The $424 Million Nobody Claimed, and the 2027 Deadline That Could Wipe It Out

The streaming services seeded the Mechanical Licensing Collective with $424,384,787. That pile has a name in the business: black box money, mechanical royalties nobody could trace back to an owner. The MLC is the body Congress created to pay songwriters their streaming mechanicals, and that 2021 transfer was its opening balance. Plenty of it has been matched and paid since. The rest is still sitting there, and the clock on it is running.

Here is the part a Houston artist needs to read twice. The MLC plans to start handing out the leftover unmatched money by market share, monthly, song by song, starting early 2027. Market share is the catch. Split a pool by who already owns the most, and the majors take the lion's share. The independent who never registered a composition ends up with a thin slice, or none at all.

The makeup of that opening deposit tells you how the money got stranded. Apple Music put in more than $163 million. Spotify put in more than $152 million. The other services covered the rest. None of it paid out the normal way, because the metadata was broken or the song was never registered with the Copyright Office. A lot of that missing paperwork traces back to DIY artists who uploaded through a distributor and never claimed the publishing side.

The mechanic is simple, and the result is ugly. Every time your song streams, a service owes a mechanical royalty. To pay it, the service has to match the recording to whoever wrote it. Miss that match and the money does not disappear. It stacks up. After three years unmatched and one year parked at the MLC, that money is eligible to be carved up by market share instead of paid to the writer who earned it.

On June 3, 2026, the Copyright Office ran its periodic review of the MLC in the Federal Register, the routine check on whether the collective is doing its job. That review leaves the 2027 timeline alone. It is just a sign that regulators are watching, and that the window to claim is the artist's to use or lose.

So what is the move before that door swings shut? Register every composition you have put out. Claim your songs inside the MLC portal so a match can actually land on you. Get your splits and your publishing data clean at the distributor and the performing rights organization. The money in that pool is real, and your name only reaches it if your paperwork says it should. Our creator education guides cover the registration side without the fluff.

This is not a threat. It is a date on a calendar. When the MLC starts paying out the remainder pro rata by market share in early 2027, the unclaimed share will not wait for you to get organized. It goes to the catalogs that already did.

The market share distributions of the remaining unmatched royalties are set to begin in early 2027. The window to register and claim is open until then.

Sources

1. The MLC Receives Over $424M in Unmatched Black Box Streaming Royalties (Billboard / themlc.com)
2. Periodic Review of the Designations of the Mechanical Licensing Collective (Federal Register, June 3, 2026)
3. How Much Money Is There in Unclaimed Black Box Royalties? (Billboard)

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