Travel Expenses for Business

Business travel is where good intentions meet blurry lines. The conference was real, but so were the beach days afterwards. Your spouse came along. The flights, the hotel and the dinners all went on the business card. Come tax time, someone has to decide what was business and what was holiday — and the further from the trip that decision happens, the worse it goes.

What generally counts as business travel

Where you travel for the business — to see clients or suppliers, attend a conference or trade show, work at another site — the transport, accommodation and meals while you are required to be away overnight are generally deductible. The test is why you went, and the evidence is what you did while you were there.

Mixed trips are apportioned, not averaged

• The purpose of the trip drives the airfare. A trip taken primarily for business with an incidental private day is treated differently from a holiday with one meeting attached. Mixed trips are commonly apportioned, and the honest starting point is what the trip was really for.
• Accommodation follows the business days. Nights required for the business purpose are generally claimable; the extra nights added for leisure are not.
• Family costs stay private. If a spouse or the kids come along, their flights, their meals and the extra cost of their travel are generally not deductible, even when the trip itself was genuinely for business.
• Overseas travel follows the same rules — the distance does not change the test, but it does raise the standard of evidence a reviewer will expect.

The travel diary

For sole traders and partners, a travel diary is generally expected where you are away for 6 or more nights in a row — a simple record of the dates, places, times and nature of each business activity. It does not need to be elaborate; it needs to be contemporaneous. The same habit is worth keeping for company owners and for any overseas trip regardless of length, because it is the document that turns a claim from an assertion into a record.

The evidence worth keeping

• Accommodation invoices — not just the booking confirmation, the tax invoice showing what was actually charged.
• The reason for the trip — the conference agenda, the meeting confirmations, the site instructions.
• Meal receipts while away overnight. Meals while travelling overnight for business are generally deductible and are generally not treated as entertainment — but taking a client out to dinner while travelling is entertainment, and sits under different rules.
• Boarding passes and itineraries, which quietly prove who travelled and when.

What we commonly see go wrong

• A family holiday claimed in full because one supplier meeting happened during it.
• No diary and no agenda for a long trip, leaving the business purpose to be reconstructed from photos and memory.
• Round-number estimates for meals with no receipts behind them.
• Meals claimed on day trips where nobody was away overnight.

A worked example

As an illustration: a Melbourne electrician flies to Queensland for an industry trade expo, and his wife joins him for several extra days of holiday afterwards. His airfare relates to a trip taken primarily for the expo; the accommodation for the expo nights is business, the holiday nights are private; his wife's airfare and costs are private throughout. Booked and coded that way at the time — two invoices, a short diary, the expo agenda saved to the file — the claim is clean and defensible. Untangled a year later from one credit card statement, every line becomes a judgement call.

When to get help

If a significant trip mixed business and holiday, if family travelled with you, or if an overseas trip is coming up and you want the records right from the start, it is worth agreeing the split before the return is prepared. The rules reward trips that were documented as they happened, and there is no way to backfill that after the fact.

Can I claim my spouse's or family's travel costs on a business trip?

Generally no. Even where your own travel is clearly for business, the costs of family members travelling with you — their fares, meals and the additional costs they add — are generally private and not deductible.

When do I need a travel diary?

For sole traders and partners, a travel diary is generally expected when you are away for 6 or more nights in a row, recording dates, places, times and the nature of each business activity. It is good practice on shorter and overseas trips too, because it is the strongest evidence of business purpose.

Are meals deductible when I travel for business?

Meals while you are required to be away overnight for business are generally deductible, supported by receipts, and are generally not treated as entertainment. Meals on day trips, and dinners hosting clients while travelling, sit under different rules.