How much should I spend on ads? Start with your break-even

What is break-even ad spend?

Break-even ad spend is the point where the gross profit from the customers your ads bring in covers everything you paid to get them. Above that line, advertising makes you money. Below it, every month costs you money, however busy the phone feels.

“Everything you paid” matters. It isn’t only what Meta or Google charges you. If an agency runs the ads, its fee is part of the cost of every customer too. So the number to beat each month is your all-in cost:

All-in monthly cost = ad spend + agency fee

If you run the ads yourself, the fee is zero, but your own time isn’t free. Either way, write the number down before anyone writes a single ad.

One-time costs, such as a setup fee for building the account and the landing page, sit outside this monthly sum. Treat them as an investment you earn back over the months, not as part of the monthly line.

Why should I use profit, not revenue?

Because profit is what pays for advertising, and revenue isn’t. If a job brings in $1,800 and your gross margin is 45%, only $810 is left to pay for the ad that won it. Dividing your ad bill by revenue makes the target look far easier than it is.

So the second number you need is your profit per job:

Profit per job = average job value × gross margin

Gross margin here means what is left from a sale after the direct cost of delivering it: materials, labor, anything you pay out to do the job. Use your own figure. If you aren’t sure, err on the low side. A model that is a little pessimistic is far more useful than one that flatters you.

How many jobs do I need each month to break even?

Divide your all-in monthly cost by your profit per job, and round up. That is how many paying customers your ads must produce every month just to cover what they cost. Round up, because there is no such thing as half a customer, and falling one short means a loss.

Jobs needed = all-in monthly cost ÷ profit per job (rounded up)

This is the number to talk about with whoever runs your ads. Not clicks, not reach, not cost per click. Jobs. Everything else in an ad account is a way of getting to this number, and it is the one that decides whether the money came back.

How many leads do I need to get those jobs?

Divide the jobs you need by your close rate, and round up again. Your close rate is the share of inquiries that turn into paying customers: if you win one in four, it is 25%.

Leads needed = jobs needed ÷ close rate (rounded up)

Use your real close rate, from your own records, not the one you hope for. It is one of the most powerful numbers in the whole model. A business that closes more of its inquiries needs fewer of them, so it can afford to pay more for each one. Answering faster, quoting clearly and following up properly often moves this number more than any change to the ads.

What is the most I can pay for one lead?

Divide your ad budget by the number of leads you need, and round down. That is your ceiling: if a lead costs more than this, the month won’t break even.

Max cost per lead = ad budget ÷ leads needed (rounded down)

Notice that it uses the ad budget alone. The agency fee is already counted, because it went into the all-in cost that set the number of jobs. Counting it twice would make the ceiling look lower than it is.

Once the ads are running, compare this ceiling with what the platforms actually charge you for a lead. That one comparison tells you more than any dashboard.

What does this look like with real numbers?

Here is the same math run on the default inputs of the calculator on our homepage. They are example numbers, not a forecast, and not a promise of what your ads will do.

So at these numbers, the ads have to bring in 48 leads a month at no more than $125 each, and a quarter of them have to become customers, before the business is even. Only beyond that point do the ads start to pay.

What if the numbers don’t work for my business?

Then change one of the inputs before you spend anything, because a bigger ad budget won’t fix it. If the leads you need cost more than you can afford, there are only four levers, and only one of them is the ads:

• Job value: a bigger first order, a package instead of a single item, or a higher price.
• Gross margin: what each job costs you to deliver.
• Close rate: how fast you answer, how clearly you quote and how well you follow up.
• Ad budget and fee: a smaller test, or a cheaper way to run it.

Sometimes the honest answer is that paid ads aren’t the next step yet. That is worth knowing before you spend, not three months after. It is also the first thing we check on a strategy call.

So how much should I spend on ads?

Spend an amount you can keep up for a full test, and that your break-even math says can pay for itself. Start from the result, not from a round number someone suggested: work out the jobs you need, then the leads and the cost per lead they imply, and give the test long enough to learn.

A test that stops after a few weeks rarely tells you much. The first weeks go into building and learning; the useful numbers come after that. That is why our plans start with three months.

Whatever you spend, keep the four numbers on one page and look at them every week: all-in cost, jobs, leads and cost per lead. If they hold, scale up slowly. If they don’t, change an input, not just the targeting.

Where can I run my own numbers?

Use the break-even calculator on our homepage. Move the sliders for your ad spend, job value, margin and close rate, and it runs exactly this math for you, including our fee for the plan you pick.

To see what each plan costs and what it includes, see our pricing. And if you’re weighing up where to spend first, read Meta ads vs Google Ads.