"How much does an email agency cost?" is one of the most searched questions in this space, and the honest answer is: it depends on scope. Two proposals with the same monthly number can include very different amounts of work. This guide explains how agencies structure fees, what drives cost up or down, and how to compare proposals on what you actually get.
The short version: price follows scope, seniority, channels, and complexity. Compare proposals on deliverables, team, and outcomes, not on the headline number alone.
The common pricing models
| Model | How it works | Pros | Watch for |
|---|---|---|---|
| Monthly retainer | Fixed monthly fee for a defined scope or time allocation | Predictable budget; team continuity | Vague scope; unused hours |
| Tiered packages | Set packages by scope or brand size | Clear, easy to compare | Packages that do not fit your needs |
| Percent of revenue | Fee tied to email or channel revenue | Aligns incentives on the surface | Attribution disputes; can reward discounting; revenue is not profit |
| Hybrid | A base fee plus a performance component | Shared upside | Complex terms; clarify how performance is measured |
| Project-based | One-time fee for an audit, migration, or build | Clear scope and end date | Needs a clear handover; ongoing work is separate |
| Hourly | Pay for time used | Flexible for small needs | Unpredictable cost; incentive to bill hours |
Most retention agencies use retainers or tiered packages for ongoing work and project fees for one-off work.
What drives cost
| Driver | How it affects scope and fees |
|---|---|
| Number of channels | Email only costs less to run than email, SMS, direct mail, and loyalty together |
| Send and campaign volume | More campaigns per month means more strategy, copy, design, and QA |
| Flow complexity | Building and maintaining many branched flows takes more effort |
| Team seniority | Senior strategists and specialists cost more than junior executors |
| Creative needs | Custom design, photography direction, or video add work |
| Technical complexity | Integrations, data work, and migrations add effort |
| Testing and analytics | Rigorous testing and incrementality reporting take time |
| Brand size and revenue | Larger programs usually need more coverage |
| Peak season support | Extra capacity around BFCM may be included or priced separately |
| Speed | Faster timelines require more concentrated resources |
What should be included
A good retainer typically covers:
- Strategy: lifecycle plan, segmentation, testing roadmap, regular reviews
- Execution: campaign and flow builds, copy, design, QA, and sending
- Technical work: integrations, list management, deliverability monitoring
- Reporting: regular performance updates and deeper reviews
- Communication: a defined cadence and a named lead
Ask exactly how many of each deliverable are included, such as campaigns per month, flow builds or updates, tests, and reports.
What may cost extra
- Migrations and major rebuilds
- Large one-time projects, such as a full flow overhaul or a loyalty launch
- Additional channels or markets
- Extra rounds of creative revisions
- Peak season surge support
- Third-party tool costs, which are usually billed separately by the platform vendors
Clarify what is in and out of scope in writing.
Percent of revenue: what to think about
Some agencies price as a share of email or SMS revenue. It can feel fair, but consider:
- Attribution. Platform-attributed revenue includes sales that might have happened anyway
- Margin. Revenue from heavy discounts can cost you profit while raising the fee
- Incentives. Make sure the agency is not rewarded for discount-driven volume
- Definitions. Agree on the attribution window and how revenue is measured
If you consider a performance component, tie it to profit or incrementality where you can.
How to compare proposals
| Question | What you are checking |
|---|---|
| What exactly will be delivered each month? | Scope clarity |
| Who is on the team, and what share of their time is yours? | Capacity and seniority |
| What does the first 90 days look like? | Plan and priorities |
| How is success measured? | Metrics and honesty |
| What is excluded? | Hidden costs |
| What are the contract term and exit terms? | Flexibility |
| Who owns the accounts, flows, and assets? | Control |
| How is peak season handled? | Capacity when it counts |
See How to Choose an Email Marketing Agency for a fuller evaluation guide.
Questions to ask about pricing
- What does the fee include, line by line?
- How many hours or what team capacity does this cover?
- How do you handle work beyond scope?
- Do you charge setup or onboarding fees?
- How do you handle BFCM and other peaks?
- What reporting do we get, and how often?
- How can we adjust scope as our needs change?
- What happens to our assets if we leave?
Value, not just cost
The right comparison is the program's contribution to profit against what you pay and what an equivalent in-house setup would cost. See Agency vs In-House Retention Team. Consider:
- Revenue and profit lift from fixing flows, segmentation, and deliverability
- Time saved for your internal team
- Avoided costs, such as a damaged sender reputation or a failed migration
- Access to channels you could not run alone, such as direct mail and SMS
Red flags in pricing
- Guaranteed revenue outcomes
- Pricing with no defined deliverables
- A very low price that implies a junior team stretched across many accounts
- Long lock-in terms with no performance review
- Pressure to sign quickly
- Reluctance to explain what is included
How ATTN prices its work
Every ATTN engagement is scoped to the channels you actually need, so the proposal lists deliverables, not just a fee. A few things hold for every client:
- Month to month after the first three months. No long-term lock-in.
- A dedicated strategist for each channel, working to one shared plan and one set of goals.
- Custom email design is included with every email marketing program.
- An audit first, if you prefer. Start with an audit to see the opportunity before you commit to scope.
FAQ
How much does an email marketing agency cost?
It varies widely with scope, channels, team seniority, and complexity. Compare proposals by deliverables, not just price.
Is a retainer better than a percent of revenue?
Retainers are more predictable. Percent of revenue models can create attribution and margin issues, so read the terms closely.
What should I budget beyond the agency fee?
Platform costs for email, SMS, direct mail, and other tools, plus any creative production the agency does not cover.
Can I start with a small project?
Yes. An audit or a defined first phase lowers risk and shows how the team works.
How long is a typical contract?
Terms vary. Look for enough time to run strategy and testing, with a clear way to exit.
How ATTN helps
ATTN is a Klaviyo Platinum partner agency that builds retention programs across email, SMS, direct mail, and lifecycle strategy. Talk to our team about scope and what fits your brand.