This article is part of our Complete Guide to Royalty Management.
A single title can have half a dozen people who deserve a cut of its royalties. Two co-authors split the text. An illustrator gets a percentage on the hardcover edition with full-color plates but nothing on the ebook. A translator earns a royalty on the French edition only. And the publisher keeps whatever is left over. If you are managing these splits manually, every new stakeholder multiplies the complexity of your royalty process.
This article walks through real-world scenarios for splitting royalties between multiple rights holders and explains how format-specific contracts make it all work without spreadsheet gymnastics.
Co-author splits
The simplest multi-party scenario is two authors who wrote a book together. The most common arrangement is a 50/50 split, but plenty of contracts specify different percentages based on each author’s contribution.
Let’s say Author A and Author B co-wrote a title. Their publishing agreement gives each a 10% royalty on net receipts. During a royalty run, each sales line for that ISBN is processed individually. The system finds both contracts, applies the matching rule for each, and allocates 10% to Author A and 10% to Author B. The publisher keeps the remaining 80%.
Now imagine the split is uneven. Author A wrote 70% of the book and gets 12% of net receipts. Author B contributed 30% and gets 5%. The math still works the same way. Each rights holder has their own contract with their own rate, and the publisher receives the remainder.
The key point: each rights holder’s contract is independent. There is no requirement that author royalty rates add up to a specific number. Each contract simply defines what that individual rights holder earns.
Illustrator rates on specific formats
Picture books and illustrated nonfiction often involve an illustrator who earns royalties on print editions but not on text-only formats like ebooks or audiobooks. This is where format-specific contracts become essential.
Because contracts in royalty management software are linked to specific products (ISBNs), you can create different contracts for each format. The illustrator gets a contract on the hardcover ISBN at, say, 5% of net receipts. The paperback ISBN might have a separate contract at 3%. The ebook ISBN has no illustrator contract at all.
During a royalty run, only the contracts attached to the specific ISBN being processed are considered. A sale of the ebook triggers the author’s contract but not the illustrator’s, because no illustrator contract exists for that product. This keeps the allocations clean without any manual filtering.
You can also use contract rules with conditions to handle more nuanced scenarios. If the illustrator’s rate changes based on the sales channel or discount rate, you add rules with the appropriate conditions. The first matching rule determines the royalty, so you place the most specific rules at the top and a general fallback rule at the bottom.
Translator royalties on translated editions
Translated editions introduce another layer. A translator typically earns a percentage on sales of their translated edition only, not on the original-language version. Since each translated edition has its own ISBN, this is straightforward to set up.
Create a contract linking the translator to the translated edition’s ISBN. Set the royalty rate (commonly 1% to 3% of net receipts, though this varies widely). The translator’s contract only applies to sales of that specific product, so sales of the English original are unaffected.
If you publish translations into multiple languages, each translator gets their own contract on their respective ISBN. The original author may also have contracts on every edition, including translations, at their standard rate. All of these contracts coexist without conflict because each is scoped to a specific product.
This approach works well alongside tiered royalties too. If the translator’s rate increases after a sales threshold, you add a second rule to their contract with a “units sold greater than” condition and a higher rate. The system checks rules in priority order and applies the first match.
What happens when splits do not add up to 100%
This is one of the most common questions publishers ask. If Author A gets 10%, Author B gets 10%, and an illustrator gets 5%, that totals 25%. Where does the other 75% go?
The publisher keeps the remainder. In royalty management, the publishing company exists as a “publisher rights holder.” After all other rights holders have been allocated their share from a sales line, the remaining net royalty amount flows to the publisher automatically. You do not need to create a separate contract for this. The publisher’s share is simply what is left over.
This means your rights holder contracts never need to sum to 100%. In fact, they rarely will. The publisher’s margin is built into the gap between what rights holders earn and what was received from distributors.
If you want to download our free guide for a deeper look at how publisher income flows through the royalty process, it covers this topic in detail.
Format-specific rates in practice
Let’s put it all together with a realistic example. Imagine a title called The Coral Reef with four formats:
- Hardcover (ISBN 1): Author at 10% net, Illustrator at 5% net
- Paperback (ISBN 2): Author at 8% net, Illustrator at 3% net
- Ebook (ISBN 3): Author at 25% net, no illustrator contract
- French translation (ISBN 4): Author at 10% net, Translator at 2% net
Each format is a separate product with its own set of contracts. When a royalty run processes a hardcover sale, it finds two contracts (author and illustrator) and allocates accordingly. When it processes a French ebook sale (if that has its own ISBN), it finds whatever contracts are attached to that specific product.
This per-product approach means you never have to build complex conditional logic to determine which rights holders apply to which format. The structure handles it naturally.
How Royalties HQ handles this
Royalties HQ is built around a contract-rule-condition-action structure that makes multi-party royalty splits straightforward to set up and maintain.
Each rights holder gets their own contract linked to the relevant product ISBNs. Within each contract, you create rules that define the royalty rate and any conditions (such as sales channel, discount rate, or units sold thresholds). Rules are checked in priority order, and only the first matching rule applies per sales line.
Shared contract templates save time when multiple rights holders use the same terms. Create a “Standard Author 10% Net” template once, then link it to any rights holder and product combination. If you need to customize terms for a specific situation, clone the template and edit the copy without affecting other rights holders.
The publisher rights holder automatically receives whatever royalties remain after all other allocations. There is no manual calculation required and no risk of the numbers not adding up.
For publishers managing catalogs with dozens of co-authored, illustrated, or translated titles, this structure eliminates the manual work and error risk that comes with tracking splits in spreadsheets. Every allocation is auditable, every contract is versioned, and every rights holder gets exactly what their agreement specifies.