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Tools

Free tools for NZ contractors.

Quick calculators, no sign-up. Coffer does all of this automatically once you're invoicing through it.

How much tax will a business expense save me?

Enter a purchase and see the GST you claim back, the income tax it saves, and what it really costs. Handles depreciation on bigger assets.

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What's my take-home pay?

Enter your pay at any frequency and see PAYE, ACC, KiwiSaver and student loan across every pay period, with your take-home.

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Coffer

Calm invoicing and tax tracking for independent contractors in New Zealand.

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Coffer keeps the numbers behind your contracting straight through the year: what you have invoiced, what you have spent, and what you owe. It works out the figures and keeps the records, but it is not tax advice and does not stand in for your accountant or IRD. Its job is to make sure the numbers you take to them are right.

© 2026 Coffer. Made in New Zealand.