Monthly Budget Calculator
A monthly budget calculator helps you allocate your take-home income across fixed expenses (rent, loan payments), variable spending (groceries, utilities), and savings goals. Seeing the numbers in one place makes it easier to spot where money is leaking and make intentional trade-offs.
How this calculator works
The calculation is straightforward: Net = Income − Total Expenses. A positive result means you have a surplus; a negative result means you are spending more than you earn. The useful part is breaking expenses into categories so you can see which category is the biggest drain relative to your income.
Formula reference: CFPB: Making a budget
Example
Example: $5,000 take-home income minus $1,400 rent, $450 car payment, $600 groceries/dining, $200 utilities, $300 subscriptions/entertainment, and $300 savings contribution leaves a $1,750 monthly surplus.
Frequently asked questions
- Should I use gross or net income?
- Use net (take-home) income — the amount deposited into your bank account after taxes and payroll deductions. Budgeting against gross income leads to overspending because you cannot spend money that never reaches your account.
- What is the 50/30/20 rule?
- A popular rule of thumb: 50% of take-home pay for needs (housing, food, utilities), 30% for wants (dining out, subscriptions, hobbies), and 20% for savings and debt repayment beyond minimums. It is a starting point, not a strict requirement.
- How often should I revisit my budget?
- Monthly at minimum. Compare what you planned to what you actually spent. Budgets that are never checked tend to drift away from reality within a few months.
This calculator provides estimates for general informational purposes only and does not constitute financial, tax, or legal advice. Always confirm important numbers with a qualified professional or your lender/institution before making a decision.