There is one figure that has haunted the retail sector for decades: the average accuracy of inventory managed through manual processes hovers around 65 per cent. To put it another way: one in every three stock items shown in your system does not match what is actually in the shop. Decisions on what to restock, what to show as available online and what the website promises for in-shop collection are based on this inaccurate data.
RFID tackles precisely this problem, which is why it has become the standard identification technology in fashion retail and one of the fastest-growing technologies in other sectors. In this guide, we explain what RFID brings to retail, how it works in a shop’s day-to-day operations, which applications deliver results, and what to consider before tagging.
And one more thing: this month we’ll be at NRF Retail’s Big Show Europe (Paris, 15–17 September, Paris Expo Porte de Versailles), at stand B066. If you’re considering an RFID project for retail, this is the best place to see it for yourself, with the tags in hand.
What does RFID bring to retail?
RFID allows each item to be uniquely identified and counted without line of sight, at a rate of hundreds per second. For a retailer, this means that stock-takes, which used to be carried out once or twice a year, can now be done weekly or even daily, with accuracy rates exceeding 95 per cent according to studies by the RFID Lab at Auburn University — the foundation that makes true omnichannel retailing possible.
The cause-and-effect relationship is the key to the entire business case:
- Identification by item (each garment has its own serial number, not just its model number) → you know exactly how many units you have, not just how many you ‘should’ have.
- Mass scanning without line of sight → counting no longer takes up hours of staff time → stock is counted much more frequently.
- Frequent counting → system stock and actual stock align → the website can promise what the shop actually has in stock.
- Reliable stock → fewer size and colour shortages, fewer lost sales, fewer forced markdowns due to stock discrepancies.
How does RFID work in a shop? The full cycle
In retail, RFID operates as a cycle of scans on UHF tags (RAIN RFID) encoded by item: encoding at source → receipt verification → rapid stock-takes on the shop floor and in the warehouse → targeted restocking → and, if desired, exit control at the till or via EAS. Each scan updates the stock levels in the system (ERP/WMS or inventory platform).
- Labelling at source. The RFID tag — whether a hang tag, adhesive label or sewn-in tag — is encoded during manufacture or packaging with a unique identifier per garment (serialised EPC, typically an SGTIN based on the model’s GTIN). Encoding verified on a unit-by-unit basis during manufacture prevents duplicates and erratic reads later on.
- Receipt at the shop or warehouse. Boxes are scanned without being opened: within seconds, it is verified that the goods received match the delivery note, item by item.
- Cyclical stocktaking. An operator with a handheld scanner walks through the shop; thousands of garments are counted in minutes. It is this scanning that ensures accuracy.
- Targeted restocking. The system compares the sales floor with the back stockroom and generates a precise list of what to retrieve: size, colour, quantity.
- Checkout and exit (optional). The same tag can be used to speed up payment and as an anti-theft measure (RFID-based EAS), unifying tags.
- Returns and omnichannel. Every return is instantly reintegrated into saleable stock; online orders can be prepared from the shop using reliable stock (ship-from-store, click & collect).
RFID applications in retail
| Application | Problem it solves | How RFID solves it |
|---|---|---|
| Cyclical stock-taking | Theoretical stock figures do not match actual stock | Full stock-takes completed in minutes using a handheld reader; sustained accuracy > 95% |
| Shop floor restocking | Sizes sold out on the rails but still in stock in the back room | Automatic comparison of shop floor and back-of-house stock, with a restocking list by item |
| Omnichannel (BOPIS / ship-from-store) | Cancellations of online orders due to phantom stock | Only items confirmed by in-store stock counts are listed online |
| Receptions and dispatches | Picking errors and discrepancies with the delivery note | Unit-by-unit verification without opening boxes; studies by Auburn/GS1 US put RFID dispatch accuracy at close to 100 per cent |
| Shrinkage | Unexplained stock discrepancies | Item-level visibility to track where products go missing; EAS on the label itself |
| Customer experience | Limited interaction with the product | Smart fitting rooms, fast self-checkout and, with the advent of RAIN scanning on smartphones, direct customer interaction with the garment |
Practical example: fashion chain with 40 shops
Situation. A chain with 40 shops, 2 million garments per year and growing online sales. Physical stock-taking twice a year; estimated accuracy of 68 per cent; frequent cancellations of online orders due to phantom stock.
RFID implementation.
- Tag: hangtag with a UHF RFID inlay encoded at source (SGTIN per garment), verified item by item during manufacture.
- Scans: goods-in using a handheld reader in each shop; weekly cycle counting (45–60 minutes per shop); daily targeted replenishment.
- Integration: scan events fed into the WMS/ERP; the e-commerce platform publishes availability by shop based on RFID stock levels.
Expected outcome. Stocktaking shifts from being an annual event to a weekly routine; accuracy converges towards industry benchmark levels (>95 per cent); restocking is no longer dependent on staff intuition; and the shop can function as a mini omnichannel warehouse. We do not promise sales figures: these depend on the starting point — what changes is the reliability of the data on which decisions are based.
Common mistakes when implementing RFID in retail
- Tagging in-store rather than at source. Operational costs skyrocket and the quality of the encoding suffers. The tag must arrive already attached and verified.
- Choosing the tag based solely on price. An ill-suited tag (antenna size, chip, placement on folded garments or those with metal trimmings) impairs readability and, with it, the entire business case.
- Measuring success solely on the pilot. The value becomes apparent when cyclical stock-taking becomes routine; this requires operational discipline, not just technology.
- Failing to integrate with e-commerce. If the website continues to display theoretical stock levels, omnichannel performance will not improve, even if the shop’s stock is accurately counted.
- Ignoring returns. Reinstating them into saleable stock within minutes is one of the most profitable yet most overlooked levers.
Trace-ID tags for retail and fashion
At Trace-ID, we design and manufacture RFID tags in Barcelona, featuring our own antenna design, unit-by-unit verified encoding (using Voyantic equipment) and specific formats for clothing and textiles:
- TAR17/18 RFID tag (Impinj M700 series chips) · TARu8/u9 (NXP UCODE 8/8m/9 chips): general-purpose UHF inlay (42×16 mm antenna, global 860–960 MHz band, RAIN RFID / EPC Gen2v2), with stated applications in the clothing, retail and supply chain sectors. The TID with a unique serial number adds a layer of authenticity to each garment.
- TH-Wing RFID tag (M7/M8/U8): format used in textile applications (50×30 mm antenna), available as a version sewn onto a satin strip or in a ticket/sticker format with the inlay protected.
- Custom formats: hangtags featuring your own graphic design, adhesive labels for packaging, and RFID + QR code combinations to prepare for the Digital Product Passport (DPP), which will be introduced to the textile sector in the coming years.
See you at NRF Retail’s Big Show Europe (Paris)
If your team is considering RFID for retail — inventory, omnichannel operations, shrinkage or preparing for the future digital textile passport — come and see us: we’ll be bringing samples of labels for clothing and textiles, customisable formats and real-world examples of in-source encoding. Please get in touch beforehand if you’d like to book a meeting at the stand.
Frequently asked questions about RFID in retail
What is RFID in retail?
It is the use of UHF RFID tags (RAIN RFID) encoded per item to identify and count products without line of sight throughout the entire shop operation: receiving, stocktaking, restocking, sales and returns. It is based on unique identification per unit, not per model.
What level of stock accuracy does RFID achieve?
Studies by the RFID Lab at Auburn University in collaboration with GS1 US put accuracy for manual processes at around 65 per cent and for mature RFID programmes at over 95 per cent, with dispatch accuracy close to 100 per cent. The key is not a one-off scan, but making stock-taking a regular practice.
How long does it take to carry out an inventory count using RFID?
A medium-sized fashion shop can be fully counted in less than an hour using a handheld reader, compared to whole days’ work with barcodes. That is why stock-taking is shifting from once a year to weekly or daily.
Is RFID in retail useful for anti-theft?
Yes: the same RFID tag can function as EAS (electronic article surveillance), combining the inventory tag and the anti-theft tag. It also offers something that traditional EAS does not: the ability to know exactly which item has left the shop.
What sort of RFID tag is used on clothing?
Usually a cardboard hangtag with an integrated UHF inlay, or an adhesive label on the packaging; in workwear and premium fashion, there are also wash-resistant sewn-in formats. Encoding is carried out at source, with a unique identifier for each garment.
Can you read a garment’s RFID tag with a mobile phone?
It’s just getting started: the RAIN industry predicts 2026 as the year the first smartphones with integrated UHF reading capability will be released. Dedicated readers will continue to be used for in-store operations; mobile phones open up customer interaction with the product.
What is the relationship between RFID in retail and the Digital Product Passport?
The European Digital Product Passport (DPP) will require products to be identified and their information made accessible via a data carrier; the textile sector is a priority. Retailers who already serialise garments using RFID have much of the work done: a unique identifier, event tracking and hardware already in place.
Where can I see these tags in person?
From 15 to 17 September, we’ll be at NRF Retail’s Big Show Europe, at Paris Expo Porte de Versailles, stand B066, with samples of RFID tags for clothing, textiles and retail, and our technical team on hand to analyse your specific needs.
Would your stock stand up to an audit today?
A retail RFID project starts with the right tag: format (hangtag, adhesive or sewn-in), chip, antenna size and encoding verified at source. At Trace-ID, we manufacture RFID tags in Europe and can prepare samples based on your design to test on your actual garments — or show them to you in person at NRF Paris (stand B066, 15–17 September).
Sources and documentation
- Auburn University RFID Lab + GS1 US — Studies on inventory and dispatch accuracy using EPC/RFID in retail (manual accuracy ~65 per cent, with RFID >95 per cent; order accuracy close to 100 per cent). gs1us.org — case study
- RAIN Alliance — “RAIN RFID in 2026: What to Expect”: RAIN reading on smartphones and adoption in retail. therainalliance.org
- NRF — NRF Retail’s Big Show Europe 2026: 15–17 September, Paris Expo Porte de Versailles. nrfbigshoweurope.com
- Trace-ID — 2025 Tag Catalogue (TAR17/18, TARu8/u9, TH-Wing specifications). trace-id.com
Contact us for more information focused on your needs. If you wish to receive information about RFID technology, subscribe to our magazine.
