Brand voice: an agency can write in it, you must own it

Key takeaways

Brand voice ownership means the business decides how it sounds, what it claims and what it never says. Agencies, copywriters and outsourced service teams can write in that voice, often very well. But the voice guide, the approval of new claims and the final say on tone stay with you. A one-page guide is enough for most SMEs.

• The business defines its voice; providers write within it.
• Keep a one-page voice guide with examples.
• New claims and promises need internal approval.
• Review a sample of outsourced writing each month.

Why must the business own its voice?

Because voice is how customers recognise you across every channel, and claims made in your name are your legal responsibility. If each provider invents its own tone, your brand fragments. If a provider makes a claim you cannot support, advertising rules hold you responsible.

• Which business processes should you never outsource?
• Should you outsource brand strategy?

What goes in a voice guide?

One page, with examples rather than adjectives.

• Three words that describe how you sound.
• Words and phrases you use and avoid.
• Example good and bad sentences.
• Claims you can make and their evidence.
• Topics to always escalate.

• Expert content: a writer drafts, the expert signs off
• Outsourcing red lines: write them down before you sign

How do agencies and teams write in your voice?

Give them the guide, a set of your best past examples and early feedback. Approve the first few weeks of work closely, then move to sampling. Customer service teams need the voice too, in their templates and scripts.

• Should you outsource social media to stay consistent?
• Service standards: you set them, a provider meets them

What about claims and promises?

Advertising rules expect you to hold evidence for objective claims before you make them. Any new claim, such as 'fastest in the area' or 'guaranteed results', should be approved by someone who can confirm it is true. Providers should flag these rather than invent them.

• AI rules for your business: who sets them?

What does this look like in practice?

A pattern we see: a business's website, social posts and customer emails sound like three different companies because three providers write them. A one-page guide shared with all three brings them into line within a month.

• See client work
• Social Media Marketing for UK businesses

Brand voice checklist

• Write a one-page voice guide.
• Share it with every provider.
• Approve new claims internally.
• Sample outsourced writing monthly.
• Update the guide yearly.

• Closing sales: can someone else close your deals?
• Marketing budget: agencies spend it, you decide it

Next step

Collect five pieces of writing from different providers and read them side by side. If they sound different, start the voice guide.