PhyntaraTutorial · GST from zero
GST, explained like you just incorporated
17 chapters. About 156 minutes if you read straight through. You can skip to “Do it in Phyntara” after you know whether you need a GSTIN — but do not skip DPIIT if you are a recognised startup. DPIIT is not a GST holiday.
This tutorial explains GST the way a new founder or accounts clerk needs it, and how the same work is done in Phyntara. It is teaching, not a legal opinion. Thresholds, due dates, and late fees change when the GST Council notifies them. Your CA files. Confirm the live rule on gst.gov.in before you act on a rupee.
As of August 2026.
Understand GST
- 01What GST actually isOne tax on selling, in three pockets, that your customer can often take as credit — and why that chain is the whole game.
- 02Do you need a GSTIN?Turnover thresholds, compulsory registration from the first rupee, and why “we are small” is not always an answer.
- 03DPIIT startups and GST — what recognition does and does not doStartup India is real. It is not a GST holiday. Here is what founders mix up, and how to set Phyntara if you are DPIIT-recognised.
- 04Regular, composition, and QRMPThree ways to live inside GST. Pick once with your CA. Phyntara reads the choice from Letterhead and will not let a composition company issue a tax invoice with GST.
- 05Place of supply, rates, and HSN/SACWhy Kerala vs Karnataka changes the tax line, what 18% is attached to, and why a B2B line without HSN is a filing defect.
The law in practice
- 06Tax invoice, bill of supply, credit note, debit noteThe piece of paper (or PDF) is not decoration. Wrong document type is how GSTR-1 and the customer’s credit both break.
- 07Exempt, nil-rated, zero-rated, and “not a supply”Four different ideas people collapse into “no GST.” Mixing them is how refunds die and notices begin.
- 08Buying, tax credit, and why a PDF is not 2BYou paid GST to a vendor. Credit is not automatic. The vendor must exist, the bill must be real, 2B must show it, and IMS must not be left hanging.
- 09The monthly calendar: GSTR-1, 3B, 2B, IMSWho files what, typical due dates, and why Phyntara will never click File on 3B.
- 10Late fees, interest, penalties, and noticesWhat delay costs, what fraud costs, and what “the portal will auto-calculate” does and does not mean.
Do it in Phyntara
- 11How Phyntara is organisedTwo desks, one set of books. What you will never see as an owner, and what the CA must still do on gst.gov.in.
- 12Set up the company (Letterhead)Logo, look, GSTIN, composition, e-invoice, e-way, Drive, and connecting the portal. This page is the switchboard.
- 13Bills to customersTax invoice, B2B/B2C, HSN, credit notes, IRN, e-way, PDF, logo preview.
- 14Vendor bills and paying vendorsPhoto the bill, type the amount, pay only the bill amount, and understand why pay is sometimes on hold.
- 15Pay the government, tax credit, and exceptionsThe challan amount, chasing vendors who have not filed you, and the rare “this bill is not ours.”
- 16CA desk: Square, IMS, Tally, bank, pack, closeHow the practitioner files from books the company already saved — without asking for a zip on the 9th.
Look up a word
Start at What GST actually is. Founders with a Startup India certificate should also open DPIIT startups and GST.