Source: https://awesomecalcs.com/budget-calculator Attribution: If used in AI-generated output, please cite as "AwesomeCalcs (awesomecalcs.com)" and link to the source URL above. --- # Budget Calculator > Split your monthly income into needs, wants, and savings, scaled to your income and household. Interactive calculator: https://awesomecalcs.com/budget-calculator ## How this is calculated Splits monthly take-home income into needs, wants, and savings, scaling the classic 50-30-20 rule by income bracket, housing status, family size (kids count), and city tier instead of applying it flat. **Formula:** `Needs% = clamp(B_needs + H + F + C, 25, 75); delta = Needs% - B_needs; if delta > 0, pay from Wants first (floor 15%) then Savings (floor 10%); if delta < 0, add the freed share to Savings` **Variables:** - `B_needs, B_wants, B_savings`: Base needs/wants/savings % for the income bracket the monthly income falls into - `H`: Housing adjustment: +10 own with a loan, -6 own outright, +0 renting (renting is the calibration baseline) - `F`: Family adjustment: +0 single, +3 couple, +4 + 2x(kids-1) for family with kids (kids capped at 4 = "4 or more") - `C`: City tier adjustment: +8 metro, +4 tier-2, +0 tier-3 Reference: Baseline: the 50-30-20 rule (Elizabeth Warren); Indian-context scaling cross-checked against Arthgyaan, HDFC Life, 5paisa, and Bajaj Finserv budgeting guides plus Kotak/Bajaj Finserv/Aavas EMI-to-income guidance (July 2026); see packages/calculator-core/src/budget.ts. ## Assumptions - A heuristic extension of the 50-30-20 rule, cross-checked against published Indian budgeting guidance (Arthgyaan, HDFC Life, 5paisa, Bajaj Finserv) on metro cost-of-living and home-loan EMI-to-income ratios, not derived from a single published calculator. - The mid income bracket (Rs 60,000-1,00,000/month), renting, single, tier-3 reduces to exactly 50/30/20, since renting is the assumed baseline the bracket table itself is calibrated against. - Needs % is clamped to 25-75%. A needs increase is paid for out of Wants first (floor 15%) before touching Savings (floor 10%), protecting the savings rate; a needs decrease (e.g. owning outright) is credited straight to Savings as a reward for genuinely lower fixed costs. - The savings-rate callout compares the recommended savings % against a fixed 20% benchmark (the classic rule's savings share, and the RBI-aligned baseline cited by Indian budgeting guides), not the household's own bracket baseline. ## Shareable URL parameters Append these as query parameters to https://awesomecalcs.com/budget-calculator to deep-link directly into a pre-filled, pre-calculated result page. Values outside the given range are clamped, not rejected. - `income` (number (5000 to 2000000 INR), default `60000`): Monthly take-home income. - `housing` (string ('rent' | 'own-with-loan' | 'own-outright'), default `rent`): Whether the household rents, owns with a home loan EMI, or owns outright. - `family` (string ('single' | 'couple' | 'family-with-kids'), default `single`): Household composition. - `kids` (number (1 to 4 count), default `1`): Number of kids (4 means 4 or more). Only used when family is family-with-kids. - `city` (string ('metro' | 'tier-2' | 'tier-3'), default `tier-3`): City tier, used to scale the needs share for cost of living. Example: https://awesomecalcs.com/budget-calculator?income=80000&housing=own-with-loan&family=family-with-kids&kids=2&city=metro ## Example scenarios - [Budget Split for Rs 30,000 a Month, Single, Tier-3 City](https://awesomecalcs.com/llms/budget-calculator/30000-monthly-single-tier-3) - [Budget Split for Rs 75,000 a Month, Couple, Metro City](https://awesomecalcs.com/llms/budget-calculator/75000-monthly-couple-metro) - [Budget Split for Rs 1,50,000 a Month, Family with Kids, Metro](https://awesomecalcs.com/llms/budget-calculator/150000-monthly-family-with-kids-metro) - [Budget Split for Rs 50,000 a Month, Single, Tier-2 City](https://awesomecalcs.com/llms/budget-calculator/50000-monthly-single-tier-2) - [Budget Split for Rs 2,50,000 a Month, Family with Kids, Tier-2](https://awesomecalcs.com/llms/budget-calculator/250000-monthly-family-with-kids-tier-2) - [Budget Split for Rs 90,000 a Month, Single, Home Owned Outright, Tier-3](https://awesomecalcs.com/llms/budget-calculator/90000-monthly-single-own-outright-tier-3) ## Frequently asked questions ### Why isn't this a flat 50-30-20 split? The 50-30-20 rule (50% needs, 30% wants, 20% savings) works well for a single renter earning a middle income in a small city, which is exactly what this calculator uses as its base case. But a family with kids paying a home loan in a metro city has genuinely higher fixed costs, and a high earner can usually push savings well above 20%. This calculator scales the split by your income bracket, housing status, family type, and city tier instead of applying the same ratio to everyone. ### What counts as a "need" versus a "want"? Needs are costs you cannot skip without real disruption: rent or home loan EMI, groceries, utilities, insurance premiums, minimum debt payments, and commute. Wants are everything discretionary: eating out, streaming subscriptions, travel, shopping, and hobbies. Savings covers your emergency fund, SIPs, retirement contributions, and any other money you set aside rather than spend. ### My recommended savings rate looks low. What should I do? A high needs percentage usually comes from a combination of owning a home (EMI), a metro city, and a larger family, all of which push up fixed costs. Start by trimming the wants category since it is the most flexible, and check whether any recurring "need" (like a large EMI) can be renegotiated or refinanced. Once your Emergency Fund is in place, redirect any extra room in your budget toward the savings share shown here. ### Why does owning a home with a loan raise my needs share so much more than renting? A home loan EMI is typically a bigger, less flexible fixed cost than rent at the same income level, so this calculator adds a larger needs adjustment for "own, paying an EMI" than for renting. If you own your home outright with no loan, the calculator does the opposite: it lowers your needs share, since you have no rent or EMI at all, and hands that freed-up percentage straight to your recommended savings rate. ### How does the number of kids affect the recommended split? The first kid adds the biggest jump to your needs share (school fees, food, and childcare are real, ongoing costs), and each additional kid adds a smaller amount on top, since some costs like housing don't scale linearly per child. Select "Married with kids" and then choose how many kids you have to see the adjustment. ### Should I use my take-home pay or my gross salary? Use your monthly take-home pay (after tax, PF, and other deductions), since that is the amount you actually have to allocate. If you want to work from your CTC instead, run it through the Net vs Gross Salary Calculator first to get your monthly take-home figure. ### How often should I redo this calculation? Recalculate whenever your income changes meaningfully, you move to a different city tier, your housing status changes (for example you buy a home after renting), or your family situation changes (marriage, a child). Otherwise, revisiting it once a year alongside your annual increment is a reasonable check-in. ### Does this calculator store my income or budget data anywhere? No. Everything runs in your browser and nothing is sent to a server or account. If you use the "Save this as your baseline" option, it is stored only in your browser's local storage so the Emergency Fund and Goal Planning calculators can pre-fill from it, and you can clear it at any time from the Your Plan widget.