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The 50/30/20 Rule: Can It Help You Save for a Property Deposit?

By Coposit
29/09/2025

Saving for a property deposit can feel overwhelming, especially with rising house prices and upfront costs like stamp duty. One budgeting method that has stood the test of time is the 50/30/20 rule. It is simple, flexible, and can help you stay disciplined with your money while working towards home ownership.

What Is the 50/30/20 Rule?

The 50/30/20 rule divides your after-tax income into three categories:

  • 50% Needs: Rent, food, transport, utilities, and insurance.
  • 30% Wants: Dining out, entertainment, shopping, and holidays.
  • 20% Savings and Debt Repayment: Deposits, investments, or paying down loans.

It is a straightforward guide that gives structure without being overly restrictive.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

Auburn Square | Off the plan Auburn | Secure with $10k and $430 x 100 weeks

Why the 50/30/20 Rule Works for Property Goals

When you are saving for a property deposit, consistency matters more than speed. The 50/30/20 rule helps you build that habit:

  • Your 20% savings portion can go straight into your deposit account.
  • By capping your wants at 30%, you avoid lifestyle creep.
  • Keeping needs at 50% forces you to assess whether you are overspending on rent or transport.

Over time, these small shifts create real momentum towards your deposit target.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

Horizon Hurstville | Off the plan Hurstville | Secure with $10k and $487 x 47 weeks

Adapting the Rule to the Property Market

Australia’s property market is competitive, and deposits are often higher than people expect. You may need to tweak the formula:

  • 40/30/30: Put a larger share into savings if you want to speed things up.
  • 45/30/25: Balance debt repayments with deposit growth.
  • Temporary sacrifices: Reduce the “wants” category to 20% or less while you focus on your savings goal.

The key is to stay flexible while still keeping the structure of the rule.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

The Edmondson Collection | Off the plan Edmondson Park | Secure with $10k and $1,500 x 14 weeks

Using the 50/30/20 Rule with Coposit

Even with discipline, saving a full 10% or 20% deposit upfront can take years. Coposit makes the process easier. With Coposit, you can secure an off the plan property with as little as $10,000 upfront. The rest of the deposit is paid in weekly instalments while the property is being built. This means you can keep following the 50/30/20 rule and direct your 20% savings portion into Coposit payments, rather than waiting years to save a full lump sum.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

The Markets Residences | Off the plan Belconnen | Secure with $10k and $750 x 30 weeks

Practical Tips for First Home Buyers

If you are a first home buyer using the 50/30/20 rule, try these strategies:

  • Automate your 20% savings so it leaves your account on payday.
  • Keep a separate account just for your property deposit.
  • Use budgeting apps to track where your 30% wants are going.
  • Revisit your numbers every six months to see if you can increase your savings share.
  • Look into government schemes that support first home buyers with grants or reduced stamp duty.
Coposit | Buy with $10K | Off the plan property | Save for a home deposit

Argo | Off the plan Castle Hill | Secure with $10k and $902 x 27 weeks

Is the 50/30/20 Rule Right for You?

The 50/30/20 rule will not suit everyone, but it provides a clear starting point. If you are serious about saving for a home, use it as a guide and adjust to your circumstances. The combination of disciplined budgeting and smart tools like Coposit can make the journey to property ownership much faster and less stressful.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

Rouse Hill, Bathla | Off the plan Rouse Hill | Secure with $10k and $458 x 35 weeks

Saving for a Property Deposit with the 50/30/20 Rule in Australia

The 50/30/20 rule can help first home buyers and investors stay on track with savings while balancing lifestyle needs. By putting at least 20% of income into savings and using solutions like Coposit for off the plan properties, you can move closer to owning your home without waiting years to build a full deposit.

Coposit | Buy with $10K | Off the plan property | Save for a home deposit

East + Cowper, Granville | Off the plan Granville | Secure with $10k and $473 x 92 weeks

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