Separate capital assets from day-to-day expenses
A business cost is not automatically deductible in full when it is paid. Items that provide an enduring benefit may be capital assets and may need to be depreciated. During bookkeeping, create a review rule for purchases above the business’s capitalisation threshold and for items that look like equipment, vehicles, fit-out, computers, machinery or significant improvements. The final tax treatment should be confirmed under New Zealand rules.
The fixed-asset register should capture the description, supplier, invoice date, cost, GST treatment, acquisition date, date available for use, asset class, location, business-use percentage and financing details. Link the invoice and approval to the asset record. Grouping several assets into one vague line such as “equipment” makes disposals and rate reviews difficult later.
Use the correct depreciation rate and method
Inland Revenue publishes depreciation rates and a rate finder. The appropriate rate depends on the asset and sometimes the date acquired or first used. The schedule should show the tax book value, depreciation method, rate, current-year claim and closing adjusted tax value. Accounting depreciation and tax depreciation may differ, so maintain separate figures where necessary.
Review assets with no current-year depreciation, unusual negative values or rates that differ from similar assets. Confirm whether buildings, land, intangible assets or improvements have special treatment. Do not change rates simply to produce a desired expense; document the source and effective date of the rate used.
Understand low-value asset treatment
Inland Revenue’s current guidance says qualifying low-value assets costing less than NZ$1,000 can generally be deducted immediately for assets acquired from 17 March 2021 onwards, subject to the detailed rules. Related purchases may need to be considered together, and private or non-business use can affect the claim. Keep the invoice and the basis for treating the item as a low-value expense.
A bookkeeping policy should not automatically expense every item under NZ$1,000 without review. Costs that form part of a larger asset or project may need to be grouped. Consistency is important, but tax rules override a convenient accounting threshold. Flag uncertain items for the local tax adviser.
Record Investment Boost information separately
Inland Revenue states that from 22 May 2025 businesses can claim a 20% deduction for the cost of qualifying new assets, or assets new to New Zealand, and then claim depreciation on the remaining 80%. Eligibility, exclusions and timing require careful review. The fixed-asset register should identify assets potentially qualifying for Investment Boost rather than applying the deduction through an unexplained year-end journal.
Retain evidence of the acquisition date, whether the asset is new or new to New Zealand, cost components, date first available for use and business use. The tax workpaper should show the Investment Boost deduction, remaining depreciable base and ordinary depreciation. Assets acquired around the commencement date deserve particular attention.
Reconcile additions, disposals and the general ledger
At year-end, reconcile the fixed-asset register to the general ledger. Review repairs and maintenance for capital items and asset accounts for expenses that should not have been capitalised. Record disposals, trade-ins, scrapped assets and insurance proceeds, and remove the related cost and accumulated depreciation. Confirm GST treatment and any tax adjustment with the adviser.
A good schedule allows the reviewer to move from the financial statements to individual assets and invoices. It also helps management understand replacement needs and insurance coverage. Roll forward the final register only after all tax and accounting adjustments have been approved and posted.