Business & Financial Calculators & Tools
27+ free, legally accurate financial tools built for Indian entrepreneurs, salaried professionals, and growing enterprises. Calculate taxes, startup valuations, ROC fees, payroll, and investment wealth in seconds.
D BIZ GST Calculator
Calculate Goods & Services Tax (GST), CGST, SGST, and IGST for invoices and price quotes.
Calculation Settings
GST Calculation Breakdown18% Slab
D BIZ Compliance Tip:
Businesses with turnover exceeding ₹40 Lakhs (goods) or ₹20 Lakhs (services) are legally required to obtain GST registration. D BIZ files GST returns starting at ₹499/month.
Complete D BIZ Tools Suite
Select any tool to load its interactive calculation workspace.
GSTR-1 to Excel & GSTR-3B Reconciler
Convert single or multiple GSTR-1 JSON files into multi-sheet Excel. Combine monthly GSTR-3B PDFs and cross-verify tax liabilities to prevent automated DRC-01B notices.
D BIZ Smart Invoice & Voucher Generator
Generate GST Tax Invoices (Rule 46), Payment Vouchers (Rule 52), Receipt Vouchers (Rule 50), Expense Vouchers, Bills of Supply, Credit/Debit Notes, and Delivery Challans with logo upload.
D BIZ GST Calculator
Calculate GST, CGST, SGST, IGST, and price inclusive/exclusive breakdown instantly.
D BIZ Income Tax (ITR) Calculator
Compare Budget 2026 New Tax Regime (with ₹75,000 standard deduction) vs Old Tax Regime for AY 2026-27.
D BIZ Partnership Remuneration & Interest Calculator
Calculate maximum allowable partner remuneration and 12% capital interest under Section 40(b) of the Income Tax Act for Budget 2026 & AY 2026-27.
D BIZ TDS Deduction Calculator
Calculate Section 194J, 194C, 194I, 194H, 194Q TDS deductions by service type, bill value, GST segregation, and Income Tax Act 2025 rates.
D BIZ Possible GSTIN Generator
Generate valid 15-digit GSTIN numbers for any state using PAN, registration count, and official Luhn Modulo-36 checksum.
D BIZ HRA Exemption Calculator
Calculate Section 10(13A) House Rent Allowance tax exemption and taxable component.
D BIZ GST Rate Comparison
Compare GST rates across 5%, 12%, 18%, and 28% categories with historical comparisons.
D BIZ GST Late Fee & Interest Calculator
Compute Section 47 late fee and 18% p.a. Section 50 interest on delayed GSTR-3B filings.
D BIZ Advance Tax Installment Calculator
Calculate quarterly advance tax installments (15%, 45%, 75%, 100%) and avoid Section 234B/C interest.
D BIZ Capital Gains Tax Calculator
Calculate Short-Term (STCG) and Long-Term (LTCG) taxes with Budget 2026 12.5% rate and ₹1.25L exemption.
D BIZ HSN / SAC Code Finder
Fast lookup for Goods (HSN) and Services (SAC) classification codes and applicable GST tariff rates.
D BIZ Salary In-Hand Calculator
Convert annual CTC into monthly take-home salary after EPF, Professional Tax, and TDS.
D BIZ Gratuity Calculator
Calculate mandatory gratuity payout based on 15/26 formula and service tenure.
D BIZ EPF Retirement Calculator
Project employee provident fund corpus at retirement age 58 with 8.25% compounding.
D BIZ Business Setup Cost Calculator
Estimate company registration cost (Pvt Ltd, LLP, Dubai, US) with instant quote breakdown.
D BIZ Business Name Generator
Generate legally compliant, unique brand and company names ready for MCA CRC approval.
D BIZ Trademark Class Finder
Search all 45 Nice trademark classes and find the exact class for your brand.
D BIZ Business ROI Calculator
Calculate Return on Investment, annualized ROI, and CAGR on business expenditures.
D BIZ Startup Valuation & Dilution Calculator
Compute Pre/Post-Money valuation, cap table dilution, and investor equity stake for fundraising.
D BIZ Authorized Capital & ROC Fee Calculator
Estimate statutory ROC filing fees (SH-7) and state stamp duty to increase authorized share capital.
D BIZ SIP Calculator
Calculate returns on monthly mutual fund SIP investments with compounding growth.
D BIZ Mutual Fund & Lumpsum Calculator
Estimate future returns for one-time lumpsum mutual fund and equity investments.
D BIZ PPF Calculator
Calculate guaranteed returns on Public Provident Fund with 7.1% tax-free compounding.
D BIZ NPS Pension Calculator
Compute National Pension System retirement corpus, 60% lumpsum, and monthly annuity.
D BIZ Retirement Planning Calculator
Calculate the exact inflation-adjusted corpus required to retire comfortably.
D BIZ Loan EMI Calculator
Calculate monthly EMI installments, total interest, and amortized repayment schedules.
D BIZ Home Loan EMI & Tax Saver
Calculate housing loan EMI and tax deduction benefits under Section 24b and 80C.
D BIZ Fixed Deposit (FD) Calculator
Calculate quarterly compounded maturity value and senior citizen bonus returns.
D BIZ Recurring Deposit (RD) Calculator
Calculate total maturity proceeds on monthly recurring deposits in banks.
D BIZ Simple vs Compound Interest Calculator
Side-by-side comparison of simple interest vs compounded returns over any period.
D BIZ Loan vs. Own Funds Calculator
Compare whether taking a loan or paying from own funds is more profitable for cars, homes, or machinery. Includes PDF & Excel exports.
Need Help Executing Your Business or Tax Filings?
Our team of Chartered Accountants, Company Secretaries, and Trademark Attorneys in Trivandrum & Kochi are ready to assist you.