How to Start a Business Newsletter That Pays Off

In short: a business newsletter pays off when it serves the reader first, arrives on a schedule you can keep, and points to one measurable action (a quote, an order, a booking). You can start with no budget, since Brevo’s free plan allows 300 emails a day in November 2026, but you must follow the email rules of your country (CAN-SPAM in the US, PECR and UK GDPR in the UK) from the very first send.

An email list has one advantage no social network offers: you own it. An algorithm can halve the reach of your posts overnight; an email address stays on your list for as long as the person wants to read you. That is why a newsletter remains one of the most profitable channels for a small business, as long as you treat it like an editorial product and not a flyer.

What is a business newsletter?

It is an email sent on a regular schedule to people who chose to receive it. It differs from two close relatives:

• The promotional campaign, sent once for a specific offer (a sale, a launch, an event).
• The automated email, triggered by an action (sign-up, abandoned cart, purchase anniversary), which belongs to marketing automation.

The newsletter sets up a recurring appointment. Its job is not to sell in every issue but to keep you the business readers think of on the day they need what you offer. Our guide to email marketing covers every use of email; this article focuses on the regular letter.

Why start a newsletter? Three possible goals

Before you pick a tool, set one main goal. It decides the content, the rhythm and the metrics.

1. Bring customers back. For a store, an online shop or a contractor, the newsletter reminds people of seasons, new products and upcoming maintenance. It is a customer retention tool.
2. Warm up prospects. For a B2B service with a sales cycle measured in months, it keeps the relationship alive with people not ready to buy yet. That is lead nurturing.
3. Build authority. For a firm, a consultant or a licensed professional, it proves expertise issue after issue, without cold outreach.

One issue can serve several goals, but only one should drive your decisions. Otherwise the newsletter becomes a catch-all that nobody reads to the end.

Which tool should you use for a newsletter?

An email marketing tool does four things your inbox cannot: manage sign-ups and unsubscribes, format a message that reads well on a phone, send in bulk without landing in spam, and measure results. Free plans are enough to start.

Tool	Free plan (November 2026)	Paid plans
Brevo	300 emails per day, with Brevo branding	Starter and above, priced by monthly email volume
Mailchimp	250 contacts, 500 sends per month (250 per day)	Essentials and above, priced by number of contacts

Check current USD prices on each pricing page before you commit: they change often and depend on list size.

To choose between tools, look at:

• How you are billed: by contacts or by emails sent. A large list emailed once a month costs less on volume-based pricing.
• Where data is stored and whether a data processing agreement is available, which matters for UK and EU subscribers.
• Forms and landing pages included, and how they connect to your website.
• The automation you will need later: welcome sequence, follow-ups, segments.

If your site runs on a common CMS, also check that an official plugin connects the form to the tool without workarounds.

How often should you send a newsletter?

The honest answer: as often as you can with content worth reading. A thin weekly letter triggers more unsubscribes than a dense monthly one.

Some practical benchmarks:

• Monthly: the minimum to avoid being forgotten. Right for most small businesses and professional firms.
• Every two weeks: suitable if you already publish articles or product news at that pace.
• Weekly: for those with plenty of material (industry news, frequent new products) and someone dedicated to it.

Pick a fixed day and time too. Consistency builds a habit, and it forces you to plan topics instead of hunting for an idea the night before.

What should you put in a business newsletter?

A good newsletter rests on one simple promise, stated on the sign-up page: “every month, three ideas to cut your energy bill,” “our new arrivals and a seasonal recipe.” Readers know what they will get; you know what to write.

A structure that works for most businesses:

1. One useful main topic, covered in a few paragraphs: a tip, a common mistake, a lesson learned with numbers.
2. Two or three short items: a blog post, a new product, a date.
3. One clear call to action: request a quote, book, see the offer of the month.

Reuse what you already have: a blog post becomes a newsletter topic, a customer question becomes a short item. Our method to repurpose content explains how to move from one format to another.

Angles by business type. A plumber can send a furnace tune-up reminder in the fall with open appointment slots. A clothing boutique presents its new collection around one styling tip. An accounting firm sums up its clients’ tax deadlines each month. A B2B software company shares a customer use case and a little-known feature. In every case, the content helps first and the sale follows.

What are the legal rules for sending a newsletter?

The rules depend on where your subscribers are.

In the US, the FTC’s CAN-SPAM guide sets the baseline, and it makes no exception for business-to-business email. Every commercial message must have accurate header information and an honest subject line, identify itself as an ad where applicable, include a valid physical postal address (a P.O. box is fine), and explain how to opt out. Opt-outs must be honored within 10 business days, and the mechanism must work for at least 30 days after sending. Each violating email can cost up to $53,088. Hiring an agency to send for you does not transfer that responsibility.

In the UK, the ICO’s guidance on PECR requires prior consent before sending marketing emails to individuals, including sole traders. The exception is the “soft opt-in”: you collected the address while selling or negotiating a sale, you market only your own similar products, and you offered an opt-out at collection and in every message. Corporate subscribers (companies, LLPs) can be emailed without consent, but you must identify yourself and give a valid address to unsubscribe. EU subscribers fall under similar consent rules, and Canada’s anti-spam law also requires consent.

In practice, the simplest approach is to ask for consent everywhere, with an unchecked box on the sign-up form, and to include a one-click unsubscribe link in every issue.

Mailbox providers add their own rules. Since February 1, 2024, Gmail requires every sender to authenticate with SPF or DKIM and to keep the spam rate below 0.3%; above 5,000 messages a day to Gmail, you also need DMARC and one-click unsubscribe. Setting up these DNS records on your domain takes about an hour and decides whether your emails reach the inbox.

Never buy an email list. Beyond the legal risk, a bought list drives spam complaints up and damages your domain’s reputation for every email you send, including your quotes and invoices.

Which metrics show whether a newsletter is profitable?

For reference, Mailchimp’s benchmarks, based on December 2023 data, give an average 35.63% open rate, 2.62% click rate and 0.22% unsubscribe rate across industries. Ecommerce sits lower, at 29.81% opens and 1.74% clicks.

Open rate is no longer reliable. Apple’s Mail Privacy Protection stops senders from knowing whether a message was opened, which skews the count. Track these instead:

• Click rate, which measures real interest in your content.
• Unsubscribe rate per send: a rise signals a frequency or relevance problem.
• Conversions: quote requests, sales and bookings from the newsletter, using UTM-tagged links in your analytics tool.
• Net list growth: new subscribers minus unsubscribes.

A simple calculation is enough to judge profitability. Assume a list of 1,000 subscribers and a 2.6% click rate, or 26 visitors per issue. If 1 visitor in 10 requests a quote and you close one in three, a monthly newsletter brings in roughly one customer per quarter. Swap in your own rates and compare that customer’s value with the time spent and the tool’s price. Our article on digital marketing ROI details the method.

How to launch your first newsletter in six steps

1. Write the promise in one sentence: for whom, what, how often.
2. Create the sign-up form with an unchecked consent box and a link to your privacy policy. Place it on your most visited pages and on a dedicated landing page.
3. Set up authentication: SPF, DKIM and DMARC for your sending domain.
4. Prepare an automated welcome email that confirms the sign-up and restates the promise.
5. Write three issues ahead, so you do not start under pressure.
6. Schedule a review after six sends: clicks, unsubscribes, conversions.

If time is short, writing and design can go to a freelance writer or an agency. Ask for sample newsletters they have produced, how many issues are included, who manages the list and consents, and who owns the content and the list when the contract ends.

This is general information, not legal advice. For a specific collection or list question, refer to the FTC’s CAN-SPAM guide or the ICO’s guidance.