In-house or a partner? An honest breakdown for DTC founders, including the hidden costs nobody puts in the proposal.
In-house media buying wins when paid social is your core activity and you have enough volume to carry a full team. A partner wins when you need creative volume, testing cadence and international experience without building a marketing machine yourself. For most brands growing from €15-20K per month toward €150-200K, the second scenario is the more honest math. This article puts both options side by side, including the costs nobody writes into the proposal.
When does in-house win?
Let's start with what in-house genuinely does well, because the advantages are real. Your media buyer lives inside your account every day, knows your product inside out and sits two desks away when you need to move fast. Every piece of knowledge that gets built stays inside your company, and you pay no fee on top of salaries. For brands where paid social is the core of the business model, that can be the right route.
But in-house only works under conditions. You need enough spend to carry a senior media buyer, a creative strategist and production capacity at the same time, because media buying without creative output is half a machine. You need to find, hire and manage those people, which in this market is not a side project. And you have to accept that their learning curve runs on your budget. Going in-house with one junior buyer and a freelance designer is not building a team, it is building a risk.
When does a partner win?
A good partner brings something you can barely buy in-house: pattern recognition across dozens of accounts at once. We see what works every week across 65+ brands in 18 countries, and those lessons flow straight back into your account. A hook that wins for one brand becomes the first test for the next brand instead of the twentieth. That head start does not come with a job posting.
Beyond that, profitable scaling runs on creative volume. More than 15,000 creatives in, we know that consistent output is the difference between a flattening growth curve and a brand that compounds month over month. An internal team of two rarely reaches that volume, and almost never in multiple languages at once. For brands with international ambition that weighs heavily: producing native creatives per market is a production system, not an extra task for your designer.
What are the hidden costs of in-house?
- Recruitment and salary for a senior media buyer, plus the months of searching before that person even starts.
- Creative production comes on top as its own cost line: strategy, creators, editing and variations per market.
- The learning curve runs on your budget, and mistakes in the first months cost real money.
- Fragility: if your buyer leaves, your system leaves with them and you largely start over.
- Your own time: managing, reviewing and course-correcting is founder work on top of everything else, exactly the work you wanted off your plate.
What are the hidden costs of an agency?
Honesty first: the wrong agency costs you more than the fee. You pay monthly while the output stays vague, you get reports instead of results, and the knowledge about your account stays with them instead of with you. The classic hours-for-hire shop runs your campaigns, sends a monthly report and calls that partnership. If after three months you cannot name what was tested and what it produced, you are paying for motion, not progress.
Even with a good partner there is an investment you should plan for: onboarding time. The first weeks go into learning your brand, your customer and your numbers. That is not waste, because without that foundation creatives turn generic. But do not expect week one to be your best week ever.
What should you look for when choosing a partner?
- Creatives as the core of the offer, not an afterthought next to operating buttons in Ads Manager.
- Proven cases with real numbers. We grew Buvanha from €50K to €470K in monthly revenue in 3 months, across 6 markets, without any team expansion on their side.
- Ownership that stays with you: your ad account, your data, your creatives.
- A fixed weekly testing cadence, with clear criteria for what wins and what stops.
- Someone who says it early when something is not working, even when that is uncomfortable.
You are not hiring extra hands, you are hiring a system that has already been proven across dozens of brands.
Conclusion
The choice between agency and in-house is not a matter of principle but a calculation of volume, speed and focus. Build in-house when paid social is your core, you can carry a full team and you have the time to lead it. Choose a partner when you want to scale without building a marketing machine yourself, so you can focus on product and brand while the creative and scaling work runs alongside.
Not sure which route makes sense for your brand? Book a call and we will look at your numbers and your options together. Even if the conclusion is that in-house is the better route for you, better to know now than a year from now.