Guides
Invoicing3 min read20 April 2025

5 invoicing mistakes that are costing NZ tradies money

Small invoicing mistakes add up to thousands in lost revenue every year. Here are the five most common.

The mistakes hiding in your invoicing process

Most trade businesses don't lose money because of bad work — they lose it because of bad admin. Invoicing is where a lot of that money disappears. Here are the five mistakes we see most often.

1. Sending invoices late

Every day you delay invoicing is a day later you get paid. A job done on Friday shouldn't be invoiced the following Tuesday. Get into the habit of invoicing same-day or first thing the next morning.

Late invoicing also signals to clients that the debt isn't urgent — so they treat it that way.

2. Vague payment terms

"Payment on receipt" and "net 30" are not clear payment terms. Write an actual date: "Payment due by 20 June 2025." It removes ambiguity and makes overdue chasing easier — you have a specific date to point to.

3. No follow-up schedule

Sending an invoice and waiting for the money to arrive is not a system. Set a fixed schedule:

  • 3 days before due: friendly reminder
  • Due date + 1: first chase
  • Due date + 7: phone call
  • Due date + 14: formal written demand

Most payments happen at the reminder stage if you're consistent.

4. Accepting verbal payment promises

"I'll sort it Monday" is not a payment plan. If a client asks for more time, get it in writing: the amount they'll pay and the date they'll pay it. A simple email confirmation is enough.

Verbal promises are hard to enforce and easy to backtrack on.

5. Waiting too long before escalating

The older a debt, the harder it is to collect. Invoices over 90 days old have a significantly lower recovery rate than those chased within 30 days.

If a client hasn't paid after two weeks of chasing, it's time to escalate — whether that's a formal demand, a professional follow-up service, or the Disputes Tribunal.

The fix

Most of these mistakes are solved by process, not tools. A consistent invoicing and follow-up routine will recover more money than any software upgrade.