https://trueroyalties.com/blog Know the real net profit of your Amazon KDP books by combining KDP royalties and Amazon Ads spend in one continuous view. en Sun, 12 Jul 2026 09:50:05 GMT https://trueroyalties.com/blog/acos-vs-tacos-kdp https://trueroyalties.com/blog/acos-vs-tacos-kdp ACOS measures a single campaign. TACOS measures your whole book business, including the organic sales your ads lift. Here is the difference, the formulas, healthy benchmarks, and why a falling TACOS is the best signal in KDP advertising. Mon, 06 Jul 2026 00:00:00 GMT Amazon Ads Metrics https://trueroyalties.com/blog/break-even-acos-amazon-kdp-ads https://trueroyalties.com/blog/break-even-acos-amazon-kdp-ads Break-even ACOS is the exact point where an Amazon ad stops costing you money. Here is the formula, worked examples for ebooks and paperbacks, and why comparing ACOS to your list price is the mistake quietly draining your budget. Wed, 08 Jul 2026 00:00:00 GMT Amazon Ads Profitability https://trueroyalties.com/blog/find-wasted-ad-spend-amazon-book-ads https://trueroyalties.com/blog/find-wasted-ad-spend-amazon-book-ads Unmanaged Amazon book campaigns waste 30–50% of their budget on clicks that never convert. Here is how to read your search-term report, concrete rules for negative keywords, and why waste should be measured against net profit. Thu, 02 Jul 2026 00:00:00 GMT Amazon Ads Optimization https://trueroyalties.com/blog/kdp-profit-across-marketplaces-currency-tax https://trueroyalties.com/blog/kdp-profit-across-marketplaces-currency-tax The same book can be profitable in the US and lose money in Germany once ad VAT, withholding tax, and currency conversion are counted. Here is why you can't just add up numbers from different dashboards — and what a consolidated, tax-aware P&L should look like. Tue, 30 Jun 2026 00:00:00 GMT Marketplaces Profitability https://trueroyalties.com/blog/kindle-unlimited-kenp-hidden-ad-profit https://trueroyalties.com/blog/kindle-unlimited-kenp-hidden-ad-profit When a Kindle Unlimited reader clicks your ad and borrows your book, Amazon records the spend but zero revenue — so your ACOS looks awful even when you made money. Here is how KENP page-read royalties change the math, with the true ACOS formula. Tue, 07 Jul 2026 00:00:00 GMT Kindle Unlimited Profitability https://trueroyalties.com/blog/net-profit-per-book-kdp https://trueroyalties.com/blog/net-profit-per-book-kdp An account-level ACOS hides the losing titles your winners are subsidising. Here is how to calculate net profit per book, the costs authors forget, and a simple framework for deciding what to scale, fix, or pause. Sat, 04 Jul 2026 00:00:00 GMT Profitability KDP