Budget Calculator
Create a personal budget and see where your money goes. Use the 50/30/20 rule or customize your spending categories.
Budget Summary
Monthly Surplus
$1,250
Available to save or spend
Savings Rate
15.0%
Good
Monthly Income
Enter your after-tax income
Needs (Essential Expenses)
Housing, utilities, food, transportation
Wants (Discretionary)
Entertainment, dining, shopping
Savings & Investments
Emergency fund and retirement
Budget Breakdown
Visual spending allocation
Category Analysis
Spending by category with recommendations
Budget Summary
Monthly Surplus
$1,250
Available to save or spend
Savings Rate
15.0%
Good
What if your monthly income was
See how income changes affect your budget allocations and savings rate
Personalized Insights
3 insights based on your inputs
Good Savings Progress
Your 15.0% savings rate is solid. Increasing by 5.0% would reach the optimal 20% target.
Essential Expenses High
Your needs consume 53% of income, exceeding the 50% guideline. Look for ways to reduce housing, transportation, or insurance costs.
Monthly Surplus
You have $1,250 unallocated each month. That's $15,000 annually you could invest or save!
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Frequently Asked Questions
The 50/30/20 rule divides after-tax income into: 50% needs (housing, food, utilities, transportation), 30% wants (entertainment, dining out, hobbies), and 20% savings/debt repayment. It's a simple framework to balance living expenses with financial goals.
The general rule is to spend no more than 28-30% of gross income on housing (rent/mortgage, taxes, insurance). Some experts recommend 25% of take-home pay. In high-cost areas, you may need to adjust, but try to offset with lower spending elsewhere.
Financial experts recommend saving at least 20% of income (including retirement contributions). This breaks down as: 10-15% for retirement, 5-10% for other goals (emergency fund, down payment). Start with what you can and increase by 1% every few months.
Use budgeting apps (Mint, YNAB, Personal Capital), spreadsheets, or the envelope method. Track for 1-3 months to understand patterns. Categorize expenses as needs vs wants. Review weekly and adjust. Automate savings to "pay yourself first."
First, separate needs from wants and cut wants. Look for ways to reduce needs (refinance, negotiate bills, downsize). Increase income with side work. Prioritize high-interest debt. Build a $1,000 emergency fund first, then tackle debt systematically.
How this works
Applies the 50/30/20 budgeting rule (50% needs / 30% wants / 20% savings) to your after-tax income. Adjust the splits if your situation (e.g. high cost of living, aggressive savings) argues for a different allocation.
What this tool can’t do
When to consult a professional
This is a software engineering tool, not financial advice. Run the math here, then take the result to a certified financial planner, CPA, or your bank before making a decision that materially affects your money.
Sources
- [1]Consumer Financial Protection Bureau (CFPB)Official sourceconsumerfinance.govAccessed Apr 21, 2026
US consumer finance regulator; authoritative on mortgage disclosures, APR rules, credit cards.
Full-stack software engineer specializing in embedded systems, web architecture, and AI/ML. Founder of Practical Web Tools. Built the gesture-controlled drone IP acquired by KD Interactive (Aura Drone, sold on Amazon).
Budget Summary
Monthly Surplus
$1,250
Available to save or spend
Savings Rate
15.0%
Good