In house marketing vs agency cost

The question "should we hire someone or work with an agency" usually gets settled by gut feeling, even though it takes ten minutes to calculate. Below is a line by line in house marketing vs agency cost comparison with real numbers, a split of what each side does better, and an honest note on where our maths is biased.

Key takeaways

• Gross salary is not the cost of an employee. In Slovakia the employer adds mandatory contributions of 36.2 percent on top of it under the rates effective from 1 January 2026.
• One in house marketing generalist costs a company roughly 31 000 to 36 000 euros a year once you add equipment, tools and training. That is about 2 600 to 3 000 euros a month.
• For the same money an agency gives you more professions but fewer hours, and none of the inside knowledge your own employee accumulates.
• According to the Gartner CMO Spend Survey 2025, which polled 402 marketing leaders, agencies receive 20.7 percent of the average marketing budget and 39 percent of CMOs plan to cut that share.
• The hybrid model wins more often than either pure model: someone in house owns the brief and the communication, the agency delivers the craft you cannot justify employing full time.
• One sentence rule: whatever you do every week belongs inside, whatever you do monthly or less often belongs outside.

What does an in house marketer really cost?

Around a third more than the gross salary, and that is before equipment and software. Most companies count only the salary, which is why the in house option looks cheaper on paper than it is.

Take a mid level marketing generalist in Slovakia at roughly 1 900 euros gross a month. Employer contributions add 36.2 percent, so you multiply by 1.362. Here is the calculation you can copy into a spreadsheet in five minutes:

• Gross salary 1 900 euros a month, so 22 800 euros a year.
• Employer contributions at 36.2 percent, so 8 254 euros a year. Running total 31 054 euros.
• Laptop, camera or microphone, spread over three years: 700 to 1 200 euros a year.
• Tools such as a scheduler, a stock library, editing software and analytics: 1 200 to 2 400 euros a year.
• Training and conferences, unless you want the person to fall behind within two years: 500 to 1 000 euros a year.

That lands at 33 500 to 35 700 euros a year, or 2 800 to 3 000 euros a month. And this is a person with holidays, so about eleven productive months, of which the first three are spent learning your business.

What does an agency cost and what do you get?

Fewer hours, but several professions at once. That is the whole difference and also the whole trap.

When a company pays an agency 2 000 euros a month, it is not buying 160 hours of one person. It is buying maybe 25 to 40 hours, split between a strategist, a copywriter, a designer, a camera operator and an editor. For a company that needs one video a month and copy along the way, that is the better deal. For a company that needs daily replies to comments and weekly e-shop updates, it is a bad deal: you are paying an expertise premium on work that does not need it.

Concrete numbers for one service are in our separate piece on how much social media management costs. The direction of travel is visible in the wider market too: coverage of the Gartner survey noted that cmo agency budget cuts are planned by 39 percent of marketing leaders, mostly by ending unproductive agency relationships rather than by cutting output.

What does each side do better?

The dividing line is not expertise. It is frequency and access to information.

An in house person wins wherever you need to be in the building. They know there was an incident in the warehouse on Thursday, so today is not the day for a cheerful post. They can catch the owner in the corridor and get copy approved in three minutes. Above all they collect the raw material an outsider can never get: photos from the production floor, stories from the sales team, the real reason a customer bought.

An agency wins wherever you need craft or distance. Video, campaign concepts, visual identity: things a company needs a few times a year and cannot justify employing for. And then the outside view, which every company loses after a few years. Nine out of ten weak corporate videos we have seen failed not because of budget but because they were approved by someone in love with their own company.

In practice it comes down to one sentence we use in consultations: whatever you do every week belongs inside, whatever you do monthly or less often belongs outside.

When is the hybrid model the right answer?

Almost always, once your budget passes roughly 2 500 euros a month and you can employ someone at least half time.

In practice the hybrid means one person inside owning the plan, the communication and the fast work, with an agency delivering everything that needs equipment and several people at once. Our experience from projects like SlovakiaTech and KUKA TechDay is unambiguous: when the client has one person who knows the project and can decide, production runs about a third faster and hurts about half as much. When that person is missing, half the budget is eaten by waiting for answers.

If you are starting a hybrid, the first thing you need together is a shared content plan. The template and the process are in our article on how to build a monthly content plan, and the definition is in the glossary under content plan.

Where is this calculation wrong?

It compares cost rather than value, and it was written by an agency. Keep both in mind.

An employee has one property no agency can match: knowledge accumulates inside them. After two years they know more about your customers than any external partner, and their cost per unit of output keeps falling while an agency rate stays flat. If you plan to do marketing systematically for the next ten years, a fully in house team is cheaper at the finish line. Our numbers flatter the agency mostly because they cover the first year.

The second admission: an agency always has an incentive to sell more scope than you need. That is why this article includes the cases where you do not need us. If you ask us for something you could do yourself at a third of the price, we will say so, but it is fair to know that not everyone will.

How do you decide in one evening?

Write down everything marketing actually has to produce in a month, with its frequency and an hour estimate.

Then split the list into three columns: weekly work, monthly work, and work that happens twice a year. Add up the hours in the first column. Above 80 hours a month you need someone in house regardless of what agency rate cards say. Below 30 hours you cannot fill a role, and an agency or a freelancer is the only sensible route. In between sits the band where a half time hire plus an external partner works best. How to turn that list into a plan is in our text on marketing strategy for small businesses, and what we deliver is on our services page.

Frequently asked questions

Is a freelancer just a cheaper agency?

No, it is a different tool. A good freelancer is excellent at one recurring task, copy or editing for example. They do not have the capacity to run a campaign that needs strategy, production and rollout at the same time, and when they get sick nobody covers for you. If you build on a freelancer, keep a second one warm.

How long until an in house marketer pays for themselves?

Budget three months for onboarding and six to nine before measurable numbers appear. If you expect results within two months, do not hire, buy finished work instead.

Can an employee replace a video production company?

For short social formats, yes, and increasingly so. For anything that represents the brand outward, an image film, a commercial or a campaign, the gap in lighting, sound and direction shows immediately. A sensible split is fast content in house, representative content outside.

How do you measure whether an agency is worth it?

Compare cost per unit of output, not the monthly invoice. Divide the invoice by the number of finished things you actually received and used, then do the same for your employee including contributions. That number is the only fair comparison.

If you want to run this calculation on your own numbers, write to us through our contact page. We do not mind if the answer turns out to be hire someone. At least you will know why.