Finance 
It's one of the most common questions business owners ask their accountants in March: should I buy that piece of equipment before balance date? The answer depends on your situation — but understanding how the numbers actually work helps you make the decision before you're in the accountant's office.
What Balance Date Has to Do With It
Most New Zealand businesses run to a 31 March balance date. When you purchase a depreciable asset before that date, you can claim a depreciation deduction for that financial year. The later in the year you buy, the smaller the deduction — IRD calculates it based on the number of days the asset was held during the year.
An asset purchased on 30 March still gets one day's depreciation for the year. An asset purchased on 1 April goes into the next financial year entirely.
How Depreciation Works
Depreciation is IRD's way of recognising that assets lose value over time. Instead of deducting the full cost of an asset in the year of purchase, businesses deduct a portion each year over the asset's useful life.
The two main methods are:
- Diminishing value (DV): A fixed percentage applied to the asset's remaining book value each year. Higher deductions early, reducing over time.
- Straight line (SL): A fixed amount deducted each year until the asset's value reaches zero.
For most business assets — vehicles, machinery, equipment — the diminishing value method produces a larger deduction in the earlier years, which is where most businesses want it. For a fuller picture of how this works, see our post on the NZ Government's Investment Boost and depreciation.
Does Buying Before Balance Date Save Tax?
Technically, no — it doesn't save tax, it brings forward a deduction. You'll claim a portion of the depreciation this year rather than next. Whether that's valuable depends on:
- Your taxable income this year: If you have a strong profit year, bringing forward a deduction reduces the tax payable now. If it's been a quiet year, the deduction may be less urgent.
- Your cash position: Spending cash on an asset to get a partial deduction doesn't always make financial sense. Financing the asset preserves your cash and still gives you the depreciation deduction — and the interest on the finance is also deductible.
- Your accountant's view of your full-year position: The value of bringing forward a deduction depends on your effective tax rate and what else is happening in your financials.
Where Finance Changes the Equation
If you finance the asset rather than paying cash:
- You get the depreciation deduction regardless — you own the asset
- Your working capital stays intact — the purchase doesn't drain your bank account
- The interest expense on the finance is also deductible
- Your cash stays in the business earning a return rather than sitting in a piece of equipment
Our capital reinvestment calculator lets you model what keeping that capital working could mean for your business. For the broader framework behind this decision, see our post on Opex vs Capex and our post on business finance vs using cash.
The Right Question to Ask
Rather than “should I buy before balance date to save tax?”, the better question is: “Do I need this asset, does it make sense to acquire it now, and is financing it the right way to do it?”
If the answer to all three is yes, the timing relative to balance date is then worth confirming with your accountant — who can tell you exactly what the deduction looks like given your current year position.
Finance Worx works with business owners across New Zealand to structure asset finance before and after balance date. Find out more about business and commercial finance. Apply now or contact us to talk through your situation.