50/30/20 Budget Calculator
Split your after-tax income into needs (50%), wants (30%), and savings (20%) using the popular budgeting rule.
The 50/30/20 rule is the simplest budgeting framework: 50% of after-tax income for needs (rent, food, insurance, minimum debt payments), 30% for wants (dining out, entertainment, hobbies), and 20% for savings and extra debt payments. Popularized by Senator Elizabeth Warren, it gives you a clear target without the complexity of tracking every dollar. This calculator shows exactly how to split your income.
On $5,000/month: $2,500 for needs, $1,500 for wants, $1,000 for savings. Automate the savings transfer on payday for best results.
Your 50/30/20 breakdown
Needs (50%)
$2,500
Rent, food, insurance, minimums
Wants (30%)
$1,500
Dining, entertainment, hobbies
Savings (20%)
$1,000
Emergency fund, investments, extra debt
How to use this calculator
Monthly after-tax income — Your take-home pay after all deductions. This is the money you actually have to allocate.
Real-world examples
$5K/month income
Needs: $2,500 (rent $1,500 + food $500 + insurance $300 + utilities $200). Wants: $1,500 (dining $300 + entertainment $200 + subscriptions $100 + shopping $400 + misc $500). Savings: $1,000 (401k $500 + emergency fund $200 + investments $300).
$3K/month income
Needs: $1,500 (rent $900 + food $300 + insurance $200 + utilities $100). Wants: $900. Savings: $600. In high-cost cities, needs may exceed 50% — adjust to 60/20/20.
$10K/month income
Needs: $5,000. Wants: $3,000. Savings: $2,000. At 20% savings rate, you invest $24K/year — on track for FIRE in ~22 years. Increase to 30% and cut that to ~17 years.
Formula & Methodology
50/30/20 allocation
- Needs = Essential expenses you can't avoid
- Wants = Discretionary spending that improves quality of life
- Savings = Emergency fund, investments, and extra debt payments
Assumptions & limitations
- Based on after-tax (net) income, not gross income.
- The 20% savings includes all investments, emergency fund contributions, and extra debt payments above minimums.
- In high-cost areas, needs may exceed 50%. Adjust ratios to fit your situation.
- This is a guideline, not a rigid rule. The key is being intentional with your allocation.
Frequently asked questions
What is the 50/30/20 rule?
A simple budgeting framework: 50% of after-tax income goes to needs (rent, groceries, insurance, minimum debt payments), 30% to wants (dining out, entertainment, hobbies), and 20% to savings and extra debt payments.
Who created the 50/30/20 rule?
It was popularized by Senator Elizabeth Warren and her daughter Amelia Warren Tyagi in their book 'All Your Worth: The Ultimate Lifetime Money Plan' (2005).
What counts as a 'need'?
Rent/mortgage, utilities, groceries, health insurance, car payments, minimum debt payments, and other essentials you can't avoid.
Is 50/30/20 realistic?
In high-cost-of-living areas, needs may exceed 50%. Adjust the ratios to fit your situation — the rule is a starting point, not a straitjacket.
What if I can't save 20%?
Start where you are. Even 5–10% is better than nothing. Automate the savings transfer on payday and increase by 1% every few months. You'll barely notice the difference.