The Finance Algorithm
§ Tool · tier 1 · independent

50/30/20 Budget Planner.

Allocate your income according to the popular 50/30/20 rule: 50% Needs, 30% Wants, 20% Savings. Track and optimise your monthly finances easily.

CalculatorFree, no signupOn-deviceupd May 2026
Inputs
Your numbers
$
$6k

Enter your total net (after-tax) income per month.

Math updates live as you change inputs · AI runs on submit

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Move the sliders or type in the form on the left — the math updates live as you go. Click Get AI verdict when you want a written analysis.

The 50/30/20 rule is a simple, powerful budgeting strategy to help Australians manage their money. It recommends dividing your after-tax income into three categories: 50% for Needs (essentials like rent and groceries), 30% for Wants (lifestyle expenses), and 20% for Savings (including debt repayments). This tool makes it easy to break down your monthly income and see exactly how much to allocate to each category. Whether you’re new to budgeting or looking for a fresh approach, this planner helps build savings, control discretionary spending, and make smarter financial decisions.

§ Worked examples

Real-world scenarios

Young professional budgeting for rent & travel

Sarah takes home $4,000/month. The tool suggests $2,000 for needs, $1,200 for wants, and $800 for savings. She adjusts 'wants' to save for a Bali trip, tracking progress monthly.

Inputs

income:4,000

She sees she should limit discretionary spending to $1,200/month, helping her resist impulse online shopping.

Family with mortgage and big grocery bills

The Patels earn $6,200/month after tax. Using the planner, they see $3,100 for needs, $1,860 for wants, $1,240 to savings. They refine categories to stay on track and build a holiday fund.

Inputs

income:6,200

Having clear targets helps the family discuss and agree on priorities, reducing money stress.

§ FAQ

Questions Australians ask

§ Glossary

Plain-English definitions

After-tax income
Your income after all taxes and deductions—what you actually receive in your bank account.
Needs
Essential expenses required for living: rent, bills, groceries, minimum debt repayments.
Wants
Non-essential spending that enhances lifestyle: entertainment, dining, travel, luxury.
Savings
Money set aside for future use, emergencies, or debt repayments over the minimum required.