Disclaimer: Estimate only; deductions must satisfy ATO rules and spending money solely to obtain a deduction may not improve your finances.
Compare taxable income and estimated tax before and after planned eligible deductions. This Salary Tax Planning Calculator uses 2026–27 Australian resident tax, LITO and Medicare assumptions to estimate the potential tax reduction and after-tax cost.
What Is a Salary Tax Planning Calculator?
A Salary Tax Planning Calculator is a smart financial tool that compares an existing tax position with a scenario containing planned additional deductions. It estimates whether deductible spending may reduce taxable income and how much of the spending remains after the estimated tax reduction.
The calculator uses annual salary, other taxable income, existing eligible deductions and planned deductions. It does not calculate salary sacrifice, employee benefits, super contributions, salary packaging options or take-home pay.
This distinction is important because the old title “Salary Sacrifice & Tax Planning Calculator” suggested two different calculations. A salary tax planning calculator examines deductions, while the salary sacrifice calculator addresses eligible pre-tax arrangements separately.
For a general income estimate, use the Simple Salary Calculator. A historical salary breakdown is available through the Australian Salary Calculator.
How to Use the Salary Tax Planning Calculator
Step 1: Enter annual salary
Enter annual income from salary. The visible placeholder uses A$90,000.
Step 2: Enter other taxable income
Enter taxable income not already included in salary. The placeholder uses A$5,000.
This field is optional and is treated as A$0 when left blank.
Step 3: Enter existing eligible deductions
Enter deductions already expected to be claimed. The placeholder uses A$1,000.
This field is also optional. Existing deductions cannot exceed total salary and other taxable income.
Step 4: Enter planned additional deductions
Enter the additional deductible spending you want to test. The visible placeholder uses A$2,000.
This amount must be greater than A$0 and cannot exceed the income remaining after existing deductions.
Step 5: Select Medicare treatment
“Include flat 2% estimate” is selected by default. You can alternatively exclude Medicare from the comparison.
The flat option does not calculate Medicare levy reductions, exemptions, family thresholds or surcharge liability.
Step 6: Press Calculate
The calculator displays:
- Estimated tax reduction from planned deductions
- Taxable income before the plan
- Taxable income after the plan
- Estimated tax before the plan
- Estimated tax after the plan
- After-tax cost of planned spending
- Tax benefit per deduction dollar
A salary budget calculator can help decide whether the after-tax cost fits within regular expenses. The result should not be treated as guaranteed tax savings or advice to spend money.
How Is the Tax Reduction Calculated?
Gross taxable income is:
Gross income = Annual salary + Other taxable income
Taxable income before the plan is:
Taxable income before plan = Gross income − Existing deductions
Taxable income after the plan is:
Taxable income after plan = Taxable income before plan − Planned deductions
The calculator applies its 2026–27 resident tax brackets and LITO calculation to both amounts. When the default Medicare option is selected, it adds a flat 2% of taxable income to each tax estimate.
Estimated tax reduction is:
Tax reduction = Tax before plan − Tax after plan
After-tax costAfter-tax cost is:
After-tax cost = Planned spending − Tax reduction
The tax benefit per deduction dollar is:
Benefit rate = Tax reduction ÷ Planned deductions × 100
A deduction reduces taxable income; it does not provide a dollar-for-dollar refund. The ATO guidance on claiming deductions should be checked before treating planned spending as eligible.
The tax return calculator performs a broader end-of-year estimate, while the tax refund estimate calculator addresses a possible refund position.
Salary Tax Planning Calculation Example
This example uses the calculator’s exact visible placeholders and default Medicare selection:
- Annual salary: A$90,000
- Other taxable income: A$5,000
- Existing eligible deductions: A$1,000
- Planned additional deductions: A$2,000
- Medicare treatment: Include flat 2% estimate
Gross income is:
A$90,000 + A$5,000 = A$95,000
Taxable income before the plan is:
A$95,000 − A$1,000 = A$94,000
Taxable income after the plan is:
A$94,000 − A$2,000 = A$92,000
At A$94,000, the calculator estimates income tax of A$18,720 and Medicare of A$1,880:
Estimated tax before plan = A$20,600
At A$92,000, it estimates income tax of A$18,120 and Medicare of A$1,840:
Estimated tax after plan = A$19,960
The estimated tax reduction is:
A$20,600 − A$19,960 = A$640
The after-tax cost is:
A$2,000 − A$640 = A$1,360
Using the exact JavaScript calculation, the displayed results are:
- Estimated tax reduction: A$640.00
- Taxable income before plan: A$94,000.00
- Taxable income after plan: A$92,000.00
- Estimated tax before plan: A$20,600.00
- Estimated tax after plan: A$19,960.00
- After-tax cost of planned spending: A$1,360.00
- Tax benefit per deduction dollar: 32.00%
The result does not mean the A$2,000 purchase earns A$640. It means the calculator estimates A$640 less combined income tax and flat Medicare, leaving an after-tax spending cost of A$1,360.
The contractor pay calculator Australia may be more suitable for contractors comparing employee and contractor income because business-deduction rules can differ.
What Is the After-Tax Cost?
After-tax cost is the planned spending minus the estimated reduction in tax and Medicare. It helps show why buying something solely to claim a deduction may not improve personal finances.
The calculator does not verify receipts, private-use portions, work-related purpose or substantiation rules. Users must confirm that tax deductions are eligible and maintain any required records.
It is not income tax calculation software, a payroll tax calculator or a payroll tax calculation system. It does not determine payroll obligations, salary structure, pay structure or salary sacrifice payroll impact.
For longer-term savings projections, the super retirement calculator uses retirement assumptions. This tax tool does not apply compound interest calculator logic or estimate growth in a super balance.
Planned Deductions vs Salary Sacrifice
What is salary sacrifice calculator functionality? It normally estimates how pre-tax income may be redirected under an agreement with an employer. This calculator does not perform that calculation.
Salary sacrifice Australia may involve salary sacrifice amounts directed to super or eligible salary sacrifice benefits. Depending on the arrangement, people may discuss a salary packaging calculator ATO, salary package calculator Australia, ATO salary sacrifice calculator logic or super contribution calculator.
The current calculator does not calculate novated car leasing, car leasing, laptops salary sacrifice, salary sacrifice super impact, salary sacrifice effect or salary sacrifice tax impact. Use the car salary sacrifice calculator for a vehicle-specific estimate.
It also cannot answer “is salary sacrifice worth it?” That decision may depend on income level, chosen benefits, contribution caps, fees, salary sacrifice strategy and financial goals.
This calculator is a tax planning tool rather than a complete financial planning tool. Salary and tax tools, payroll calculators and Australian financial calculators can serve different purposes and should not be treated as one calculation.
Frequently Asked Questions
Q1: What is the Salary Tax Planning Calculator used for?
A: It compares estimated taxable income and tax before and after planned eligible deductions.
Q2: Does it calculate salary sacrifice?
A: No. It does not include a salary-sacrifice amount, super or packaged-benefit field.
Q3: Does it increase take-home pay?
A: It does not perform a take-home pay calculation. It estimates tax reduction and after-tax spending cost.
Q4: Are planned deductions automatically eligible?
A: No. Users must confirm that expenses satisfy applicable ATO rules and record requirements.
Q5: Does it include Medicare levy?
A: The default option adds a flat 2% estimate. It does not calculate reductions, exemptions or surcharge liability.
Q6: Can it estimate long-term savings?
A: No. It does not calculate investment growth, compound interest or long-term savings.
Q7: Are its results official?
A: No. Results are estimates and do not replace an ATO assessment, tax return or professional advice.
Q8: Can spending A$2,000 create A$2,000 of tax savings?
A: No. In the placeholder example, A$2,000 of planned deductions produces an estimated A$640 tax reduction and an A$1,360 after-tax cost.