Guides & Analysis

Money decisions that cross more than one calculator — worked through with current Australian rates.

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Home Buying
19 min read

How Much Income Do You Need to Buy a House in Australia?

Turn a home price into the upfront cash, monthly repayment and gross household income it needs. Compare one or two incomes, HELP debt, 5%–20% deposits and the APRA-buffered repayment.

MortgageStamp dutyIncome taxHELP
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Household Tax
16 min read

Couples, Tax and HELP: Your Combined MLS and Salary Sacrifice Picture

Income tax and HELP stay individual, but family MLS combines the right parts of both incomes. See both assessments, test the 2026–27 thresholds, and compare the same super contribution through either partner.

Income taxMLSHELPSuper
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First Home Buyers
17 min read

First Home Super Saver vs a Savings Account: Is FHSS Worth It?

A $15,000 salary sacrifice does not cost the same as a $15,000 bank deposit. Compare equal take-home costs, estimate the after-tax FHSS release, and connect both paths to a home deposit plus stamp duty.

SuperIncome taxStamp duty
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Business & Tax
16 min read

Side Hustle Tax in Australia: GST, Income Tax and Super

The $75,000 GST line follows turnover, income tax follows profit, and no employer automatically funds your super. Model all three without mistaking revenue for spendable cash.

Income taxGSTSuper
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Tax & Income
13 min read

Second Job Tax in Australia: Why Two Incomes Can Leave a Bill

A second job has no special tax rate, but two payrolls cannot see your combined income. Calculate what the extra wage leaves after tax, Medicare and HELP — and whether scheduled withholding may still leave a bill.

Income taxHECS-HELPMedicare Levy Surcharge
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Money Decisions
15 min read

Where Should $10,000 Go: Your Mortgage, Super or HECS?

A $10,000 salary sacrifice does not cost the same as a $10,000 mortgage or HELP payment. This calculator equalises the take-home cost, then shows the interest, tax, indexation, access and risk trade-offs.

MortgageSuperHECS-HELPIncome tax
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Tax & Income
11 min read

Can a Pay Rise Push You Backwards? Tax, HELP and MLS Explained

A higher tax bracket cannot make a normal raise cost you money, and HELP is now marginal. But the Medicare Levy Surcharge is a genuine cliff: cross a tier without hospital cover and a small raise can reduce annual take-home. Calculate the full before-and-after result.

Income taxHECS-HELPMedicare Levy Surcharge
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Tax & Income
12 min read

Your Bonus After Tax: Cash vs Super vs Paying Down HECS

A bonus is taxed at your marginal rate — but for most full-time earners the rate that actually comes off it lands between 32% and 58% once the Medicare levy, the surcharge and your HELP repayment stack up. Here is what a bonus is really worth, and what each of the three things people do with it leaves behind.

Income taxSuperHECS-HELP
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