What is a purchase price?

Most invoices roll the base price, GST where it applies, delivery and freight, installation and commissioning, stamp duty charged as part of the sale, and any mandatory accessories into a single figure. Registration and CTP often sit on the same invoice, but they are recurring operating costs rather than part of the capital cost. Broker and legal fees belong in the price when the seller requires them to be paid as part of the consideration.

Commonly shown separately: government grants or subsidies, a trade-in credit that reduces the net cash you pay, optional service and maintenance contracts, finance charges and lender fees, and voluntary extras added after the sale agreement. Ask for an itemised tax invoice so you can see exactly what the seller treats as included.

Lenders finance a proportion of the purchase price, so the figure sets both the loan and the deposit. It drives the loan to value ratio, and a misreported price distorts that ratio, which can affect approval or the security conditions. Repayments are calculated on the financed amount and, where one applies, on the agreed residual value or balloon set against the price.

Secured lenders register their interest on the PPSR using the purchase details, so accuracy heads off later disputes. In accounting, whether an arrangement is a finance lease or an operating lease can turn on ownership transfer or on the amount financed relative to fair value, which the purchase price and residual influence. Vendor warranties are usually tied to the invoice, so items left out of it may not be covered.

If the seller is registered for GST and the supply is taxable, GST is charged on the sale, and a GST-registered business buyer can generally claim an input tax credit where eligible, provided the tax invoice shows the GST amount. Where GST is buried in a single total with no tax invoice, clarify the amount before you claim it.

For capital gains tax the purchase price is the main element of the cost base, and incidental acquisition costs such as stamp duty, legal fees and brokerage belong in it, while finance interest and running costs do not. For depreciation, the depreciable amount is generally the capitalised cost less any GST credits claimed, written down over the asset's effective life. Trade-ins complicate the GST arithmetic, so check with your accountant or the ATO.