Plan your monthly budget — track income, expenses and savings.
Monthly Income
Monthly Expenses
A budget calculator is a personal finance tool that helps you plan, track, and manage your income and expenses. By categorizing your spending and comparing it to your income, our free online budget planner shows you where your money goes and helps identify areas where you can save more.
The popular 50/30/20 rule divides your after-tax income into three categories: 50% for needs (rent, groceries, utilities, EMIs), 30% for wants (dining out, entertainment, shopping), and 20% for savings and debt repayment. This simple framework is an excellent starting point for anyone new to budgeting.
List all income sources. List all fixed expenses (rent, EMI, subscriptions). List variable expenses (food, transport, entertainment). Subtract total expenses from income. If the result is negative, identify areas to cut. Allocate remaining money to savings and investments before spending on wants.
Zero-based budgeting assigns every rupee of income a specific purpose so income minus expenses equals zero. This does not mean spending everything — savings and investments count as expenses in this system. This method gives maximum control over your money and prevents mindless spending.
The biggest budgeting mistakes are: being too restrictive (unsustainable), not tracking spending (guessing instead of knowing), forgetting irregular expenses (annual insurance, car maintenance), and not reviewing the budget monthly. A good budget is flexible, realistic, and reviewed regularly.
One of the most widely recommended budgeting frameworks, popularized by Senator Elizabeth Warren before her political career (in a personal finance book she co-authored), suggests allocating 50% of after-tax income to needs (housing, groceries, utilities), 30% to wants (entertainment, dining out, hobbies), and 20% to savings and debt repayment beyond minimums. This framework works well as a starting point precisely because it's simple enough to actually stick to, compared to more granular budgeting systems that require tracking dozens of individual spending categories.
The exact percentages aren't a strict rule - someone in a high cost-of-living area might need to allocate well over 50% to needs, while someone aggressively paying down debt might push savings above 20%. The framework's real value is providing a reference point to check whether spending in each category is roughly proportionate, rather than a target that must be hit exactly.
A budget only works if it reflects real spending patterns - many people underestimate discretionary spending (especially small recurring purchases like subscriptions or daily coffee) until they actually track it for a month, which is often the single most useful step in making any budget framework realistic.
Several popular budgeting frameworks offer different approaches to allocating income. The 50/30/20 rule suggests allocating 50% of after-tax income to needs, 30% to wants, and 20% to savings and debt repayment, offering a simple starting framework without requiring detailed line-item tracking. Zero-based budgeting requires assigning every dollar of income a specific job — expenses, savings, or debt — until the entire income is accounted for, offering more precise control at the cost of more time and effort to maintain.
Neither framework is objectively superior; the right choice depends on personal preference for structure versus flexibility, and some people find success blending elements of both approaches — using percentage-based guidelines for broad categories while zero-basing specific problem areas like discretionary spending.
Effective budgeting distinguishes between fixed expenses (rent, insurance, loan payments — largely the same amount each month) and variable expenses (groceries, entertainment, dining out — amounts that fluctuate and offer more immediate control). Since fixed expenses are harder to adjust quickly, most realistic budget improvements come from managing variable expenses, making it valuable to track exactly where variable spending actually goes each month rather than estimating it.
A budget calculator helps you track your income and expenses to understand where your money goes and plan your finances better.
The 50/30/20 rule suggests spending 50% on needs, 30% on wants, and saving 20% of your income. It is a simple budgeting framework.
Review your budget at least once a month to track actual spending versus planned spending and make adjustments as needed.
Include all fixed expenses (rent, EMI, insurance), variable expenses (food, utilities, transport), and discretionary spending (entertainment, dining out).
No, it's a general guideline - actual percentages should be adjusted based on your specific cost of living, debt situation, and financial goals.
Needs are essential expenses like housing, groceries, and utilities, while wants are discretionary spending like entertainment and dining out - the line can be somewhat personal depending on lifestyle.
Minimum debt payments are typically treated as needs, while extra payments beyond the minimum are usually counted toward the savings and debt repayment category.
