💬 The short answer: most Shopify brands doing $500K–$10M a year pay $2,500 to $20,000 a month in agency fees, before ad spend. Where you land depends on how many channels you hand over and how senior the team is.
Got five agency proposals and five wildly different numbers? That's normal. One quotes $3,000 a month, another wants 15% of your ad spend, and a third bundles everything into a $12,000 retainer.
They're hard to compare because they're priced differently, not because someone's lying.
This guide breaks down what each service costs in 2026, how the four fee models work, and the math most founders skip: what an agency fee does to your break-even MER.
How much does an ecommerce marketing agency cost per month?
For context, Clutch's 2026 pricing data on 106,043 digital marketing companies puts the typical US agency at $100–$149 an hour for PPC, email and social work. Retainers are how that hourly cost gets packaged.
Here's our read of the 2026 market by service:
| Service | Typical monthly fee | Common pricing model |
|---|---|---|
| Meta / paid social | $1,500–$10,000 | Retainer or 10–20% of ad spend |
| Google Ads (Search, Shopping, PMax) | $1,500–$10,000 | Retainer or 10–20% of ad spend |
| TikTok Ads + TikTok Shop | $2,000–$15,000 | Retainer, often plus a GMV commission |
| Email + SMS (Klaviyo) | $1,000–$10,000 | Retainer, tiered by list size |
| Creative / UGC | $2,000–$15,000 | Per asset or monthly package |
| Full-stack (paid + email + creative) | $8,000–$50,000+ | Bundled retainer or hybrid |
Ad spend, creator payments and software sit on top of every number in this table.
Ecommerce agency pricing by service
Here, we're only talking about services that we also provide.
Meta and paid social
Meta is the line item most brands buy first. Creative volume moves the price most: an agency that writes hooks and briefs new ads every week costs more than one that only manages campaigns. Adding Pinterest or Snapchat typically adds 20–30% to the retainer.
Google Ads
Google prices almost the same as Meta. Shopping and Performance Max add feed work, so ask whether Merchant Center fixes are included or billed separately.
TikTok Ads and TikTok Shop
TikTok Ads management prices like Meta. TikTok Shop is a different job (affiliate outreach, samples, GMV Max) and published retainers run $5,000–$15,000 a month, often plus 5–10% of incremental GMV. Creator affiliate commissions of 5–10% per sale come on top.
Email and SMS (Klaviyo)
Retainers run $1,000–$3,000 for smaller brands and $3,000–$10,000 for larger programs. One-off builds cost extra: roughly $250–$1,000 per designed email and $1,000–$5,000 for a three-email flow. Your Klaviyo subscription is a separate bill.
Creative and UGC
Expect $150–$500 per static ad and $500–$2,000 per edited video. UGC marketplaces start at about $99 per video, before edits and usage rights.
💡 TIP: Ask every agency how many new ads per month their fee covers. If the answer is "as needed," get a number in writing. A brand spending $30,000 a month on Meta usually needs fresh creative every week.
The 4 agency pricing models
Every proposal uses one of these, or a mix:
- Flat retainer. A fixed fee for a defined scope. Easiest to budget. Watch for scope creep.
- Percentage of ad spend. Usually 10–20%, dropping as spend rises, often with a $1,000–$5,000 monthly minimum. It pays the agency more when you spend more, profitable or not.
- Hybrid. A base fee plus a smaller percentage above a spend threshold. Common past $50,000 a month in spend.
- Revenue share. A cut of revenue. Only works if both sides agree on one source of truth, like Shopify, not platform-reported ROAS.
What an agency fee does to your break-even MER
MER (marketing efficiency ratio) is total revenue divided by total ad spend. An agency fee is a marketing cost, so it raises the MER you need to break even.
Break-even MER = (ad spend + fee) ÷ (gross margin × ad spend)
At a 60% gross margin with no agency, you break even at 1.67. Here's how fees move that line:
| Monthly ad spend | 15% of spend | Flat $5,000 | Hybrid ($3,000 + 5% above $25K) |
|---|---|---|---|
| $10,000 | 1.92 | 2.50 | 2.17 |
| $25,000 | 1.92 | 2.00 | 1.87 |
| $50,000 | 1.92 | 1.83 | 1.81 |
| $100,000 | 1.92 | 1.75 | 1.78 |
At low spend, a flat retainer weighs most on your margin. At high spend, percentage fees cost the most. At $100,000 a month, 15% is $15,000 against a $5,000 flat fee.
These are our estimates built from the ranges above, not quotes.
Thinking about hiring in-house instead? The BLS median salary for marketing managers was $166,790 in May 2025. That's about $13,900 a month for one person, before benefits, software or the specialists they'd still need.
🤔 In two minds about your next marketing agency? We've complied a list of marketing agency red flags you might want to check before singing the dotted line. Check it out.
Hidden costs to ask about before you sign
- Setup fees. Commonly $500–$3,500 for audits, tracking and rebuilds.
- Minimum terms. Three-month minimums are common. Some agencies still ask for 12.
- Software. Klaviyo, attribution tools and Shopify apps. Who pays, and who owns the login?
- Creator costs. Creator fees, samples and usage rights.
- Account ownership. Your ad accounts, pixel and Klaviyo account should be yours from
💼 Comparing agency proposals? TGM runs Meta, Google, email and creative for eCommerce brands as one team, month to month. See how we work →
A note from Jack, Top Growth Marketing Founder
The monthly fee is the wrong number to compare. Two agencies can quote you $5,000 and $8,000, and the $8,000 one can still be cheaper if it gets your blended MER from 2.0 to 2.4. Put the fee into your break-even math first. There's no arguing with the data.
Pay for senior people on the big levers: creative, offers, landing pages and tracking. Weekly reports and extra calls don't move results. I'd rather a brand spend less on management and more on new creative.
Be careful with percentage-of-spend deals past about $50,000 a month. A flat or hybrid fee keeps everyone focused on profit instead of spend.
And don't sign anything you can't walk away from. We've worked month to month since 2011 because an agency should earn the seat every month.
Jack Paxton, Founder & CEO, Top Growth Marketing
Got a proposal on your desk and not sure it adds up? Book a growth strategy call and we'll run the break-even math on it with you.
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