Zero-Based Budget Calculator

About this calculator

A zero-based budget is a budgeting method where every unit of income is deliberately assigned to a category — spending, saving, debt payoff, or investing — until income minus all assignments equals zero. Nothing is left floating unaccounted for; the goal isn't to spend everything, it's to give every dollar (or lira) a specific job, even if that job is 'sit in savings.'

This calculator totals up everything you've assigned across your budget categories and subtracts it from your income to show what's still unassigned, so you can see at a glance whether you've over-allocated, under-allocated, or hit zero exactly. It's the core tool behind popular zero-based budgeting systems and is used by anyone who wants tighter control over where their money goes each month rather than tracking spending after the fact.