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Letterhead
Logo, company details and a clean writing area. Used for letters, contracts and formal mail.
Brand OS Portal
Letterhead and business document templates: the set every company needs.
A letterhead and a few matching templates make every letter, invoice and report look like it came from one company.
Free: your brand in 3 real designs, in 48 hours.
Most companies need six document templates: a letterhead, an invoice, a proposal, a report, a one-page sheet and a slide deck. They share one logo spot, one grid, the same two fonts and the same colours.
Make them once as locked files. People then write in them without changing the layout. Send letters and invoices as PDF so they look the same everywhere.
By Vedran Obradović · Updated 7 November 2026
The 6 documents most companies need.
Start with these. Add more when the team asks.
Doc 2
Invoice
Your logo, clear numbers, payment details and room for notes. It is often the page a client sees last.
Doc 3
Proposal
Cover, summary, plan and next step. See the business proposal design template.
Doc 4
Report
Cover, contents, headings and a place for charts and tables.
Doc 5
One-page sheet
Sales or case study. See the sales one-pager and the case study one-pager.
Doc 6
Slide deck
Title, text, image, numbers and a closing slide. See the company PowerPoint template.
A letterhead spec you can copy.
Give this to whoever builds it, or use it to check what you have.
Letterhead spec
PAGE: A4 or US Letter, portrait LOGO: top left, vector file, with the clear space from the logo rules COMPANY DETAILS: small text in the footer: legal name, address, registration number, email, website FONTS: brand heading font for the company name, brand text font for the body (11 pt), with a free system font as backup COLOURS: logo colours and one dark text colour, nothing else MARGINS: wide on the left and top, and a quiet footer WRITING AREA: leave a clean box with room for the date, the name and the body FILES: a Word or Google Docs template for writing, and a PDF for sending CHECK: print once and look at it on paper
The letterhead needs a vector logo. If you are not sure what you have, read logo files: what you need and logo usage guidelines.
Free tool
Are your documents ready to carry your brand?
A letterhead is as good as the brand under it. Answer a few short questions. You get a brand score and the top thing to fix. It is free.
Rules all six documents share.
This is what makes a set look like one company.
| Rule | What to do | Why |
|---|---|---|
| Logo spot | Same place on every document | People learn where to look |
| Grid | Same margins, same column sizes | The set feels calm |
| Fonts | Two brand fonts and one safe backup | Looks right on any computer |
| Colours | Brand palette with one accent | Stops colour drift |
| Footer | Same line of company details | Looks official |
| File names | Client, document, date, version | No hunting in folders |
These rules come from your brand. Not written yet? Start with one-page brand guidelines, or read what to include in brand guidelines.
Brand OS Portal
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How to stop documents from drifting.
Documents go off brand the same way as posts. Someone changes a font, someone copies an old file.
- One folder, one owner, with current templates in it
- Lock the brand parts in the template, so people change words, not layout
- Send PDFs, not editable files
- Delete old copies when a template is updated
- Tell new hires where the templates live. See brand onboarding for new hires
With a Brand OS Portal, my clients keep their documents next to the logo files and rules, so the team makes them itself, in the brand. A designer is still the right call for brand strategy and a new identity. Brand OS Portal is for the daily work after that.
Document templates checklist.
Tick what is true. Ticks stay on this device.
0 of 8 done
For more on keeping everything in one place, see brand asset management for small teams.
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Same brand, from letter to post.
This is a real tool from a real Brand OS Portal, on the MTG brand. Documents and posts should feel like one company. Change the words and watch the design hold.
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Straight answers.
What is a letterhead?
A page design for letters with your logo and company details at the top or bottom, and a clear writing area.
What should be on a company letterhead?
Your logo, legal name, address, registration number, email and website. Keep it clean and small.
What business documents need a template?
Most companies need a letterhead, invoice, proposal, report, one-page sheet and slide deck.
Should I send letters as Word files or PDFs?
Send PDFs. They look the same on every computer and nobody changes them by accident.
How do I keep business documents on brand?
Lock the logo, fonts and colours in a template, keep templates in one place with one owner and delete old copies.
One more thing.
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