Voice is who you are. Tone is how you say it today. One should never change. The other should change all the time.
If you've ever sat in a brand workshop where someone said "we want our voice to be playful but professional" and everyone nodded — this is for you. That sentence doesn't mean anything. It mixes up voice and tone, and you've now spent £15k on a guideline document nobody uses.
Voice is the constant
Your voice is the personality your brand has on its best, worst, and most ordinary day. It doesn't shift between channels. It doesn't shift when the news is bad. It's the same on Instagram as it is in a 404 page.
Voice is who you are. Three adjectives. That's all. Pick them and write them down:
- Three things you are. E.g. warm, direct, slightly mischievous.
- Three things you're not. E.g. corporate, jokey, evasive.
- One sound-alike. The brand or person your voice most resembles. Helps writers.
Tone is the variable
Tone is voice adjusted for the situation. A funeral tone and a Saturday-night tone use the same voice, just different volumes.
Your tone shifts depending on three things:
- Who's reading. A first-time visitor vs a returning customer.
- What just happened. A successful checkout vs a failed login.
- How they're feeling. Curious, frustrated, in a hurry.
Voice is the instrument. Tone is the song you're playing.
A 60-second exercise
Open your last five pieces of customer-facing copy — a welcome email, an error page, a homepage hero, a careers page, an Instagram caption. Read them out loud, back to back. If they sound like the same person wrote them, your voice is consistent. If they sound like five different brands, you have a voice problem (not a tone problem).
Then read each one again and ask: is the tone right for the moment? A jokey 404 page is fine. A jokey "your payment failed" page is not. Same voice, different tone.
The cheat sheet
One voice. Many tones. Write your voice in three adjectives. Write your tone per touchpoint: hero, About, support, errors, newsletter, careers. If you do nothing else, do that — and you'll already be ahead of 90% of brands.
