Newsletter sponsorship pricing is often handed down through folklore. A friend tells you what they charge. Someone posts a rate card in a Slack group. You see a "newsletter CPM" figure cited without any context about what audience size, niche, or open rate it's based on.
None of that is useful for working out what you should charge.
Here's the framework that actually works.
The formula
Effective CPM × (typical opens ÷ 1,000)
That's your rate. Let's break it down.
Effective CPM is the cost per 1,000 actual opens — not per 1,000 subscribers. A 30,000-subscriber newsletter with an 18% open rate delivers 5,400 opens. A rate of $25 CPM on opens = a $135 per sponsorship slot.
Typical opens is your average opens per issue for sponsored content. Use a three-issue average to smooth out spikes.
So if you have 30,000 subscribers, 18% open rate, and the fair CPM for your peer band is $25:
30,000 × 0.18 = 5,400 opens
5,400 ÷ 1,000 × $25 = $135 per slot
The 5 factors that affect your CPM
Not everyone should charge the same CPM. These factors push it up or down:
1. Niche audience quality. Finance, B2B SaaS, and professional audiences command significantly higher CPMs than general interest. Brands pay for relevance, not reach.
2. Engagement. Your open rate and click-through rate are the two numbers brands actually care about. High engagement justifies a premium CPM.
3. Sponsorship track record. Past results — conversion rates, brand case studies, returning sponsors — all make it easier to command higher fees. New-to-sponsorship creators should start closer to the median and raise with proof.
4. Audience geography. US-heavy audiences are worth more to most advertisers than globally mixed ones. UK, Canada, and Australia are strong. Other markets can pull the CPM down.
5. Exclusivity and placement. A single-sponsor issue, an exclusive newsletter slot, or a dedicated send commands more than a secondary mention in a mixed-content issue.
The pricing dilemma: too high or too low?
The two mistakes newsletter creators make are opposite but both costly.
Underpricing is the more common one. You name a rate, the brand says yes immediately, and you're left wondering whether you could have asked for more. Sustained underpricing means you're subsidising brand marketing budgets instead of building your own business.
Overpricing costs you in fill rate. A high per-slot fee with lots of empty slots can earn you less than a moderate fee that books consistently. The metric to track is total sponsorship revenue, not per-deal rate.
The answer to both is market data. Knowing what your peer band actually charges gives you a floor to negotiate from and a ceiling to aim for — and lets you make deliberate choices about where in that range you want to position.
Building your rate card
Once you have your CPM and implied slot rate, build a simple rate card:
- Primary placement (top of newsletter, dedicated callout): your full CPM-based rate
- Secondary placement (middle of newsletter, classified section): 50–70% of primary
- Dedicated send (single-sponsor issue): 1.5–2× primary
- Bundle discount (3+ issues): 10–15% off total
Having these numbers in writing — with your open rate, subscriber count, and niche — makes the pitch conversation much faster and signals that you take sponsorships seriously as a business.
Creator Rates is free to use. Submit your rates and see exactly where you sit in your peer band.