Research & Insights Center
Data-driven research reports based exclusively on official government data. Every report includes methodology, sources, and key findings. No fabricated data, no unsubstantiated claims.
Highest Paying States 2026
Research report on the highest paying US states in 2026. Average salary data, state rankings, income tax analysis, and cost of living adjustments.
Most Affordable States 2026
Research report on the most affordable US states in 2026. Cost of living rankings, housing affordability analysis, and purchasing power comparisons.
States With Lowest Income Tax 2026
Research report on US states with the lowest income tax in 2026. States with no income tax, flat tax rates, and progressive tax comparisons.
States With Highest Housing Costs 2026
Research report on US states with the highest housing costs in 2026. Median home values, rental costs, housing indices, and affordability analysis.
Salary Growth Trends 2026
Research report on US salary growth trends in 2026. Average salary changes, state-by-state growth comparison, and factors driving wage increases.
Official Sources
New Zealand calculators use data from the following official government agencies:
- Inland Revenue (IRD) — Income tax brackets, KiwiSaver rules, and ACC levies.
- Stats NZ — Wage data, employment statistics, and cost of living indices.
- Reserve Bank of New Zealand (RBNZ) — Official cash rate and monetary policy data.
Methodology
Our New Zealand calculators follow tax brackets, KiwiSaver contribution rates, and ACC levies published by Inland Revenue (IRD). Economic data is sourced from Stats NZ. Mortgage calculations use RBNZ official cash rate and market averages. All figures are for educational purposes.
Data Sources
All tax brackets, contribution rates, and economic data used in our calculators are sourced from the official government publications listed above. Rates are updated at least annually to reflect the latest tax year and regulatory changes. Users should verify critical figures with official sources or qualified professionals.
Last updated: June 2026. Information may change; always verify with official sources.
Last Updated: June 2026 — Reviewed Against Official Sources