The new pay -setting law was rushed through under urgency after the Remuneration Authority issued a pay rise in February that Mr Key thought was too high.
Pay rises are now measured against the quarterly employment survey and taken each June for the previous year.
So the new pay rises is based on the public sector pay increases from July 2014 to June 2015 and is backdated to July 1 this year.
The new pay rates and percentage rise is as follows:
• Prime Minister, 3.11 per cent rise to $448,569.
• Deputy Prime Minister, 3.32 per cent, $318,760
• Cabinet Minister/ Leader of Opposition/ Speaker, 3.14 per cent to $281, 881
• Minister outside cabinet, 3.55 per cent to $237, 917
• Under-secretary, 3.83 per cent to $185,098
• Whip base pay, 3.93 per cent to $171, 137
• Select committee chair, 3.93 per cent to $171,137
• Other Members of Parliament, 4.05 per cent to $156, 136