---
title: "HSN Code for Diethyl phosphite | HSN 29209043 GST Rate"
description: "Find HSN and GST Rates for 29209043 related to Diethyl phosphite with BUSY Accounting - The reliable source for HSN and GST details in India."
canonical: "https://busy.in/hsn/hsn-29209043/"
---

# HSN Code 29209043: Diethyl phosphite

- [Section 06: Guide to HSN Section 06](https://busy.in/hsn/section-06/)
- [Chapter 29: Organic Chemicals](https://busy.in/hsn/chapter-29/)
- [Sub-chapter 2920: Inorganic acid esters and salts](https://busy.in/hsn/sub-chapter-2920/)

## GST rates

| Description | CGST | SGST | IGST | CESS |
| --- | --- | --- | --- | --- |
| Dimethyl phosphite | 9% | 9% | 18% | 0% |

## Frequently asked questions

### What products are classified under HSN 29209043 ?

It includes Para Anisidines

### Can we claim ITC on inputs used to trade Diethyl phosphite?

If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.

### Any common misclassification issue with Diethyl phosphite?

Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.

### Do e‑way bill and e‑invoice apply for Diethyl phosphite?

e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.

### How should mixed supplies be billed when Diethyl phosphite is sold with other items?

Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for Diethyl phosphite; Nil for exempt items if applicable).

### How much GST applies to Diethyl phosphite?

Under HSN 29209043, Diethyl phosphite attracts Varies when sold in taxable form. Describe the exact form on the invoice.

### Does packaging or labelling change the GST for Diethyl phosphite?

For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.