Insights

The thinking behind the numbers.

Guides answer one question with a computed figure. Insights go longer — how a policy change actually plays out in a cashflow, what a verdict looks like on a real listing, and the reasoning behind how Plintha models a deal. Written by the team building the engine, grounded in the same numbers it computes.

• 20 July 2026 · 7 min readThe Cheapest State to Buy Is the Most Expensive to Hold: Stamp Duty vs Land Tax on a $700k House (2026–27)The ACT charges the least stamp duty on a $700,000 house — $20,040 — and the most land tax, about $5,620 a year. Hold for a decade and the ranking flips. All 8 states, engine-computed.stamp dutyland taxstate comparison
• 14 July 2026 · 8 min readNegative Gearing & CGT After the 2026–27 Budget: A Worked ExampleThe same $750,000 house costs $10,244 more a year to hold if it's bought after 12 May 2026 instead of before — a worked example from Plintha's own engine.negative gearingCGT2026-27 budget