DIY vs hiring: what running your own ads really costs

DIY marketing has one number everyone loves: zero. No management fee, no retainer, no invoice. You run the ads and pocket the difference. Except zero is the most expensive number in small business, because it hides three costs that never hit a card statement: the tools you rent, the hours you burn learning and tending, and the slice of the budget that leaks while you figure it out. Add those up honestly and “free” often costs more than a fee. Here is the real math, both ways, and the honest line where DIY still wins.

The DIY price tag that isn’t on the tin

Before you buy a single click, running your own ads properly costs money every month. You need a keyword research tool to find what people search, and call tracking so you know which ad made the phone ring. Skip those and you are guessing. A realistic tool stack runs $140£110 to $190£150 a month between the keyword tool and the call tracking. Over a year that is a four-figure sum before you buy a single click.

Your time has a price, so put one on it

Your time is the most expensive input you have, and the one nobody puts on the invoice. If you bill a customer $140£110 an hour, that is what an hour of your evening is worth, written down or not. A real account needs 8 to 12 hours a month of tending: search-term audits, negative keywords, bid tweaks, ad testing. At $140£110 an hour, 10 hours is $1,400£1,100 a month of your own time, spent at midnight when you should be sleeping or selling.

The beginner leak nobody prices in

Every account leaks, but a beginner account leaks hardest: broad match left on, no negative keyword list, Search Partners spending your budget on junk. In WordStream’s 2026 study of 15,666 Google Ads accounts, the median account wasted about $1,127 of a $3,127 monthly spend on clicks that did not convert. On $2.5k£2k a month, a 30 percent leak means almost a third of the budget is gone every month while you learn. And the learning curve is itself a cost: the months you spend getting good are months a competitor books the jobs you are paying to chase.

DIY vs agency, all-in

Here is the honest side by side for a business spending $2.5k£2k a month on ads. The ad spend itself is the same either way, so it is left out: this is the cost of running the ads, not the ads. The leak is the share of that $2.5k£2k that goes to searches that never book.

The DIY column comes to nearly twice the agency column. That is arithmetic on example numbers, so swap in your own hourly rate and your own leak. The fee you were avoiding turns out to be the smaller line. What actually costs you is your time and the leak, exactly what a competent account removes. One-time tracking setup ($850£650) sits on the agency side in month one, then disappears, and it is what shrinks the leak from 30 percent to 10. We break the numbers down in 5 ways a marketing agency actually saves you money.

When DIY genuinely wins

Be honest: DIY is not always a losing game. Below roughly $1.3k£1k a month in spend, the leak is small in absolute terms and a full fee is most of a small budget. A lean account also needs far fewer hours than the 10 above. With genuine time and interest, doing it yourself, or buying one hour of a consultant at $140£110 to check your setup, is often the right call.

The same budget, two ways

So which is cheaper for you?

Add it up for your own numbers. Take what you charge per hour, the hours you spend, your tool bill, and an honest guess at your leak (your search terms report shows it), then compare it to a flat fee. Then use the rule below, because “it depends” is not something you can act on.

If you would rather aim the budget than spray it, we run Google Ads and Local Services Ads with tracking built in and no long contracts, so you can leave the month you stop seeing value.

Still weighing it up? Read whether an agency is worth it for a small local business and the five ways an agency actually saves you money. When you want a straight answer on your own numbers, look at how our Google and Meta ads management works and tell us what you spend. We will say honestly whether DIY is still your cheaper option.