Vaughan businesses each doing $500,000 a year. A landscaping company with $80 average jobs and thin margins, and a renovation contractor whose average project is $45,000 with healthy gross profit. A flat “spend 8%” prescription gives both $40,000, which may be reckless for one and timid for the other. The percentage knows nothing about job value, close rates, capacity, or how competitive their keywords are.

Institutions do publish ranges, and they are fine as sanity checks. The Business Development Bank of Canada, for example, discusses common small business ranges in the low single digits of revenue, varying by industry and goals (BDC). Treat numbers like that as the population average of businesses mostly guessing, not as your answer.

What numbers should you calculate first?

Three numbers turn the budget from a guess into a decision: customer value, allowable acquisition cost, and capacity. If you compute nothing else this year, compute these.

1. Gross profit per customer. Not revenue. For a one-time job: average job size times gross margin. The $45,000 renovation at 35% margin contributes about $15,750. For repeat business (realtors get referrals and repeat clients; clinics get recurring visits), estimate a conservative first-year value and note the long tail exists.

2. Allowable acquisition cost. Decide what share of that gross profit you will pay to acquire a customer. Aggressive growth might spend 20 to 30% of first-customer gross profit; a capacity-limited shop might cap it at 10%. The contractor above deciding 15% can pay roughly $2,300 per won customer and feel fine.

3. The funnel math backwards. If one in three estimates becomes a job, and one in four qualified leads becomes an estimate, then one customer needs roughly twelve qualified leads. At $2,300 allowable per customer, you can pay about $190 per qualified lead. Suddenly every channel conversation is concrete: a lead source producing $60 qualified leads is a bargain; one producing $400 leads has to bring bigger jobs or it is out.

Notice the word qualified doing heavy lifting. Cheap unqualified leads wreck this math from inside, which is the core argument of our Meta ads guide.

How much growth can you actually absorb?

Your budget’s ceiling is operational, not financial. Marketing that books work you cannot deliver produces angry reviews, refunds, and burnout, which is negative marketing you paid for.

Ask plainly: how many additional jobs, listings, or clients per month can the current team deliver well? A two-crew contractor who can absorb three extra projects a month has a real number to aim at: three customers times twelve qualified leads times $190 sets a monthly demand budget around $6,800, and spending double that buys problems, not growth. A solo realtor’s constraint might be hours in the week, which argues for spending on fewer, better-qualified seller leads rather than volume.

Budget to fill capacity plus a modest waitlist. When the waitlist is consistently long, that is your signal to hire, then raise the budget, in that order.

Where should the budget actually go?

Split it three ways: foundation, one primary growth channel, and a small experiment reserve. Spreading a small budget evenly across six channels produces six underfunded failures.

• Foundation first (roughly 20 to 30% in year one): the website that converts, tracking, your Google Business Profile, and review flow. Every acquisition dollar performs better after this layer works. The checklist lives in website mistakes that quietly kill lead generation.

• One primary channel (50 to 60%): chosen by how your customers actually buy. Urgent, searched services lean Google; visual, considered, local services lean Meta; relationship businesses lean content and community. The full decision framework is in SEO vs ads vs social.

• Experiments (10 to 20%): one new thing per quarter, measured, with a kill date. Not four new things monthly.

And inside whatever you spend, remember production is part of media. A $2,000 ad budget with zero budget for landing pages, creative, and follow-up is a leaky bucket with premium water.

When should the budget change?

Change it on evidence, quarterly, not on mood, monthly. Three signals each direction:

Raise it when: your cost per qualified lead is stable or falling while volume grows; capacity exists or hiring is underway; and one channel shows repeatable economics you can feed. Scaling a working system is the cheapest growth you will ever buy.

Cut or repair when: leads rise but booked work does not (fix qualification and follow-up before spending more); one channel’s costs creep past your allowable number for two straight months; or delivery quality is slipping under load. Cutting spend to fix operations is not retreat, it is sequencing.

The discipline that makes this possible is unglamorous: a monthly sheet with spend, leads, qualified leads, booked, won, and gross profit by source. Twenty minutes a month, and marketing stops being a faith-based expense. Benchmarks like WordStream’s ad cost studies can calibrate expectations by industry (WordStream), but your own sheet outranks every benchmark on the internet.

What does this look like for a real business?

A worked example, rounded for sanity. A GTA renovation contractor: average job $38,000, gross margin 35% ($13,300), close rate one in three from estimates, one in four qualified leads to estimate. Target: two additional jobs monthly.

• Allowable acquisition at 15% of gross profit: about $2,000 per job.

• Leads needed: 2 jobs × 3 estimates × 4 leads = 24 qualified leads monthly.

• Implied lead budget: roughly $4,000 a month, if leads land near $165.

• Year one plan: about $5,500 monthly total, with the extra $1,500 covering the site rebuild spread across the year, creative, and tracking.

That is roughly 8% of a $800k revenue business, and it landed there from the inside, not from a rule of thumb. Run your own numbers and yours might land at 4% or 12%, and both can be right.

This calculation is the first thing we do with every new client at Torred, before anyone talks channels, for contractors, realtors, and businesses across our industries. Budget follows math; channels follow budget.

**Book a Strategy Call** and bring three numbers: average job value, rough margin, and how many more jobs a month you could handle. We will do this math live and hand you the budget.

Sources

• BDC: How to set your marketing budget

• WordStream: Facebook Ads Benchmarks 2025

• Meta for Business: Lead ads with instant forms and website forms

• Google Business Profile Help: Tips to improve your local ranking on Google