Free tools from M G Arthur & Associates

Big money questions deserve a straight answer.

Tax rules change. Budgets move the goalposts. Our calculators give you a clear first estimate of what it means for you — free, no sign-up — and when you want the full picture, Team M G Arthur is a conversation away.

Calculators

2026 Budget CGT CalculatorUpdated

The 2026 budget proposes the biggest change to capital gains tax in a generation — and there are now two ways to value your asset at 30 June 2027. Compare a market valuation against the proposed daily-indexation method on an asset you already own, with the current rules as a reference.

Invest as an Individual or a Company?New

You have a surplus to invest — does it end up worth more in your own name or inside a company? Weigh the tax on the way in, the growth, the capital gains treatment and the franked distribution on the way out, side by side.

More calculators are on the way — leave your email below and we’ll let you know.

Go deeper

Klarity360

From cash flow to retirement

A single calculator answers one question. Klarity360connects the four that matter — what does my family spend, what’s left to invest, where will my assets be at retirement, and will it last — in one linked picture you build with M G Arthur & Associates, then revisit as life changes.

  • What is my family's spending budget?
  • Do I have any surplus to invest?
  • How will my assets grow by retirement age?
  • Will I have enough to retire on?

Klarity360 is available to clients of M G Arthur & Associates — ask Team M G Arthur about it below.

Common questions

Are these calculators free to use?

Yes — free, no sign-up, no login. They run entirely in your browser and recalculate instantly as you change the inputs.

How accurate are the figures?

They are general estimates based on the assumptions you enter — simplified models that don't account for your personal circumstances. They're built for a clear first read of a decision, and the full picture is a conversation with the firm.

What happens when I leave my email?

We email you a summary of the figures you modelled, and send the same summary to M G Arthur & Associates so Team M G Arthur can pick up the conversation from your numbers — no obligation. We keep your email address and which calculator you used; the figures themselves aren't stored.

Want this applied to your situation?

This calculator gives you a general estimate. Leave your email and we'll send your results, then Team M G Arthur will be in touch to walk through what they mean for your actual assets — no obligation.