HUID Hallmarking Compliance for Jewellers: The Complete 2026 Guide

If you sell gold jewellery in India, HUID — Hallmark Unique Identification — is no longer optional paperwork. It is a legal requirement enforced by the Bureau of Indian Standards (BIS), and getting it wrong can mean seized stock, penalties, or a suspended licence. This guide walks through what HUID actually is, who it applies to, how the tagging process works day to day, and how to stop it from slowing down your billing counter.

What is HUID and why does it exist?

HUID is a unique six-digit alphanumeric code assigned to every individual piece of hallmarked gold jewellery or artefact. Unlike the older hallmarking system, where one hallmark could cover a batch of similar items, HUID ties a single code to a single physical piece — its purity, its origin, and its full compliance trail are all recorded against that one number in BIS’s central database.

The intent is traceability. If a customer disputes purity, if a piece is returned, or if BIS conducts an audit, the HUID code should be enough to pull up exactly which Assaying & Hallmarking Centre (AHC) tested it, on what date, and at what purity.

Who is required to hallmark with HUID?

BIS hallmarking with HUID is mandatory for gold jewellery and gold artefacts sold by registered jewellers across notified districts, covering 14, 18, 20, 22, 23 and 24 karat purity. Coverage has expanded steadily district by district, so if you haven’t checked your district’s current status recently, it’s worth a fresh look on the BIS CARE portal before assuming you’re exempt.

Silver jewellery hallmarking exists under a separate, currently voluntary scheme in most regions — but that is also expected to tighten over time, so building the habit of full traceability now saves a scramble later.

The HUID process, step by step

1. Get your jewellery business registered with BIS and hold a valid BIS registration certificate for your outlet or manufacturing unit.
2. Send unhallmarked pieces to a licensed Assaying & Hallmarking Centre (AHC). The AHC tests purity and, if it passes, applies the hallmark and generates a unique HUID code for that piece.
3. Record the HUID against your inventory. Each piece now carries four hallmark elements: the BIS mark, the purity grade, the AHC’s identification mark, and the six-digit HUID.
4. Match HUID to your stock and billing system so that when the piece is sold, exchanged, or returned, the correct HUID travels with the invoice and the customer’s purchase record.
5. Retain records for the period BIS requires, so any future audit can be answered by pulling stock history rather than reconstructing it from memory.

Where jewellers actually lose time and money on HUID

The compliance rule itself is simple. The operational reality is where most showrooms and manufacturing units struggle:

• Manual registers. Writing HUID codes into a notebook or spreadsheet against hundreds of SKUs is slow and error-prone — a single transposed digit breaks the traceability chain BIS is trying to enforce.
• Disconnected billing. If your POS software doesn’t have a HUID field, staff either skip it under counter pressure or write it on a paper slip that gets lost.
• Exchange and buy-back confusion. Old-gold exchange transactions need to record which HUID left inventory and which new HUID came in — manual systems routinely mix this up.
• Audit stress. When BIS or a GST officer asks for hallmark records on short notice, teams relying on spreadsheets can spend days assembling what should be a five-minute lookup.

How ERP software removes the manual work

The fix isn’t more discipline at the counter — it’s making HUID a native field in the system your team already uses to sell jewellery. A jewellery ERP built for the Indian market records the HUID against every SKU the moment it enters inventory, links it to karat purity and gross/net weight automatically, and pulls it onto the invoice without anyone re-typing it.

This matters most at three points in the workflow:

• At the billing counter — the HUID prints on the customer’s invoice automatically, satisfying both BIS traceability and customer trust, with no extra step for staff.
• At old-gold exchange — the system retires the outgoing HUID from live stock and attaches the new HUID cleanly, so your inventory count and your compliance trail never drift apart.
• At audit time — instead of searching paper registers, a manager can filter stock by HUID, date, purity, or AHC and export a clean report in minutes.

This is exactly the kind of jewellery-specific workflow that a generic accounting package or retail POS was never built to handle — see our breakdown of the difference between jewellery retail software and repurposed general retail tools.

A quick HUID compliance checklist

• Confirm your district’s current HUID mandate status on the BIS CARE portal.
• Verify your BIS registration certificate is current for every outlet and manufacturing unit.
• Check that every piece of gold jewellery in live stock carries a valid HUID before it reaches the sales floor.
• Make sure your billing software has a dedicated HUID field — not a free-text note — so it can’t be skipped or duplicated.
• Run a monthly reconciliation between hallmarked stock received from AHCs and HUID records in your inventory system.

Frequently asked questions

Is HUID mandatory for all gold jewellery in India?

It is mandatory for 14, 18, 20, 22, 23 and 24 karat gold jewellery and artefacts sold by BIS-registered jewellers in districts where the mandate has been notified. Coverage has expanded across most of the country, so jewellers should confirm their district’s current status directly with BIS rather than assume based on past rules.

What happens if I sell jewellery without a valid HUID?

Selling gold jewellery without the required hallmark and HUID in a mandated district can result in penalties, seizure of non-compliant stock, and scrutiny of your BIS registration. The exact enforcement action depends on the case and jurisdiction.

Can old, already-hallmarked stock without a HUID still be sold?

BIS has issued transition rules at various points for stock hallmarked before HUID became mandatory. Jewellers holding older hallmarked inventory should check the current BIS guidance for their district rather than rely on outdated transition windows.

Does HUID apply to silver jewellery too?

Hallmarking for silver jewellery currently operates under a separate, largely voluntary framework in most regions, distinct from the mandatory gold HUID system — though jewellers should track this space, as coverage has been expanding for gold and may extend further.

Want to see how HUID tagging, purity-wise stock and GST-ready billing come together in one system? Book a free JewelryERP demo and bring your own stock data to the call.