Salary Sacrifice

Salary sacrifice is an agreement with your employer to give up part of your future pre-tax salary in exchange for something else - for most Australians, extra contributions into super. The sacrificed amount never touches your bank account, so it never passes through your marginal tax rate: it lands in the fund and is taxed at 15 percent, the same concessional envelope your employer's 12 percent guarantee uses. Every dollar diverted saves the gap between your marginal rate plus the 2 percent Medicare levy and 15 percent - roughly 17 to 32 cents on the dollar depending on the bracket.

The rules are the part people skip. The arrangement must be prospective: agreed before the pay is earned, never after. Everything counts toward the $30,000 annual concessional cap alongside the guarantee. The amounts appear on your income statement as reportable super contributions, which count in the income tests for the Medicare Levy Surcharge and HELP repayments - the sacrifice trims your tax bill, not those thresholds. And not every employer offers it, because payroll has to be set up to run it.

Walk one pay cycle. You agree with payroll to sacrifice $500 a fortnight into super, and the $500 is redirected before PAYG withholding is calculated. Your taxable pay drops by $13,000 a year and your take-home drops by roughly $7,900 - the rest is the tax you are no longer paying at your marginal rate. The full $13,000 lands in the fund as a concessional contribution, is taxed at 15 percent, and roughly $11,050 starts compounding. The compound-interest entry covers the growth mechanics.

The tax arithmetic is the entire point. At a 37 percent marginal rate plus the 2 percent Medicare levy, each sacrificed dollar costs you 61 cents of take-home pay while the fund receives the full dollar taxed at 15 percent. The alternative - taking the salary and contributing it personally - arrives with tax already paid and requires a notice of intent to claim the deduction back. The sacrifice does the same job automatically, on every pay, with no paperwork in April. MoneySmart's salary packaging guidance notes the strategy is most effective for middle to high incomes, where the marginal rate gap is widest.

The constraints close the loop. Everything counts toward the $30,000 concessional cap - the guarantee included - and the ATO taxes anything over the cap at your marginal rate, which inverts the benefit entirely. Award-covered employees cannot sacrifice below their award minimum, and the arrangement can be varied or stopped in writing with payroll. Run the numbers through the salary sacrifice calculator before committing to a figure.

For an Australian reader, salary sacrifice is the second-largest lever in the pay package after the guarantee itself, and the only one you control. The ATO's concessional treatment is the engine: diverting dollars from a 30, 37 or 45 percent marginal rate into a 15 percent envelope is an immediate, guaranteed saving no investment product can promise. The concessional contributions entry covers the bucket the sacrifice shares with the guarantee. MoneySmart's salary packaging guide confirms the mechanics - the arrangement is made with the employer, before the pay is earned, and the fund taxes the contributions at 15 percent like any other concessional money.

A colleague named Brent (yes, that Brent) sacrificed generously through a bonus year without checking the cap. He exceeded it by a few thousand dollars, and discovered the excess was taxed at his marginal rate - the saving inverted into a surcharge plus an amended assessment. The sacrifice itself was right; the sizing was wrong. The highest-leverage thing most Australians can do is check the remaining concessional cap in myGov before each pay rise or bonus. Size the sacrifice to the gap, and run the whole picture through the superannuation contribution optimiser before committing.