How to Customise an Invoice Template (Logo, Colours & Fields)

A downloaded invoice template is generic on purpose. To make it work for your business — and to look like a professional rather than someone who grabbed a free file off the internet — you need to customise it. The good news is that this takes ten minutes and a clear checklist, not design skills.

This guide walks through exactly what to change, in order, whether you are working in Word, Excel or an online tool. If you do not have a template yet, start with one from our free invoice template library and follow along.

Step 1: Add your logo

Your logo is the single biggest signal that an invoice is real. Place it at the top, usually top-left or centred, at a sensible size — large enough to read, small enough not to dominate the page.

• Use a clean file. A PNG with a transparent background sits neatly on a white invoice. Avoid screenshots or low-resolution images that look fuzzy.
• No logo yet? Set your business name in a slightly larger, bolder font as a text-based wordmark. It looks deliberate and professional.
• Keep it consistent. Use the same logo on quotes, invoices and receipts so your paperwork feels like one brand.

Step 2: Choose your colours

Colour is where most homemade invoices go wrong — either no colour at all, or too much. The aim is a single accent colour used sparingly.

• Pick one brand colour and apply it to the header bar, the section headings and perhaps the total line. That is enough.
• Keep the body black on white. Line items and figures must be easy to read. Coloured text on the detail rows hurts legibility.
• Mind the contrast. If you put white text on a coloured header, make sure the colour is dark enough to read against. Light pastels with white text are unreadable.

If you are not sure which colour to use, match it to your logo. Consistency reads as professionalism even when the palette is simple.

Step 3: Edit the right fields

Every invoice has a core set of fields you must fill in correctly. Work through them top to bottom.

1. Your business details: trading name, ABN (or equivalent business number), address, email and phone.
2. Client details: their business or contact name and address. Getting the client's legal name right matters for their records and yours.
3. Invoice number: use a sequence you can track, such as INV-0001. Never reuse a number.
4. Issue date and due date: state both. "Due on receipt" or "Net 14" should be explicit, not implied.
5. Line items: a clear description, quantity, unit price and line total for each.
6. Subtotal, tax and total: show GST separately if you are registered for it.

If you are registered for GST, your invoice has extra labelling requirements — our tax invoice template already includes them. For a full breakdown of every mandatory field, see what to include on an invoice.

Step 4: Add your payment details

An invoice with no clear way to pay it gets paid late. Make the payment section unmissable.

• Bank transfer: account name, BSB and account number, clearly laid out.
• Payment reference: ask clients to use your invoice number as the reference so you can reconcile payments.
• Other methods: if you accept cards or a payment link, state them too. Fewer barriers means faster payment.
• Terms: a short line on late fees or payment expectations, if you use them.

Step 5: Remove what you do not need

Templates often include fields you will never use — a shipping address for a service business, a "PO number" line you do not work with, columns for discounts you never give. Delete them. A lean invoice is easier to read and looks more deliberate.

Be careful when removing rows in Word tables or Excel sheets, though — deleting a cell can break the layout or a formula. In a spreadsheet, clear the contents rather than deleting the whole row if a formula depends on it. (More on spreadsheet quirks in our Google Docs and Sheets invoice guide.)

Step 6: Save a reusable master

Once your template is branded and tidy, save it as a master file you never send. For each new invoice, duplicate the master, fill in the client and line items, then export a PDF to send. This keeps your branding consistent and stops you accidentally overwriting last month's invoice.

For why PDF is the right format to send, see our comparison of Word vs Excel vs PDF invoice templates.

A faster way: skip the manual customising

Customising a static template once is fine. Doing it for every client, every month, then exporting and double-checking the totals, gets repetitive. An online tool stores your logo, colours and business details once and reuses them automatically on every invoice — and does the maths for you.

You can fill in our invoice template directly in the browser, or use the free invoice generator to brand and send in one go. To decide which approach fits you, read invoice template vs invoice generator, and if you are starting from zero, how to make an invoice covers the basics.

FAQs

What size should my logo be on an invoice?

Aim for a logo around 150 to 250 pixels wide in the header — big enough to be clearly legible but small enough that it does not crowd your business details. Keep the file high resolution so it stays crisp when the invoice is printed or viewed at full size.

Can I change the fonts in an invoice template?

Yes, but stick to one or two clean, common fonts. Avoid decorative fonts for figures and line items — readability matters more than personality on an invoice. If you send PDFs, the font is locked into the file, so it will look the same on the client's screen regardless of what they have installed.

Do I have to use my brand colours?

No. A plain black-and-white invoice is perfectly professional. Colour is optional polish. If you do use it, one accent colour used consistently looks far better than several competing ones.

How do I keep my customised template consistent across invoices?

Save a branded master file and duplicate it for each invoice rather than editing the same file repeatedly. Better still, use a tool that stores your details once — our templates and generator both keep your branding consistent automatically.