Learn GST billing and ERP: 11 short lessons with practice tasks

Learn GST invoices, input tax credit, stock, payroll, GST returns and the accounting statements by doing each step in a practice company. About 92 minutes in all. Free. Lessons also in Hindi.

The 11 lessons

1. 1
   Set up a company and read a GSTIN · हिन्दी

   8 min · Create your practice company and fill in its GSTIN, address and pincode
2. 2
   Items, HSN and SAC codes, and GST rates · हिन्दी

   9 min · Add three items: two goods with HSN codes and one service with a SAC code, each with its GST rate
3. 3
   Customers and vendors with GSTIN · हिन्दी

   7 min · Add two customers with GSTIN (one in your state, one in another state) and one vendor with GSTIN
4. 4
   Make a GST tax invoice (CGST + SGST) · हिन्दी

   10 min · Make a GST invoice to your same-state customer with at least one item that has an HSN code
5. 5
   Inter-state sale: an IGST invoice · हिन्दी

   7 min · Make an invoice to your other-state customer and check that it carries IGST
6. 6
   Record a purchase and claim input tax credit · हिन्दी

   9 min · Record a purchase bill from your vendor with GST on it
7. 7
   Stock in, stock out and the stock balance · हिन्दी

   7 min · Record stock received for one item and stock issued out of it
8. 8
   Receive a payment against an invoice · हिन्दी

   7 min · Record a payment from a customer against one of your invoices
9. 9
   Run payroll: PF, ESI and the payslip · हिन्दी

   10 min · Add one employee with a salary and run payroll for one month
10. 10
    GST returns: GSTR-1 and GSTR-3B · हिन्दी

    9 min · Open GST Returns in your practice company and read the total output tax for the month of your invoices
11. 11
    Read the statements: receivables, P&L and balance sheet · हिन्दी

    9 min · Find the total amount your customers still owe in your practice company

How it works

1. Read a lesson. It is open to everyone.
2. Create your practice company in your free Rebota account (one click).
3. Do the task. Press Check my work: Rebota looks at the data in your practice company. You cannot tick a lesson yourself.
4. After all 11, get a certificate with a link to verify it.

For colleges and trainers

Teaching a class? See how a class can use this course.

Questions

Is the course really free?

Yes. The lessons and the practice company are free. You need a free Rebota account only to do the practice tasks.

Do I need to sign up to read the lessons?

No. Every lesson page is open. Sign-up is needed only to do the task in your own practice company.

What is the practice company?

A second company inside your account, marked PRACTICE, with made-up names and GSTINs. Remove it with one click; your own company is never touched.

What does the certificate say?

That you completed the 11 course tasks in Rebota, checked against your own practice data. It has a link anyone can open to check it. It is not a degree, a government certificate or an accreditation.

Who is this for?

Commerce and accounting students, job seekers, small business owners and trainers who want to learn GST billing and business software by doing it. It is a starting point, not a replacement for a chartered accountant.

Sources for every legal figure are named in brackets inside each lesson. Reviewed 7 Nov 2026. Not a substitute for a chartered accountant.