Many New Zealand businesses run their management reports on a cash basis for years. It is simple, it matches the bank balance, and it is easy to explain. Then the business grows, takes on bigger jobs or more stock, and the monthly numbers start telling a story nobody believes. A great month followed by a terrible one, when nothing much changed in between.

Usually the business hasn’t changed. The reporting basis just can’t keep up. Moving management reporting to an accrual basis fixes that, but it touches your data, your processes and your month-end. Here is how to make the switch without breaking anything.

This article is general information, not tax or accounting advice. Confirm the details for your business with your accountant.

Cash and accrual in plain terms

On a cash basis, income is recorded when money arrives and costs when money leaves. On an accrual basis, income is recorded when it’s earned and costs when they’re incurred, regardless of when the cash moves.

Neither is wrong. They answer different questions. Cash tells you what happened in your bank account. Accrual tells you how the business actually performed in a given period.

Why it matters for management

The difference shows up quickly once a business has any of the following:

  • Lumpy supplier payments. Paying three months of stock in one month makes that month look like a loss and the next two look like windfalls.
  • Jobs or projects that span months. Costs land in one period and the invoice in another, so job margins are meaningless month to month.
  • Customers on credit terms. Revenue appears when customers pay, not when you did the work.
  • Seasonality. It becomes hard to tell a seasonal dip from a real problem.

Accrual reporting matches revenue with the costs that produced it. That makes margins by period, by job and by product line something you can actually manage.

Your GST basis and your management reports are separate decisions

People sometimes assume that because they account for GST on a payments basis, their management reports must be on a cash basis too. They don’t have to be.

Inland Revenue lets businesses with total sales of $2 million or less in the last 12 months use the payments basis for GST, while the invoice and hybrid bases are open to anyone. See Inland Revenue’s guidance on GST accounting bases. That choice affects your GST returns. Your management reports can be prepared on an accrual basis regardless, and most cloud accounting systems, including Xero, let you run reports on either basis.

What changes in your data

The report setting is the easy part. The work is making sure the underlying data supports accrual reporting:

  • Invoices dated correctly. Sales invoices need to be raised and dated when the work is done or goods are delivered, not when someone gets around to it.
  • Bills entered when received. Supplier bills should go in with their correct dates promptly, not when they are paid.
  • Accruals for costs not yet billed. Work done by a supplier this month but invoiced next month needs to be recognised this month.
  • Prepayments. Annual costs paid up front, such as insurance or software, are spread across the months they cover.
  • Stock and cost of goods sold. If you hold inventory, cost of sales should reflect what you sold in the period, not what you bought.
  • Depreciation. Recorded monthly rather than once a year.

Fix the chart of accounts first

Before switching, review your chart of accounts. Accrual reporting needs a structure that supports it:

  • Cost of sales separated clearly from overheads, so gross margin means something.
  • Revenue split by the streams you want to manage, such as product lines, services or regions.
  • Balance sheet accounts for accrued expenses, prepayments, work in progress and income received in advance.

This is also the moment to remove accounts nobody uses and merge ones that overlap. A cleaner chart makes every report after this easier.

Work in progress and accruals: the hard part

For businesses that run jobs or projects, work in progress is where accrual reporting earns its keep and where it takes the most care. At each month-end, someone needs to assess how much of each open job has been earned and what costs belong to it.

Agree a consistent method with your accountant, document it, and set a materiality threshold so the team isn’t chasing tiny amounts. A short month-end checklist covering accruals, prepayments and work in progress keeps it repeatable, and stops it depending on one person’s memory.

Run both in parallel

Don’t switch overnight. Run cash and accrual reports side by side for a few months. Reconcile the difference between them each month and make sure you can explain it. This builds confidence in the new numbers and catches data problems while the old reports are still there as a reference.

Brief the owners or board before the first accrual pack goes out. The numbers will look different, and it helps if everyone knows why.

Rebuild the board pack

Once the accrual numbers are trusted, rebuild the management pack around them:

  • Profit and loss by month on an accrual basis, with comparisons to budget and last year.
  • Gross margin by revenue stream, job or product line.
  • Balance sheet movements, including debtors, creditors, stock and work in progress.
  • A cashflow view alongside it, because accrual profit isn’t cash in the bank.

That last point matters. Accrual reporting tells you how the business is performing, but cash still pays the bills. The strongest management packs show both.

The switch in eight steps

  1. Agree the approach and any work in progress method with your accountant.
  2. Review and restructure the chart of accounts.
  3. Fix invoice and bill dating habits across the team.
  4. Set up accrual, prepayment and depreciation processes.
  5. Write a month-end checklist that covers every adjustment.
  6. Run cash and accrual reports in parallel for a few months, reconciling the difference.
  7. Brief the owners or board on what will change and why.
  8. Switch the management pack to accrual, with a cashflow view alongside.

Where to start

Start by reviewing your chart of accounts and listing the month-end adjustments you would need. If you want management reporting that reflects how your business actually performs, see how we approach insight and reporting and data platforms, or get in touch to talk it through.