Free Monthly Budget Planner
Free online budget planner, personal budget planner and monthly budget calculator. Track income and expenses by category with this free budget tracker. Works as a family budget calculator and income expense calculator with this free budget tracker. Features the 50/30/20 rule calculator, savings goal tracker, visual charts and CSV export. Auto-saves to your browser. No login, 100% private - your data never leaves your device.
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The 50/30/20 Budget Rule Explained
The 50/30/20 rule is a straightforward personal budget framework that divides your after-tax monthly income into three spending categories. This free budget tracker (budget tracker free to use with no account) was built to make the 50/30/20 rule actionable. It was popularised by US Senator Elizabeth Warren in the book All Your Worth: The Ultimate Lifetime Money Plan. The rule gives you a simple target allocation without requiring you to track every individual transaction.
How to apply the 50/30/20 rule to your monthly budget
Start with your monthly take-home pay after tax and National Insurance (or equivalent deductions). Multiply by 0.50 to find your needs ceiling, by 0.30 for your wants ceiling, and by 0.20 for your savings floor. If your needs exceed 50%, look for ways to reduce fixed costs — a cheaper flat, refinancing debt, or switching energy provider. If your wants exceed 30%, identify subscriptions or habits to cut. The budget planner above calculates these thresholds automatically and shows colour-coded progress bars so you can see at a glance where you stand.
When the 50/30/20 rule doesn't fit
The rule is a guide, not a law. High-cost cities like London, San Francisco or Sydney often require more than 50% of income on housing alone. Lower-income earners may need a higher proportion of income for needs. Higher earners may be able to save more than 20%. The rule works best as a diagnostic tool — if your needs are consuming 70% of income, the problem and the solution become clear, regardless of whether 50% is achievable right now.
50/30/20 vs zero-based budgeting
Zero-based budgeting assigns every unit of currency to a named purpose until income minus allocations equals zero. It is more granular than 50/30/20 but requires more tracking effort. The 50/30/20 rule is better for people who want a simple, low-maintenance budget structure. Zero-based budgeting is better for people who need complete visibility into every expense category or who have specific short-term financial goals. This budget planner supports both approaches — use the category tags for 50/30/20 analysis, or add as many granular expense lines as you need for zero-based tracking.
Budget Categories: Needs vs Wants vs Savings
Understanding the distinction between needs vs wants is the foundation of the 50/30/20 budget rule. Needs are expenses you cannot avoid; wants are discretionary spending; savings are future-focused allocations.
One of the most common questions when starting a budget is how to classify each expense. Here is a reference guide for the most common budget categories aligned to the 50/30/20 framework:
| Category | Type | Examples | Typical % of income |
|---|---|---|---|
| Housing | Need | Rent, mortgage, council tax, home insurance, maintenance | 25-35% |
| Utilities | Need | Electricity, gas, water, broadband, mobile phone | 5-8% |
| Groceries | Need | Supermarket food shopping, household essentials | 5-10% |
| Transport | Need | Car payment, fuel, public transport, parking, car insurance | 5-10% |
| Health | Need | Health insurance, prescriptions, essential dental | 2-5% |
| Dining & coffee | Want | Restaurants, takeaways, cafes, work lunches | 3-8% |
| Entertainment | Want | Netflix, Spotify, cinema, events, hobbies | 3-7% |
| Clothing | Want | Non-essential clothing and accessories | 2-5% |
| Holidays | Want | Travel, accommodation, experiences | 2-8% |
| Emergency fund | Saving | 3-6 months of expenses in accessible savings | 5-10% |
| Retirement | Saving | Pension, 401k, SIPP contributions | 5-10% |
| Investments | Saving | ISA, index funds, shares, property deposit | 5-10% |
| Debt repayment | Saving | Credit card, student loan, personal loan (above minimum) | Variable |