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Updated October 2026 Rebuilt for the current law: GST 2.0 slabs (5% / 18% / 40%, w.e.f. 22 Sep 2025), the 8-city HRA rule under the Income-tax Rules 2026, and the Income-tax Act 2025 — where Section 80C is now Section 123.

GST, HRA, Income Tax, EMI, SIP, Home Loan, PPF, NPS and many more — instant, private and always free. Nothing you type is uploaded.

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GST Business Toolkit

Follow the right GST workflow—from checking registration to preparing returns.

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Quick access to the latest additions and important GST workflow updates.

Professional GST Tools

Advanced workflows for businesses that need saved records, branded outputs and repeatable reporting.

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GST Invoice & Quotation Generator

Create quotations, proforma invoices and tax invoices with professional outputs.

  • Customer and product records
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Monthly GST Summary Lite Version

Prepare and save monthly GST reports with ITC and PDF export.

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QR Code Generator Lite Version

Create QR codes for business links, contact details and payments.

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Private by design · Reviewed October 2026

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Browse All 98 in the Calculator Directory

Basic Financial Calculators

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Ad RevenueEstimate advertising revenue from views and CPM. Bulk Invoice GST CalculatorCalculate GST totals for multiple items or invoices. Clean GST CalculatorAdd or remove GST and see the CGST, SGST or IGST split. Compound InterestCalculate compound growth with your chosen interest frequency. E-Invoice Applicability CheckerCheck e-invoice applicability using turnover and business details. EMI CalculatorCalculate monthly EMI, total interest and loan repayment. GST 2.0 Rate Change Impact CalculatorCompare old and new GST slabs and see the price difference. GST CalculatorAdd or remove GST and see the CGST, SGST or IGST split. GST Composition Scheme CalculatorEstimate GST composition tax from turnover and business type. GST Filing ChecklistTrack return-filing tasks and required GST checks. GST ITC CalculatorEstimate eligible input tax credit after blocked credits and adjustments. GST Quiz & Learning CenterGST lessons and 100 practice questions in 13 languages. GST Rate Card / Shop Poster GeneratorCreate a printable GST rate card or shop poster. GST Rate FinderFind GST rates using a product name or HSN/SAC code. GST Reconciliation Helper (2B vs Books)Compare GSTR-2B with books and identify differences. GST Registration ChecklistTrack registration steps, required documents, notes and progress. GST Registration Threshold CheckerCheck GST registration thresholds for your state and business. GST Reverse Charge (RCM) CalculatorCheck reverse-charge cases and estimate GST payable. GST Turnover Threshold TrackerTrack monthly turnover against GST thresholds. GSTIN ValidatorCheck GSTIN format and checksum for common entry errors. GSTR Due Date FinderFind GST return deadlines for your filing details. IMS Action GuideChoose Accept, Reject or Pending for an IMS invoice scenario. Inflation CalculatorEstimate inflation’s effect on future costs and purchasing power. Inverted Duty Refund CalculatorEstimate an inverted-duty refund using your turnover and ITC inputs. Monthly GST Summary Lite VersionPrepare and save monthly GST reports with ITC and PDF export. Net Worth CalculatorAdd assets and subtract liabilities to calculate net worth. Pension CalculatorEstimate monthly pension from your selected scheme and inputs. Percentage CalculatorEight useful percentage calculations, with clear formulas and worked steps. Place of Supply FinderFind place of supply and whether CGST/SGST or IGST applies. RetirementEstimate the savings you can build for retirement. Reverse GST CalculatorExtract the base price and GST from a tax-inclusive amount. SIP CalculatorEstimate investment growth, total contributions and returns. Unit Conversion CalculatorConvert cm, mm and inches, or kilograms and pounds, with formulas and worked steps.

Investment Calculators

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CAGR CalculatorCalculate an investment’s compound annual growth rate. Dividend CalculatorEstimate dividend income and yield from your shareholding. ELSS CalculatorEstimate investment growth, total contributions and returns. EPF CalculatorEstimate the savings you can build for retirement. Fixed Deposit (FD)Estimate maturity value, total deposits and interest earned. Gratuity CalculatorEstimate gratuity from salary and completed years of service. Investment PortfolioEstimate portfolio growth across your chosen asset allocations. Leave Encashment CalculatorEstimate leave encashment and its tax-exempt portion. LIC CalculatorEstimate policy maturity or fund value from your contributions. Lumpsum Investment CalculatorEstimate investment growth, total contributions and returns. Mutual FundEstimate investment growth, total contributions and returns. NPS CalculatorEstimate the savings you can build for retirement. NSC CalculatorEstimate maturity value, total deposits and interest earned. PPF CalculatorEstimate maturity value, total deposits and interest earned. RD (Recurring Deposit) CalculatorEstimate maturity value, total deposits and interest earned. Rental Yield CalculatorEstimate gross and net rental yield after vacancy and property expenses. Salary Hike Percentage CalculatorCalculate salary increase, percentage change and revised pay. SCSS CalculatorEstimate periodic interest payouts and total returns. SIP Calculator with Capital Gains TaxEstimate SIP maturity value and returns after capital gains tax. Step-Up SIP CalculatorEstimate investment growth, total contributions and returns. Stock Average (BoD) CalculatorCalculate weighted average share price, with or without brokerage. Sukanya SamriddhiEstimate maturity value, total deposits and interest earned. SWP CalculatorProject withdrawals, remaining corpus and possible depletion timing. ULIP CalculatorEstimate policy maturity or fund value from your contributions. XIRR CalculatorCalculate annualised returns from irregular dated cash flows.

Tax & Loan Calculators

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Advance Tax CalculatorEstimate advance-tax instalments after taxes already paid. Agriculture LoanCalculate monthly EMI, total interest and loan repayment. Business LoanCalculate monthly EMI, total interest and loan repayment. Capital Gains Tax CalculatorEstimate capital gains tax from asset and sale details. Car Loan CalculatorCalculate monthly EMI, total interest and loan repayment. Credit Card EMI / Interest CalculatorEstimate credit-card repayments, interest and payoff time. Crypto Tax CalculatorEstimate tax on virtual digital asset gains and applicable TDS. Education LoanCalculate monthly EMI, total interest and loan repayment. ESOP Tax CalculatorEstimate ESOP perquisite tax and capital gains when shares are sold. Freelancer / Consultant Tax CalculatorEstimate freelancer tax from income, expenses and selected options. GST Late Fee & Interest CalculatorEstimate late fees and interest for delayed filing. Home LoanCalculate monthly EMI, total interest and loan repayment. HRA CalculatorEstimate HRA exemption from salary, rent and city details. Income TaxCompare tax regimes with current slab and rebate treatment. ITR Due Date & Late Fee CalculatorEstimate late fees and interest for delayed filing. Loan Comparison CalculatorCompare 2 or 3 loans side by side: monthly EMI, interest, upfront fees and total cost. Loan Eligibility CalculatorEstimate loan eligibility from income and existing repayments. Loan Prepayment / Foreclosure CalculatorCompare prepayment costs with interest and tenure savings. NRI Tax ToolkitEstimate NRI rent TDS and explore DTAA tax relief. Personal LoanCalculate monthly EMI, total interest and loan repayment. Property Purchase TDS CalculatorEstimate the buyer’s TDS on a property purchase. Rent vs Buy CalculatorCompare the estimated costs of renting and buying a home. Rental Income Tax + TDS CalculatorEstimate taxable rental income, deductions and TDS. Salary / CTC to In-Hand CalculatorEstimate monthly take-home salary after pay components and deductions. State-Wise Professional Tax CalculatorEstimate professional tax from your selected state and salary. TDS CalculatorEstimate TDS for your selected payment type and amount. TDS on Rent CalculatorEstimate applicable TDS for rent payments and common threshold cases. Two-Wheeler / Used Car Loan CalculatorCalculate monthly EMI, total interest and loan repayment.

Business & Workplace Tools

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Attendance Percentage CalculatorCalculate attendance and see how many future days you must attend or may miss to reach your target. Freelance Rate / Hourly Rate CalculatorPlan hourly, daily and project rates from your income target, business expenses and billable time. Leave Balance Calculator (PTO)Estimate leave earned month by month, your balance today and your balance at year end. Shift Handover ChecklistTrack handover tasks, notes and sign-off before the next shift. Shift PlannerPlan staff shifts, calculate scheduled hours and export a CSV.

Specialized Industry Tools

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Education CostEstimate costs and plan a budget using your chosen assumptions. Health Insurance Cover CalculatorEstimate a health-insurance cover target for your household. Healthcare CalculatorEstimate costs and plan a budget using your chosen assumptions. Real Estate CalculatorEstimate costs and plan a budget using your chosen assumptions. Travel CostEstimate costs and plan a budget using your chosen assumptions. Wedding CostEstimate costs and plan a budget using your chosen assumptions.

Everyday Utility Calculators

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Age CalculatorCalculate exact age in years, months and days from a birth date.

From the Blog

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Plain-language guides on GST, tax, investing and loans — written to pair with the calculators above.

GST GuidesSlabs, invoicing, input tax credit and return filing under GST 2.0. Income Tax & HRAOld vs new regime, deductions, HRA city rules and filing deadlines. Investing & RetirementSIP, PPF, NPS, EPF and building a retirement corpus that lasts. Loans & Big PurchasesEMI maths, prepayment, home and car loans, and rent vs buy.

Frequently Asked Questions

What are the current GST slabs in India?

Since 22 September 2025 the main slabs are 0%, 5%, 18% and 40%, plus 3% for gold and 0.25% for rough diamonds. The 12% and 28% slabs were withdrawn under GST 2.0.

Is the 12% GST slab still valid?

No. Charging 12% on an invoice dated on or after 22 September 2025 is incorrect and can attract a penalty under Section 122 of the CGST Act.

Which cities get the 50% HRA exemption?

Four metros for FY 2025-26. From 1 April 2026 the Income-tax Rules 2026 add Bengaluru, Pune, Hyderabad and Ahmedabad, making eight.

What replaced Section 80C?

Under the Income-tax Act 2025, in force 1 April 2026, Section 80C is renumbered Section 123. Limits are unchanged.

Are these calculators free?

Yes. All 98 are free, need no sign-up, and run entirely in your browser — your figures are never uploaded.

Which languages are supported?

Thirteen: English, Hindi, Bengali, Marathi, Telugu, Tamil, Gujarati, Urdu, Kannada, Malayalam, Odia, Punjabi and Assamese.

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