When to hire an in-house media buyer

Quick Answer

The right time to hire an in-house media buyer is when your monthly ad spend is consistently above $50k AND you have enough creative volume and operational complexity to justify a full-time role. Below those thresholds, an agency or freelance buyer is more cost-effective. Above $200k/month spend, in-house is almost always the right call. The hire pays for itself through tighter feedback loops, deeper context, and uninterrupted attention.

The Framework

1. The $50k/month threshold

Below $50k/month spend, a full-time in-house buyer is overhead. Agencies (typically charging 10-15% of spend) cost less than a salaried hire. Above $50k, the calculation flips — paying 15% to an agency = $7,500/month, which is approaching a junior in-house salary.

2. The complexity test

If your account has multiple geos, multiple product lines, complex reporting needs, or you need a buyer in your daily standup — in-house is right. If you're a single-product, single-geo brand running 4 ad sets, an agency is fine.

3. Salary expectations (UK/2026)

Junior media buyer: £35-50k. Mid-level (3-5 years experience): £55-80k. Senior (lead role): £85-130k. Plus performance bonuses tied to ROAS or revenue. Most accounts at $50-200k/month spend hire mid-level.

4. The make-or-break: do they have access to creative?

The best in-house hire fails if they don't have a creative pipeline to draw from. Hire a buyer only if you also have (or can build) the creative production capacity to feed them. A buyer with no creative is a bottleneck waiting to happen.

5. Hire from accounts at similar scale

Don't hire someone who's only managed $2k/day budgets to run a $20k/day account. The skills are different. Look for buyers with current or recent experience at your spend tier.

6. Avoid the 'hire and forget' trap

An in-house buyer needs the rest of the business to support them: creative, analytics, finance approving budget changes quickly. Hiring a buyer into a vacuum produces frustrated buyers and unchanged results.

Real Numbers from the Field

A DTC apparel brand had been with an agency for 2 years, paying $14k/month on $90k/month spend. They hired an in-house mid-level buyer at £72k/year (~$7,500/month). The buyer had context, attention and was in standup daily. Within 3 months ROAS improved 18% (the agency had been managing 5 accounts and giving theirs partial attention). The hire paid for itself in spend efficiency alone, plus the saved agency fee.

Frequently Asked Questions

Can I keep an agency and add an in-house buyer?

Sometimes useful for handover or specialised channels (e.g., agency for Google, in-house for Meta). But avoid both running Meta — you'll create conflicting strategies.

How do I evaluate a media buyer in interview?

Show them an anonymised account snapshot. Ask: 'What would you do first?' Their thinking reveals more than their CV.

Should the buyer be on a performance bonus?

Yes, tied to a metric they can actually move (ROAS, blended CAC, contribution margin). Avoid pure spend-based bonuses that incentivise growth at any cost.

Do I need a senior or junior buyer first?

Mid-level. Junior needs supervision you can't provide. Senior costs too much before you've proven the role. Mid-level is the sweet spot for most first hires.

How do I retain a great media buyer?

Give them ownership, good tools, clear KPIs, and the budget to attend industry events. Great media buyers leave for autonomy, not money.

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