MegaCalcOnline Blog

Mortgage & Property

Rental Yield Calculator Australia: Gross vs Net Yield Explained

How to calculate rental yield on an Australian investment property — gross yield, net yield, and what counts as a good yield.

July 2026

Mortgage & Property

Rental Cash Flow Calculator: Is Your Property Positive or Negative?

How to work out the weekly cash flow on an Australian investment property — rent minus mortgage and all holding costs — and what positive vs negative

July 2026

Mortgage & Property

Investment Property ROI Australia: How to Calculate Your Real Return

How to calculate return on investment for an Australian property — cash-on-cash return, total return with capital growth, and why leverage magnifies b

July 2026

Mortgage & Property

Land Tax in Australia: How It Works State by State

How land tax works across Australian states — thresholds, the main residence exemption, why it is assessed on total holdings, and how trusts and forei

July 2026

Mortgage & Property

Rent vs Buy in Australia: The Honest Financial Comparison

A balanced look at renting versus buying a home in Australia — the true costs of each, the break-even time horizon, forced saving, and why the right a

July 2026

Mortgage & Property

Property Investment for Beginners in Australia: A Practical Guide

A practical starting guide to property investment in Australia — borrowing capacity, deposit, growth vs yield strategy, the full cost, tax, and the mi

July 2026

Mortgage & Property

Rental Property Tax Deductions Australia: What You Can Claim

A checklist of Australian rental property tax deductions — immediate deductions, the repairs vs improvements line, depreciation, apportioning, and the

July 2026

Mortgage & Property

How Much Deposit for an Investment Property in Australia?

How much deposit you need for an Australian investment property — why 20% is the benchmark, buying with less and paying LMI, using equity, and the dep

July 2026

Mortgage & Property

Positive vs Negative Gearing: Which Property Strategy Is Right?

Positive vs negative gearing explained for Australian property investors — income now versus growth later, the tax difference, cash-flow neutral prope

July 2026

Building

Retaining Wall Cost Australia: Materials, Drainage and Estimating

How to estimate retaining wall cost in Australia — calculating wall area, material options from sleepers to masonry, why drainage is essential, and wh

July 2026

Building

Decking Calculator Australia: Boards, Framing and Cost

How to calculate decking materials and cost in Australia — converting deck area to lineal metres of board, joist spacing, timber vs composite, fixings

July 2026

Building

Paint Calculator: How Much Paint Do I Need Per Room?

How to calculate how much paint you need — measuring wall area, coverage per litre, why two coats is the default, primer, ceilings and trim, and allow

July 2026

Building

Fence Cost Calculator Australia: Posts, Panels and the Dividing Fence Rule

How to estimate fencing cost in Australia — calculating posts and panels, material options, sloping ground and gates, and the dividing fence rule for

July 2026

Building

Plasterboard (Gyprock) Calculator: How Many Sheets Do I Need?

How to calculate plasterboard sheets for a room in Australia — measuring wall and ceiling area, converting to sheets, choosing wet-area and fire-rated

July 2026

Building

Excavation and Soil Removal: Estimating Volume and Cost

How to estimate excavation and soil removal — calculating volume in cubic metres, the bulking factor that makes soil expand, why removal costs more th

July 2026

Building

Flooring Cost Per Square Metre: The Complete Estimating Guide

How to estimate flooring cost in Australia — measuring area, wastage, material types from laminate to hardwood, and the hidden costs of subfloor prep,

July 2026

Financial

How to Create a GST Invoice in Australia: Requirements and Format

How to create a valid GST tax invoice in Australia — what a tax invoice must show, displaying GST correctly, the divide-by-11 rule, and what to do if

July 2026

Financial

BAS Preparation Checklist: A Step-by-Step Guide for Australian Business

A step-by-step BAS preparation checklist for Australian small business — what to gather, totalling GST on sales and purchases, working out the net pos

July 2026

Financial

Small Business Bookkeeping Checklist for Australia

A practical bookkeeping checklist for Australian small business — separating business and personal accounts, the ongoing routine, records to keep, GST

July 2026

Financial

Break-Even Analysis: How Many Sales Until You Profit?

How to calculate your business break-even point — fixed vs variable costs, contribution margin, the break-even formula, and using it to test pricing d

July 2026

Financial

Cash Flow Planning for Small Business: Why Profit Isn't Enough

How to plan cash flow for a small business in Australia — why cash flow matters more than profit, the timing gap, building a forecast, and setting asi

July 2026

Financial

Business Expense Tracking and the ATO Logbook in Australia

How to track business expenses in Australia for maximum deductions — what counts, the records the ATO expects, the vehicle logbook method, home-office

July 2026

Math

Percentages, Fractions and Ratios: The Everyday Maths Guide

Percentage change, reverse percentages, adding fractions and scaling ratios — the everyday maths people use, with worked examples.

July 2026

Math

Algebra and Notation: Quadratics, Scientific Notation and Number Systems

The quadratic formula and discriminant explained, plus scientific notation, matrices and binary made clear with step-by-step examples.

July 2026

Math

Understanding Statistics: Probability and Standard Deviation

How likely an event is, what data spread means, and the population-versus-sample difference that quietly changes the answer.

July 2026

Building

Concrete Calculator Australia: Slabs, Post Holes and Cost

How to work out concrete volume for a slab, footing or post hole — bags versus ready-mix, wastage, and what a load really costs.

July 2026

Building

Gravel and Mulch: How Much to Order and What You'll Pay

Estimating gravel, road base and garden mulch — cubic metres, converting to tonnes, bags versus bulk delivery, and spread depth.

July 2026

Building

Tiling and Roofing: Quantities, Wastage and Cost

Calculating tiles for a bathroom and materials for a roof — wastage allowance, the roof-pitch problem, and what drives the cost.

July 2026

Building

Stairs, Square Metres and Air Conditioning

Setting out a staircase to code, measuring floor area correctly, and sizing air conditioning in kW and BTU for an Australian room.

July 2026

Finance

How Does Compound Interest Work in Australia?

The formula, a worked $10,000 example, and why interest-on-interest turns modest savings into serious wealth over time.

July 2026

Finance

Compound Interest Calculator with Monthly Deposits

How regular saving changes the maths — worked Australian example showing $200/month growing to $34,294 over 10 years.

July 2026

Finance

Compound Interest Examples for Beginners (AU)

Four worked examples — savings account, term deposit, monthly compounding, and credit card debt — in plain Australian dollars.

July 2026

Finance

How to Calculate Compound Interest Yearly

Step-by-step guide using A = P(1+r)^t with a $8,000 worked example and year-by-year breakdown table.

July 2026

Super

Compound Interest for Retirement Savings in Australia

Starting super at 25 vs 35 — a 10-year head start is worth $73,600 at retirement. Here is the maths.

July 2026

Finance

Best Compound Interest Calculator Australia (Free)

What makes a compound interest calculator actually useful for Australians — and how to compare two products side by side.

July 2026

Finance

Compound Interest vs Simple Interest Explained

Same rate, same term — compound interest earns $240 more than simple interest on $6,000 over 6 years. Here is why.

July 2026

Finance

How Long Does Compound Interest Take to Double Money?

The Rule of 72 explained: divide 72 by the interest rate to estimate how many years it takes to double your money.

July 2026

Finance

Compound Interest on $10,000: Full Worked Example

Four scenarios — different rates, terms, and compounding frequencies — showing exactly how $10,000 grows over time.

July 2026

Finance

Compound Interest Investment Strategy Guide (AU)

Time, consistency, and low costs matter more than chasing the highest rate. The three levers of a compounding strategy.

July 2026

Finance

Family Budget Planner Australia: Free Template Guide

Worked example for a two-income family of four with $9,500 monthly income — including school fees and irregular costs.

July 2026

Finance

Weekly Household Budget Template (Free, AU)

How to convert monthly bills to weekly amounts correctly — and a full worked example for a $1,450/week household.

July 2026

Finance

Budget Calculator for Couples: Combine Finances (AU)

Proportional split vs 50/50 — worked example showing how two partners on different incomes can budget fairly.

July 2026

Finance

How Much Should I Save Every Month? (AU Guide)

The 20% rule, pay-yourself-first, and goal-based saving — with a worked house deposit example showing $1,146/month.

July 2026

Finance

Beginner Budgeting Guide Australia: Start Here

Five steps to your first budget, the 50/30/20 rule explained, and a worked example for a $4,200/month income.

July 2026

Finance

Personal Finance Budget Checklist (Free, AU)

A seven-step repeatable monthly checklist covering income, fixed costs, variable costs, debt, irregular expenses, and savings.

July 2026

Finance

Budget Planner for Students in Australia (Free)

Part-time income, Youth Allowance, HECS, textbooks and share housing — a student budget that accounts for all of it.

July 2026

Finance

Emergency Fund Calculator Guide (Australia)

How to calculate your target: essential monthly expenses × months of cover, then work backward to a monthly savings amount.

July 2026

Finance

How to Pay Off Credit Card Debt in Australia: Avalanche, Snowball, and Balance Transfer

Three proven strategies to clear credit card debt — with worked cost comparisons showing which saves the most interest.

June 2026

Finance

Debt Consolidation in Australia: When It Works and When It Costs You More

Debt consolidation only saves money if the new rate is lower AND you close the old accounts. The maths, the traps, and the step-by-step process.

June 2026

Finance

Personal Loans in Australia 2025-26: Rates, Eligibility, and What to Compare

Current personal loan rates from 7% to 20%+, secured vs unsecured differences, and how comparison rates reveal the true cost.

June 2026

Finance

Profit Margin vs Markup: The Difference Australian Businesses Get Wrong

Confusing margin and markup means systematic pricing errors. The formulas, worked examples, and how to set prices correctly.

June 2026

Finance

How Australian Inflation Affects Your Money: What the CPI Actually Means

CPI measures the average — but your inflation rate may differ significantly. How inflation affects savings, debt, and purchasing power.

June 2026

Finance

Business Loans in Australia 2025-26: Types, Rates, and What Lenders Require

From unsecured working capital loans to invoice financing, current business loan rates and what documents you need.

June 2026

Finance

How to Create a Budget in Australia: A Practical 2026 Guide Using the 50/30/20 Rule

Start with take-home pay not salary. Worked budget examples at common Australian income levels with category breakdowns.

June 2026

Finance

Lease vs Buy a Car in Australia: The Real Cost Comparison for 2025-26

Novated lease, finance lease, and car loan compared. The EV FBT exemption, residual value traps, and who each option suits.

June 2026

Superannuation

How Much Super Should I Have at My Age? Australian Benchmarks 2025-26

ASFA benchmarks vs ABS actual medians — and what to do if your super is behind for your age.

June 2026

Superannuation

Transition to Retirement (TTR): How It Works and Whether It's Worth It in 2026

Draw up to 10% of super while still working. The salary sacrifice strategy, tax treatment at different ages, and when TTR is worth setting up.

June 2026

Superannuation

How to Find Your Lost Superannuation in Australia (Step-by-Step Guide)

The ATO holds billions in lost super. Find yours through myGov in under 5 minutes — with the insurance warning before you consolidate.

June 2026

Superannuation

Self-Managed Super Funds (SMSF): Costs, Rules, and Who They Actually Suit

True annual SMSF costs ($2,000-$7,000+), the ATO's trustee obligations, what you can invest in, and the minimum balance threshold.

June 2026

Superannuation

Superannuation Death Benefits: Who Gets Your Super and How It's Taxed

Super does not automatically form part of your estate. Binding death nominations, eligible beneficiaries, and death benefit tax rates.

June 2026

Superannuation

Division 293 Tax: What It Is, Who Pays It, and How to Reduce It

An extra 15% tax on super contributions for incomes over $250,000. How it's calculated, how to pay it, and strategies to minimise it.

June 2026

Superannuation

Super Contribution Caps 2025-26: Concessional, Non-Concessional, and Carry-Forward Rules

$30,000 concessional cap, $120,000 non-concessional cap, bring-forward rules, and what happens when you exceed the limits.

June 2026

Superannuation

Account-Based Pension Australia: How Retirement Income Streams Work in 2025-26

Minimum drawdown rates by age, tax-free income from age 60, the $1.9M transfer balance cap, and how long your pension balance lasts.

June 2026

Mortgage

How Much Can I Borrow for a Home Loan in Australia? (2025–26)

How lenders calculate borrowing capacity using the APRA 3% buffer. Worked examples at $80k, $120k, and $200k income with HECS and credit card impacts.

June 2026

Mortgage

How to Save a House Deposit in Australia: A Realistic 2026 Plan

How much you actually need (not $200k), how long it realistically takes, and the fastest legitimate strategies to reach your target.

June 2026

Mortgage

Lenders Mortgage Insurance Australia: What It Costs and How to Avoid It

LMI cost tables at 5%, 10%, and 15% deposits on $500k-$1M properties, plus four legitimate ways to avoid paying it entirely.

June 2026

Mortgage

Offset Account vs Redraw Facility: Which Saves More on Your Mortgage?

Both save the same interest — but for investors, the tax implications are completely different. Worked examples and a clear comparison.

June 2026

Mortgage

Fixed vs Variable Home Loan Rate: Which Is Better in 2026?

With the RBA at 4.35% after three 2026 hikes, the fixed/variable choice looks different. Current rate data, break costs, and who each option suits.

June 2026

Health & Fitness

BMI Explained: What Your Number Actually Means

How BMI is calculated, what AIHW healthy weight categories mean, and where BMI genuinely falls short.

June 20269 min read

Health & Fitness

Body Fat Percentage: The Better Alternative to BMI

Why body fat percentage gives a clearer picture than BMI, plus the Army Body Fat method explained.

June 202610 min read

Health & Fitness

BMR vs TDEE: How Many Calories Do You Actually Burn?

The Mifflin-St Jeor formula explained with a full worked example.

June 20269 min read

Health & Fitness

How to Calculate Your Macros for Your Goals

Protein, carb and fat targets for cutting, maintaining and bulking.

June 202610 min read

Health & Fitness

Ideal Weight and Body Type: Why the Ideal Depends on Your Frame

Ideal weight formulas and the three somatotypes explained.

June 20268 min read

Health & Fitness

Pregnancy Due Date and Conception Calculators Explained

How due dates are calculated and what to expect from weight gain guidelines.

June 20269 min read

Health & Fitness

Period and Ovulation Tracking: Understanding Your Cycle

The phases of the menstrual cycle and how the fertile window is estimated.

June 20268 min read

Health & Fitness

One Rep Max & Target Heart Rate: Calculators for Serious Training

How to estimate 1RM safely and structure heart rate training zones.

June 20269 min read

Health & Fitness

Blood Alcohol Calculator: How BAC Actually Works in Australia

Standard drinks, the 0.05 limit, and why no calculator guarantees you are safe to drive.

June 20269 min read

Health & Fitness

GFR, Sleep & Body Surface Area: Three Health Numbers Worth Knowing

What eGFR measures, how sleep cycle calculators work, and what BSA is used for.

June 20269 min read

Tax & Crypto

How Much Tax Do You Pay on Crypto in Australia? (2025–26)

How much you pay on crypto gains depends on your income, holding period and whether the 50% CGT discount applies. Worked examples at every income level.

June 202610 min read

Tax & Crypto

How to Report Crypto on Your Australian Tax Return (myTax Guide)

Step-by-step guide to reporting crypto capital gains in myTax, including what the ATO already knows and what records you need.

June 202611 min read

Tax & Crypto

Are Crypto Losses Tax Deductible in Australia?

Capital losses on crypto can offset capital gains but not salary income. Covers carry-forward rules and the ATO wash sale warning.

June 20269 min read

Tax & Crypto

Gifting Crypto in Australia: What Tax Do You Pay?

Gifting crypto triggers CGT at market value — even though no money changes hands. Covers worked examples, recipient tax position and charity donations.

June 20268 min read

Tax & Crypto

How to Legally Minimise Your Crypto Tax in Australia (2025–26)

Seven ATO-compliant strategies to reduce crypto tax — including the 12-month discount, timing disposals, offsetting losses, and donating to charity.

June 202612 min read

Tax & Crypto

Best Crypto Tax Software for Australians 2025–26: Koinly, Syla & More

Comparing Koinly (best overall), Syla (best value) and other crypto tax platforms for Australian users — what each costs and who each suits.

June 202610 min read

Tax & Crypto

Free Crypto Tax Calculator Australia 2025–26 | Bitcoin & Crypto CGT

How to use the free MegaCalcOnline crypto tax calculator — what it covers, how it works, and what counts as a taxable disposal under ATO rules.

June 20267 min read

Tax & Crypto

Crypto Tax Australia 2025–26: The Complete Guide to Bitcoin and Cryptocurrency CGT

How the ATO taxes crypto, crypto-to-crypto swaps, the personal use asset exemption, and what the proposed 2027 CGT reform means for crypto investors.

June 202613 min read

Superannuation

Superannuation Withdrawal Rules 2025: When and How You Can Access Your Super

Preservation age table, conditions of release, transition to retirement pensions, early access on compassionate grounds, and tax on withdrawals explained.

July 202511 min read

Tax & Property

ATO Depreciation Rates 2025: Complete Guide for Property Investors and Business Owners

Building write-off, plant and equipment depreciation, prime cost vs diminishing value, quantity surveyor reports, and the second-hand asset restriction explained.

July 202510 min read

Employment & Tax

How to Read Your Australian Payslip: Every Line Item Explained

Gross pay, PAYG tax withheld, superannuation, common deductions and year-to-date figures explained line by line — plus red flags to watch for.

July 20259 min read

Property

First Home Buyer Grants Australia 2025: Every State Compared

Complete state-by-state breakdown of First Home Owner Grants and stamp duty concessions, plus the federal Home Guarantee Scheme for low-deposit buyers.

July 202511 min read

Tax & Employment

Fringe Benefits Tax (FBT) Australia 2025: What It Is and Who Pays It

FBT rate, who actually pays it, car fringe benefits explained, common exemptions, and the EV salary packaging exemption that's saving employees thousands.

July 20259 min read

Tax & Health

Medicare Levy Surcharge 2025–26: How to Avoid It and What It Actually Costs

2025-26 income thresholds, how the MLS differs from the standard Medicare levy, and a real cost comparison against private health insurance.

July 20259 min read

Tax

Australian Income Tax 2025–26: Complete Guide to Brackets, Offsets & Deductions

ATO tax brackets, LITO, Medicare levy, HECS repayment, and how to maximise your refund. Real examples at every income level.

June 202510 min read

Property & Tax

Negative Gearing Australia 2025: How It Works, The Tax Benefits, and Is It Worth It?

A complete guide to negative gearing — how the tax deduction works, what you can claim, depreciation explained, and whether the strategy suits your situation.

June 202511 min read

Tax & Investing

Capital Gains Tax Australia 2025: The Complete Guide to CGT on Shares, Property and Crypto

The 50% CGT discount, how to calculate your cost base, CGT on shares, property and crypto, and legal strategies to reduce your bill.

June 202513 min read

Tax & GST

GST Calculator Australia 2025: How to Add and Remove GST (With Examples)

How to add 10% GST to a price, the 1/11 rule for removing GST, GST registration thresholds, and your BAS obligations explained clearly.

June 202510 min read

Retirement

Age Pension Australia 2025: Rates, Income Test, Assets Test and How Much You Can Get

Current Age Pension rates, how the income and assets tests work, deeming explained, and strategies to maximise your Centrelink entitlements.

June 202512 min read

Tax & Deductions

Work From Home Tax Deductions Australia 2025: The 67 Cents Per Hour Method Explained

How the 67c/hr fixed rate works, what it covers, full-year record-keeping requirements, and when the actual cost method gives a bigger deduction.

June 202510 min read

Tax & Education

HECS-HELP Repayment 2025–26: Thresholds, Rates, and How to Pay Off Your Debt Faster

Complete 2025-26 HECS repayment threshold table, the indexation issue explained, voluntary repayment strategies, and rules for Australians living overseas.

June 202511 min read

Superannuation

Salary Sacrifice into Super 2025–26: How Much Tax Can You Save?

Salary sacrificing into super is taxed at 15% instead of your marginal rate. We explain the $30,000 cap, carry-forward rules, and Division 293 for high earners.

June 20258 min read

Property

Stamp Duty Australia 2025: Every State and Territory Compared

Full stamp duty rate tables for NSW, VIC, QLD, WA, SA, TAS and ACT. First home buyer concessions and the FHOG by state.

June 20259 min read

Tax & Employment

Redundancy Pay Australia 2025: Your Complete Entitlements Guide

NES minimum entitlements, the tax-free component ($12,524 + $6,264/yr), notice period, leave payouts, and what to do with your redundancy payout.

June 20258 min read