50/30/20 Budget Calculator
Enter your monthly after-tax income below and instantly see how to allocate your money using the popular 50/30/20 budgeting rule — the simplest way to take control of your finances.
Track Your Budget Automatically
Knowing your 50/30/20 split is the first step. The next step is actually tracking where your money goes every month. Our Notion Budget Tracker makes it effortless.
Get the Notion Budget Tracker →What Is the 50/30/20 Budget Rule?
The 50/30/20 rule is a simple budgeting framework popularized by Senator Elizabeth Warren in her book All Your Worth. It divides your after-tax income into three categories:
- 50% for Needs — essential living expenses you cannot avoid
- 30% for Wants — lifestyle spending that makes life enjoyable
- 20% for Savings & Debt Repayment — building your financial future
This rule works because it is easy to remember and flexible enough for most income levels. You do not need to track every single purchase — just make sure each category stays within its target percentage.
How to Use This Calculator
- Enter your monthly after-tax income (the amount that hits your bank account, not your gross salary).
- The calculator instantly shows how much to allocate to Needs, Wants, and Savings.
- Compare these numbers to your current spending to find areas for adjustment.
Tips for Making the 50/30/20 Rule Work
- Automate your savings — set up automatic transfers on payday so you never forget.
- Review monthly — spending patterns shift; re-evaluate every 30 days.
- Adjust the ratios — if you live in an expensive city, 60/20/20 might be more realistic. The key is having a system.
- Track with a tool — a spreadsheet or Notion budget tracker keeps you honest.
Related Resources
- How to Apply the 50/30/20 Rule in Notion
- Common Budgeting Mistakes to Avoid
- Monthly Budget Checklist
- Best Notion Budget Templates in 2026
Frequently Asked Questions
Should I use gross or net income?
Always use your net (after-tax) income — the amount deposited into your bank account. Using gross income will overestimate what you have available.
What if my needs exceed 50%?
This is common in high-cost-of-living areas. Consider a modified ratio like 60/20/20 or 70/15/15. The important thing is to have a plan and stick to it. Look for ways to reduce fixed costs — refinancing, downsizing, or switching providers.
Does the 50/30/20 rule work for low incomes?
The percentages may need adjusting, but the framework still helps. Even saving 5-10% is better than nothing. Focus on covering needs first, then gradually increase savings as your income grows.
Where does debt repayment go?
Minimum payments on debt (credit cards, student loans) count as Needs. Any extra payments above the minimum go into the Savings & Debt category.
Is this rule good for couples?
Yes. Combine both after-tax incomes and apply the rule to your household total. This gives you a shared budget framework while allowing flexibility within categories.