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Tax & Pay Calculator

Free GST Change of Use Calculator for New Zealanders

If an asset's business use percentage changes after the original GST claim, an adjustment is made each adjustment period to keep the input tax claim aligned with actual use.

Your adjustment

$5,000
$
$100$50k
100%
%
0%100%
60%
%
0%100%
GST repayable to IRD
$2,000
40 percentage point reduction

Based on $5,000 originally claimed at 100% business use, now 60%.

Adjustment percentage-40%
Original GST claimed$5,000
Revised GST allowable$3,000
DirectionRepay to IRD

About our GST Change of Use Calculator

Disclaimer: This calculator is for information only and does not constitute financial advice. Real-world figures may differ due to fees, rounding, rate changes, and policy specifics. Always confirm figures with the relevant provider before signing anything.