Learn GST return filing by actually filing - without a real business.
A complete practice portal that works like the GST system: registration, ARN, GSTIN, GSTR-1, IMS, GSTR-2B, GSTR-3B, challan and electronic ledgers. Students practise safely, institutes track every learner.
Everything a GST practical lab needs
Built by a trainer who has taught 1000+ students. The simulator follows the real flow and the real law, so what students learn here works on the job.
Registration to GSTIN
REG-01 Part A & B with OTP on email, TRN, ARN, officer approval (REG-06), GSTIN with real check digit, first-time login.
GSTR-1 & GSTR-1A
B2B, B2CL, B2CS, exports (WPAY/WOPAY), credit/debit notes, nil/exempt, HSN summary, documents issued, amendments.
Companies that trade
A student runs 2-4 companies. An invoice filed by Company A lands in Company B's IMS - exactly how real buyers get ITC.
IMS & GSTR-2B
Accept, reject or keep pending supplier invoices, then compute GSTR-2B. Pending carries forward, rejected stays out.
GSTR-3B that teaches
Auto-population, hard-locked liability, Rule 88A set-off with error messages, reverse charge in cash only, late fee & interest.
Challan & ledgers
PMT-06 challan, simulated bank payment (CPIN/CIN), electronic cash ledger, credit ledger and liability register.
Assignments & answer key
Ready 3-month, 4-company assignment book with worksheets, plus a trainer answer key verified on the simulator.
Institute control
Buy seats, add students by email, set practice limits, reset usage, track progress and raise support tickets.
How it works
For students
Create an account and verify your email with OTP.
Pay online securely. Institute students need no payment.
Get GSTINs for your practice companies.
GSTR-1, IMS, GSTR-2B, GSTR-3B, challan - every month.
For institutes
Fill institute details. We verify and activate.
20, 30, 50 or 100 students. Online or offline payment.
Students sign up with that email and are activated.
See usage, reset limits, raise tickets.
How GSTSim compares
Students usually learn GST from videos or by watching a trainer's screen, because the official portal needs a real business. Here is how the common options compare (based on publicly available information).
| What you get | GSTSim | Other GST simulators | Course + accounting software | Video courses | Official portal demo |
|---|---|---|---|---|---|
| Hands-on return filing with dummy data | Partial | ||||
| Registration to GSTIN flow (TRN, ARN, REG-06) | Partial | Partial | |||
| Two or more companies trading (A sells, B gets ITC in IMS) | |||||
| GSTR-1A, IMS and GSTR-3B hard-lock (2025 changes) | Partial | Partial | Partial | ||
| Rule 88A set-off checking with explanations | Partial | ||||
| Challan, cash/credit ledger, late fee & interest | Partial | Partial | |||
| Assignment book + trainer answer key | Partial | ||||
| Institute seats, usage tracking, limits | Partial | ||||
| Self-serve online purchase | Partial | - |
"Partial" = available in some products or only as a walkthrough. Comparison is indicative; features of other products change over time.
Why students & institutes choose it
Practical GST skill is what employers test in interviews. Most freshers have never seen a GSTR-3B payment screen.
Job-ready
Practise the exact monthly cycle an accountant handles: sales, purchases, ITC, payment, filing.
Zero risk
No real GSTIN, no real money, no penalty. Make mistakes and learn from the error messages.
Saves trainer time
Assignments with answer keys and system-checked figures - less manual checking.
Measurable
Institutes see who registered, who filed and how many practices each student used.
Simple pricing
Prices exclude GST @18%.
Student Starter
- Registration to GSTR-3B full cycle
- Up to 5 practice businesses (GSTINs)
- Email OTP & ARN like the real flow
- Assignment book with answer key
Student Pro
- Everything in Starter
- Up to 20 practice businesses (GSTINs)
- Multi-company IMS practice (A sells to B)
- Priority ticket support
Institute 20
- 20 student seats
- 10 practice businesses per student
- Institute dashboard & usage tracking
- Add students by email
Institute 30
- 30 student seats
- 10 practice businesses per student
- Institute dashboard & usage tracking
- Add students by email
Frequently asked questions
Is this the official GST portal?
No. GSTSim is an independent training simulator. All GSTINs, ARNs, challans and payments are dummy. Never enter your real GST login or bank details here.
How do OTPs work?
Like the real flow, OTPs for registration and return filing are sent to your registered email. Please check the spam folder if you don't see them.
What is a "practice business"?
Each GST registration you create (each practice GSTIN) uses one practice from your plan. A plan with 20 practices lets you run up to 20 businesses and file all their returns.
We are an institute. Can we pay offline?
Yes. Choose a seat pack and select "Pay offline (cash / bank transfer)". Our team confirms the payment and activates the seats.
How do institute students get access?
The institute adds each student's email in its panel. The student signs up with the same email and is activated automatically, without paying.
Is the content updated for recent GST changes?
Yes - GSTR-1A, the Invoice Management System (IMS), hard-locked GSTR-3B liability from July 2025 and the reduced B2CL limit of ₹1,00,000 are included.
Start your GST practical today
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