Which services are taxable is a question for your chartered accountant.
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Ask us on WhatsAppGST-correct clinic billing in India means two things: every taxable line item carries the right CGST and SGST split, and every invoice carries a document number that is sequential within the fiscal year, unique per branch, and never reused. Because the Indian fiscal year runs April 1 to March 31, invoice sequences must reset on April 1, not January 1.
The numbering logic lives in a human process instead of in the software.
GST rules require invoices to carry a consecutive serial number, unique for a financial year.
One number should answer four questions: which branch, what document, where in the sequence, which financial year.
| Segment | What it means | Example |
|---|---|---|
| BRANCH | Short code for the issuing branch | ANN (Anna Nagar) |
| DOC_TYPE | Document type: invoice, receipt, credit note, prescription, pharmacy bill | INV |
| VISIT_TYPE | Outpatient or other visit context, where applicable | OP |
| SEQ | Consecutive sequence number within the fiscal year | 201 |
| FY | Indian fiscal year the document belongs to | 25-26 |
ANN/INV/OP-201/25-26 reads as: invoice number 201 for an outpatient visit, issued by the Anna Nagar branch, in fiscal year 2025-26. CuraVerto generates every document number automatically in the format BRANCH/DOC_TYPE/VISIT_TYPE-SEQ/FY, with the sequence resetting on April 1.
An invoice dated 31 March and one dated 1 April fall into different fiscal-year series, one day apart.
| Invoice date | Fiscal year | Document number |
|---|---|---|
| 31 March 2026 | 25-26 | ANN/INV/OP-1042/25-26 |
| 1 April 2026 | 26-27 | ANN/INV/OP-1/26-27 |
| 1 April 2026, second branch | 26-27 | TNR/INV/OP-1/26-27 |
CuraVerto computes the fiscal year from the invoice date itself, with no manual reset and nothing for staff to remember. On the same morning, a second branch starts its own fresh sequence.
CuraVerto keeps a separate, atomic sequence for each branch, so two branches can never issue the same invoice number.
For an intra-state supply, GST at 18 percent is charged as CGST at 9 percent and SGST at 9 percent, each on its own line.
Which of your services are taxable and which are exempt is a determination for your chartered accountant, and this article deliberately does not make it for you. CuraVerto applies the configured CGST 9 percent plus SGST 9 percent split automatically on taxable intra-state line items, so the invoice is correct when it is generated, not fixed later in a spreadsheet.
CuraVerto treats every issued document number as immutable: never edited, reused, or reassigned.
Corrections happen through credit notes or fresh documents that reference the original.
Numbering is an outcome of the system, not a task on a person.
Clinic invoices in India should follow a consecutive serial number that is unique within each financial year. Because the Indian fiscal year runs April 1 to March 31, the invoice series should reset on April 1, not January 1. Multi-branch clinics should also namespace the sequence per branch, so two branches never issue the same invoice number. Once issued, a number should never be edited or reused.
The Indian fiscal year boundary is April 1. An invoice issued on 31 March 2026 belongs to FY 25-26, and an invoice issued on 1 April 2026 belongs to FY 26-27, even though only one day separates them. Billing software built for India should compute the fiscal year from the invoice date automatically and start a fresh sequence for the new year without any manual reset.
When a taxable line item on an intra-state clinic invoice attracts GST at 18 percent, the tax is split equally into CGST at 9 percent and SGST at 9 percent, each shown as a separate line on the invoice. Which services are taxable and which are exempt is a question for your chartered accountant. Good clinic software lets you configure the correct GST treatment per service and then applies the split automatically.
They should not. When two branches draw from a single sequence, simultaneous billing produces duplicate or out-of-order numbers, and auditors flag both. The cleaner design is a separate sequence per branch, with the branch code embedded in the document number itself. That way each branch produces a gap-free series of its own, and a document number alone tells you which branch issued it.
No. An issued invoice number should be treated as immutable. If the invoice itself is wrong, the correction path is a credit note or a fresh invoice that references the original, never an edit to the number. Renumbering issued invoices creates exactly the gaps and duplicates that GST audits are designed to catch, and it destroys the audit trail that proves your books are complete.
Yes. With branch series enabled for a branch, CuraVerto generates its document numbers in the format BRANCH/DOC_TYPE/VISIT_TYPE-SEQ/FY, for example ANN/INV/OP-201/25-26. The sequence is atomic and collision-free, resets automatically on April 1, is maintained separately for each branch, and covers invoices, payment receipts, pharmacy documents, and other billing documents. Once generated, a number is never changed.
CuraVerto generates GST-correct invoices with per-branch, fiscal-year-aware document numbers automatically. Flat annual pricing, no per-doctor fees.
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