Songwriter Splits: Settle Them Before You Show the Demo
The fight about songwriter splits never happens in the room where the song was written. It happens six months later, after a sync placement comes through, when one writer remembers contributing the bridge melody and another remembers writing the bridge melody. By then everyone has a story about what they did, and none of those stories are written down.
Settle the split the same day you finish the song. In writing. Before the demo leaves any laptop. This is the single piece of advice working songwriters give that almost no new writer follows.
The reason isn’t that splits are complicated. The standard tools take ten minutes. The reason is that the conversation feels awkward when the song is fresh and the room is friendly, and it feels accusatory three months later when someone has started to value their contribution differently. The awkwardness only goes one direction over time.
Key fact: ASCAP and BMI both honor whatever splits the co-writers agree to, in any ratio. The PROs don’t impose a default. If you don’t tell them how to divide a song, they can’t pay it out correctly.
What a Songwriter Split Actually Is
A song has two copyrights: the composition (melody and lyrics) and the sound recording (the master). Songwriter splits divide ownership of the composition between the people who wrote it. They are separate from producer points on the master, separate from publishing administration deals, and separate from any artist royalties on the recording.
The industry’s loose default is 50/50 between music and lyrics when those came from different people, or equal shares among everyone who was in the room contributing. ASCAP’s Splitsville guide walks through this and shows a real split sheet sample from Desmond Child, a useful reference because it shows how a working pro phrases the same agreement you’re trying to write.
The default is a starting point, not a rule. You can write it however you want. What you cannot do is leave it ambiguous and assume the PRO will figure it out. ASCAP and BMI register what you tell them. If your collaborator’s name is on the song and your percentages don’t add to 100, the registration fails.
The Split Sheet — What It Has to Contain
A split sheet is one page. It needs:
- The song title (and any prior working titles)
- Date of the writing session
- Each writer’s full legal name, PRO affiliation (ASCAP, BMI, SESAC, etc.), and IPI/CAE number
- Each writer’s percentage share, totalling 100%
- Each writer’s signature
That’s the entire document. ASCAP’s Splitsville page links to a fillable template. If you’ve never registered with a PRO, do that first. The IPI/CAE number is what the PRO uses to route royalties to you, and you can’t put it on a split sheet you don’t have.
After the song is registered, you can verify your share appears correctly in BMI’s Songview / repertoire database (or ASCAP’s equivalent ACE Repertory). If a co-writer registered the song with the wrong split, this is where you’ll see it. Check within a few weeks of registration, not after the first royalty statement is wrong.
The Conversation — How to Have It Without Killing the Vibe
The reason new writers avoid the split conversation is that it sounds like a negotiation, and negotiations feel hostile in a creative room. The frame that works: treat the split sheet as part of finishing the song, the same way you’d bounce a final mix or label the stems. It’s a paperwork step, not a verdict on whose contribution mattered more.
A version that works: “Before we send this to anyone, let’s just write down the splits. I’m fine with equal shares, does that work for everyone?” Then someone signs, or someone has a different proposal, and you talk about it once. The conversation happens before the song has a value attached to it. After it does, the same conversation is about money, and money conversations between collaborators almost always get worse.
If you’ve never been in this conversation, expect it to take longer the first time. It gets faster after that. The writers I know who do this every session never have splits disputes, because they don’t have splits ambiguity in the first place.
The AI Co-Writer Wrinkle
This is where the question gets genuinely unresolved. If you used Suno or Udio to generate a melody you then rewrote, or a lyric draft you edited, or even just the chord progression you built around, does that contribution have a share?
The short legal answer in the United States as of 2026: no, because the U.S. Copyright Office has held that AI-generated material without sufficient human authorship is not copyrightable, which means there’s no rights-holder to assign a share to. The longer practical answer is more complicated, especially when AI output is the seed for human revision rather than the final material. We covered this in AI music copyright in 2026, and the takeaway for split sheets is narrower: among the human writers in the session, divide 100% of the song. If AI was a tool one of you used, that’s between you and the human collaborators, not a separate share for the platform.
What you should still do: keep the prompt history and the export receipts. If a sync deal ever asks whether the song contains AI-generated material, you want the documentation, not a guess.
Try it free: prototype the arrangement with Studio AI’s music generator so the room hears the song before the writing session ends. The split conversation goes faster when everyone has heard the same demo. Start free →
Settle the Split the Same Day
The writers who never have splits disputes are not the writers with the best lawyers. They’re the writers who do the boring paperwork the day the song is written, before anyone knows what the song is worth, while the conversation is still about the music.
Frequently Asked Questions
What’s the standard split between two songwriters?
The industry’s default is 50/50, typically split between music and lyrics, or equal-share if both writers contributed to both. ASCAP and BMI honor whatever ratio you put on the split sheet, so the standard exists only as a starting point for the conversation. The actual standard is whatever you sign.
Do I need a lawyer for a split sheet?
For a standard split sheet between collaborators with no advances or publishing deals attached, no. ASCAP’s Splitsville template is the working document most writers use. A lawyer becomes relevant when a publishing deal, sync license, or work-for-hire agreement is on the table; those are separate documents from the split sheet itself.
What happens if we don’t agree on splits?
The PRO will not register the song until the percentages total 100% and all writers are accounted for. If the writers can’t agree, the song sits unregistered and earns no royalties through the PRO. Disputes that can’t be resolved in conversation usually end in mediation or litigation; the cheaper version is to have the conversation the day the song is written.
Does AI music count toward a writer’s share?
Under current U.S. Copyright Office guidance, purely AI-generated material isn’t copyrightable, so it can’t hold a share. If a human writer used AI as a tool during the session, the human’s share covers the work; there’s no separate AI share. Document your prompt history and exports in case a sync placement asks later.
How do I check if my split was registered correctly?
Search the song title in BMI Songview or ASCAP’s ACE Repertory after the song has been registered for a few weeks. Both databases show the registered writer shares. If the percentages don’t match what you signed, contact your PRO with the signed split sheet; the document is the source of truth.