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Rent vs. Buy Calculator

Compare the true cost of renting vs. buying a home over time, including equity, opportunity cost, and hidden costs.

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How long you plan to stay

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Historical average is 3–5% per year

How to Use This Rent vs. Buy Calculator

This calculator compares the true long-term cost of renting against buying, factoring in mortgage repayments, home appreciation, stamp duty, maintenance, and the opportunity cost of your down payment.

  • Home Purchase Price — the asking price of the property you’re considering
  • Down Payment (%) — your equity contribution (20% avoids LMI in most cases)
  • Mortgage Interest Rate — the current rate from your lender
  • Monthly Rent — what you currently pay to rent
  • Time Horizon — how many years you plan to stay (the most critical input of all)
  • Home Appreciation — expected annual growth in property value (Australian average: 3–5%)
  • Understanding Your Results

  • Verdict — whether buying or renting comes out ahead over your chosen period
  • Monthly Mortgage Payment — principal + interest only, not including rates, insurance, or body corporate
  • Total Cost to Buy — mortgage payments + stamp duty + maintenance over the full period
  • Net Buying Cost — total buying costs minus what you’d sell the home for
  • Total Rent Cost — all rent paid plus the opportunity cost of your down payment if invested instead
  • How Long You Stay Is Everything

    Transaction costs (stamp duty, legal fees, agent commission on sale) are roughly 6–8% of the property price and can’t be recovered until the home has appreciated past them.

  • Under 3 years: Renting almost always wins
  • 3–5 years: Close call — depends on your market and appreciation rate
  • 5+ years: Buying typically wins as equity and appreciation compound
  • What This Calculator Assumes

    Stamp duty is estimated at ~4%. Maintenance at 1% of value per year. Rent growth at 3% annually. The opportunity cost of the down payment is calculated at 7% (long-run stock market return). Adjust the appreciation rate to reflect your specific city and current conditions.

    Formula

    Net Buy Cost = Upfront + Mortgage Payments + Running Costs − Future Home Value | Rent Cost = Total Rent + Opportunity Cost of Down Payment

    Frequently Asked Questions

    Is it always better to buy than rent in Australia?

    No — it depends on how long you plan to stay, local property prices, and the rent-to-price ratio. In expensive cities like Sydney and Melbourne, buying is often much more expensive short-term. Over 10+ years, buying has historically outperformed renting for most Australians.

    What is the opportunity cost of a down payment?

    The money used as a down payment could instead be invested in shares or other assets. This calculator assumes a 7% annual return on that money if you rented instead — a significant ongoing cost that many rent-vs-buy comparisons ignore.

    How much does stamp duty add to buying costs?

    Stamp duty varies by state and purchase price. On a $650,000 property in NSW it’s approximately $25,000–$27,000. First home buyers may be fully exempt below certain thresholds. Use our dedicated Stamp Duty Calculator for exact figures by state.

    What ongoing costs should I budget for as a homeowner?

    Budget 1–2% of the property’s value per year for maintenance and repairs. Add council rates (~$1,500/yr), home and contents insurance (~$1,500/yr), and any strata or body corporate fees. These are often underestimated by first-time buyers.

    How long do I need to stay to break even on buying?

    Generally 5–7 years in most Australian capital cities, due to upfront costs like stamp duty and selling agent commissions (~2%). In high-growth markets with strong appreciation, the break-even can be shorter; in slow markets, longer.

    Does renting mean I’m throwing money away?

    No — this is a common myth. Rent pays for housing, just as mortgage interest and maintenance do. Renters who invest their down payment and the difference between rent and mortgage costs can build significant wealth. The best choice depends on your specific numbers.

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