Question 1

How accurate are the dollar estimates?

Accepted Answer

Quantifiable estimates use central tax-year configs and enacted legislation. The $1,000 instant deduction is computed at your marginal rate. From 2027-28, WATO is the lesser of $250 and basic income tax on net labour income; this broad Budget tool treats taxable income as net labour income for work-income profiles. The Medicare levy retroactive uplift compares your 2025-26 liability under the new vs old shade-in thresholds. Fuel excise uses an 8.5 L/100km national average. Reforms that depend on asset-level inputs are listed as watch items with links to dedicated calculators rather than guessed at.

Question 2

Why aren't negative gearing and CGT reform shown as dollars in the headline?

Accepted Answer

Both reforms require asset-level inputs (acquisition cost, rental loss, holding period, expected sale year) that this 60-second check doesn't ask for. Guessing a number from 7 inputs would mislead. Instead, the calculator flags these reforms as 'watch items' affecting you and routes you to the dedicated calculators (negative gearing calculator, CGT calculator) where the asset-level math is honest.

Question 3

When do the measures take effect?

Accepted Answer

The core tax package is now law — passed 25 June 2026, royal assent 26 June 2026 (Acts 49 and 50 of 2026). The $1,000 Instant Tax Deduction applies from the 2026-27 income year. The $250 WATO applies from 2027-28 as a statutory formula. The Medicare levy threshold uplift is retroactive to 1 Jul 2025 (applies to your 2025-26 return). The fuel excise cut ran 1 Apr to 30 Jun 2026. Negative gearing reform commences 1 Jul 2027 (properties held at 12 May 2026 grandfathered). CGT discount reform commences 1 Jul 2027 (Subdiv 112-E deemed-sale split for assets held at that date, valued at 1 July 2027). The 30% trust minimum tax commences 1 Jul 2028. FBT EV transition runs 1 Apr 2027 to 1 Apr 2029, then permanent.

Question 4

Is my data saved?

Accepted Answer

No. All inputs and calculations run locally in your browser. Nothing is sent to a server, and we don't persist your inputs across visits.

Budget 2026-27 net impact calculator

Tax Accuracy & Sources

Budget 2026-27 net impact calculator

Tax Accuracy & Sources

Related calculators