Australia Stamp Duty & Income Tax Schedules 2025-27 (8 states + ATO, machine-readable)

Machine-readable compilation of the transfer (stamp) duty schedules of all 8 Australian states/territories for 2025-26 — including the concessional schedules most published tables omit (VIC principal-place-of-residence, QLD home concession, ACT income-tested scheme, the NT quadratic formula) — plus the ATO resident income tax system for 2026-27 (brackets, Medicare levy, LITO, marginal HELP/HECS repayment bands, MLS, Superannuation Guarantee). Compiled by the Calcuris Data Team. Official schedules are scattered across 8 state revenue office websites in inconsistent formats; this dataset normalises all of them into flat CSV bracket tables, verified to the cent against each revenue office's own calculator (34/34 checks). Sources: Revenue NSW, SRO Victoria, QRO, RevenueWA, RevenueSA, SRO Tasmania, ACT Revenue Office, NT TRO, ATO. These schedules power the stamp duty calculator and income tax calculator on calcuris.com.License: CC BY 4.0 — attribution to Calcuris.com.