Free budget calculator
Estimate what's left after bills, goals, and tax set-asides — your safe-to-spend before the next payday. Sign up free to save budgets, sync receipts, and share spaces.
How to build a simple monthly budget
A budget calculator shows what's left after income, bills, savings, and tax — so you know your safe-to-spend number before payday.
Five simple steps
- 1
Enter your pay-cycle income
Use take-home pay for the period you're planning — weekly, biweekly, or monthly.
- 2
List fixed bills and must-pays
Rent, utilities, insurance, minimum debt payments — anything that hits every cycle.
- 3
Set goals and tax set-asides
Savings targets and estimated tax keep you from overspending money that isn't really free.
- 4
Read your safe-to-spend number
What's left is your flexible spend for the cycle. Divide by days left for a daily guardrail.
- 5
Sign up to track it for real
Guests can estimate freely. Create a free SpendBeaver account to save budgets, sync receipts, and share spaces.
What to include
Income for the cycle
Match the calculator window to how you actually get paid.
Fixed costs
Predictable bills first — they shrink safe-to-spend before fun money.
Goals & buffers
Treat savings like a bill so leftover cash is honest.
Daily / weekly pace
A per-day number stops mid-cycle blowouts.
FAQ
Is this budget calculator really free?
Yes. Run unlimited estimates in your browser. Sign up free when you want to save, sync devices, or invite a household.
Do I need an account to see results?
No — results update live. Account unlocks saving, receipt capture, and shared spaces.
What's the difference between a budget and an expense tracker?
A budget plans the cycle ahead. An expense tracker logs what you already spent. Use both: plan with the calculator, then log spends as they happen.
Is my data private?
Guest calculations stay in your browser session. Signed-in data lives in your SpendBeaver space with your privacy controls.
Ready to go further with SpendBeaver?
Free to start. Sign up to save, sync, and share spending with your household.
