How to Build a Brand Voice Document
Create a brand voice document your team will actually use. Covers tone attributes, do/don't examples, audience mapping, and enforcement strategies.
Every brand claims to have a "voice." Few have it documented in a way that writers can actually follow. The typical brand voice document says things like "we're friendly, professional, and innovative" — which describes every B2B company on the internet and helps no writer make a single better word choice.
A useful brand voice document is specific enough that two different writers, given the same topic, would produce content that sounds like it came from the same brand. Here is how to build one.
What a Brand Voice Document Actually Is
A brand voice document defines how your brand communicates in writing. Not what you say (that is your content strategy), but how you say it. It covers:
- Tone attributes — the 3-5 characteristics of your writing personality
- Do/don't examples — concrete illustrations of each attribute
- Vocabulary preferences — words you use and words you avoid
- Audience-specific adjustments — how tone shifts for different audiences
- Channel-specific guidelines — how voice adapts across formats
The document should be specific enough to resolve debates. When two writers disagree about whether a sentence is "on brand," the voice document should provide the answer.
Step 1: Audit Your Existing Content
Before defining your voice, analyze what you already have. Pull 10-15 pieces of published content that your team considers representative of the brand at its best. Then pull 5 pieces that feel "off."
For each piece, note:
- Tone: Formal or casual? Serious or playful? Direct or diplomatic?
- Sentence structure: Short and punchy or long and detailed?
- Vocabulary level: Simple or sophisticated? Jargon-heavy or plain language?
- Perspective: First person (we), second person (you), or third person?
- Personality: Does the brand feel like a teacher, a friend, a consultant, a colleague?
Patterns will emerge. The "best" content shares characteristics. The "off" content violates them. Those patterns are the raw material for your voice document.
Step 2: Define 3-5 Tone Attributes
A tone attribute is a single adjective that describes one dimension of your brand's personality. Three to five attributes are enough to be distinctive without being overwhelming.
How to choose attributes:
Each attribute should be specific enough to guide word choices. "Professional" is too vague — every brand is professional. "Confident but not arrogant" gives writers something to work with.
Example tone attributes for a B2B SaaS brand:
| Attribute | What It Means | What It Does Not Mean |
|---|---|---|
| Direct | Get to the point. No filler. Lead with the insight. | Blunt, rude, or dismissive |
| Knowledgeable | Show expertise through specificity, not jargon | Academic, condescending, or lecturing |
| Practical | Focus on what the reader can do, not theory | Oversimplified or lacking depth |
| Confident | Take a clear position. Avoid hedging language. | Arrogant, dismissive of alternatives |
| Conversational | Write like you are talking to a smart colleague | Slangy, unprofessional, or too casual |
The "What It Does Not Mean" column is just as important as the definition. It prevents misinterpretation and draws clear boundaries.
Step 3: Create Do/Don't Examples
Abstract attributes become concrete when you show examples. For each attribute, provide at least three do/don't pairs drawn from your actual content.
Attribute: Direct
Do: "The review takes 30 seconds. Paste your content, select a reviewer, and click Review."
Don't: "When you're ready to begin the review process, you'll want to navigate to the review section where you can begin by pasting your content into the designated field."
Attribute: Knowledgeable
Do: "Flesch-Kincaid scores above 60 work best for B2B blog content. Below 50, you lose readers."
Don't: "Readability is very important for content and there are many ways to measure it."
Attribute: Conversational
Do: "You probably have more content than you think. Start with an audit."
Don't: "Organizations should commence content strategy initiatives with a comprehensive audit of existing assets."
These examples do more work than any abstract definition. Writers can reference them when they are unsure whether a sentence matches the voice.
Step 4: Build a Vocabulary Guide
A vocabulary guide lists preferred terms and banned terms. This solves the problem of different writers using different words for the same thing.
Structure it as a simple reference table:
| Instead of | Use | Reason |
|---|---|---|
| Utilize | Use | Simpler, more direct |
| Leverage | Use, apply | Overused business jargon |
| Cutting-edge | Modern, current | Cliche |
| Synergy | Collaboration, integration | Corporate jargon |
| End-user | Customer, user | More human |
| Pain point | Challenge, problem | Overused in B2B |
Also document product-specific terminology:
- "AI reviewer" not "AI review tool" or "review bot"
- "Content score" not "quality score" or "content grade"
- "Review" not "audit" or "check" when referring to the product
Vocabulary consistency compounds over time. Hundreds of pieces using the same terms build brand recognition that inconsistent terminology never achieves.
Step 5: Map Voice to Audience Segments
Your voice stays consistent, but tone shifts depending on who you are talking to. A technical buyer and a marketing director both get the same brand personality, but the vocabulary and emphasis change.
| Audience | Tone Adjustment | Example |
|---|---|---|
| Technical buyers | More specific, include technical details | "The API returns JSON with per-criteria scores and weighted totals" |
| Marketing leaders | Focus on outcomes and strategy | "See which content types score highest and double down on what works" |
| Content writers | Practical, empathetic, tool-focused | "Paste your draft, get a score in 30 seconds, and improve before your editor sees it" |
| C-suite executives | ROI-focused, concise, data-driven | "Teams using structured review processes publish 40% more content with fewer revision cycles" |
Step 6: Define Channel Adaptations
Your brand voice adapts to the channel without losing its core identity.
Blog posts: Full expression of all tone attributes. Longer examples. Detailed explanations.
Email campaigns: More conversational. Shorter sentences. Stronger CTAs. Same personality, tighter format.
Social media: Most casual end of the spectrum. Personality shines through in brevity. Still direct and knowledgeable.
Help documentation: Practical attribute dominates. Step-by-step instructions. Less personality, more utility.
Sales collateral: Confident attribute leads. Data-driven. Focus on outcomes. Same voice, different emphasis.
Step 7: Make It Enforceable
A brand voice document that lives in a forgotten Google Doc is decoration. To make it useful:
Keep it short. If the document is longer than 5 pages, nobody reads it. One page of tone attributes with examples, one page of vocabulary, one page of channel guidelines.
Include it in onboarding. Every new writer, freelancer, or agency partner gets the voice document before writing their first piece.
Reference it in feedback. When reviewing content, cite specific sections: "This paragraph violates the 'Direct' attribute — see example 2 in the voice doc."
Score against it. Include brand voice as a weighted criterion in your content review process. Content that does not match the voice gets scored lower and receives specific feedback referencing the document.
Update it annually. Brands evolve. Review the document once a year and update examples to reflect current content.
Key Takeaways
- A brand voice document defines how your brand sounds in writing, not what it says
- Define 3-5 tone attributes with clear definitions and "what it does not mean" boundaries
- Do/don't examples are more useful than abstract descriptions
- Build a vocabulary guide with preferred and banned terms
- Map tone adjustments by audience segment and channel
- Keep the document short, include it in onboarding, and score content against it
The test of a good brand voice document is simple: can a freelancer who has never met your team produce content that sounds like your brand? If the answer is yes, your voice document is working.