Every small business reaches the same milestone: a customer asks for a proper invoice, or a supplier needs your details on headed paper, and suddenly you're nudging a logo around a blank page at ten o'clock at night. Templates solve that. Set them up once, save them properly, and every letter, invoice and compliment slip that leaves your business will look deliberate rather than improvised.

Why templates are worth the initial effort

A template is simply a master document with everything that never changes already in place — your logo, your colours, your contact details, your margins. You open it, drop in the variable content, and export. The savings are obvious, but the bigger win is consistency. When your invoice, your letterhead and your compliment slip all share the same typeface and spacing, customers unconsciously read your business as organised and established. That matters enormously when you're competing against larger firms.

There's a practical benefit too. Templates stop the slow drift that happens when everyone in a business creates documents from scratch: three versions of your address, two shades of your brand blue, and a phone number that changed last spring but still appears on half your paperwork.

Nail down your brand basics first

Before you open any design software, write down the handful of decisions that will govern everything else. You only need one page:

• Logo files: keep a high-resolution version with a transparent background, plus a single-colour version for faxed or photocopied documents.
• Colours: note the exact values — CMYK builds for print, hex codes for anything screen-based. "That blue" is not a specification.
• Typefaces: choose one for headings and one for body text, and stick to them. If your chosen font isn't installed on every computer you use, pick a safe alternative for documents you edit in a word processor.
• Clear space: decide how much empty room the logo needs around it, and never crowd it.

Building the letterhead

Set your page to A4 (210 × 297mm) and add 3mm of bleed if the design will be professionally printed — that's the extra sliver of artwork beyond the trim edge that stops white borders appearing when the paper is cut. For documents you'll only ever print in-house, you can skip the bleed.

Keep margins generous: 15–20mm on all sides. Most home and office printers can't print to the very edge of the sheet, so anything closer than 10mm risks being cropped. Build the header as a locked layer containing the logo and your strapline, and the footer with your address, phone number, email and website.

For body text, 10–11pt with comfortable line spacing is the sweet spot. Set your paragraph and heading styles properly rather than formatting each one by hand — it takes five minutes and saves hours later. When you're happy, save the file as a template and export a print-ready PDF with fonts embedded.

Invoices that get paid without a chase

An invoice is a working document, not a marketing piece, so prioritise clarity over decoration. It should carry your business name and address, a unique sequential invoice number, the invoice date, a clear description of the work, the amount due, and your payment terms — "Payment due within 14 days" is far more effective than leaving it vague.

If you're a limited company, company law requires your registered name, company number and registered office address on your invoices and business letters. If you're VAT registered, you'll also need your VAT number and the VAT breakdown shown separately. Include your bank details, sort code and account number, and consider adding a short note about late payment interest to discourage stragglers.

Build the invoice number as an automatic field that increments, so you never duplicate one. Duplicate numbering causes real headaches at year end.

Compliment slips and the small extras

Compliment slips are usually a third of A4 — roughly 210 × 99mm — and they earn their keep when you're posting samples, refunding a customer or thanking someone for a referral. Handwrite a line on them; that small personal touch is exactly what a printed email can't replicate.

While you're in the swing of it, set up templates for the other documents that recur: quotes, purchase orders, delivery notes and packing slips. Give each one the same header and footer so the whole set feels like a family.

Keep your template library tidy

Store your masters in one clearly named folder, separate from the documents you create from them. Use a naming convention you'll still understand in a year — something like Letterhead_Master_v2_2025 — and never overwrite the master with a completed document.

Lock the layers you don't want moved, and password-protect the template if others in the business use it. Revisit the whole set once a year: check your phone numbers, bank details and registered address, and update your colour values if anything has shifted. Fifteen minutes of housekeeping annually will keep your paperwork looking sharp and your brand consistent for years.