The Ultimate Free GST Tool
for Small Business India.
Use our free GST tool online to instantly compute taxes. Whether you need a GST tool for e-commerce, a quick GST number search, or an offline GST tool alternative to the portal—we have you covered.
The complete GST toolkit.
Everything you need for GST compliance — fast, offline, and completely free.
Notice Reply Deadline
Calculate the exact deadline to file your reply for ASMT-10, DRC-01, Section 73, and Section 74 notices.
Margin Scheme (Second Hand)
Calculate your tax savings on second-hand goods. Pay GST only on your profit margin, not the full sale value.
GST on Rent
Instantly check GST applicability, Reverse Charge Mechanism (RCM) rules, and tax liability for commercial or residential rent.
GST on Freight
Determine GST liability, RCM applicability, and ITC eligibility for transport of goods (GTA vs Courier) in India.
Aggregate Turnover
Calculate your exact GST turnover. Instantly check if you cross the ₹20L/₹40L mandatory registration limit or Composition Scheme thresholds.
Rate Comparison
Compare old GST slabs vs new GST 2.0 rates. Calculate the exact ₹ price impact for your end consumers.
MRP Revision Calculator
Reverse calculate your base price and generate a new MRP after a GST rate change to preserve your margins exactly.
ITC Reversal Checker
A simple yes/no decision tree to determine if a GST rate drop legally requires you to surrender your Input Tax Credit.
GST Calculator
Add or remove GST instantly. Supports 5%, 18%, 40% (GST 2.0) and custom rates. Old slabs (12%, 28%) available for historical context. Shows CGST/SGST split.
HSN / SAC Code Lookup
Search HSN codes for goods and SAC codes for services. Instant client-side filtering with GST rate display.
GSTIN Validator
Validate any 15-digit GST number offline. Verifies format, checksum, decodes state name and embedded PAN.
GST Invoice Generator
Create perfect tax invoices instantly. Auto-calculates CGST/SGST/IGST. Download as PDF. 100% Free & Offline.
E-Way Bill Limit Checker
Instantly check mandatory E-Way Bill threshold limits (₹50k vs ₹1 Lakh) for inter-state and intra-state goods movement.
Late Fee Calculator
Calculate GST late fees and interest for delayed filing of GSTR-1, GSTR-3B, or GSTR-9. Accurate client-side calculation.
RCM Calculator
Calculate Reverse Charge Mechanism (RCM) liability instantly.
Composition Scheme
Check eligibility and calculate flat composition tax rates.
E-Way Bill Validity
Calculate exactly how many days an E-way bill is valid.
ITC Calculator
Calculate Input Tax Credit set-off and net GST payable.
Interest Calculator
Calculate interest on delayed GST payments at 18% p.a.
TDS Calculator
Calculate 2% TDS under GST for contracts over ₹2.5 Lakhs.
TCS Calculator
Calculate 1% TCS under GST for e-commerce operators and sellers.
Penalty Calculator
Calculate statutory GST penalties for fraud, late payment, and fake invoices.
GST Due Dates Calendar
Track all important GST return filing due dates. Never miss a deadline and avoid late fees and penalties.
GSTR-9 Checklist
Interactive checklist for filing GSTR-9 Annual Return and avoiding notices.
LUT Renewal Reminder
Calculate your exact deadline to renew LUT for zero-rated GST exports.
Director RCM Calculator
Determine GST applicability (18% RCM vs Salary) on director remuneration.
Supply Type Classifier
Classify bundled goods into Composite vs Mixed Supply for accurate tax rates.
Multi-GSTIN Splitter
Allocate values and determine IGST/CGST across multiple state branches.
Understanding GST in India — Your Complete Guide
GST (Goods and Services Tax) — the full form of GST — is India's most significant indirect tax reform. Implemented on 1 July 2017, GST replaced a fragmented system of central and state taxes. Today, every business with annual turnover above the threshold must complete their GST registration on the official GST portal. Once registered, a business receives a unique 15-character GST number. You can do a quick GST number check or GST number search to verify details of any supplier before transacting, ensuring they are active on the GST portal login.
Whether you're a small trader or a seasoned CA, having a reliable GST tool is essential. India uses a four-tier GST rate structure. To figure out tax on a bill, you can use our free GST calculator. It allows you to add GST to a base price or remove GST from an inclusive price in seconds. You can also generate beautiful bills using our free online GST invoice generator. For logistics and transport, knowing the E-Way bill limits 2026 is critical to avoid massive penalties. Understanding new GST rates and applying them correctly ensures correct GST payment when filing returns.
What is a GST Number?
A GST number (also known as GSTIN) is an alphanumeric identifier assigned after successful gst registration. Knowing how to do a GST no check or GST no search is critical before entering a business transaction. Our GST verification tool lets you validate the checksum and PAN immediately without any external API call. You don't need a separate gst login to use our offline tools.
HSN Codes and GST Search
Every good traded in India is classified under an HSN code, and services under a SAC. These codes determine the applicable new gst rates list 2025. Doing a quick GST search through our HSN Lookup tool lets you find the exact code and its associated tax rate. This avoids errors during gst portal login and invoice generation. Our GST status tool can also assist in tracking the correct rates and filing requirements.
GST Portal Login and Payments
The official website is where you perform your gst login portal activities. This is your destination for filing returns, tracking your gst status, and making a secure gst payment. You can also download your certificate or perform a real-time gst check. While the official portal is essential for compliance, our fast, offline tools save you time during day-to-day operations like preparing invoices or performing a quick gst verification before paying vendors.
Note: All tools on this website are for informational and calculation purposes only. GST rates and rules are subject to change. Always refer to the official GST portal and CBIC notifications for authoritative information. Our gst tool suite is completely free and requires no gst login.
Frequently Asked Questions
What is GST tool?
A GST tool is a software utility designed to help Indian taxpayers calculate tax amounts, validate GSTIN numbers, find HSN codes, and generate invoices. While the government provides a basic offline Java-based GST tool, our platform provides a suite of free GST tools online that require no downloads, no Java installation, and no portal login. It works instantly on any device.
Is there a free GST tool for e-commerce?
Yes! We offer a dedicated free GST tool for e-commerce sellers on Amazon, Flipkart, and Meesho. You can use our TCS Calculator to compute your 1% Tax Collected at Source, and our Invoice Generator to instantly create B2B or B2C bills without any complex accounting software.
Can I use this GST tool offline?
Yes, our entire suite is built as a Progressive Web App (PWA). Once you load the site, it functions as a highly optimized offline GST tool. You can calculate taxes, search HSN codes, and validate the format of GST numbers without an active internet connection. It is significantly faster than the legacy GST tool v1.0.
What is GST?
GST (Goods and Services Tax) is a comprehensive, multi-stage, destination-based indirect tax levied on every value addition in India. It replaced a complex web of central and state taxes such as VAT, service tax, excise duty, and CST. GST is collected at each stage of the supply chain, but the tax burden ultimately falls on the final consumer.
How to get GST number?
To get a GST number (GSTIN), follow these steps:
- Visit the official GST portal at gst.gov.in.
- Click on "Services → Registration → New Registration".
- Fill in Part A with your PAN, mobile number, and email.
- Verify via OTP and receive a Temporary Reference Number (TRN).
- Complete Part B with business details, documents (PAN, Aadhaar, address proof, bank details), and submit.
- An ARN (Application Reference Number) is generated.
- A GST officer reviews and approves; GSTIN is issued within 7 working days.
GST kab lagu hua?
GST bharat mein 1 July 2017 ko lagu hua. Yeh ek aitihaasik kar sudhar tha jisme "One Nation, One Tax" ka concept implement kiya gaya. GST Council ki pehli meeting 22–23 September 2016 ko hui thi.