ISRC codes explained — what they are, why every track needs one, and how to get one free

An ISRC is the unique identifier for a specific music recording. It tells streaming platforms, radio stations, broadcasters, and collecting societies which recording they are playing — enabling royalty tracking, rights management, and income attribution at the level of individual tracks.

Every commercially released recording needs an ISRC. Without one, platforms cannot track the recording's streams or broadcasts correctly, and the royalty attribution that depends on accurate tracking fails. Digital stores will not list a track without an ISRC.

What ISRC stands for and what it identifies

ISRC stands for International Standard Recording Code. The key word is recording — an ISRC identifies a specific sound recording, not the underlying composition.

This distinction matters practically: if you release a full mix of a track, a radio edit, an instrumental version, and a remix, each of these is a separate recording and requires its own ISRC. The composition they are all based on has one ISWC (International Standard Musical Work Code) — a different identifier for the song itself. The four recordings of that song have four different ISRCs.

A cover version of someone else's song also gets its own ISRC — your recording is a distinct sound recording from all other recordings of the same composition.

What the 12 characters mean

Every ISRC follows the same 12-character format: CC-XXX-YY-NNNNN

CC: Two-letter country code identifying the country of the person or organisation that registered the code. For UK-registered ISRCs, this is GB. US codes are typically US, QM, or QZ.

XXX: Three characters (letters and/or numbers) assigned to the individual or organisation that registered the ISRC — the registrant code. If you use a distributor like TuneCore or Distrokid, this is the distributor's registrant code. If you register directly with PPL as a UK artist, you receive your own unique three-character registrant code.

YY: Two digits representing the year the ISRC was assigned. A code registered in 2025 has 25 in this position.

NNNNN: Five digits assigned by the registrant to this specific recording — the designation code. These run sequentially from 00001 upwards. PPL recommends assigning these in track listing or release order.

A complete UK-registered ISRC looks like: GB-ABC-25-00001

Once an ISRC is assigned to a recording, it is permanent. The code stays with that recording forever — even if the rights change hands, the distributor changes, or the recording is re-released in a different context.

ISRC vs ISWC vs UPC — the three identifiers

These three codes are frequently confused. Here is the clear distinction:

ISRC (International Standard Recording Code): identifies one specific sound recording — one track, one file. Every version of a song (radio edit, instrumental, remix) has its own ISRC. This is what streaming platforms use to track plays and route royalties.

ISWC (International Standard Musical Work Code): identifies the underlying composition — the song itself. One composition has one ISWC regardless of how many recordings exist of it. Assigned by PROs including PRS for Music in the UK when you register a work.

UPC (Universal Product Code): identifies the product — the release as a whole. An album with ten tracks has one UPC and ten ISRCs (one per track). The UPC is essentially the barcode on the packaging; the ISRC is the fingerprint on each individual recording inside it.

All three are used in professional music distribution and rights management. They identify different things at different levels of specificity.

How to get an ISRC in the UK

There are two routes, and both are free.

Route 1: Through your digital distributor

When you upload a track for distribution through a service like TuneCore, Distrokid, CD Baby, or Amuse, an ISRC is automatically assigned to your track as part of the upload process. You do not need to apply for it separately — the distributor handles this.

The ISRC assigned by your distributor uses the distributor's registrant code (the XXX portion of the format), not your own. This is standard and does not affect how the ISRC functions. The ISRC is embedded in your track's metadata at the point of distribution and follows the track everywhere it is played.

This is the route most independent artists take, and it works correctly. The important thing after distribution: save your ISRCs for each track. You need them for PRS work registration, PPL registration, and any sync clearance documentation.

Route 2: Directly through PPL

PPL is the UK's national ISRC agency. You can request an ISRC directly from PPL, either as a PPL member or without being a member. PPL assigns ISRCs at no charge.

If you register directly with PPL for an ISRC, you receive your own unique three-character registrant code, meaning every ISRC you assign yourself uses GB-[your code]-[year]-[number]. This is useful for artists who want their own registrant code for professional or catalog management reasons — it gives you full control over the designation numbers you assign to your recordings.

To request an ISRC through PPL: log in to your myPPL account or use PPL's ISRC registration page. This is also the route if you already have a track released through a distributor and need to confirm or retrieve its ISRC.

When to assign a new ISRC

A new ISRC is required for each distinct recording. The general principle: if the audio file is different, it needs a new ISRC.

• A radio edit of a track: new ISRC.
• An instrumental version: new ISRC.
• A remix by another artist: new ISRC.
• A remastered version: in most cases, a new ISRC — confirm this with PPL, as practice varies.
• A track re-released on a new album or compilation: the same ISRC as the original release, assuming the audio file is the same recording.
• A cover version of someone else's song: new ISRC for your recording.

The same recording on a single, then on an album, then in a compilation: same ISRC throughout.

Why ISRC accuracy matters for royalties

The ISRC embedded in your track is how streaming platforms tell PPL what was played and when. PPL then cross-references against its registry of recordings and performers to calculate neighbouring rights royalties. If the ISRC in your audio file does not match the ISRC registered with PPL, the attribution chain breaks and the royalties do not reach you.

For PRS work registration, the ISRC links the composition record to the recording — essential for cue sheet matching when a track is broadcast and performance royalties need to be attributed.

For sync clearance documentation, the ISRC identifies the specific recording being licensed — master use licence documents should always reference the ISRC to make the licensed recording unambiguous.

TYFRA Vault stores the ISRC for every track in your catalog alongside full metadata. When you share a track from Vault, the ISRC is visible in the share link display — the supervisor or A&R contact sees it alongside BPM, key, and all other relevant information. When you register works with PRS, the ISRC from Vault is the reference number.

Checking your existing ISRCs

If you need to look up the ISRC for an already-released track, the ISRC Finder tool at isrcsearch.ifpi.org allows you to search by artist name or track title for any commercially distributed recording. This is useful if you need to retrieve an ISRC that your distributor assigned but you did not record at the time.