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March 23, 2026

The 3-Year Music Royalty Deadline You Don’t Know About

Somewhere between your streams and your bank account, money is sitting unclaimed - and it has an expiration date. Most independent artists assume that if they’re on Spotify, they’re getting paid. They’re not - at least not fully. Every song that gets streamed generates mechanical royalties owed to the songwriter, and those royalties only get paid if your works are properly registered. When they’re not, the money piles up in a pool called the black box. And that pool has a three-year countdown.

This isn’t a bureaucratic technicality. It’s a financial deadline that permanently ends your right to specific royalty payments once it passes. Understanding how it works - and acting before it expires - is one of the most important things an independent artist can do for their bottom line.

⚠️ The 3-Year Clock Is Already Running

The Music Modernization Act’s three-year holding period isn’t hypothetical — it’s actively counting down on royalties your songs may have already earned. If you’ve released music on streaming platforms without registering with the MLC, SoundExchange, or your PRO, there are likely funds in the black box tied to your catalog right now.

Once the holding period for a given distribution expires, those funds are liquidated and redistributed to major publishers. They cannot be recovered.

What Is the 3-Year Music Royalty Deadline (and Where Did It Come From)?

Before 2018, streaming platforms operated in a legal gray zone. Services like Spotify and Apple Music were licensing master recordings from labels but had no reliable system to license the underlying compositions - the songs themselves. The result was billions of dollars in mechanical royalties generated but never matched to their rightful owners.

Congress addressed this with the Music Modernization Act of 2018, which created the Mechanical Licensing Collective (MLC) as the central body responsible for collecting and distributing mechanical royalties from digital streaming platforms. Streaming services now pay a blanket license fee to the MLC, which then attempts to match those payments to the correct songwriters and publishers.

When a match can’t be made - because the work isn’t registered, metadata is incomplete, or ownership is disputed - the royalties go into what’s known as the black box pool. The MLC holds those funds for three years while continuing to attempt matching. After three years, unmatched funds are distributed to publishers based on their proportional market share - and the original rights holders lose their legal claim permanently.

Why the Three-Year Window Is a Critical Statute of Limitations

The three-year clock starts from the date the royalty was initially distributed to the MLC - not from when you discover the money exists. This is a critical distinction. By the time most independent artists learn about the black box, some of their earliest streaming royalties may already be within months of expiring.

Once the window closes on a specific distribution, your legal right to those funds is extinguished. You can’t appeal it, petition for an extension, or claim the money was owed - the MLC’s obligation under the statute ends, and the funds flow out to registered publishers based on market share.

The Risk of Permanent Loss via Black Box Income Distribution Rules

Here’s the part that should make every independent artist pay attention: the money doesn’t disappear. It goes to someone else. When black box funds are liquidated, they’re distributed proportionally to publishers with the largest market share - meaning Universal, Sony, and Warner end up collecting royalties that were originally earned by artists who simply didn’t register.

Your unclaimed royalties are, in effect, a subsidy for the majors. The independent artists who most need to collect every dollar they’ve earned are the ones most likely to lose it through inaction.

How the MLC’s Black Box Pool Works

The MLC’s matching system is more sophisticated than a simple database lookup, but it still depends entirely on having accurate information to work with. Understanding how the system operates helps explain why registration quality - not just registration itself - determines whether your money gets paid.

Matching Your Works to Historical Unmatched Royalties

The MLC maintains a public database of unmatched royalties tied to ISRCs (International Standard Recording Codes) and song metadata reported by streaming services. When you register your catalog with the MLC, their system automatically attempts to match your works against this pool of accumulated unmatched funds.

A successful match can unlock not just future payments but historical royalties going back to the MLC’s launch in 2021 - funds that were sitting unmatched because your works weren’t in their system yet. This retroactive matching is one of the most valuable aspects of registration and a key reason why artists who register later can still recover significant amounts.

Correcting Data Discrepancies to Unlock Withheld Funds

The most common reason royalties go unmatched isn’t that an artist hasn’t registered - it’s that the metadata in the MLC’s system doesn’t match what the streaming platforms reported. Misspelled names, missing ISWC codes, incorrect ownership splits, and inconsistent song titles all create matching failures.

This is why registration isn’t a one-time event. If you’ve registered but notice royalties still aren’t flowing, the likely culprit is a metadata mismatch somewhere in the chain. Verifying your songwriter splits, publisher information, and recording identifiers after registration is as important as the registration itself.

How Long the MLC Holds Funds Before Liquidation

The three-year holding period runs from the date of the original royalty distribution, not from when the MLC received the funds. In practice, this means royalties from streaming activity in, say, Q1 2022 would face a liquidation deadline sometime in early 2025. The MLC publishes its distribution schedule, but tracking which funds are approaching expiration across a large catalog requires ongoing attention - or a platform that does it automatically.

Which Royalties Are at Risk of Expiring

The three-year deadline applies specifically to mechanical royalties held by the MLC. But there are parallel issues at other collection organizations that independent artists also need to address.

Mechanical Royalties - The MLC

Mechanical royalties are owed to songwriters every time their composition is streamed or downloaded. These are separate from the master recording royalties your distributor collects on your behalf. If you wrote your songs, you have a right to mechanical royalties - and the only way to collect them is through

If you wrote your songs, you have a right to mechanical royalties - and the only way to collect them is through registration with the MLC. Distributors like DistroKid and TuneCore do not handle this on your behalf.

Digital Performance Royalties - SoundExchange

SoundExchange collects digital performance royalties from non-interactive streaming services: satellite radio (SiriusXM), Pandora, internet radio, and cable music channels. These royalties are separate from both mechanical royalties and the performance royalties your PRO collects.

Critically, registering with ASCAP or BMI does not cover SoundExchange. You must register separately at soundexchange.com to claim these royalties. SoundExchange also maintains a database of unclaimed funds that you can search for royalties already waiting.

The Difference Between Writer and Publisher Share Deadlines

Every mechanical and performance royalty is split into two portions: the writer’s share and the publisher’s share. Both shares face the same three-year deadline, but they require separate registrations. If you self-publish your music - meaning you haven’t signed with a publisher - you need to register as both songwriter and publisher to capture 100% of your royalty entitlement.

Many independent artists register as songwriters but forget the publisher registration, leaving the publisher’s share (typically 50% of the total) in the black box indefinitely.

Mechanical vs. Performance Royalties - Different Organizations, Different Rules

Mechanical royalties flow through the MLC. Performance royalties go through your PRO.

Performance royalties go through your PRO - ASCAP, BMI, or SESAC. Each organization has its own holding periods, distribution rules, and claim processes. Monitoring all of them simultaneously is the operational challenge that trips up most independent artists managing their own royalty collection.

How to Find Out If You Have Unclaimed Royalties Before the Clock Runs Out

The good news is that both the MLC and SoundExchange make their unmatched royalty databases publicly searchable. The not-so-good news is that searching manually across multiple platforms, cross-referencing ISRCs, and interpreting what you find is time-consuming - especially for artists with large catalogs.

How Unclaimed Money Is Reallocated to Top-Tier Artists

Before we get to the how-to, it’s worth understanding what’s actually at stake when funds liquidate. Expired black box money doesn’t go to a government fund or charity - it gets distributed to MLC-registered publishers based on their proportional share of matched royalties. The bigger the publisher, the bigger the cut they receive of your unclaimed money.

For independent artists, this means every dollar of yours that expires in the black box effectively becomes a dollar for Universal, Sony, or Warner. It’s a structural feature of the system that makes timely registration not just financially beneficial but genuinely urgent.

The Fastest Way to Check - Mogul’s Free Catalog Audit

Run Your Free Audit in Under 5 Minutes

Mogul’s audit tool scans your catalog against the MLC, SoundExchange, and other collection societies simultaneously — identifying every missing registration, flagging royalties at risk of expiring, and showing you exactly what you’re owed across all royalty types.

Run your free audit →

Prefer to Check Manually? Here’s How

If you want to search the databases yourself, here’s where to go:

The MLC’s Unmatched Royalty Search: Visit themlc.com and use the public search tool to look up works by song title, ISRC, or songwriter name. The database shows whether any of your works have unmatched royalties in the pool.
SoundExchange Unclaimed Royalties: Go to soundexchange.com and use their searchable database of unclaimed funds. Search by artist name, label, or recording title.
Your PRO’s Member Portal: ASCAP, BMI, and SESAC each have member portals where you can verify whether your works are registered and whether there are any unmatched performance royalties.

Step-by-Step: How to Claim Retroactive Mechanical Royalties

Claiming retroactive mechanical royalties requires registering your works with the MLC and allowing their matching system to run against the unmatched pool. Here’s what the process looks like:

What You’ll Need Before You Start

ISRCs for each recording (your distributor can provide these)
ISWC codes if available (these identify the composition, not the recording)
Split sheets or written agreements establishing songwriter ownership percentages
Publisher information — including your own if you self-publish
Any existing administration agreements with a publishing admin

Registering Your Works with The MLC

Create a free account at themlc.com and begin entering your song catalog. The MLC accepts both individual song registrations and bulk uploads via CSV for larger catalogs. Each registration requires songwriter name(s), ownership percentages, and any publisher or administrator information.

Once registered, the MLC’s system will automatically attempt to match your works against their unmatched royalty pool. This isn’t instantaneous - the matching process can take several distribution cycles - but the retroactive component means that successful matches can unlock payments going back to the MLC’s 2021 launch.

How to File a Claim for Historical Unmatched Royalties

For most works, registration triggers the automatic matching process and no additional claim filing is required. However, for works with complex ownership situations - co-writes with multiple publishers, disputed splits, or works previously registered under different metadata - you may need to submit supporting documentation to the MLC directly.

The MLC’s member support team can help navigate disputes, but the process can be slow. The more accurate and complete your initial registration, the less likely you are to need manual intervention.

What Information You Need to Complete Your Registration

Incomplete registrations are the most common cause of matching failures. Before submitting, confirm you have:

Accurate songwriter credits: Names spelled exactly as they appear in any existing registrations at PROs or publishers.
Correct ownership splits: Percentages that add up to 100% for both writer share and publisher share.
ISRCs for all recordings: Each recording of a song (original, remix, acoustic version, etc.) has its own ISRC and may have its own royalty pool.
Publisher or admin information: If you have a publishing admin agreement, include their name. If you self-publish, register a publishing entity.

What Happens to Your Money After the Deadline Passes

Where Black Box Funds Actually Go After Liquidation

Once the three-year holding period expires on a specific distribution, those funds enter the MLC’s liquidation process. They are then distributed to MLC-registered publishers based on each publisher’s proportional share of matched royalty payments during the same period.

In practice, this means a publisher with 30% market share of matched royalties receives 30% of all liquidated black box funds - regardless of whether any of those funds were originally associated with their catalog. The system is designed to approximate fair distribution, but for independent artists, it almost always means their unclaimed money ends up with someone who had nothing to do with their music.

Can You Still Recover Royalties After the 3-Year Window Closes?

For the specific distribution that has expired - no. Once the holding period ends, your legal right to those funds is permanently extinguished under the MMA. No appeals process exists, and the MLC has no obligation to reopen that distribution pool.

Future royalties remain fully collectible. And if you register after some funds have already expired, your registration still applies retroactively to any distributions still within the three-year window. This means that even late registrants can often recover a significant portion of their historical royalties - just not everything.

Why Your Distributor Won’t Save You From This

This is probably the biggest misconception in independent music: that being on DistroKid, TuneCore, CD Baby, or any other distributor means your royalty collection is handled. It isn’t. Distributors operate in a completely separate part of the royalty ecosystem.

What DistroKid and TuneCore Actually Cover (and What They Don’t)

Distributors collect master recording royalties - the payments made to whoever owns the recording of a song. When Spotify pays for a stream, a portion goes to the owner of the master (typically collected via your distributor), and a separate portion goes to the owner of the composition (the songwriter and publisher, collected via the MLC).

Your distributor never touches the composition side of the royalty equation. They have no relationship with the MLC, no ability to register your works as compositions, and no mechanism to claim mechanical royalties on your behalf. If you wrote your songs, you have a parallel royalty stream that your distributor cannot see and will never pay you.

The Registration Gap Most Independent Artists Don’t Know They Have

Think about what this means practically. Every time your song gets streamed on Spotify, two royalties are generated: a master recording royalty (which your distributor collects) and a mechanical royalty (which sits in the MLC’s system waiting for a registered claimant). If you’ve never registered with the MLC, you’ve been collecting roughly half of what you’re owed on every single stream.

For artists with years of streaming history and no MLC registration, the retroactive recovery potential can be substantial. The clock is running on some of those funds right now. Registering today starts the matching process against your historical unmatched pool - and the sooner you do it, the more of that history you’ll be able to recover before individual distributions expire.

MOGUL

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Frequently Asked Questions

How do I know if I have money in the MLC’s black box pool?

Search the MLC’s public unmatched royalty database at themlc.com using your song titles, ISRCs, or songwriter name. You can also run a free catalog audit through Mogul, which searches multiple collection societies simultaneously and gives you a complete picture of your unclaimed royalties.

Does the 3-year deadline apply to performance royalties too?

The MMA’s specific three-year holding period applies to mechanical royalties at the MLC. PROs like ASCAP and BMI have their own policies for unmatched performance royalties, which vary by organization. SoundExchange maintains a separate pool of unclaimed digital performance royalties with its own rules. The key takeaway: every royalty type has a holding period, and none of them hold indefinitely.

Can I register with the MLC even if I have a publishing administrator?

Yes - in fact, you should. If you have a publishing admin agreement, your administrator may handle MLC registration on your behalf, but you should verify that your works are actually in the system. Some publishing admins are slower to register catalogs than others, and unregistered works won’t match against the unmatched pool regardless of who’s managing your publishing.

What if my song was written with co-writers who have different publishers?

The MLC handles split registrations where different songwriters have different publishers. Each writer (or their publisher) registers their ownership percentage separately. As long as the splits are properly documented and the total adds up to 100%, the matching system can handle it. Conflicts or disputes between co-writers about ownership percentages will need to be resolved before the MLC can process payment.

Is there a cost to register with the MLC?

No - MLC registration is free for songwriters and publishers. The MLC is funded by a fee paid by streaming services, not by rights holders. There is never a charge to register your works or claim unmatched royalties from their pool.

How long does the MLC take to match works and issue payments?

The MLC issues distributions on a regular schedule, typically quarterly. After you register, it may take one to two distribution cycles before your works are fully matched and payment is issued. Retroactive matches against the unmatched pool can take longer, particularly for older works with complex metadata histories.

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