How salary sacrifice charity affects your gross pay, super, and tax

What is salary sacrifice charity?

Salary sacrifice charity is an arrangement where you agree with your employer to forgo part of your pre-tax salary, and your employer pays that amount directly to a registered charity. It’s a way to donate to a cause you support while reducing your taxable income. Your gross pay (the figure used for the Salary Index) stays the same – the sacrifice comes out before you receive your cash wages.

How it fits with the national pay line

The Salary Index compares your gross full-time adult ordinary-time earnings to the national benchmark of 100, which equals $108,352 a year (based on ABS Average Weekly Earnings, May 2026). Because salary sacrifice charity doesn’t change your gross pay, your index remains whatever it was for your role and industry. For example, a retail worker in New South Wales might have an index around 75.9 (retail trade) adjusted by the state index of 101.2, but the charity sacrifice doesn’t move that number.

Gross pay and the index

Your gross pay is the amount your employer pays you before any deductions like tax, super, or salary sacrifice. The ABS collects earnings data based on this gross figure. So if you earn $80,000 a year and sacrifice $5,000 to a charity, your gross pay is still $80,000. Your index is 80,000 / 108,352 × 100 ≈ 73.8. That’s below the national line, which is typical for many roles outside mining or professional services.

If you’re on the national minimum wage ($26.44 per hour, $52,255 annualised, index 48.2), salary sacrifice charity would still leave your gross pay at that level – but you’d have very little room to sacrifice without falling below award or minimum wage requirements. Modern awards and the Fair Work Act generally prevent salary sacrifice from reducing your cash pay below the relevant minimum.

Tax implications of salary sacrifice charity

Salary sacrifice charity lowers your taxable income. In 2026–27, resident tax rates (excluding Medicare) are:

• Nil up to $18,200
• 15% from $18,201 to $45,000
• 30% from $45,001 to $135,000
• 37% from $135,001 to $190,000
• 45% above $190,000 Plus a 2% Medicare levy on most taxable income.

Example: You earn $80,000 gross. You salary sacrifice $5,000 to a DGR charity. Your taxable income drops to $75,000. You save:

• Tax: $5,000 × 30% = $1,500
• Medicare: $5,000 × 2% = $100 Total saving: $1,600.

Your take-home pay (after tax and Medicare) increases by that amount compared to donating the same $5,000 from after-tax income. The charity receives the full $5,000. It’s a tax-effective way to give.

Note: The charity must be a deductible gift recipient (DGR) for the salary sacrifice to be tax-free. Your employer may also need to report the benefit – some charities are exempt from fringe benefits tax (FBT), but others aren’t. Check with your payroll or a tax adviser.

Super guarantee and salary sacrifice charity

Your employer must pay super guarantee (12% from 1 July 2026) on your ordinary time earnings. Salary sacrifice to a charity reduces your cash salary, but it doesn’t automatically reduce the super guarantee base. Under many awards and agreements, super is calculated on the gross pay before any salary sacrifice. However, some arrangements allow the super base to be reduced. The Fair Work Ombudsman and ATO have guidance – generally, salary sacrifice for super is different from salary sacrifice for charity. If you sacrifice to charity, your super guarantee may still be based on your pre-sacrifice earnings. Ask your employer to confirm.

For example, on $80,000 gross, super at 12% is $9,600. If you sacrifice $5,000 to charity and your employer calculates super on the reduced amount of $75,000, your super would be $9,000 – a loss of $600. That’s a trade-off. Many employers continue to use the original gross figure, but it’s not guaranteed.

Practical considerations

• Award and minimum wage limits: You cannot salary sacrifice below the relevant award rate or the national minimum wage. For juniors, the junior rates apply (e.g., $9.73/hr for under 16).
• FBT: If the charity is not a public benevolent institution or health promotion charity, the benefit may be subject to FBT. Most large charities are DGRs and FBT-exempt, but check.
• State differences: Your state’s index (e.g., NSW 101.2, Victoria 98) affects the comparison but not the mechanics of salary sacrifice. See states for more.
• Industry benchmarks: Your industry index (e.g., retail 75.9, professional services 114.7) gives context for your gross pay. Salary sacrifice charity doesn’t alter that.

Is salary sacrifice charity right for you?

It can be a smart way to support a cause and reduce tax, but it’s not for everyone. If you’re on a low income, the tax saving is smaller, and you might prefer the cash. If you’re close to a tax bracket threshold, sacrificing enough to drop into a lower bracket can save more. Always consider your super guarantee and any impact on government benefits (like Family Tax Benefit) that depend on adjusted taxable income.

For more on how the index works, see how the index works. For other pay topics, browse topics.

Final word

Salary sacrifice charity is a tax-effective donation method that leaves your gross pay and salary index unchanged. It reduces your taxable income, saves you tax and Medicare, and lets your chosen charity receive the full amount. But watch the effect on your super and check the charity’s DGR status. Use the Salary Index to see where your gross pay sits against the national line, and talk to a professional before setting up an arrangement.