Bills
Think of your Chart of Accounts as the master list of all your business’s financial categories, your internal filing cabinet. Every dollar that comes in or goes out gets filed under one of these categories, so Xero knows exactly where your money’s coming from and where it’s going. Without it, your Profit & Loss report would just be a big blob of numbers, no structure, no insights, no story. A clean COA helps you understand your business’s true performance, stay compliant, and keep things stress-free come tax time.
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When entering a bill or receipt. You’ll choose the account that best describes what you’re paying for.
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When creating an invoice. Pick the right income category so you can see which parts of your business are earning most.
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When reconciling bank transactions.
Every payment or deposit needs to match a COA category to be included correctly in reports. -
When reviewing reports or GST returns. The COA determines how your Profit & Loss, Balance Sheet, and GST reports are structured.
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When setting up new systems or making business changes. Anytime you add a new service, expense type, or process, it might need a new account or adjustment to your COA.
HOW DO YOU USE THIS?
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Each sale, bill, or expense gets sorted into the right account code to keep reports accurate.
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We stay consistent across time.
The same type of expense always goes to the same category, no renaming, no guessing. -
We review and tidy the COA regularly.
Too many categories cause confusion, so we streamline and merge where it makes sense. -
We set up defaults for regular suppliers.
This speeds up data entry and keeps coding consistent automatically. -
We use it to drive decisions, not just compliance. A clear COA gives insight, like spotting where overspending is creeping in or where income is growing fastest.
WHEN WILL YOU USE IT?
HOW DO WE CATEGORISE BILLS CORRECTLY
You’ve uploaded a bill to Xero and now it’s time to code it.
Here’s how:
1: Read the bill. Ask yourself:
What did I buy? What part of my business is this related to?
2: Choose the most relevant account code from your Chart of Accounts.
Think about the purpose of the expense, not what it physically is.
3: Double check the GST treatment, make sure it matches the bill (some bills include GST, some don’t).
4: Add any tracking categories (if used), like location, team, or project.
5: Attach the invoice to the bill in Xero, this is your audit trail.
6: Save as a draft or submit for approval, depending on your process.
Done properly, this step turns your bill into useful, reportable business data."
IT ALL BEGINS WITH AN IDEA
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IT ALL BEGINS WITH AN IDEA ✦
Common mistakes to avoid:
Coding everything to “General Expenses” or “Admin” – this hides your true costs.
Using inconsistent categories for the same type of bill (e.g. sometimes coding Facebook Ads as ‘Subscriptions’ and other times as ‘Advertising’).
Creating new account codes just to make things sound better—this causes chaos later.
Coding personal expenses as business (this is a big IRD no-no).
Applying GST to bills that don't include GST (e.g. overseas subscriptions).