Most businesses can tell when something sounds off-brand. They can't always say why. A blog post reads a little too corporate. A social caption feels like it was written by someone else entirely. An email lands stiff when the business is usually warm and direct.
That instinct is useful, but it's not a system. Without something written down, brand voice lives in one person's head, and it drifts the moment someone else writes a page, a post, or an email. This is how you get a website that sounds confident and a Facebook page that sounds like a completely different company.
We wrote about why a consistent brand voice matters previously. This guide covers the part that usually gets skipped: how to build a brand voice guide, and how to check new content against it so it stays consistent.
Start with the business, not the writing
Before anyone writes a word of copy, get clear on what the business is, underneath the marketing. A few questions worth sitting with:
- What is this business here to do, once you set aside the mission-statement version? Why would someone pick it over the alternative down the road?
- What's changed recently, and why? What isn't working anymore, and what's worth keeping?
- What's the general energy of the business? Formal and precise? Warm and personal? Direct and no-nonsense?
- How does the business want to be described by the people who use it?
- How does it refer to the people it serves? Clients? Customers? Guests? Patients? The word matters more than it seems.
These aren't creative questions. They're closer to an audit. The answers should come from how the business operates day to day, not from how you'd like it to sound.
Check it against your audience, not just your own preference
A brand voice that sounds great internally can still fall flat if it doesn't match how your audience talks and what they respond to. Before locking anything in, look at:
- How your best clients describe you, in reviews, testimonials, or conversations
- The language they use to describe their own problem, not the language you use to describe your solution
- Whether they respond better to something more formal or more conversational, based on how they engage with your existing content
If your audience is precise and formal in how they communicate, a brand voice full of casual asides will feel like a mismatch, no matter how well written it is. The goal isn't to sound impressive. It's to sound like something your audience trusts.
Look at competitors, but only to find the gap
A quick look at how competitors present themselves is useful, not to copy them, but to see where the field is crowded. If everyone in your sector sounds cautious and corporate, a direct, plain-spoken voice will stand out. If everyone is already trying to sound edgy, that space is taken, and a calmer, more substantive voice might be the differentiator.
Define the voice in specific terms, not vague adjectives
"Professional but friendly" describes almost every business and therefore describes none of them usefully. A brand voice guide needs to be specific enough that two different people writing for the business would land in roughly the same place.
A useful way to do this: pick three to five traits that genuinely describe the business, and for each one, write what it sounds like and what it doesn't. For example:
Direct. Says what it means in the fewest words that still sound like a person. Does not pad sentences to sound more official or hedge with "might" and "could potentially."
Warm. Talks to the reader like a person, not a segment. Does not tip into overly casual or joke at the expense of clarity.
Two or three traits handled this way, with a clear sound-like and doesn't-sound-like for each, are worth more than a long list of adjectives nobody can act on.
Write it down as a short, usable reference
The goal isn't a lengthy brand document nobody rereads. A single page covering the traits, a few example rewrites (a generic version next to the on-brand version), and any hard rules (words the business avoids, how it handles contractions, whether it uses exclamation points) is enough. A brand voice guide only works if whoever is writing has it open while they write.
Check new content against it before it goes out
Once the voice is defined, the ongoing job is holding content to it. A few questions worth asking on every piece before it's published:
- Does this sound like the business talking, or could it be swapped onto a competitor's page without anyone noticing?
- Does it match the tone of your best existing content, or does it feel like a different writer entirely?
- Does the tone match how formal or relaxed this particular audience expects a business like this to sound?
- Is there a generic phrase that could be swapped for something more specific to how this business talks?
If a sentence could be dropped into a competitor's website without anyone noticing, it isn't doing its job yet.
Stay consistent, not rigid
A defined brand voice isn't a cage. Businesses evolve, and voice can evolve with them. The goal is that changes happen deliberately, not because five different people wrote five different pages without checking against anything. Revisit the guide occasionally, especially after a rebrand, a new offer, or a shift in audience, but don't rewrite it every quarter chasing a trend.
When it's worth bringing in help
Defining a voice is doable internally. Keeping it consistent across a growing website, a blog, social media, and email, written by different people over months or years, is where it usually breaks down. If that's where you're stuck, that's exactly what our copywriting service is built to solve.
