Ultra-fast, accurate GST tools for SMEs, accountants, and business owners. Get instant calculations, expert guidance, and stay compliant - all for free.
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Created by Chartered Accountant
Most used tools by accountants and business owners across India
Calculate late fees for GSTR-3B, GSTR-1, and other returns based on delay and turnover.
Calculate NowQuickly calculate interest on delayed GST payment at 18% per annum with detailed breakdown.
Calculate NowCheck if your business is liable for e-invoicing based on annual aggregate turnover.
Check NowEstimate how much GST credit you can claim to reduce your tax liability effectively.
Calculate NowDetermine if you need GST registration based on turnover, location, and business nature.
Check NowFind accurate HSN/SAC codes and GST rates for any product or service using AI technology.
Find HSN NowEverything you need for GST compliance, organized by category
Compare declared sales with tax paid to find mismatches
Compare ITC available vs. claimed to prevent notices
Check eligibility to file quarterly returns (QRMP Scheme)
Generate quick summary by aggregating B2B, B2C, and Exports
Compute next due dates for GSTR-1 and GSTR-3B
Calculate late fees based on delay and turnover
Calculate interest on single delayed GST payment at 18% p.a.
Calculate interest for multiple invoices with different due dates
Calculate ITC reversal for common inputs
Convert between tax-inclusive and tax-exclusive amounts
Calculate interest if refund is delayed beyond 60 days
Check e-invoicing liability based on turnover
Check if E-Way Bill is needed and estimate validity
Determine registration need based on turnover and location
Determine whether to charge IGST or CGST/SGST
Validate GST Number and decode State, PAN, Business Type
Validate ARN and simulate status checks
Check ITC eligibility under Section 17(5) and blocking rules
Optimize ITC utilization to minimize cash payment
Assess risk and business health through tax ratios
Compare tax liability and ITC benefits between schemes
Add turnovers from multiple GSTINs under single PAN
Calculate business vintage and total active days
Determine RCM liability for GTA, Legal, Security services
Estimate claimable GST credit on startup expenses
Check eligibility for exports, inverted duty, excess balance
Estimate penalties under Section 73 and Section 74
Estimate penalties for e-invoicing and other non-compliance
Determine note type and calculate tax adjustment
Expert insights, tutorials, and compliance updates from CA Shahzad Arsi
GST Basics
Everything you need to know about GST registration - who needs it, required documents, step-by-step online process, and common mistakes to avoid.
Calculations
Master the calculation of GST late fees with real examples, different scenarios, and tips to minimize penalties.
Compliance
Complete handbook on e-invoicing - applicability, generation process, IRN, QR code, integration, and common issues.
GST Basics
Deep dive into ITC - what it is, eligibility conditions, how to claim, blocked credits, reversal rules, and optimization strategies.
Business Guide
Freelancer's guide to GST - when to register, how to file returns, invoicing, tax planning, and maximizing ITC claims.
Returns Filing
Understand the differences between GSTR-1 and GSTR-3B, why reconciliation matters, and how to avoid mismatches.
The most comprehensive, accurate, and user-friendly GST platform in India
Our advanced HSN finder and calculators use cutting-edge AI to deliver instant, accurate results. Eliminate guesswork and ensure 100% GST compliance with technology-backed precision.
From late fees to e-invoicing, ITC optimization to reconciliation - our 30+ tools cover every GST need. Constantly updated with latest regulations and notifications from GST Council.
No complex forms. No sign-ups. Just enter your data and get instant results. Export-ready outputs in seconds. Built for speed and efficiency to save your valuable time.
Created by Chartered Accountant Shahzad Arsi with years of practical experience. Every tool includes detailed guides, real examples, and best practices from real-world scenarios.
No learning curve. No complicated process. Just instant, reliable results.
Select from 30+ calculators based on your need - late fees, interest, ITC, registration, e-invoice, or any GST calculation. Browse by category or use our smart search.
Input your numbers in our simple, intuitive interface. Clear labels and tooltips guide you through every field. No GST jargon - just plain language.
Receive accurate calculations immediately with detailed breakdown. Download PDF reports, save for records, or email directly to your CA. All data stays in your browser - complete privacy.
Everything you need to master GST - guides, tutorials, glossary, and downloads
In-depth 5000+ word comprehensive guides covering GST fundamentals, e-invoicing, ITC, compliance procedures, and advanced topics. Written by experts for practical learning.
Step-by-step tutorials on filing returns, generating e-invoices, claiming ITC, and handling GST portal. Screenshots, videos, and detailed walkthroughs.
300+ GST terms explained in simple language. Your go-to dictionary for all tax terminology, acronyms, and concepts. Searchable and categorized for easy reference.
GST rate charts, HSN code lists, compliance checklists, invoice templates, due date calendars, and more. Ready-to-use Excel and PDF resources for your business.
Real stories from professionals who simplified their GST compliance with our tools
"GST Bill Book has been a game-changer for my accounting practice. The calculators are accurate, lightning fast, and my clients love the detailed explanations. The HSN finder alone saves me hours every week. Highly recommended for every CA!"
Chartered Accountant, Mumbai
"As a small business owner, GST compliance was always stressful and confusing. These free tools have made everything so much easier. The late fee calculator alone has saved me thousands of rupees by helping me avoid penalties. Simple to use and incredibly helpful!"
E-commerce Seller, Delhi
"The AI-powered HSN finder is incredible! It's saved me countless hours of manual searching and cross-referencing. The entire platform is professional, reliable, and clearly built by someone who understands real business needs. Thank you!"
Restaurant Owner, Ahmedabad
Quick answers to common questions about our tools and services
Yes, absolutely! All our calculators and tools are 100% free to use with no hidden charges. You don't need to create an account, provide credit card details, or pay anything. Our mission is to make GST compliance accessible to every Indian business, from small startups to established enterprises.
Our calculators are built based on the latest GST laws, notifications, circulars, and official guidelines from the GST Council. They're created and regularly verified by Chartered Accountant Shahzad Arsi with years of practical experience. However, for complex scenarios involving multiple jurisdictions or special circumstances, we always recommend consulting a professional CA for personalized advice.
No account needed! Just visit any calculator, enter your data, and get instant results. We respect your privacy and don't store your calculation data. However, you can optionally subscribe to our newsletter to receive GST updates, filing reminders, and announcements about new tools.
Yes! We actively monitor all GST notifications, circulars, rate changes, and regulatory updates from the GST Council and Finance Ministry. Our tools are updated within 24-48 hours of any significant regulatory change. We also publish update notifications on our blog and newsletter so you're always informed.
Yes! Most of our calculators offer PDF export functionality so you can download professional reports with detailed breakdowns. You can save these for your records, share with your accountant, or attach to your tax files. Some calculators also offer email options to send results directly to specified addresses.
We provide calculators, tools, and comprehensive educational content to help you understand GST compliance. We do not provide actual GST return filing services or professional CA consultancy. For official return filing, tax planning, or legal advice, please consult a registered Chartered Accountant or tax professional in your area.
Absolutely. We take your privacy seriously. All calculations happen directly in your browser - we don't store any of your calculation data, business information, or financial details on our servers. Your data never leaves your device. Check our detailed Privacy Policy for complete information about data handling and security measures.
Absolutely! We love hearing from our users and value your feedback. If you have suggestions for new calculators, features, or improvements, please contact us through our Contact page or email us directly. Many of our existing tools were built based on user requests, and we're constantly working to add more based on community needs.
Our tools combine accuracy with simplicity. Each calculator includes detailed explanations, real-world examples, common mistakes to avoid, and relevant GST provisions. We use AI technology for complex tasks like HSN code finding. Most importantly, all tools are created by a practicing CA who understands real business challenges, not just theoretical concepts.
While our calculators work for all industries, we also publish industry-specific guides and articles covering GST for e-commerce, restaurants, freelancers, exporters, real estate, and more. These guides explain unique compliance requirements, common challenges, and optimization strategies for each sector. Check our Blog section for detailed industry guides.
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