The number everyone quotes
The most cited number in music rights is $561 million. It appears in panel discussions, investor decks, and trade press as shorthand for the scale of unclaimed royalties in the streaming economy.
It is also the smallest defensible number in the system.
The figure refers to historical unmatched mechanical royalties held by the Mechanical Licensing Collective in the United States, accumulated in the early years following the Music Modernization Act. One country. One rights type. One collection entity. A defined early-period window.
Everything about the number is narrow. That is precisely why it matters. Once the mechanics are understood, the implication is straightforward: the global total is not hundreds of millions. It is multiples of that figure.
What the MLC actually reports
The MLC's own reporting has evolved since the original $561M estimate entered circulation. The most recent annual report shows:
- Historical unmatched royalties collected: $397.2 million
- Historical unmatched royalties distributed: $201.4 million
- Remaining historical unmatched pool: $195.8 million
These sit alongside current-period matching rates of approximately 80 to 86 percent for usage years 2021 to 2024. There are two pools, not one. The legacy unmatched, which produced the original headline. And the ongoing unmatched, a continuous condition the system never fully closes.
How money becomes unmatched
Royalties do not become unclaimed through a single failure. They accumulate through layered friction across the data chain. Five conditions are consistently present.
- Registration gaps. A composition exists in commercial circulation but is not fully registered with a society.
- ISWC-ISRC mismatches. The relationship between the work and the recording is incomplete, duplicated, or inconsistent.
- Metadata variance. Writer names, titles, and publisher fields differ across datasets. Minor discrepancies compound at scale.
- Ownership lag. Catalogue acquisitions and sub-publishing arrangements outpace database updates. Collections continue against outdated structures.
- Cross-territory complexity. Usage occurs in one territory, rights are administered in another, collection flows through intermediaries. Each link introduces loss.
None of these are exceptional. They are structural.
What happens when the clock runs out
Under the Music Modernization Act, unmatched royalties are not held indefinitely. After a statutory holding period during which the MLC attempts to match usage, residual amounts become eligible for redistribution.
The mechanism is market-share allocation. The unmatched pool is distributed proportionally based on the market share of works that were successfully matched. The consequence is a structural paradox.
The more complete your data, the more likely you are to receive income generated by incomplete data elsewhere.
Unmatched does not mean undistributed. The money does not disappear. It moves. Large, well-registered catalogues receive a proportionate share of income generated by gaps in smaller, poorly-registered catalogues. From a system perspective this is efficient. From a rights-holder perspective it is uneven.
The arithmetic
The $561M figure gained traction because it was the first widely cited number tied to a modern digital licensing system. It was visible, large, and easy to communicate. Its limitations are clear. It excludes performance, neighbouring rights, sync, and physical revenue. It excludes every territory outside the United States. It reflects an early-period accumulation, not a steady state.
The United States is one of more than 80 active collective management territories. Mechanical is one of several primary rights categories. The MLC operates within a relatively advanced data environment. Even a conservative extrapolation across rights types, geographies, and the full historical catalogue points to a global figure measured in the billions, not the millions.
The operational point
Unmatched income is not evenly distributed across the system. It concentrates where registration is incomplete, ownership records are outdated, cross-territory administration is fragmented, and legacy catalogues have not been systematically audited. These conditions are common in mid-sized and historical catalogues.
The recovery question follows. The system cannot fully allocate income at scale, so there is value in identifying and correcting the data gaps that produce the misallocation. The effect is not to create new income. It is to redirect existing income to its intended recipients.
Close
The industry has adopted $561 million as a headline number. It is useful, but incomplete. The real story is not the size of a single unmatched pool. It is the structure that produces it, repeatedly, across territories, rights types, and time.
One country. One rights type. One system. Hundreds of millions.
The arithmetic beyond that point is not complicated.