Categories that make sense for Australian tax time

Most people overthink their first category list. They build a 30-row taxonomy on day one, then quietly stop using it by week three. The version that survives the year is small, ATO-shaped, and grows only when the receipts force it to.

Start with the categories the tax office cares about

The ATO splits work-related expenses into a handful of buckets on the individual return: vehicle and travel, clothing and laundry, self-education, tools and equipment, home office, union and professional fees, gifts and donations, "other". For sole traders, you've got cost of goods, rent, utilities, software, marketing, accounting, motor vehicle, depreciation. Build your starter list from those, not from how your purchases feel.

The reason this matters: at tax time you're filling in the return (or handing the receipts to an accountant), and the categories on the return are the categories your evidence needs to roll up to. If your category list doesn't map cleanly, someone — you or your accountant — does the mapping by hand at the worst possible time of year.

A starter set for an employed Australian

If you're a PAYG employee with a few work-related deductions, six categories cover almost everything:

• Tools & equipment — anything from a $40 hi-vis vest to a $900 laptop. The ATO's $300 immediate-deduction rule kicks in here.
• Self-education — courses, books, conference tickets that relate to your current job.
• Home office — the bits the fixed-rate method doesn't cover automatically: ergonomic chair, monitor, that sort of thing.
• Vehicle & travel — fuel, parking, tolls, accommodation when travelling for work. Logbook still required.
• Professional fees — union dues, professional registration, industry body memberships.
• Other work-related — the catch-all. Empty most years; useful when something genuinely doesn't fit.

A starter set for a sole trader

If you're running an ABN and lodging via the Business and Professional Items schedule, the buckets shift:

• Cost of goods — anything you bought to resell or to deliver client work.
• Software & subscriptions — SaaS, design assets, hosting. Tends to be the biggest line for service businesses.
• Office & supplies — printer ink, stationery, the everyday stuff.
• Motor vehicle — kept separate from "travel" because the ATO treats them differently.
• Travel & accommodation — flights, hotels, work-trip meals.
• Marketing — ad spend, sponsored content, business-card printing.
• Accounting & legal — your accountant, BAS agent, contracts.
• Utilities & rent — if your business pays separately. Skip if you're using the home-office shortcut method.

The $75 GST rule shapes how you treat small purchases

For GST input tax credits, the ATO accepts that purchases under $75 (GST-exclusive) don't need a full tax invoice — a regular receipt is enough. Above $75, you need an actual tax invoice with the seller's ABN. That doesn't affect categorising, but it does affect what you keep: small receipts can be casual; bigger ones need to be the proper version.

Worth knowing because it changes the conversation when a vendor only emails a basic receipt for an $80 purchase. Ask for a tax invoice in that situation; don't argue about it under $75.

Don't add a category until you've used "Other" twice

Resist the urge to make a new category every time something doesn't fit. Park it in "Other" first. If two different "Other" receipts within a month feel like the same shape, that's the moment to add a category — and it'll be a category that earns its keep.

Tags are for the cross-cutting bits

Categories are the primary axis. Tags are the second axis: per-client, per-project, per-trip, per-tax-year-edge-case. A receipt categorised as "Travel" can be tagged with the project name, so a year later you can filter Travel by project and reconstruct the trip. Don't try to make categories do this — categories that double as tags get unwieldy fast.

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