Email newsletters are one of the most expensive ways an advisor can try to win a new client. In Kitces Research’s 2026 survey of 506 advisors, newsletters cost about $40,630 per new client and $4.14 of marketing per $1 of new yearly revenue, behind only client events and social media. Only about a quarter of the firms sending one won a client from it in the past year. That doesn’t make email useless. It makes it a poor tool for finding strangers and a good one for staying in front of people who already know you: referred prospects who aren’t ready, past prospects who said “not yet”, and guests at your events. Here’s the data, when email works, how to write it, and the rules that apply.
What Kitces measured
Kitces counts both money and the advisor’s time, and newsletters are mostly time.
Source: Kitces Research, The Kitces Report, Volume 2, 2026, Figure 4.1
Two notes on reading it. The cost figures are aggregate averages, which add up everything firms spent on the tactic, including the newsletters that won nobody, and divide by all the clients it brought in. And several newsletter metrics rest on 5 to 9 responses, so treat the exact numbers loosely. The direction isn’t in doubt: advisors rated newsletters 3.4 out of 10 for satisfaction, and usage fell 6 percentage points in two years, the steepest drop of any content tactic.
Here’s where newsletters sit against the other channels.
Why newsletters cost so much
The typical advisor newsletter in Kitces’ data is monthly, about 800 words, written entirely in-house and sent by email. That’s a few hours a month of the most expensive time in the firm. Across content tactics, the advisor’s own time made up about 69% of the cost, against 57% for other tactics, and the cost per dollar of revenue for content rose above $2.50 once a firm passed $500,000 of revenue.
The bigger problem is the audience. A newsletter list is mostly people who aren’t choosing an advisor this year. Each issue has to be written for all of them to reach the few who are. The channels at the cheap end of the chart work the other way round: a prospect who’s already choosing finds you and checks you.
What the newsletters that worked did differently
Kitces split newsletter users by how they ran them. The samples are small, so read these as directions rather than benchmarks.
More often, longer and less of the advisor’s time all went with better results. That fits Kitces’ broader finding that “consistency and repetition” build trust, and that taking work off the advisor is what makes a time-heavy tactic affordable. Kitces also found that successful advisors leaned on social media and media appearances more than newsletters to support their content: a newsletter works better as one part of a system than as the whole of it.
When email does work
Email is cheap to send. What’s expensive is writing for a cold list. Point it at people who already know you and the economics change.
- Referred prospects who aren’t ready. A friend gave them your name, they met you, and the timing was wrong. A short note every month or two keeps you the obvious choice when it’s right.
- Past prospects who said “not yet”. Kitces’ close-rate benchmark of 50% to 80% applies to qualified prospects. Someone who was qualified a year ago may be qualified again.
- Event guests. Advisors fill events from their own lists: 77% of firms running seminars and 85% of firms running webinars promote them through an email list they maintain. Seminars were among the better-value events in the study, at $1.76 per $1 of revenue.
- Centers of influence. A CPA or estate attorney who refers to you needs reminding what you do and who you serve, not a market update.
- Clients. Email keeps clients informed and gives them something to forward. Kitces measures new clients only, so none of this value shows up in the newsletter’s cost per client.
How to write one people read
What follows is practice rather than measured data, except where noted.
- One idea per issue. A single question your clients ask, answered properly. Kitces’ data says longer issues did better, and one idea can still run to 1,000 words.
- From a person, in plain text or close to it. A note from you, signed by you, reads like a letter. A designed template with five articles reads like a brochure.
- A subject line that says what’s inside. “What the new contribution limits mean for your 401(k)” beats a clever line, and CAN-SPAM bans deceptive subject lines anyway.
- Something to reply to. End with a question or an offer to talk. Replies are the most useful thing you can measure.
- A schedule you can keep. Monthly is the norm in Kitces’ data. More often worked better when firms kept it up.
Don’t judge it by open rates. Since 2021, Apple Mail has let users stop senders from knowing when they open an email, which makes open rates unreliable. Count replies, meetings booked and new clients who mention the newsletter when you ask how they found you.
Building the list, with consent
Grow the list from people who chose to be on it: clients, prospects you’ve met who said yes to hearing from you, event guests who asked, and visitors who signed up on your website. Don’t buy a list. Purchased addresses hurt your sender reputation, and in Canada you’d need consent you can’t prove.
In the US (CAN-SPAM), consent isn’t required before a commercial email, but every message must:
- Use accurate “from” and header information and a subject line that isn’t deceptive.
- Identify itself as an advertisement, clearly and conspicuously.
- Include your valid physical postal address.
- Say how to opt out, and honor opt-outs within 10 business days.
Each email that breaks the law can cost up to $53,088, the FTC’s inflation-adjusted figure as of January 2024.
In Canada (CASL), you need consent first. Express consent, where someone agreed to hear from you, has no time limit until they withdraw it. Implied consent, such as from an existing business relationship, is time-limited: up to 2 years, or 6 months after an inquiry. Every message must identify you, include a mailing address and another way to reach you, and carry an unsubscribe that’s acted on within 10 business days at no cost.
For delivery, Gmail requires every sender to authenticate with SPF or DKIM and keep reported spam below 0.3%. Senders of 5,000 or more messages a day also need DMARC and one-click unsubscribe. Most small firms are well under that, but any reputable email service sets up the basics for you.
The marketing rule
A newsletter that offers your advisory services to more than one person is an advertisement under the SEC marketing rule, Rule 206(4)-1. That holds even when each copy is addressed to one person: the SEC said in adopting the rule that bulk emails, and mass mailings personalized with a name, aren’t one-on-one communications. In practice:
- Every claim needs a reasonable basis. The rule bars untrue or unsubstantiated statements of material fact and benefits described without the risks.
- Testimonials and ratings need their disclosures next to them. A client quote in a newsletter has to say the person is a client, whether they were paid, and any conflict. See The SEC marketing rule for small RIAs.
- Performance has its own conditions. Market commentary is fine; your own returns or a projected return for a strategy bring extra requirements.
- Keep a copy of every issue. Rule 204-2 requires advisers to keep copies of all advertisements they disseminate. Most email services keep an archive, but export it into your own records too.
If your firm is registered with a state rather than the SEC, your state’s advertising rules apply instead.
A simple plan
- Write for people who already know you. Clients, referred and past prospects, centers of influence and event guests.
- Pick a schedule you can keep for a year, monthly at least, and one idea per issue.
- Hand off everything but the idea. Editing, formatting and sending can go to staff or a writer. Kitces’ data says outsourced newsletters did better.
- Measure replies, meetings and clients, not opens.
- Price it after a year. Count your hours at your hourly rate (the fee-only median is $300) plus any costs, and divide by the clients who came from it. Compare that with the $2,551 median Kitces found across all channels. See Client acquisition cost for financial advisors, by channel.
Where Wellspent fits
A newsletter reaches people who already know you. Wellspent is for the ones who don’t yet. Members get a verified record in the public graph at find.wellspent.co with their fees, specialties and the clients they serve, read by AI assistants and search, so prospects who are choosing an advisor now can find and check them. Introductions arrive with no lead fees and no share of client fees, and membership includes a monthly report on who AI assistants recommend and quarterly press placement with media partners, for $89 a month. See How it works and How to get clients as a financial advisor.