50/30/20 Budget Calculator & Planner
Instantly allocate your after-tax income into needs, wants, and savings using the proven 50/30/20 rule. Free, simple personal finance tool.
Calculate Your Ideal Monthly Budget
Enter your income details below to instantly see how much you should allocate to essential needs, discretionary wants, and future savings or debt repayment.
Income Details
Enter your after-tax (net) income for accurate budgeting
Budget Allocation
Your recommended monthly budget breakdown
What Goes in Each Category?
Use this guide to categorise your expenses correctly. Some items may blur the lines, so use your best judgment based on your personal financial goals.
| 50% Needs (Essentials) | 30% Wants (Discretionary) | 20% Savings & Debt |
|---|---|---|
| Rent / Mortgage | Dining out & Takeaways | Emergency Fund Contributions |
| Basic Groceries | Entertainment & Hobbies | Retirement Accounts (e.g., Pension) |
| Utilities (Electric, Water, Gas) | Subscription Services (Netflix, etc.) | Extra Debt Repayments (beyond minimum) |
| Basic Transportation / Car Payment | Shopping & Non-essential Clothing | Investments (Stocks, ISAs) |
| Minimum Debt Payments | Travel & Vacations | Saving for Specific Goals (House, Car) |
50/30/20 Budget Calculator FAQ
Everything you need to know about the 50/30/20 budgeting rule, categorising expenses, and achieving financial balance.
The 50/30/20 rule is a simple budgeting framework that suggests dividing your after-tax income into three categories: 50% for Needs (essential expenses), 30% for Wants (discretionary spending), and 20% for Savings and Debt Repayment.
The 50/30/20 budgeting rule was popularised by US Senator Elizabeth Warren and her daughter Amelia Warren Tyagi in their 2005 book, ‘All Your Worth: The Ultimate Lifetime Money Plan’.
You should always use your net income (after-tax income). This is the actual amount of money that hits your bank account and is available for you to allocate towards your expenses, wants, and savings.
If your needs exceed 50%, you may need to temporarily adjust the ratios (e.g., 60/20/20) while focusing on increasing your income or reducing fixed costs like housing or transportation. The 50/30/20 rule is a guideline, not a strict law.