How to Fill Out a Split Sheet: 2026 Songwriter Guide

Last Updated: July 2026

A split sheet is a one-page written agreement that records exactly what percentage of a song's composition each contributor owns. To fill one out correctly, list the song title, the date, every writer's legal name, their publisher and PRO, their IPI/CAE number, their ownership percentage, and their signature — and make sure the percentages total exactly 100%. Sign it in the room, on the day the song is written, before anyone leaves. That single sheet of paper is what your PRO, your publishing administrator, and The MLC will rely on when they decide who gets paid.

Here's why the timing matters more than the paperwork: The MLC flags any song where submitted ownership shares exceed 100% as an overclaim, and it freezes payouts on that work until the conflicting parties resolve it themselves. No split sheet means no clean registration. No clean registration means your money sits in a holding account instead of your bank account. The MLC reported an average match rate of nearly 92% and more than 53 million works in its public database as of 2026 (The MLC) — the songs that fall into the unmatched 8% are overwhelmingly the ones with missing, contradictory, or never-filed ownership data.

This guide walks through what belongs on a split sheet, the standard percentage conventions producers and topliners actually use, where to file the splits once they're agreed, and how to fix a song you already released without one.

What is a split sheet, and is it legally binding?

A split sheet is a written record of songwriting ownership signed by every contributor to a composition. When it's signed and dated by all parties, it functions as a binding contract in most U.S. jurisdictions — it's an agreement supported by mutual consideration (each writer giving up claim to a portion of the whole). Digital signatures are equally valid; a photo of a handwritten sheet with everyone's signature works too.

What a split sheet is not is a registration. It's the evidence you use to register. You still have to submit those splits to The MLC, your PRO, and your publishing administrator separately. A split sheet sitting in your camera roll earns you nothing.

The default legal rule in the absence of a split sheet is worse than most writers assume. Under U.S. copyright law, co-authors of a joint work are presumed to own equal shares regardless of contribution. If four people were in the room and one of them hummed a single melody line, the presumption is 25% each. A split sheet is how you override that presumption with what everyone actually agreed to.

What does a split sheet cover — composition or master?

A split sheet covers the composition (the song: melody, lyrics, chord structure, arrangement). It does not automatically cover the master recording (the specific recorded performance). Those are two separate copyrights with two separate revenue streams, and conflating them is the single most common mistake indie collaborators make.

If your collaboration also involves shared ownership of the recording — a producer who tracked and mixed it, a featured vocalist who wants points — you need a separate master ownership agreement or a split sheet with a clearly labeled second section. RoyaltyCoPilot.ai regularly finds indie catalogs where the composition splits were filed cleanly at The MLC but nobody ever filed a SoundExchange letter of direction for the producer, leaving master-side digital performance money sitting unclaimed for years.

What are the standard producer and songwriter split percentages in 2026?

There is no statute setting these numbers. They're conventions, and they vary sharply by genre and by how much of the actual song the producer wrote. Here's what the market actually looks like:

Two practical notes. First, a leased beat is not the same as a co-write. If you bought a non-exclusive lease off a beat marketplace, read the license — many grant you the right to release but assign the producer a fixed publishing percentage, and some assign zero. The license terms control, not a split sheet you write afterward. Second, "beat made 50%" is a hip-hop convention, not a universal one. Applying it to a folk record where the producer added a drum loop will get you laughed out of the room.

What information must be on a split sheet?

Every split sheet needs these eight fields. Missing any one of them creates a registration problem downstream.

1. Song title — the exact final title, including any parenthetical (feat.) credit, spelled identically to how it will appear on the release.
2. Date of the writing session — not the release date. This establishes when the agreement was made.
3. Each writer's full legal name — the name on their PRO account, not their artist name. "Mike Jones," not "@808mikey."
4. Each writer's PRO — ASCAP, BMI, SESAC, GMR, or a foreign society. If someone isn't affiliated yet, write "unaffiliated" and follow up.
5. Each writer's IPI/CAE number — the nine- to eleven-digit identifier your PRO assigned you. This is the field most often left blank and most often responsible for mismatched registrations.
6. Each writer's publisher or administrator — Songtrust, Sentric, a self-owned publishing entity, or "self-published, no admin."
7. Ownership percentage per writer — must total exactly 100.00%. If you're splitting three ways, use 33.34 / 33.33 / 33.33.
8. Signature and contact info for every party — email and phone at minimum. You will need to reach these people in three years when a sync opportunity comes in.

Two optional fields worth adding: a role description for each writer ("music and production," "lyrics and topline") which helps resolve future disputes, and an ISWC field left blank to be filled in after registration.

How do you actually fill out and file a split sheet? A step-by-step process

1. Have the conversation before the session ends. The awkward five minutes at the end of a session is dramatically cheaper than a frozen royalty account. If a collaborator resists documenting splits, that is information about the collaboration.
2. Agree on percentages out loud, then write them down. Verbal agreements evaporate. Ambiguity in year one becomes a dispute in year three when the song lands a placement.
3. Confirm every writer's IPI and PRO on the spot. Have people pull it up on their phone. Guessing at this field is how registrations get mismatched.
4. Get signatures the same day. Digital is fine — a shared PDF, an e-signature tool, or a photo of the signed page in a group thread.
5. Distribute a copy to everyone immediately. Every writer keeps their own copy. Don't be the only person holding the document.
6. Register the work with The MLC using those exact splits, ideally before the release date. Every co-writer (or their administrator) registers their own share.
7. Register with your PRO using the same splits and the same writer name spellings. Mismatched name spellings between your PRO and The MLC is a leading cause of unmatched royalties.
8. Verify the registration matched. Search the work in The MLC's public database after 30–60 days and confirm the shares total 100% with no conflicts flagged. This verification step is what most indie writers skip.

Step 8 is where RoyaltyCoPilot.ai does the most work for indie catalogs — reconciling what a writer believes they registered against what the databases actually show, song by song across an entire catalog.

Where do the splits get filed after everyone signs?

Signing the sheet is step one of four. Here's who needs the data and what happens if they don't get it.

The MLC transferred in $424,384,787 in accrued historical black box mechanical royalties from digital services in 2021 — a figure that was later revised to roughly $397 million after the Copyright Royalty Board finalized the applicable rates (The MLC). Most of that money existed because ownership data didn't exist. That's the entire mechanism: no clean splits, no match, no payment.

What happens if two writers claim overlapping shares?

The MLC calls this an overclaim — the condition where the total shares submitted by all members for a single work exceed 100%. When it happens, The MLC flags the work as conflicted and holds the disputed portion of the royalties until the parties resolve it between themselves. The MLC does not adjudicate who is right. It waits.

The same logic applies at the PRO level. If one writer registers a song as 100% theirs and a co-writer registers a 50% claim, the PRO will typically freeze distribution on the contested share. One 2026 industry analysis attributed roughly 70% of collaborator disagreements to unclear or undocumented splits (That Pitch, 2026) — which tracks with the fact that the underlying fix is almost always a document nobody bothered to create.

Resolving a conflict requires the parties to agree, in writing, on corrected shares and then each amend their own registration. A signed, dated split sheet from the original session is the fastest path to that agreement — and the reason to create one even when everyone is currently getting along.

Can you file a split sheet after a song is already released?

Yes, and you should. There's no deadline that permanently forecloses correcting your registrations, and mechanical royalties accrued during the unmatched period can generally still be claimed once the work is properly registered and matched.

The practical steps for a retroactive fix:

1. Get the split sheet signed now, dated today, with a line noting the original writing session date and the release date.
2. Pull the current registration state for the work at The MLC and at each writer's PRO — you need to know what's actually on file before you amend anything.
3. Have each party correct their own registration to the agreed shares. One writer cannot amend another writer's share.
4. Check for accrued unmatched royalties attributable to the work during the period it was unregistered.
5. Confirm the ISRC-to-ISWC linkage — if the recording isn't linked to the composition, the splits can be perfect and the money still won't route.

Timing note for 2026: The MLC has stated that as of the completion of its January 2026 royalty distribution it was holding under $7 million in remaining unmatched and unclaimed royalties from January 2021 usage, ahead of its first market share distribution scheduled for early 2027 (The MLC). Once a market share distribution occurs, unclaimed money for that period is distributed to rightsholders by market share — meaning it goes disproportionately to major publishers, not to the indie writer who never registered. Fixing old registrations has a real clock on it.

Frequently asked questions about split sheets

Do I need a split sheet if I wrote the song alone? No — a solo writer owns 100% by default. You still need to register the work with The MLC and your PRO. Self-written doesn't mean self-registered, and a song nobody registered generates unmatched royalties whether one person wrote it or five did.

Does a producer automatically get publishing if they made the beat? No. Nothing is automatic. Publishing share is negotiated, and the market convention ranges from 0% (engineer-only contributions) to 50% (full beat in hip-hop). If you're using a leased or purchased beat, the license terms govern — read what you bought before you write a split sheet that contradicts it.

What percentage should a featured artist get? A featured vocalist who only performed someone else's written part gets 0% of the composition — they should be compensated on the master side or with a flat fee. A featured artist who wrote their own verse owns the writing contribution of that verse, commonly proportional to its share of the total song.

Can a split sheet cover master recording ownership too? Only if it explicitly says so with a separate, clearly labeled section. A standard split sheet covers composition only. Master ownership, producer points, and SoundExchange letters of direction are separate documents and separate filings.

What if a co-writer won't sign? Don't release the song. Releasing a track with contested ownership exposes you to legal claims and can result in your PRO or distributor freezing royalties on the entire work — including the portion nobody disputes. Resolve it first, or replace the contribution.

Do split sheets need to be notarized? No. Signatures from all parties are sufficient. Notarization adds evidentiary weight in a litigation scenario but is not required for the document to be enforceable or for any registration to be accepted.

What's the difference between a split sheet and a co-publishing agreement? A split sheet records who owns what percentage of the song. A co-publishing agreement is a deal in which a writer assigns part of their publishing share to a publisher in exchange for services or an advance. The split sheet comes first and defines the asset; the co-pub deal is a transaction on top of it.

How do I know if my splits actually registered correctly? Search the work in The MLC's public database and check that shares total 100% with no conflict flag, then check your PRO's repertory search for matching writer names and shares. Doing this manually across a large catalog is tedious, which is exactly the reconciliation RoyaltyCoPilot.ai automates — comparing what you believe you own against what the collecting societies actually have on file.

The one-sentence version

Write down the splits the day you write the song, put every writer's legal name, PRO, and IPI on it, make the numbers total 100%, and then actually file those splits with The MLC and your PRO — because a signed split sheet nobody registered pays exactly as much as no split sheet at all.

If you've got a back catalog of collaborations that were never properly documented or registered, that's a solvable problem — a full catalog audit at RoyaltyCoPilot.ai will show you which works are unregistered, which have conflicting shares, and where money is sitting unmatched before the 2027 market share distribution reshuffles it.

Sources: The MLC — Historical Unmatched Royalties, The MLC — Market Share Distributions, Songtrust — Producer Splits, Ari's Take — Producer and Songwriter Splits, Disc Makers — Should a Producer Get a Publishing Split, That Pitch — Royalty Splits Guide 2026.