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18
Free GST Tools
2025-26
FY Updated
100%
Free to Use
0
Signup Required
Everything you need to manage GST compliance for your business. Free tools with professional-grade accuracy.
Calculate CGST, SGST & IGST instantly. Supports all GST rates — 0%, 5%, 12%, 18%, 28%. Add or remove GST from any amount.
Create professional GST-compliant invoices in seconds. Download as PDF or Excel. Multiple templates available.
Calculate your Input Tax Credit eligibility. Know your blocked credits under Section 17(5) and net GST payable.
Calculate GST late filing penalty and interest. Supports GSTR-1, GSTR-3B & GSTR-4 returns with exact fee breakdown.
Search HSN codes by product name. Get GST rate, description and category for 200+ common items instantly.
Validate any GSTIN format and decode state, PAN, entity type instantly. Real-time format check as you type.
Never miss a GST filing deadline. GSTR-1, GSTR-3B, GSTR-4, GSTR-9 due dates with email & WhatsApp reminders.
Check if Reverse Charge Mechanism applies. Calculate RCM tax liability for GTA, legal, import and other services.
Check eligibility for GST composition scheme. Compare tax liability — regular GST vs composition scheme.
Check if e-way bill is required. Calculate validity period based on distance and transport mode.
Calculate your annual GST liability with monthly breakdown. Bar chart visualization. Useful for GSTR-9 filing.
Validate multiple GST numbers at once. Paste up to 50 GSTINs, get instant format validation with state and entity details.
Should you register for GST? Compare costs with and without registration to see ITC savings and total benefit.
Monthly GST compliance checklist for 2025-26. Track GSTR-1, GSTR-3B, payments, and reconciliation tasks.
Calculate interest on late GST payment at 18% p.a. or on excess ITC at 24% p.a. under Section 50 of the CGST Act.
Check if a GSTIN is Active, Cancelled or Suspended. Verify before ITC claim.
Current GST late fee waiver and amnesty scheme status. Updated after every council meeting.
Is e-invoicing mandatory for your business? Check instantly with turnover and sector.
Do you need GST registration? Instant answer based on your state and turnover.
Can you claim ITC on a purchase? Instant yes/no with legal basis under Section 17(5).
Match GSTR-2B with purchase register. Find ITC mismatches in seconds. Save 5+ hours monthly.
Get your GST compliance rating out of 100. 9-question assessment with improvement tips.
Track all your GST notices and deadlines in one place. Never miss a response deadline.
1.4 Cr+
GST Registered Businesses in India
₹1.87L Cr
GST Revenue Collected (Jan 2026)
July 1, 2017
GST Implementation Date
5 Slabs
GST Rate Slabs (0%, 5%, 12%, 18%, 28%)
Built for speed, accuracy, and simplicity.
All calculations happen instantly in your browser. No server delays.
Built per latest GST rules 2025-26. Trusted by thousands of businesses.
Designed for Indian businesses. Hindi + English support. UPI payments.
Common questions about SmartGST tools.