Split sheets, from a sync rep's desk: why the missing paperwork kills your placement, not the song

I get a version of this question every week: “The song is fully mine, do I really need a split sheet?”

The honest answer, from the desk of a sync rep who has to decide whether to spend a pitch slot on you: yes. And if there’s even one other person who was in the room, on the session, or on the beat — even if you paid them — then it’s not just yes, it’s before the song leaves your DAW.

This isn’t a lecture about doing your homework. It’s a description of what actually happens when a supervisor emails me at 4:47pm on a Wednesday asking to clear a song for a trailer by Friday. If I can’t send the clearance department a clean split sheet in the reply, we’re not making that deadline. If we’re not making that deadline, they use somebody else’s song. That is the entire economic argument for filling out a one-page document at the end of a session.

What a split sheet actually is (and what it isn’t)

A split sheet is a signed, one-page document that records who wrote what percentage of a song’s composition — the underlying musical work, not the recording.

Read that last part twice. A split sheet documents publishing splits. Master-recording splits are usually a separate agreement, or a clearly separate section of the same document, because the master and the composition are two different copyrights that get licensed under two different signatures. Blurring them is one of the most common ways a “one-stop” song stops being one-stop the minute a supervisor asks a real question.

A split sheet is also not:

A contract to work together. It’s a record of who owns what after the work is done.
A publishing deal. It doesn’t assign anything to anyone.
A substitute for registering the song with your PRO and The MLC. It’s the source document you register from.
A guarantee. It’s evidence. Its whole job is to be the boring, dated, signed piece of paper you point at when someone remembers the session differently three years later.

ASCAP’s own guidance is direct about this: agree on the splits at the point of creation, ideally in writing, and get them to exactly 100% before you register the song (ASCAP Splitsville). “At the point of creation” is not idiom. It means before anyone leaves the room.

Why supervisors care so much about a piece of paper

Because they’re not licensing your song. They’re licensing your song and the promise that nobody else is going to sue their client for using it.

When a supervisor sends a song to a network’s or a brand’s clearance department, that department’s job is not to like the song. Their job is to satisfy themselves that:

Every writer on the composition is identified.
Every one of those writers, or a single entity authorized to act for them, has signed off.
Every writer’s PRO can be paid the performance royalties the use will generate.
If there’s a sample, it’s licensed and its ownership is documented too.

The split sheet is the first document that answers 1 through 3. If you don’t have one, or the one you have is missing signatures, IPI numbers, or PRO affiliations, the clearance department kicks the song back. Doesn’t matter how good it is. Doesn’t matter how the supervisor felt about it. The supervisor now has a choice: chase your paperwork on their own time, or use one of the ten other songs from reps who sent clean paperwork.

They pick the second option every single time. Not out of laziness — out of budget. Their production has a deadline and the clearance department has a queue.

What a valid split sheet must contain

There is no legally-mandated federal template for this in the US. But every clearance department I’ve dealt with looks for the same seven fields per writer, plus a header. Miss any of them and the document gets rejected in favor of one that has them.

If you want to skip straight to filling one out, the free split sheet generator builds a clean, signable PDF with every field a supervisor’s clearance department checks for. It runs entirely in your browser; nothing about your song leaves the page.

Per song (the header):

The final song title, plus any working titles or alternate titles it went by.
The date the song was completed and the date the sheet was signed. Those can be different; both matter.
The recording artist name if the version is release-tied. Sync often gets pitched instrumental or alternate versions, so the specific version matters.
The ISRC of the recording (if it exists) and the ISWC of the composition (if you have one).

Per writer, on the sheet:

Full legal name. Not a stage name. Not a producer alias. The name that matches the writer’s PRO account. Every clearance department I know does a name-match check against ASCAP or BMI’s public repertoire.
PRO affiliation. ASCAP, BMI, SESAC, GMR in the US, or the writer’s home-country society (PRS, SOCAN, GEMA, etc.) if they’re outside the US.
IPI/CAE number. This is the unique global identifier a PRO issues you when you affiliate. It looks like a 9-to-11-digit number. It’s how PROs internationally reconcile a writer across societies. If a writer doesn’t have one, they need to affiliate with a PRO before the song is released; there is no workaround.
Publisher of record. Either the writer’s publishing entity (with its own name and IPI), or the literal word “self-published” plus the same writer’s IPI acting in a publishing capacity. If the writer has an admin-only publishing deal, the admin is not the publisher of record — the writer’s own publishing entity still is. This is where a lot of intake forms get filled out wrong.
Contact information. Email at minimum. Address if you can. Clearance departments do reach out and if a co-writer is a Gmail address from 2017 that stopped forwarding, the deal is stuck.
Writer’s-share percentage. The writer’s share of the composition. All writer’s-share percentages on the sheet must add to exactly 100%.
Publisher’s-share percentage. Every writer’s publisher (or their self-publishing entity) gets a percentage on the publisher side. All publisher’s-share percentages on the sheet must also add to exactly 100%.

Then everyone signs. Digital signatures are fine — I take them daily — as long as every party has agreed to sign electronically and the audit trail exists (DocuSign, Adobe Sign, or a signed PDF attached to a same-thread email are all fine). Wet signatures are stronger evidence in a real dispute; they’re overkill for the day-to-day.

The two-column math that trips almost everyone up

The writer’s-share and publisher’s-share columns are two separate 100% totals. They are not two halves of one 100% pie. They describe two separate but parallel ownership stacks that both exist for every song.

Think of it as two ledgers:

The writer’s-share ledger describes who wrote the song.
The publisher’s-share ledger describes who represents (or self-represents) each of those writers on the publishing side.

If you and one co-writer wrote a song 50/50 and you’re both self-published, the sheet reads: 50% writer / 50% writer, and 50% publisher (you) / 50% publisher (them). Both columns total 100%. Both of you also collect 50% of your PRO’s writer’s-share payments on that song, and 50% of your PRO’s publisher’s-share payments on the composition.

If you wrote 60% and your co-writer wrote 40%, and your co-writer signed with a publisher and you’re still self-published, the sheet reads: 60% writer (you) / 40% writer (them), and 60% publisher (you, self) / 40% publisher (their publisher). Same math.

Where people get this wrong is by assuming the writer’s share and publisher’s share are 50/50 halves of one whole, and writing 30/20 in the writer column and 30/20 in the publisher column. That doesn’t sum to 100. The PRO will freeze the registration, or worse, the registration will pass and you’ll spend eighteen months fighting to correct it while payments sit in a suspense account.

A useful sanity check ASCAP itself flags in its Member Access registration flow: PROs internally treat every work as a 50/50 split between the writer pool and the publisher pool. Your split sheet should describe the raw ownership percentages (both columns totaling 100%), and the PRO’s system converts those to the internal 50% writer / 50% publisher accounting on its own (ASCAP registration help). You don’t need to do the conversion yourself. You need to describe the truth of what’s owned.

The producer question — the one you can’t skip

I probably shouldn’t say “producer” without a footnote because in 2026 the word covers everyone from “sent me a two-bar loop” to “wrote the entire top-line and paid for the mix.” But the specific question you need to answer, on paper, before the song is released, is this:

Did the producer contribute to the composition, the master, or both — and by what percentage of each?

Three common scenarios in the material I see:

Beat purchased through a lease. Master rights are shared or licensed per the beat lease. Composition rights are almost always shared too, because that beat is part of the underlying song. Most lease agreements from major beat marketplaces give the producer some composition percentage — read the lease, it’s stated there, and register accordingly.
Producer paid a flat fee for the session. A flat fee doesn’t extinguish authorship. If the producer contributed original melody, harmony, or arrangement, they contributed to the composition and they need a percentage on the split sheet even if you paid them for their time. You can separately reduce or waive their share through a work-for-hire agreement, but the work-for-hire needs to be signed and needs to say so explicitly. Waving cash at a producer doesn’t clear the paperwork on its own.
Producer on points. Common in mainstream commercial writing rooms. If a producer takes production points (a percentage of master royalties) and no composition share, that’s a master-side agreement — but it still belongs on your paperwork, in a separate section, so a supervisor’s clearance department can see the full ownership picture in one place.

If you’re not sure which one applies to a session you already did, the most useful thing you can do is email the producer with a proposed split sheet attached and ask them to confirm in writing. An email chain that ends with “yes agreed” is enforceable enough for clearance purposes. Silence is not.

The seven things I check on every intake

Every time an artist applies to Verilux, this is the actual list I run against the material they submit. It’s the same list a clearance department will run against your song six months from now:

Is a split sheet attached at all? No sheet, no shortlist. Even for a solo write.
Do the writer’s-share and publisher’s-share columns each total exactly 100%? Off-by-one percentages are usually a rounding error, but they still fail clearance until fixed.
Does every writer have an IPI number listed? Missing IPI means the co-writer hasn’t affiliated with a PRO yet, which means their share can’t be collected on. That’s a fixable problem, but I want it fixed before I pitch, not during a clearance window.
Do the writer names on the sheet match the writer names in the PRO’s public repertoire? ASCAP and BMI both have public search tools. If your co-writer is “Alex Kim” on the sheet and “A. J. Kim” at ASCAP, the clearance department will flag it. Reconcile now.
Is every sample declared, with the sampled owner’s name, sampled work title, and the percentage granted to that owner? An undeclared sample is the single most common way a “one-stop” song turns out not to be. If your song contains any pre-existing recording other than sounds you generated yourself, it’s a sample.
Is the producer’s contribution documented — as a composition share, a master-side share, or both, or a documented work-for-hire? No unresolved producer standing.
Are all signatures present, all dates filled in, and does the version on the sheet match the version you’re pitching? If the sheet says “Original Studio Version” and you’re pitching an instrumental, either the instrumental is covered explicitly (add a line to the sheet, or a per-song rider) or it isn’t and needs a fresh document.

If your song passes all seven, it’s the kind of song I can put on a supervisor’s desk and answer their clearance questions in one email. If your song passes six of them, it’s the kind of song I’d love to pitch and won’t. The reason is the same in both cases: my credibility with that supervisor is more expensive than any one placement.

Do it during the session, not after

The one habit that will save you more sync money than any other, over the arc of your career, is this: before anybody leaves the session, get the split sheet signed. Not the studio invoice, not the credits list, not the “we’ll figure it out.” A written sheet, signed by every writer, with the seven fields filled in.

If you don’t have a template, use the ones the PROs themselves publish — ASCAP’s five-writer split sheet PDF is a fine starting point (ASCAP song split sheet). Print pads of them, keep them in your studio, keep a PDF version on your phone. Every producer I respect has one within arm’s reach of the mixing chair. It’s not because they’re paranoid. It’s because they’ve been on the wrong end of a “we agreed to 50/50” conversation exactly once.

After the sheet is signed

The sheet by itself doesn’t pay you. Registration does.

Once every party has signed, each writer registers the song from their own PRO account with the exact writer’s-share percentage on the sheet. If any of the writers, or any of the publishers of record, are ASCAP members, they register through ASCAP’s Member Access. BMI members register through BMI’s portal. SESAC and GMR handle it through their own systems. Each PRO cross-references registrations across societies to reconcile — which is why the percentages on every writer’s registration have to match the sheet exactly.

Then the composition gets registered with The MLC for US mechanical royalties (interactive streaming, downloads, physical), matching the same splits. And your distributor’s metadata gets the same splits so streaming platforms report accurately.

Same numbers everywhere. That’s the whole trick.

The final thing to hear

The paperwork isn’t a chore that a busy artist can skip and catch up on later. It’s the operational layer that decides whether your good song ever gets to be a licensed good song. Reps and supervisors are not gatekeepers who like documents for their own sake — we’re operators who cannot license a song we can’t clear.

If the discipline of doing the sheet at the point of creation feels excessive right now, it’s because you haven’t yet been the person answering a clearance email at 5pm on a Friday. Once you have, you don’t skip it again.