India's Smartest GST & Financial Hub 2026
Instant, CA-grade statutory calculations updated for 2026: GST Exclusive & Inclusive rates, New vs Old Tax Regimes (FY 2025-26 / FY 2026-27), In-Hand Payroll, and Loan Planning.
Instant GST Calculator (Exclusive & Inclusive)
Compute CGST, SGST, IGST and Compensation Cess per latest CBIC statutory guidelines.
Explore All 23 Statutory & Financial Calculators
Filter by category or search by keyword to launch any verified financial calculation tool.
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GST Calculator
Calculate GST Exclusive (Add) & Inclusive (MRP) with CGST, SGST & IGST split.
Reverse GST Calculator
Extract pre-tax original base price and eligible input credit from MRP retail price.
GST Invoice Generator
Create, preview and print formal GST tax invoices with itemized tax breakdowns.
GST Late Fee & Interest Calculator
Compute Section 47 penalty fee and Section 50 interest @ 18% p.a. for late filing.
GST HSN/SAC Code Finder
Search official Goods (HSN) and Services (SAC) tax codes and GST rate slabs.
Income Tax Calculator
Compare New vs Old Tax Regime (2026 / FY 2025-26 & FY 2026-27) with ₹75k standard deduction.
ITR Eligibility Checker
Find which ITR return form (ITR-1, ITR-2, ITR-3, ITR-4 Sugam) you need to file.
TDS Calculator
Calculate TDS for contractors (194C), professionals (194J), rent (194I) & more.
In-Hand Salary Calculator
Calculate exact net take-home pay after EPF, Professional Tax, and estimated TDS.
CTC Calculator
Break down offer letter CTC into Basic (50%), HRA, Employer PF, Gratuity & Bonus.
HRA Exemption Calculator
Calculate maximum tax-exempt House Rent Allowance under Section 10(13A).
Gratuity Calculator
Compute statutory gratuity payout based on continuous tenure & last drawn salary.
PAN–Aadhaar Link Status Guide
Step-by-step verification, ₹1,000 penalty fee challan, and unfreezing inoperative PAN.
Loan EMI Calculator
Calculate monthly EMI and total interest repayment for Home, Car, and Personal loans.
Home Loan Eligibility Calculator
Estimate maximum bank loan sanction capacity based on monthly income & 50% FOIR.
SIP Calculator
Calculate compounding wealth growth from monthly mutual fund SIP investments.
Mutual Fund (Lumpsum) Calculator
Project compound maturity value on one-time lumpsum mutual fund investments.
Fixed Deposit (FD) Calculator
Bank FD interest earnings with Indian quarterly compounding rules.
Recurring Deposit (RD) Calculator
Calculate maturity returns on monthly bank and Post Office RD savings.
PPF Calculator
15-year sovereign tax-free wealth accumulation (7.1% p.a. sovereign guarantee EEE).
Business Registration Cost Calculator
Setup cost breakdown (DSC, DIN, Name, Stamp Duty, CA fee) for Pvt Ltd, LLP & OPC.
Udyam Registration Guide
Official MSME classification limits (Micro, Small, Medium) & government subsidies.
Proprietorship vs LLP vs Pvt Ltd Comparison
Side-by-side legal comparison across taxation, liability, compliance & funding.
Official 2026 GST Rate Slabs & Structure in India
The GST Council categorizes all goods and services into five statutory tiers. Understanding the appropriate slab ensures compliant invoicing and zero input credit penalties.
Zero-Rated & Essential Commodities
Unpackaged and unbranded grains, fresh milk, fresh fruits and vegetables, curd, natural honey, flour, salt, educational services, and basic healthcare.
Household Goods & Mass Transport
Packaged food items, sugar, tea, coffee, edible vegetable oils, domestic LPG, life-saving medicines, railway standard transport, and economy flight tickets.
Processed Goods & Equipment
Butter, cheese, ghee, fruit juices, diagnostic kits, business class air travel, work contracts, commercial kitchen equipment, and select computer peripherals.
Standard Services & Technology
IT and SaaS software, telecommunications, financial banking services, legal and CA consultancy, branded apparel, hotels, restaurants, and consumer durables.
Luxury, Sin Goods & Automobiles
Motor cars, high-end motorcycles, aerated sugary soft drinks, tobacco products, air conditioners, pan masala, and online real-money gaming (+ Compensation Cess).
GST Tax = (Taxable Base Value × GST Rate %) / 100Invoice Total = Taxable Base Value + GST Tax AmountBase Price = Total MRP / [1 + (GST Rate % / 100)]GST Tax = Total MRP - Calculated Base PriceKey GST Compliance Rules Every Business Must Know in 2026
Stay ahead of tax audits, input tax credit reversals, and departmental notices with these active mandates.
E-Invoicing Mandate (₹5 Cr)
Under Rule 48(4), all businesses with an aggregate annual turnover exceeding ₹5 Crore must generate IRN and QR codes for all B2B and export invoices.
100% GSTR-2B Matching
As per Section 16(2)(aa), ITC can only be claimed if reflected in auto-drafted GSTR-2B. Provisional credit (5% buffer) is completely prohibited.
Strict Filing Deadlines
GSTR-1 is due on the 11th of every month (outward supplies), and GSTR-3B summary return is due on the 20th. Late filing attracts ₹50/day (₹20 for Nil) plus 18% p.a. interest.
Bank Account Validation
GST registrations must link an active bank account within 30 days of grant of registration to prevent suspension under Rule 21A.
Frequently Asked Questions on GST & Taxes (2026)
Common queries answered by KK Startup India Chartered Accountants.
How do I determine whether to charge CGST + SGST or IGST?
The type of GST depends strictly on the Location of Supplier and the Place of Supply:
- Intra-State Supply (Same State): If the supplier and buyer are in the same state (e.g., Delhi to Delhi), both CGST (Central GST) and SGST (State GST) are charged equally (50% each).
- Inter-State Supply (Different States): If the supplier and buyer are located in different states (e.g., Delhi to Maharashtra), IGST (Integrated GST) is charged at the full combined rate.
What is the difference between GST Exclusive and GST Inclusive calculations?
GST Exclusive means the quoted price is purely the base value, and GST must be added on top (common in B2B transactions). For example, ₹10,000 + 18% GST = ₹11,800.
GST Inclusive means the quoted price already includes GST (common in retail MRP products). To find the original taxable base price, you divide the MRP by (1 + Rate/100). For ₹11,800 with 18% GST, the base price is ₹10,000, and GST is ₹1,800.
What is the e-invoicing threshold for businesses in India in 2026?
In 2026, e-invoicing is mandatory for all registered businesses whose aggregate turnover exceeded ₹5 Crore in any preceding financial year since FY 2017-18. All B2B and export invoices must be reported on the Invoice Registration Portal (IRP) to generate a valid IRN and QR code before delivery.
Can I claim Input Tax Credit (ITC) if an invoice is not visible in GSTR-2B?
No. Under Section 16(2)(aa) of the CGST Act, 100% strict matching with GSTR-2B is mandatory. If your vendor has not filed their GSTR-1 and the invoice is missing from your GSTR-2B, you cannot claim ITC. Claiming ineligible ITC attracts notice, penalty, and 18% interest under Section 50.
What are the late fees and interest for delayed GST return filing?
Under Section 47, the late fee for filing GSTR-3B after the 20th is ₹50 per day (₹25 CGST + ₹25 SGST) for tax-paying returns, capped according to turnover slabs. For Nil returns, the fee is ₹20 per day. Additionally, Section 50 mandates interest @ 18% per annum on net tax liability paid in cash after the due date.