About this Budget Calculator
The 50/30/20 budget rule suggests spending about 50% of take-home pay on needs, 30% on wants, and 20% on savings and debt prepayment. This budget calculator applies that split instantly.
It is a starting framework, not a law. High-rent cities may need a higher needs percentage; the important part is protecting a consistent savings rate.
How to use this calculator
- Enter your monthly take-home income (after tax and mandatory deductions).
- Keep 50/30 as a default, or tweak needs and wants percentages.
- Treat the savings line as SIPs, emergency fund top-ups and extra loan payments.
- Track actual spending for one month and adjust categories.
Formula used
Needs = income × needs%. Wants = income × wants%. Savings = income − needs − wants (error shown if percentages exceed 100%).
Practical tips
- Automate investing on payday so savings happen before discretionary spending.
- List true needs honestly — subscriptions you rarely use belong in wants.
- If debt interest is high, temporarily raise the savings/debt bucket above 20%.
Frequently asked questions
What is the 50/30/20 rule?
It is a simple budgeting guideline: roughly half of income for needs, 30% for wants, and 20% for saving or paying down debt faster.
What counts as a need?
Housing, groceries, utilities, insurance, basic transport and minimum debt payments are typical needs.
What if rent is more than 50%?
Raise the needs percentage and cut wants until you stabilise. The rule is a guide — cash-flow reality comes first.
Where do SIPs fit?
SIPs usually come from the savings and investing bucket. Start there after essential bills are covered.
