Improve cashflow by getting invoices paid faster (NZ)
Cashflow isn't about how much you earn — it's about when the money arrives. For most New Zealand small businesses, the biggest gap is the one between sending an invoice and being paid. Close that gap and your cashflow improves without a single new sale. Here's how.
Why unpaid invoices hurt more than they look
An overdue invoice is money you've already spent to earn. You've paid for the labour, the materials, the van, the tax — and you're waiting on someone else to pay you back. Every week an invoice sits unpaid is a week you're funding your customer's business out of your own account. A few of them at once is how a profitable business runs out of cash.
Shorten the gap, in order
- Invoice the moment the work is done. The clock only starts when the invoice goes out. Same-day beats end-of-month.
- Set clear, short terms. "Due on receipt" or 7 days beats the default 20th-of-the-month, and put them on the invoice and your terms of trade — see charging interest on overdue invoices.
- Make it easy to pay. A pay-now link on the invoice removes the "I'll do it later" step. Card or bank, one click.
- Follow up early and consistently. A reminder the day an invoice goes overdue, then a call if the email goes quiet. Most invoices clear on the follow-up, not the deadline — see how to chase an overdue invoice.
- Recover before you escalate. A friendly call gets the invoice paid and keeps the customer, at a fraction of a collection agency's cut — see invoice recovery vs debt collection.
The follow-up is where the money is — and why it slips
Every step above is known. The one that gets skipped is the follow-up, because it's awkward and it eats the working day. Nobody wants to ring a customer about money, so the reminder never goes out and the invoice ages. Yet the call is exactly where overdue invoices get paid: it surfaces the wrong inbox, the unraised query, the "sorry, I'll pay Friday". Doing it every week, for every overdue invoice, is what actually moves your cashflow.
That's the job Gary does. It connects to Xero, finds what's overdue, rings the customers you approve within business hours, and tells you what came back — so the follow-up happens without eating your evenings.
Watch the two numbers that matter
Cashflow from invoicing comes down to two measures:
- Days to payment — the average time from sending an invoice to being paid. Lower is better; every day you cut is cash in your account sooner.
- Collection rate — how much of what you're owed you actually get, and when. One big unpaid invoice drags it down.
Gary tracks both for you over time, so you can see the follow-up working rather than guess.
This guide is general information, not financial advice.
Common questions
What's the fastest way to improve cashflow?
Get paid sooner on work you've already done. Invoice the day the job's finished, make it one click to pay, and follow up the moment an invoice goes overdue — a call, not just an email.
How much does an overdue invoice cost my business?
The full amount, for as long as it's unpaid — that's money you've already spent to earn, sitting in someone else's account instead of funding your own work. Several at once is how a profitable business runs short of cash.
Does chasing invoices sooner really help cashflow?
Yes. Most overdue invoices are paid on the follow-up, not the due date. Chasing earlier and consistently shortens the gap between sending an invoice and being paid, which is the single biggest lever on small-business cashflow.