The Seniors and Pensioners Tax Offset (SAPTO) is a non-refundable tax offset that reduces the tax payable by eligible older Australians. It exists to ensure age-pension-age individuals on modest retirement incomes don't pay tax. Combined with the $18,200 tax-free threshold, the Low Income Tax Offset (LITO), and the senior-specific Medicare levy low-income reduction (single lower threshold $43,020 for FY 2025–26), SAPTO lifts the effective tax-free zone for a single retiree to roughly $34,656 of rebate income — and the calculator below works out the exact figure for your status. The actual cross-over depends on how the four components interact at your specific income.

Two things matter for SAPTO. First, you must reach Age Pension age (currently 67) at some point in the income year, OR you receive an Australian Government pension or allowance (such as Age Pension, DVA service pension, or Carer Payment for someone of pension age) — in the second case the age requirement doesn't apply. Second, your rebate income must be below the cut-out threshold. Rebate income is broader than taxable income: it adds back reportable employer super contributions, deductible personal super contributions, net rental and financial investment losses, reportable fringe benefits, exempt foreign employment income, and tax-free pensions or benefits.

For couples, SAPTO is calculated per person — each spouse uses their own rebate income against the couple-each thresholds ($28,974 full / $41,790 cut-out for FY 2025–26). If one spouse can't use their full SAPTO entitlement (because their tax payable is lower than their offset), the unused portion can be transferred to the other spouse. This calculator estimates the per-person entitlement; the spouse-transfer mechanism is summarised below but the formal calculation is more involved — for that, use the ATO's official SAPTO calculator or speak to a registered tax agent.

SAPTO is non-refundable: it can reduce your tax to zero but won't generate a refund on its own. It's also separate from (and in addition to) LITO and the Medicare levy low-income reduction. Once you also know your gross tax position, the Income Tax Calculator and Age Pension Calculator are useful for the rest of the picture.