Co-Authoring and Royalty Splitting Agreements for Self-Published Authors: A Comprehensive Guide
Co-authoring has become an increasingly common practice in the self-publishing world. Whether for fiction or nonfiction, teaming up with another writer can amplify productivity, blend creative voices, and expand a book's reach. However, with collaboration comes complexity—particularly when it comes to sharing ownership and dividing profits. This is where co-authoring and royalty splitting agreements come into play.
Understanding and formalizing these agreements is crucial. A poorly constructed agreement—or worse, no agreement at all—can lead to disputes, miscommunication, and loss of revenue. This article explains what royalty splitting is, how co-authoring contracts work, what they should contain, and how authors can navigate these agreements professionally, even without a lawyer.
What Is Royalty Splitting?
Royalty splitting refers to the formal arrangement between two or more parties to divide the earnings from a creative work based on predetermined terms. In the context of books, it means each co-author receives a specific percentage of the royalties generated from book sales, licensing, or subsidiary rights like audiobooks or translations.
This concept can also extend to collaborations involving illustrators, editors, or marketers, especially in children's books or multimedia works. But most often, royalty splitting refers to the division between two or more co-authors who have jointly written a book.
How Royalty Splitting Works in Practice
Most self-publishing platforms do not automatically offer native royalty splitting features. One notable exception is Draft2Digital, which offers a "Payment Splitting" feature for authors distributing through their platform. This feature allows authors to set the percentage share for each collaborator, and Draft2Digital automatically distributes the royalties accordingly. You can read more about that feature here: https://www.draft2digital.com/blog/introducing-payment-splitting/.
On platforms like Amazon's Kindle Direct Publishing (KDP), authors must manually divide royalties. Typically, one author receives the full payment into their account and is responsible for paying the co-author their share, often monthly or quarterly. This requires trust and detailed financial tracking.
A better alternative is the Royalty Splitting feature in the ScribeCount Operating System. This allows both authors to see their share of the sales and royalty data alongside all of their other publishing efforts. The analytic features will take that information and include it in all of their reports.
The Role of the Co-Authoring Agreement
A co-authoring agreement is a legal contract that outlines the terms of the collaboration. It establishes ownership rights, revenue sharing, division of responsibilities, and procedures for dispute resolution or dissolution of the partnership.
These agreements can be formalized through:
A general partnership agreement
A joint venture agreement
A work-for-hire contract (less common in true co-authoring)
An LLC operating agreement (if authors form an LLC together)
Without such an agreement, copyright law assumes that co-authors jointly own the copyright and must share all royalties equally—even if one person wrote 90 percent of the manuscript. This default rule can be problematic and almost never reflects the intentions or labor balance in modern co-authoring projects.
Types of Co-Authoring and Royalty Splitting Arrangements
Equal Partnership
In an equal partnership, authors contribute relatively equal time and creative input and split royalties evenly (50/50 for two authors). This model works well when both parties write alternating chapters, co-develop the story, or revise the manuscript together.
Proportional Contribution
When one author contributes significantly more content, time, or intellectual property, the royalty split may reflect those contributions—such as 70/30 or 60/40. This model is especially common when one author is more experienced, brings an established audience, or acts as the project manager.
Work-for-Hire
Occasionally, a lead author hires a co-writer or ghostwriter on a flat fee or royalty-share basis. In these cases, the hired party may receive a one-time payment, a royalty percentage, or both. Unless otherwise specified, they do not retain copyright ownership.
Limited Duration Royalty Share
This model grants the co-author a share of royalties for a fixed number of years. Afterward, the primary author may regain full control. This model is rare but sometimes used when one partner offers short-term services, such as developmental editing.
Joint Ownership via LLC
Some co-authors create a limited liability company (LLC) to publish their work. The LLC then owns the copyright, and members (the authors) receive profits based on the LLC's operating agreement. This structure offers liability protection and is ideal for long-term partnerships.
Essential Clauses in a Co-Authoring Agreement
1. Ownership and Copyright
The agreement should specify that the co-authors are joint copyright holders or define ownership percentages. The U.S. Copyright Office generally assumes joint copyright unless stated otherwise.
2. Scope of the Collaboration
Define the project (e.g., one book, a series, or all works under a pen name). If you are writing a single novel, the scope should say so clearly.
3. Division of Responsibilities
Clarify who does what—writing, editing, marketing, publishing, platform management, or financial tracking. This prevents misunderstandings down the road.
4. Revenue Splitting
Specify the royalty split in percentages. This clause should include sales income, licensing deals, audiobook adaptations, translations, film/TV rights, and other revenue streams.
5. Expenses
State how publishing and marketing expenses will be handled. For example, will both authors contribute equally to cover editing, cover design, and ads?
6. Accounting and Reporting
Determine how often the managing author will report earnings and send payments. Monthly or quarterly are common schedules.
7. Pen Names and Branding
If publishing under a shared pseudonym, state who controls the name and what happens if one party exits the agreement.
8. Dispute Resolution
Outline a process for resolving disagreements—often through mediation or arbitration before litigation.
9. Termination and Exit Plan
This section explains what happens if one party wants to leave the project. Can they republish the book solo? Do they retain partial royalties? Are they required to sell or transfer their share?
Example Clause: Termination "If one party wishes to exit the agreement, the remaining author shall have the right of first refusal to purchase the exiting party's interest, valued at 12 months of average net royalties. If both parties agree to dissolve the collaboration, the book may be unpublished or sold to a third party."
How to Create a Co-Authoring Agreement Without a Lawyer
Though legal assistance is always preferable, many indie authors create their own agreements using templates or online tools. Here are a few ways to create your own contract:
Use Template Services
Websites like LegalZoom or Rocket Lawyer offer templates for partnership agreements and contracts. Tailor these documents to fit the co-authoring context.
AI Drafts.
AI can produce a Co-Authoring agreement from a detailed prompt. Using this article as a guide can help you construct one, however, it's important to understand that AI can make mistakes and is not a substitute for an experienced IP lawyer. Utilizing AI to draft your contract can be a time saver, but it's highly recommended that you run the final draft across the desk of legal counsel before signing.
DIY with Plain Language
Authors can also draft a simple agreement in a Word document or Google Doc. As long as the terms are clear and both parties sign, the agreement is legally binding in most jurisdictions.
Key Tips:
Date the document
Include both parties' legal names and addresses
Avoid vague language
Add electronic signatures via DocuSign or other tools for authenticity
Signing Tools
Free tools such as HelloSign or SignWell let you upload and sign documents electronically with a time-stamped digital signature.
What Authors Should Watch Out For
Vague Ownership Language
Avoid terms like "we'll figure it out later" or "we'll split everything fairly." These phrases are open to interpretation and unenforceable.
One-Sided Control
Be wary of agreements that give one author full control over publishing, financials, or marketing decisions without transparency.
Lack of Exit Plan
If the contract doesn't define how to exit the relationship, disputes may arise. An exit clause is one of the most crucial parts of the agreement.
No Royalty Tracking
If one author receives all payments and is responsible for distribution, insist on clear financial tracking—ideally with monthly reports and screenshots of dashboards.
How to Exit a Co-Authoring Agreement Without a Lawyer
Exiting a collaboration can be sensitive, especially if relationships have soured. However, it is possible to dissolve a co-authoring agreement without hiring legal counsel.
Step 1: Review the Original Agreement
Begin by reading the contract carefully. Look for any termination clauses or buyout provisions. Note deadlines, notification requirements, and rights reversion terms.
Step 2: Communicate in Writing
Send a formal written notice to your co-author expressing your intent to exit the agreement. Refer to the relevant termination clause. Keep all communications documented.
Step 3: Negotiate a Buyout or Division
If one author is continuing the project, negotiate either a buyout of the exiting party's interest or a clear division of the existing work's royalties going forward.
Step 4: Update Platform Accounts
Whichever author retains the book must update the publishing platform accounts to reflect the new ownership or management arrangement. This may include updating payment details, account access, and contact information.
Step 5: Document the Resolution
Once an exit agreement is reached, document it in writing and have both parties sign. This prevents future disputes about what was agreed upon when the collaboration ended.
ScribeCount Author OS:
Royalty Verification for Co-Authors
The "No Royalty Tracking" warning above — the risk of one author receiving all payments without transparent reporting to the other — is directly addressed by the ScribeCount Author OS. The Royalty Split feature combined with the Sales Dashboard provides platform-sourced, timestamped royalty data for every connected account. A co-authoring agreement's accounting clause can specify that the managing author will share ScribeCount reports with the partner author on a defined schedule, providing verified income data from source-connected platform reports rather than manually compiled spreadsheets. This creates an accountable, verifiable financial reporting system for co-author partnerships — one that both parties can trust because the data comes directly from the publishing platforms.
Conclusion
Co-authoring is one of the most rewarding forms of collaboration in indie publishing — and one of the most complicated if managed poorly. The difference between a successful co-authoring partnership and a contentious one often comes down to a single document: the co-authoring agreement.
Write it before you start writing the book. Cover every scenario you can think of, especially the uncomfortable ones — what happens if one author stops contributing, what happens if the relationship sours, and what happens when the book ends. The conversations those questions require are far easier to have before the book is published than after.
Get the agreement signed. Then write the book.
- Randall
