What Klaviyo agencies charge in 2026
Expect a monthly retainer between about $2,500 and $10,000 for a Shopify brand, with project fees for audits and builds. Few agencies publish their prices, so most of what is public comes from roundups.
- eCommerce Fastlane puts Shopify email retainers at $2,500 to $10,000 a month.
- InboxArmy, an email agency, gives a US median of about $2,800 a month, and an example of a hybrid deal: a fixed fee plus 5% of email revenue above $50,000.
- The same sources suggest brands put about 6-10% of their marketing budget into email.
These are market figures from people who sell the service, so use them as a range to sense-check quotes.
Pricing models compared
There are 4 common ways agencies charge, and the right one depends on how predictable you want the bill to be and how you plan to measure results.
| Model | How it works | Good for | Watch out for |
|---|---|---|---|
| Monthly retainer | Fixed fee for an agreed number of campaigns, flows and services | Brands that want a predictable cost and a steady sending calendar | Vague scope, such as "unlimited emails" with no named team |
| % of email revenue | The agency takes a share of Klaviyo-attributed revenue | Brands with low cash for fees and high trust in attribution | Paying a share of revenue that would have come in anyway |
| Hybrid | Lower fixed fee plus a % above a revenue threshold | Brands that want the agency to share upside | How the threshold and attribution window are defined |
| Project | One-off fee for an audit, flow build or app migration | Brands with an in-house marketer who needs a rebuild | No one owns results after handover |
Freelancers usually charge by the hour or by project and cost less, with more risk if that one person becomes unavailable.
What drives the price up or down
The biggest driver is volume: the number of campaigns a month and how many flows need building or rebuilding. After that it comes down to scope and who works on your account.
- Campaigns per month. 12 campaigns a month is a different job from 28.
- Flows. Maintaining existing flows costs less than building new ones from scratch.
- Designed or plain-text. Designed emails need a designer for every send.
- SMS. Adds copy, compliance and a second calendar.
- Subscription work. Cancel flows, payment recovery and winback inside an app like Loop is extra scope that many email retainers do not include.
- Stores and languages. Each extra store or language adds builds and checks.
- Team. A dedicated account or CRM manager costs more than a shared one.
- Testing and reporting. Regular A/B tests and store-level reporting take time.
The catch with % of revenue deals
A % of revenue fee is only as fair as the attribution behind it. Klaviyo credits revenue to emails generously: Eightx's review notes a 5-day last-touch window that counts opens. Some of that revenue would have happened without the email.
Before you sign a % deal, agree on:
- Which revenue counts: flows, campaigns or both.
- The attribution window, and whether opens count.
- A store-level check, such as Klaviyo revenue as a share of total store revenue, so you can see if email is really growing the business.
We use that store-level share for our own results on this page, because you can compare it month to month and with other stores.
How Email Kong prices its work
We charge a fixed monthly retainer, not a share of your revenue. The price depends on how many campaigns you send each month, whether your flows need building first, and whether we also run your subscription programme in Loop (cancel flows, payment recovery and winback).
We quote after a short call and a look at your Klaviyo account, so the number reflects the work your store actually needs. We work with DTC brands doing roughly $3M to $50M a year in the US and UK.
How to tell if the price is worth it
Compare the yearly fee with the change in Klaviyo's share of your store revenue. Take a hypothetical brand doing $5M a year where Klaviyo moves from 15% to 23% of store revenue: that is about $400,000 more attributed revenue a year, against $48,000 a year for a $4,000 a month retainer. Attribution is generous, so treat that as an upper bound and look at total store revenue too.
Real examples from our clients, measured the same way:
- Kaori (women's health, subscription): Klaviyo went from 3.3% to 19% of store revenue. Flow revenue grew 17.7x, from $31,358 to $554,913.
- Penrose Skin (skincare, subscription): Klaviyo's share went from 15.2% to 23.2%. Flow revenue grew 10.5x.
- TwoPackBag (travel bags, one-time purchase): $1.38M in flow revenue in 90 days. Klaviyo's share went from 17.3% to 23.7%.
- KittySpout (pet, subscription): 46% of store revenue comes from Klaviyo.
When an agency is too early
If you are doing less than about $100,000 a month, a full retainer is usually hard to earn back. Set up Klaviyo's core flows yourself (welcome, abandoned checkout, browse abandonment and post-purchase), send a steady campaign calendar, and bring in an agency once email has enough revenue to grow.
