Mailchimp wrote down exactly how it sounds, and then it put the guide online for anyone to read. Its Content Style Guide has a whole section on voice and tone (Mailchimp), and one line from it is worth pinning above your desk: "You have the same voice all the time, but your tone changes."

Voice and tone are two different things

The guide draws a clear line between the two. Voice is the part that stays put. It's the personality of the brand, and Mailchimp describes theirs in four parts: plainspoken, genuine, translators and dry humor (Mailchimp). (That's their American spelling, and we've kept it because it's their word.)

Tone is the part that moves. It changes with who you're talking to and how they're feeling. The guide puts it like this: "You wouldn't want to use the same tone of voice with someone who's scared or upset as you would with someone who's laughing."

It also compares tone to something you already do. You talk one way with close friends and another way with your boss. You're still you in both conversations. Your words, pace and jokes shift, but your friends wouldn't mistake you for a different person.

Why writing it down matters

When it's just you running the business, your voice lives in your head. You know how you'd answer a customer email, caption a launch or apologise for a late order.

The trouble starts when someone else writes for you. A new hire answering customer emails. A freelancer writing your product pages. A friend helping with social posts during a busy month. Or you, on a tired day, rushing out a reply. Without anything written down, each of them guesses. Over time those guesses pile up, and your brand starts to sound like a few different businesses sharing one logo.

A short written guide gives every writer the same starting point. It doesn't need to be clever. It needs to answer two questions: what do we always sound like, and how do we adjust for the person in front of us?

Picture this. A customer's payment has just failed at checkout, and the error message on screen is cheery and jokey. Your brand might be playful, and that might be lovely on your homepage. To someone who's stuck and worried about their money, it can feel like you're laughing at them.

The voice could stay exactly the same there. What needed to change was the tone, and it was never written down that it should.

That's the useful part of Mailchimp's approach for a small brand. You don't need a fifty-page document. You need your voice in a few words, plus a note on the moments where you'd soften, slow down or drop the jokes. Complaints, refunds, errors, delays and bad news are good places to start.

The honest limit

A style guide doesn't make anything consistent on its own. If it never gets opened, it's just a file in a folder, and a long guide is easy to ignore. So keep yours short enough to read in one sitting and specific enough to settle a quick question about wording. Then actually send it to whoever writes for you, and point to it when something sounds off.

One thing to do this week

Open a blank page and write four words that describe how your brand sounds at its best. Mailchimp's are a useful model because they're specific. "Plainspoken" tells a writer far more than "friendly" does.

Under that, list a few moments when a customer might be stressed: a late delivery, a refund request, a broken link, a mistake on your side. For each one, write a sentence on how your tone should shift. Calmer? Shorter? No jokes at all?

That one page is a start. Share it with anyone who writes for your brand, and read Mailchimp's guide for ideas on what to add later.

Could you describe your brand's voice in four words?