How much does a media buyer cost for an online store

Three ways of charging

Model	Range	When it fits
Flat monthly fee	450-1,500 USD	The most common and most transparent option for small business
Percentage of ad spend	10-20 percent	Only at higher spend; on small budgets it rewards spending more
Lower fee plus performance bonus	reduced fee + % of sales	Works only with conversion tracking both sides can see

What moves the price

• Number of channels. Meta alone is one scope; Meta plus Google Shopping and search is another entirely.
• Catalogue size. Thirty products and three thousand mean different feeds and different campaign structures.
• Whether tracking exists. Building analytics from scratch makes the first month more expensive, because it is separate work.
• Who produces creative. Video and statics may be included or billed separately. This is the number one reason two quotes cannot be compared.
• Market. The US, Germany or Spain cost more per click than Eastern Europe, which changes required spend rather than the fee.

What ad spend is required

This is money separate from the fee, and the worst place to economise. The algorithm needs data volume to learn: roughly a few dozen conversions a week, otherwise campaigns never leave the learning phase and the numbers never stabilise.

Situation	Monthly minimum	Why
First launch, single channel	500-800 USD	Below this the algorithm cannot exit learning
Online store, Meta plus Google	1,200-2,000 USD	Each channel must be fed separately
US or Western Europe	from 1,500 USD	Higher auction pressure, more expensive clicks

A real sequence: a children's book store started on a single channel with under 500 dollars and about ten sales a month. After a proper site, conversion tracking across Meta and Google and managed traffic, it reached 10-12 orders a day, roughly 200 a month, and only then was spend scaled above 1,000 per channel. The order matters: first a combination that works, then money into it.

When it pays for itself

The maths is simple. With a 60 dollar average order value and a 40 percent margin, each sale leaves 24 dollars gross. A specialist at 600 dollars pays for themselves with 25 additional sales a month, under one a day. If your niche cannot produce that volume, the problem is unit economics rather than the contractor.

Why cheap ends up expensive

At 200 dollars a month nobody builds analytics, digs into unit economics or tests hypotheses systematically. There is only time to launch and watch. The usual result: you pay 200 in fees and burn 800 of spend on campaigns nobody finishes tuning.

FAQ

How much does a freelance media buyer charge?

Between 450 and 900 dollars a month for management of an online store, depending on channels and catalogue size. A small agency runs 700 to 1,500. Ad spend is always separate.

Is ad spend included in the fee?

No, and it should not be. Budget should come from your card directly into an ad account you own. When a contractor fronts the spend and issues one combined invoice, you lose the ability to verify actual spend.

Can I pay purely on performance?

Almost nobody works fully on performance, because results also depend on product, price, site and sales follow-up. The workable compromise is a lower fee plus a bonus, provided both sides see the same data.