Australia Financial Calculators 2026 – Mortgage, Super, Tax & More

Why Australians Use CalcPhi

Australian personal finance is genuinely complex. The interaction between income tax, Medicare Levy, super contributions tax, and capital gains discount rules means that a small change in strategy can be worth thousands of dollars — if you understand the numbers. CalcPhi's Australia calculators do the maths precisely, using current ATO rates, APRA super benchmarks, and RBA data.

Every calculator on this page is built to ATO and ASIC MoneySmart standards for FY 2025-26. Results are updated within 48 hours of any Federal Budget announcement or ATO rate adjustment. All content is written and reviewed by qualified Australian finance professionals holding CPA, CFA, or CFP credentials.

What sets our calculators apart

Super calculators account for the 15% contributions tax inside the fund, the concessional cap ($30,000 for FY 2025-26, rising to $32,000 for FY 2026-27), and the earnings tax inside accumulation phase — not just a simple compound growth formula.

Tax calculators correctly apply the Medicare Levy (2%), the Low Income Tax Offset (LITO), and the correct marginal rate thresholds — not approximations. Salary take-home results show the actual net figure after all withholdings.

Mortgage calculators use the actual reducing balance method, include the APRA serviceability buffer in borrowing capacity estimates, and correctly model offset account interest savings using the daily calculation method used by Australian lenders.

Start with the calculator most relevant to your situation, then read the accompanying article for the regulatory context and worked examples.