I’ve had a Facebook ads dashboard sitting in front of me showing a return on ad spend that looked, by any normal reading, like a good campaign. And a bank balance that told a different story entirely. That gap is the whole subject of this post, and it’s more common than most authors talking about ad spend will admit.
The cost per click for author ads on Facebook is usually somewhere between $0.10 and $0.50, depending on genre, audience size and how tight the targeting is. Some authors report getting it as low as $0.15 and call that a great outcome — and for a click, it is. The problem isn’t the click price. It’s what happens after the click converts into a sale, because a sale is not the same thing as money in your account.
Here’s the part that ROAS as a metric quietly hides: it’s usually calculated against the retail price of the book, not against what you actually get paid. If you’re selling through a retailer — Amazon, Audible, any of the major platforms — that retailer takes a cut before your royalty is calculated, and for audiobooks specifically that cut is steep. So a campaign can show a 3x or 4x return on ad spend and still leave you close to breakeven once the retailer’s share, the production cost, and the ad spend itself are all subtracted from what actually lands in your bank account. The ad platform isn’t lying to you. It’s just answering a narrower question than the one you’re actually asking.
This is also, I think, the more honest version of the “my book ads stopped converting” story. In most cases the ads didn’t stop converting. They kept converting exactly the way they always had — the campaign just stopped being worth running once someone did the arithmetic on where the revenue was actually going. That’s a harder thing to notice than a conversion rate dropping, because nothing in the dashboard flags it. You have to go looking.
There’s a widely repeated figure — a survey claiming that a majority of successful indie authors run paid ads, spending around $250 a month, with a median ROI somewhere between 150 and 300%. I went looking for the original source of that number and couldn’t verify it directly, which means I’m not going to hand it to you as fact. Treat it the way I’m treating it: a claim worth being curious about, not a number to plan a budget around.
What actually moves the needle on this problem isn’t the ad platform at all — it’s the sales channel behind the click. Selling audiobooks direct instead of through Amazon or Audible changes the royalty math completely, because there’s no retailer taking a cut before you see the money. The production cost of an audiobook is the same either way — narration, editing, mastering, whether the voice is human or AI-narrated (and AI narration has genuinely improved, though it’s a decision to make on its own merits, not a shortcut that automatically fixes your margins) — but the destination of every dollar after that cost is fixed changes depending on where the sale happens.
If I were running my first book launch again, the one thing I’d check before spending a cent on ads isn’t the CPC. It’s what percentage of each sale I actually keep, channel by channel. That number decides whether a “good” ROAS is real profit or an expensive way to move stock at a loss.
Readloop’s audiobooks and ebooks sell direct rather than routing every sale through a retailer’s cut — you can see how that’s set up at readloop.net/books/. It won’t change what your ads cost per click. It changes what happens to the money after someone clicks.
So the question worth sitting with isn’t “was my ROAS good this month.” It’s: of the last hundred dollars a reader spent on your book, how much of it actually reached you — and did you know that number before you looked, or after?
https://go.vincere-nos.com/r/05b36489cded