Managed SEO vs Hiring In-House: The Real Cost for Growing Companies

The Short Answer

Managed SEO costs $3,000-$7,500/month and starts producing within weeks. In-house SEO costs $150,000-$350,000/year fully loaded and takes 6-12 months before it runs at capacity. For companies under 200 people without an existing content or SEO function, managed wins on cost, speed, and coverage.

What In-House SEO Actually Costs

The obvious cost is salary. An SEO manager in the US averages \$110,000-\$143,000/year depending on experience and location. But one person is not a team.

To run SEO properly, you need:

• SEO strategist/manager: $110,000-$143,000
• Content writer (at least one): $55,000-$80,000
• Technical SEO or web developer (part-time): $40,000-$60,000 allocated
• Tools (Ahrefs, Semrush, Screaming Frog, analytics platforms): $12,000-$24,000/year

Fully loaded total: $217,000-$307,000/year. Add benefits, recruiting costs, and management overhead, and most estimates land between $250,000 and $500,000 annually (source) for a functional in-house SEO operation.

That gets you coverage for traditional SEO. It does not typically include AEO (answer engine optimization), web performance engineering, or AI search visibility. Those require additional specialists or training.

What a Managed SEO Service Costs

Industry averages (pricing guide) for monthly SEO retainers range from $2,500 to $7,500/month for mid-market companies. That's $30,000-$90,000/year.

At the higher end, a managed service includes content production, technical audits, and execution. Not just a report that tells you what to fix, but a team that fixes it.

The math is straightforward. Present a comparison:

• In-House: Annual cost $250,000-$500,000, time to first output 3-6 months, headcount required 2-4 FTEs, coverage gaps in AEO/web performance/dev work.
• Managed Service: Annual cost $30,000-$90,000, time to first output 2-4 weeks, headcount required 0, coverage gaps depend on provider.

A managed service is not cheaper because it delivers less. It's cheaper because the team is shared across clients and already built.

The Hidden Cost: Time to Value

Hiring takes 2-4 months. Onboarding takes another 2-3 months. Your new SEO manager needs to learn your product, audit the site, build a keyword strategy, and start producing content. Realistically, you are 6 months in before organic results start compounding.

A managed service starts with an audit in week one and publishes content in week two. The compounding clock starts sooner, and in SEO, time is the most expensive input. Every month you wait is a month your competitors are building topical authority you'll have to overcome later.

When In-House Makes Sense

In-house is the right call when:

• You're above 200 people and need SEO embedded in product, engineering, and marketing workflows daily
• Your content requires deep proprietary knowledge that an external team cannot replicate (technical documentation, regulated industries)
• You already have 2+ people doing SEO adjacent work and need a senior hire to lead them
• SEO is a core competency, not a support function. You're building a media company or content platform.

If three or more of these apply, hire. If none apply, don't.

When Managed Makes Sense

Managed is the right call when:

• You're under 200 people and don't have an SEO function today
• You need content, technical SEO, and web performance handled as one workstream, not three vendor relationships
• You want AI search visibility (ChatGPT, Perplexity, AI Overviews) in addition to Google rankings
• You want execution, not consulting. Reports are useful only if someone acts on them.
• Your site runs on a modern stack (or needs to move to one) and you want the team managing SEO to also manage the infrastructure

Most B2B companies between 5 and 200 people fall into this bucket. The managed service exists because building in-house at this stage is capital-inefficient.

What "Execution Included" Changes About This Math

Most SEO agencies deliver audits and strategies. You get a PDF. Then your team has to implement. If your team is two founders and a marketer, the PDF sits in a Google Drive folder.

"Execution included" means the managed service does not just identify what needs to happen. It does it. Content gets written and published. Technical fixes get shipped. FAQ pages get built with proper schema. Your site gets faster, your content library grows, and your AI search visibility improves, all without adding headcount.

This is the real differentiator in the managed vs in-house decision. The question is not "who identifies the work." It's "who does the work."

The Decision Framework

Ask three questions:

1. Do we have $250K+/year and 6 months to build an SEO team? If no, managed.
2. Do we need SEO, content, technical web work, and AEO as one service? If yes, managed. In-house rarely covers all four.
3. Is SEO a core competency or a growth lever? If it's a lever, outsource it. If it's the product, build it.

For most growing companies, the answer points to managed growth. You can always bring it in-house later once the function is mature and the volume justifies dedicated headcount.

Ready to see what managed SEO looks like for your company? Start a conversation with Migrate AI.