A brand is more than a logo and colours. It is also how it sounds: whether it jokes or stays serious, writes like a friend or like a clerk. Tone of voice is the guide that keeps your brand communication sounding the same no matter who on the team is writing. Below is how to define it, a template you can use today, and tone of voice examples from real brands to steal ideas from.
Key takeaways
- Tone of voice is your brand's voice in writing: not what you say, but how you say it. Voice is the stable personality, tone is how that voice bends by situation (an order confirmation reads differently from a complaint reply).
- According to the State of Brand Consistency report by Lucidpress from 2019, consistent brand presentation across channels can lift revenue by up to 33 percent, up from the 23 percent its 2016 study reported.
- Nielsen Norman Group maps tone on four dimensions: formal to casual, serious to funny, respectful to irreverent, matter-of-fact to enthusiastic. Their test showed that even a small shift in tone measurably changes how readers perceive you.
- The practical minimum: place your brand on those four dimensions and write three lines in the form "we are X, but not Y". Ten minutes gets you a usable base.
- Examples across the spectrum: Mailchimp sounds warm and plain-spoken, Oatly irreverent and playful, a bank stays measured and formal. No single tone is "better", each fits a different brand.
- Honestly: a tone of voice document nobody uses is wasted time. Five real examples on the wall beat a thirty-page brand book in a drawer.
What is tone of voice, and how is it different from brand voice?
Tone of voice is the way a brand communicates in words: not what it says, but how it says it. The same fact can sound dry and bureaucratic or human and warm, and the customer feels that difference before they even read the content. In practice it pays to separate two terms people mix up. Brand voice is the stable personality: it stays the same whether you write about a product or reply to a review. Tone is how that voice flexes with the moment.
Think of it like a person. Your character does not change, but you speak differently at a wedding and at a funeral. A friendly brand stays friendly even when handling a complaint, it just dials down the jokes and adds empathy. That is why a rule like "always be funny" backfires. The goal is a voice that sounds like one person, even when ten people from different departments sit behind the keyboard.
Why is it worth defining a brand tone of voice?
Because inconsistency costs money and trust. When your website sounds polished, your emails sound like a legal notice and your Instagram sounds like a different company, customers subconsciously sense something is off. According to the State of Brand Consistency report by Lucidpress from 2019, presenting a brand consistently across channels can increase revenue by up to 33 percent, while the same study three years earlier put it at 23 percent. There is no magic behind that number: people buy from brands they trust, and trust grows when a brand behaves like one coherent character.
The second reason is purely practical: it saves time. When the team has clear guardrails, nobody debates how to phrase every post or email from scratch. A new copywriter, an agency and customer support all pull in the same direction. At NORDLYS, on creative direction work, we see it on the first round of copy: with a defined tone, feedback is about the content, without it half the notes argue about a style nobody ever agreed on.
The third reason is differentiation. A visual can be copied in an afternoon, a voice cannot. The way you speak is one of the few things a competitor cannot simply take from you.
How do you define a tone of voice step by step?
Start with personality, not a list of banned words. First decide what your brand is like as a person, then worry about vocabulary. The method we use fits on one page and you can run it today.
1. Place your brand on four dimensions. Nielsen Norman Group describes four dimensions of tone of voice: formal to casual, serious to funny, respectful to irreverent, matter-of-fact to enthusiastic. Rate your brand on each (say, a 1 to 5 scale) and you have a first rough profile. Their study also found that even a small move along these axes measurably changes the reader's impression, so this is not cosmetic.
2. Write three "we are X, but not Y" lines. This is the fastest way to sharpen a voice, because the Y kills the most common misreading. For example: we are friendly, but not chummy. We are confident, but not arrogant. We are simple, but not dumb. Three such lines tell a copywriter more than a paragraph of adjectives.
3. Show it with an example, not a definition. Nothing works better than the same sentence in two tones. Take a shipping notification:
- Matter-of-fact, formal: "Your order no. 4821 has been dispatched. Estimated delivery: 2 business days."
- Warm, human: "Done, your order is on its way. It should reach you within two days. Our packer nailed this one."
- Both carry the same information, but each belongs to a different brand.
Build five such pairs for real situations (welcome email, complaint, social post, error message, newsletter) and the team gets it faster than from any manifesto. That is exactly how copy takes shape for Instagram Reels for businesses, where the voice gets a second and a half to land.
What do good tone of voice examples look like?
They sit all over the spectrum, and that is the point. Mailchimp is a textbook warm, plain-spoken voice: helpful and human, with just enough humour that it never gets silly, and its public content style guide made that approach famous. Oatly goes the other way, irreverent and playful, with packaging copy that reads like a stand-up bit, which fits a challenger brand that wants a smile, not a manual. Duolingo pushes playfulness even further on social media, leaning into its owl mascot.
At the other end stand brands that a measured, restrained tone suits better. A bank or an insurer that cracked jokes about your money would feel untrustworthy, so it holds a formal, precise voice and comes across as a partner, not a buddy. No approach is universally "better": the better one is whatever fits what you sell and who you sell it to. The same spectrum plays out on the Slovak market, from bookshops that write like a friend to banks that stay deliberately formal.
Where it breaks most often is B2B. Companies selling to other companies hide behind impersonal, corporate language, even though a regular human sits on the other side. How to get out of that trap, and why a human voice works even in serious business, we covered in our piece on LinkedIn content for B2B.
When is defining a tone of voice not worth it?
When you turn it into a document nobody opens. This is our most honest objection, and we say it to clients who ask us for a brand book: a thirty-page brochure about brand voice is usually expensive decoration. If you have to choose, five concrete examples taped above the copywriter's desk beat a perfect PDF in a cloud folder nobody visits.
It is also not worth it when you are one or two people writing everything yourselves. Then the tone lives in your head, and formalising it is premature optimisation. A defined tone of voice starts to pay off the moment more people or an outside agency create content, when there is a real risk everyone writes their own way.
And the last trap: overdoing it. A brand that tries too hard to be witty and edgy tends to be cringe precisely when the customer has a problem. A strong voice is not a loud voice. Sometimes the best tone is the one you do not notice, because it simply fits.
Frequently asked questions about tone of voice
What is the difference between tone of voice and brand voice?
Brand voice is the stable personality of the brand, tone is how that personality adapts to the situation. The voice stays the same on your website and in a complaint reply, only the tone changes: more upbeat here, more empathetic there. Put simply, voice is character, tone is mood.
How long does it take to define a tone of voice?
A usable base takes a few hours: the four dimensions, three "we are X, but not Y" lines and five sample pairs for real situations. A full verbal manual for a large brand is days or weeks of work, but most companies do fine without it as long as they nail that quick base.
Does a small business need its own tone of voice?
Yes, though it does not have to be a formal document. Even a one-person business has a voice, it is just unconscious for now. The moment someone other than the owner starts writing copy, it pays to write it down, otherwise the brand splinters into as many voices as it has contributors.
How do you change tone across channels without losing consistency?
Keep the same voice, change only the tone. You can be more measured on LinkedIn and more relaxed on Instagram, but the personality stays the same. A useful rule: if you would never say a line out loud to a customer's face, it does not belong on the channel either.
If you are figuring out how your brand should sound, or feel like every channel speaks in a different voice, get in touch. We will look at your copy and tell you straight whether you need a full verbal manual or just one page of rules and a few good examples.
