Klaviyo Agency Pricing in 2026:
What Retainers, Builds and Revenue Share Really Cost

Klaviyo agency pricing comes in three forms. Monthly retainers mostly sit between $2,500 and $10,000 in published 2026 guides. One-time flow builds and setups run about $2,500 to $15,000. Revenue share deals are quoted at 5 to 15% of email revenue. Freelancers charge roughly $40 to $150 an hour.

Those ranges come from different sources that measure different things. This guide shows who says what, what each price should buy, and how to compare a flat fee against a revenue share on real numbers.

How much does a Klaviyo agency cost per month?

Most specialist Klaviyo retainers land between $2,500 and $10,000 a month. The sources disagree on the edges.

The low end is real but buys less. The ranking above says retainers under $2,500 usually cover templates and sends, not strategy and segmentation. The rate card above prices by volume: $1,200 for 4 emails a month, $5,000 for 16 emails and 4 texts.

Hourly rates explain the spread. Clutch lists US email agencies at $100 to $149 an hour. Fiverr puts Klaviyo freelancers at $40 to $150 an hour. A $5,000 retainer at $125 an hour buys about 40 hours a month.

What do Klaviyo agencies charge for setup and flow builds?

Expect a one-time fee before or alongside the retainer. Published ranges:

• Audit: about $1,000 on one agency's rate card, sometimes waived if you sign a retainer.
• Core flow builds: $2,500 for 5 to 9 emails, up to $6,000 for 13 to 17 retention emails, on the same rate card.
• Setup or migration: $3,000 to $15,000 in one agency ranking.
• All one-time fees combined: $3,500 to $12,500 in one retention cost guide, covering migration, integrations, list cleaning, templates and a deliverability audit.

Freelancers price lower per piece. Fiverr's guide lists $150 to $400 for a basic flow and $1,500 to $4,000+ for an advanced flow system.

Design is often extra. Two sources put ongoing template and design work at $500 to $2,000 a month on top of the retainer, and the retention cost guide says starter tiers often exclude it. Ask before you sign.

If you want help deciding between a build and an ongoing plan, our retainer vs project pricing guide walks through when each makes sense.

What should a Klaviyo retainer include?

A retainer should cover strategy, production and measurement. Sends alone are a production contract.

Use this as a checklist when you compare proposals:

The tiers in one 2026 retention guide map scope to price. Its $3,000 to $5,000 starter tier covers core flows, 3 to 4 campaigns a week and monthly reporting. Its $5,000 to $8,000 tier adds 8 to 12 flows, SMS, A/B tests and bi-weekly calls.

For flow-level targets to hold an agency to, see our Klaviyo flows revenue benchmarks.

How do list size and SKU count change the price?

List size moves price through send volume and risk. SKU count moves it through segmentation and design work.

List size. Bigger lists mean more segments, more deliverability work and more revenue at stake per send. Fiverr's guide shows project prices rising from $200 to $600 at about 5,000 subscribers to $3,000 to $8,000+ above 100,000. The retention guide ties tiers to brand revenue: $3,000 to $5,000 for $1M to $5M brands, $8,000 to $10,000+ above $15M.

Klaviyo's own bill also grows with the list. Klaviyo prices on active profiles, with SMS billed separately. eightx lists the email plan at $150 a month for 10,000 profiles, $720 for 50,000 and $1,380 for 100,000. That fee goes to Klaviyo, not the agency.

SKU count. No source we found prices by SKU, so treat this as a scope question. A 12-SKU supplement brand needs a few replenishment flows. A 2,000-SKU apparel store needs browse and category logic, product feeds in templates and more segments. Expect the second to quote higher for the same send count.

How does revenue share pricing work?

The agency takes a percentage of email-attributed revenue, sometimes on top of a smaller base fee.

One email pricing guide puts revenue share at "usually 5 to 15 percent" of email-attributed revenue for larger accounts, with 5 to 10% common for growing stores. Klaviyo's own agency pricing course describes value-based pricing through revenue share, often as a lower flat rate plus a share.

Not everyone likes it. One agency ranking calls a percentage of email revenue a red flag because it rewards over-sending and heavy discounting.

The bigger issue is the number the share is based on. Klaviyo's default attribution credits a sale to an email within 5 days of a click or 5 days of an open. Apple Mail Privacy Protection preloads images and records false opens. So some attributed revenue would have happened without the email. A revenue share pays the agency on that too.

Flat fee vs revenue share: which costs less?

It depends on your email revenue. Here is a worked example for a fictional $2.4M a year skincare brand.

Assumptions: store revenue averages $200,000 a month and peaks in November. Klaviyo-attributed email revenue ranges from $40,000 in a slow month to $140,000 in BFCM month. Offer A is a $4,500 flat retainer. Offer B is 8% of Klaviyo-attributed revenue.

The break-even point is $56,250 of email revenue a month, which is $4,500 divided by 8%. Above that line, the flat fee wins every month.

Run it over a year. Say the brand has 3 slow months, 5 average, 3 good and 1 BFCM month. Offer A costs $54,000. Offer B costs $9,600 + $22,500 + $16,800 + $11,200, which is $60,100. The share costs about $6,100 more, with most of the gap in November.

If you accept a revenue share, put guardrails in the contract:

• Base it on click-attributed revenue, or a shorter open window.
• Cap the monthly fee, or step the percentage down above a threshold.
• Measure lift against a baseline period or a holdout group, not total attributed revenue.

Our contract terms guide covers how to write those clauses.

Agency, freelancer or in-house: what does each cost?

Each option has a different cost floor and a different ceiling on output.

The same retention guide estimates total in-house cost at $102,000 to $167,000 a year once you add freelance design, Klaviyo and SMS. Our cost of a senior Klaviyo or Meta hire post breaks down salary and ramp time, and the agency vs in-house guide covers the trade-offs beyond cost.

When should you not hire a Klaviyo agency?

Below about $20,000 a month in store revenue, a $2,500+ retainer is hard to pay back.

At that size, build the core flows yourself or hire a freelancer for a one-time build. Welcome, abandoned checkout, browse abandonment and post-purchase cover most of the early revenue. Then send 1 to 2 campaigns a week from a simple template.

Hire when email is a meaningful share of revenue and the gaps are clear. For our top clients, email is 35 to 40% of revenue. If yours is far below that, compare your numbers to our D2C email revenue benchmarks, or run the revenue gap calculator to size the opportunity before you pay anyone.

For the full decision across email, ads and CRO, read how to hire an ecommerce marketing agency. If you are pricing ads too, see Meta ads agency pricing. When you have quotes in hand, check them against our questions to ask before hiring and our Klaviyo agency guide. If you want a scoped quote for your store, you can book a call at /contact.