HSN code · Customs Tariff of India · GST rate
90172020 is the 8-digit HSN code for “Other drawing, marking-out or mathematical calculating instruments: Mathematical calculating instruments”: tariff item 9017 20 20 under heading 9017 of the Customs Tariff of India. The GST rate depends on the goods: the entries for this code carry 5% or 18%. Search a code or product below, or copy the code for your invoice.
This code
Chapter 90Heading 9017Sub-heading 9017 20Tariff item 9017 20 20
Other drawing, marking-out or mathematical calculating instruments: Mathematical calculating instruments
Tariff item 9017 20 20 · Heading 9017 · Chapter 90, Customs Tariff of India
The code
What the code covers in the Customs Tariff of India, and the GST rate entries that apply to it.
901720208 digits: 90 + 17 + 20 + 209017 20 20Mathematical calculating instrumentsHow to read it
An HSN code is built in layers. Each pair of digits narrows the one before it: 2 digits = chapter, 4 = heading, 6 = sub-heading, 8 = tariff item in the Customs Tariff of India.
The broadest layer. Chapter 90 covers optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus, parts and accessories thereof. It sits in Section XVIII, optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof.
Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter.
Other drawing, marking-out or mathematical calculating instruments.
Mathematical calculating instruments. The full 8-digit code used in the Customs Tariff of India and on invoices that show the complete HSN.
Unit of quantity: u.
GST rate
8 entries of the GST rate notifications name this code's heading or particular goods in its chapter, and they carry 5% or 18%. No single rate is stated for 90172020 here; read each entry's official description against your goods.
| Entry | Tariff column, as printed | Description, as printed | GST rate |
|---|---|---|---|
| Entry that cites 9017 (this code's heading) | |||
| Schedule II, S. No. 570Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 9017 | Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter | 18%IGST 18% · CGST 9% · SGST/UTGST 9%From 22 September 2025 |
| Entries for particular goods in chapter 90 | |||
| Schedule I, S. No. 473Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 | Coronary stents and coronary stent systems for use with cardiac catheters | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 474Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or any other Chapter | Artificial kidney | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 475Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or any other Chapter | Blood glucose monitoring system (Glucometer) and test strips | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 476Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or any other Chapter | Patent Ductus Arteriosus / Atrial Septal Defect occlusion device | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 477Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or any other Chapter | Parts of the following goods, namely: - (i) Crutches; (ii) Wheel chairs; (iii)Walking frames; (iv)Tricycles; (v)Braillers; and (vi) Artificial limbs | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 478Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or any other Chapter | Assistive devices, rehabilitation aids and other goods for disabled, specified in List 1 appended to this Schedule | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
| Schedule I, S. No. 479Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 90 or 84 | Disposable sterilized dialyzer or micro barrier of artificial kidney | 5%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
Each entry applies only to the goods it describes. If none describes your goods, the entry for goods not specified elsewhere applies: Schedule II, S. No. 639, 18%: “Goods which are not specified in Schedule I, III, IV, V, VI or VII”.
Rates are IGST on inter-State supplies; on supplies within a State the same rate is split equally between CGST and SGST/UTGST, under Notification No. 9/2025-Central Tax (Rate) with the same S. Nos.
On your invoice
Notification No. 78/2020-Central Tax dated 15.10.2020 sets the minimum number of HSN digits on B2B tax invoices from 1 April 2021, by the business's aggregate turnover in the previous year.
Businesses with aggregate turnover up to ₹5 crore in the previous year show at least the heading, 9017, on B2B tax invoices.
Above ₹5 crore, at least the sub-heading, 901720, goes on B2B tax invoices.
Many businesses show the full 90172020, the tariff item itself.
Rate history
Rate depends on the goods
Notification No. 9/2025-Integrated Tax (Rate) and No. 9/2025-Central Tax (Rate) dated 17.09.2025 (as corrected 18.09.2025), which superseded Notification No. 1/2017-Integrated Tax (Rate) dated 28.06.2017. The 8 entries in force from this date are listed in the GST rate section above.
Earlier rates under Notification 1/2017 are not shown here
Notification No. 1/2017-Integrated Tax (Rate) dated 28.06.2017 applied until it was superseded by Notification 9/2025.
Related codes
Heading 9017, drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter. The codes below sit closest to 90172020 in the Customs Tariff of India: the other tariff items under heading 9017. Each is shown in the official wording and has its own page with its GST rate entries. Use the search above for any other code.
90172010Tariff item 9017 20 1090173010Tariff item 9017 30 1090173029Tariff item 9017 30 2990178010Tariff item 9017 80 1090178090Tariff item 9017 80 9090179000Tariff item 9017 90 0090171000Tariff item 9017 10 0090172020, this page's code, is tariff item 9017 20 20 under the same heading. One of the codes listed shares its sub-heading, 9017 20.
Questions
It depends on the goods: 8 entries of the rate notifications name this code's heading or particular goods in its chapter, and they carry 5% or 18%: Schedule II, S. No. 570 (18%); Schedule I, S. No. 473 (5%); Schedule I, S. No. 474 (5%); Schedule I, S. No. 475 (5%); Schedule I, S. No. 476 (5%); Schedule I, S. No. 477 (5%); Schedule I, S. No. 478 (5%); Schedule I, S. No. 479 (5%). Each entry applies only to the goods it describes; if none describes your goods, Schedule II, S. No. 639 (18%) applies. The full wording of every entry is in the GST rate section above.
At least 4 digits if your aggregate turnover in the previous year was up to ₹5 crore, and at least 6 digits above ₹5 crore, on B2B tax invoices (Notification No. 78/2020-Central Tax dated 15.10.2020, from 1 April 2021). For this code that is 9017 or 901720; many businesses use the full 90172020.
Tariff item 9017 20 20 of the Customs Tariff of India, First Schedule: “Mathematical calculating instruments”, under sub-heading 9017 20 (“Other drawing, marking-out or mathematical calculating instruments”), heading 9017 (“Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not specified or included elsewhere in this chapter”), in chapter 90 (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus, parts and accessories thereof), Section XVIII (optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof). Unit of quantity: u.
About this page
The section, chapter, heading, sub-heading and tariff item on this page are taken from the Customs Tariff of India, First Schedule (Customs Tariff Act, 1975), CBIC edition as on 30 June 2024, with the tariff-line changes of the Finance (No. 2) Act 2024, Finance Act 2025 and Finance Act 2026 applied. The GST entries are taken from Notification No. 9/2025-Integrated Tax (Rate) and No. 9/2025-Central Tax (Rate) dated 17.09.2025 (as corrected 18.09.2025), as amended by Notifications 19/2025 and 01/2026; exemptions: Notification No. 10/2025.
This is reference information for classification and invoicing. It is not advice on how your own goods should be classified, and the official tariff and notifications prevail if the two ever differ. A change in the tariff or in a rate notification re-opens this page for an update.
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