Author Royalty Calculator
Understanding your potential royalty income before you publish is essential for setting realistic expectations and making informed decisions about which publishing path to take. This author royalty calculator lets you model earnings from traditional publishing or self-publishing by entering your book's list price, the royalty rate, whether the royalty is calculated on the list price or net receipts, and your estimated unit sales. You can add a second format - for example, e-book alongside print - to see combined earnings across formats. The calculator outputs total royalty income and your per-unit royalty so you can compare different pricing, format, and channel strategies side by side before committing to a publishing deal or setting your retail price.
Royalty calculation formula
Royalty per unit (list basis) = List Price x Royalty Rate / 100
Royalty per unit (net basis) = List Price x (1 - Retailer Discount/100) x Royalty Rate / 100
Gross Royalty = Royalty per Unit x Units Sold
Earnings after Advance Recoup = Gross Royalty - Advance (if positive)
Break-even Units = Advance / Royalty per Unit
Frequently asked questions
What royalty rate do traditional publishers pay?
Traditional publishers typically pay hardcover royalties of 10-15% of the list price (often 10% on the first 5,000 copies, 12.5% on the next 5,000, 15% thereafter). Paperback royalties are usually 7-8% of list price. E-book royalties from traditional publishers are typically 25% of the publisher's net receipts, which is lower than self-publishing platforms offer.
What royalty rate does Amazon KDP pay?
Amazon Kindle Direct Publishing (KDP) pays 70% royalties on e-books priced between $2.99 and $9.99 in supported markets, and 35% on e-books outside that price range or in certain territories. For KDP Select (exclusive) enrollees, the 70% rate applies in more countries. Print-on-demand paperbacks through KDP pay approximately 60% of the list price minus the printing cost.
What is the difference between net royalties and gross royalties?
Gross royalties are calculated as a percentage of the book's list (cover) price. Net royalties are calculated as a percentage of the publisher's net receipts after retailer discounts - typically 40-55% off list price for trade. For example, a 25% net royalty on a $20 book where the retailer takes 50% nets the author $2.50 per copy, not $5.00.
How many books does the average author sell?
Sales vary enormously. The average self-published book sells fewer than 200 copies in its lifetime. Midlist traditionally published novels sell 2,000-10,000 copies. Bestsellers sell 100,000+ copies. First-year sales are the most important: most books sell 80% of their lifetime units in the first 12-18 months after release.
Do authors owe taxes on royalty income?
Yes. Royalty income is ordinary income and is subject to federal income tax. If you are self-employed as an author, royalty income is also subject to self-employment tax (15.3% on net earnings). Publishers and platforms issue a Form 1099-MISC or 1099-NEC when annual payments exceed $600. You can deduct legitimate writing business expenses against royalty income.
Sources
- U.S. Copyright Office: Copyright and royalties FAQ.
- IRS: Topic No. 414: Rental income and expenses.
Reviewed by the CalculatorHub team, edited by James Graham, 14 June 2026. See our methodology.