Q3HSN Code 8540
Thermionic, cold cathode or photo-cathode valves and tubes
Thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes)
GST rate
18%
Codes under 8540
| Code | Description | GST rate |
|---|---|---|
| 8540 11 | Colour: | 18% |
| 8540 11 10 | Television picture tubes of 20" and 21" size, except 21" flat and full square (f and fst) colour TV picture tubes | 18% |
| 8540 11 20 | Video monitor cathode-ray tubes | 18% |
| 8540 12 | Monochrome | 18% |
| 8540 20 | Television camera tubes, image converters and intensifiers, other photos-cathode tubes | 18% |
| 8540 40 | Data or graphic display tubes, monochrome, data or graphic display tubes, colour, with phosphor dot screen pitch smaller than 0.4 mm: | 18% |
| 8540 40 10 | Data or graphic display tubes, monochrome | 18% |
| 8540 40 20 | Data or graphic display tubes, colour, with a phosphor dot screen pitch smaller than 0.4 mm | 18% |
| 8540 60 | Other cathode-ray tubes — thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes) | 18% |
| 8540 71 | Magnetrons | 18% |
| 8540 79 | Thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes) › Other | 18% |
| 8540 81 | Receiver or amplifier valves and tubes | 18% |
| 8540 89 | Thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes) › Other | 18% |
| 8540 91 | Cathode-ray tubes — thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes) | 18% |
| 8540 99 | Thermionic, cold cathode or photo-cathode valves and tubes (for example, vacuum or vapour or gas filled valves and tubes, mercury arc rectifying valves and tubes, cathode-ray tubes, television camera tubes) › Other | 18% |
← Chapter 85: Electrical machinery and equipment
Related HSN codes
Frequently Asked Questions
What is the HSN code for thermionic, cold cathode or photo-cathode valves and tubes?
The HSN code for thermionic, cold cathode or photo-cathode valves and tubes is 8540, under Chapter 85 (Electrical machinery and equipment).
What is the GST rate on thermionic, cold cathode or photo-cathode valves and tubes?
Thermionic, cold cathode or photo-cathode valves and tubes is taxed at 18% GST under HSN code 8540.
How many digits of the HSN code go on a GST invoice?
It depends on your turnover in the previous financial year: businesses above ₹5 crore generally show 6 digits (8 for certain specified goods), and smaller businesses show 4 digits on B2B invoices. Check the current e-invoicing/HSN notification for the exact threshold that applies to you.
Rates as per Notification No. 9/2025-Central Tax (Rate), as amended, as of 7 October 2026. For guidance only — verify with your tax advisor.