How to Sell eBooks Online and Keep More of the Revenue

An eBook is one of the most profitable things you can sell. You write it once, and every copy after the first costs you essentially nothing — no printing, no shipping, no inventory. In theory, almost the entire sale price is margin. In practice, most authors watch a surprising slice of each sale disappear before it reaches their bank account: marketplace cuts, payment fees, monthly software subscriptions, and cross-border tax they didn't even know they owed.

This guide is about the second half of that story — not just how to sell an eBook, but how to keep more of what each copy earns. If you want the full walkthrough of formatting, writing, and launching, start with our complete guide to selling eBooks online. Here we'll focus on the economics: where the money leaks, and how to plug the holes.

Why eBook margins look better on paper than in your bank

The appeal of digital publishing is the margin. A physical book might cost several dollars to print and ship before anyone makes a cent; an eBook costs the same to deliver whether you sell ten copies or ten thousand. But "zero marginal cost" only describes production. Everything that sits between the buyer's card and your payout still takes a cut, and those cuts vary wildly depending on where and how you sell.

Broadly, four things eat into an eBook sale:

• Marketplace or platform fees — the percentage a store takes for hosting and selling your file.
• Payment processing — the card networks' cut, usually around 2.9% + $0.30 per transaction if it's billed separately.
• Fixed software costs — monthly subscriptions for a store builder, email tool, or checkout that you pay whether you sell or not.
• Tax — VAT, GST, and US sales tax on digital goods, which many countries require you to collect and remit on every sale.

The last one catches almost everyone off guard, so it's worth understanding before it turns into a compliance headache.

The tax trap nobody warns first-time authors about

Sell an eBook to a reader in the EU, the UK, Australia, or dozens of other jurisdictions, and the sale is subject to VAT or GST on digital goods — often 20% or more. The obligation frequently falls on the seller from the very first sale, with no small-business threshold for foreign sellers. If you're running your own checkout, that means registering, collecting the right rate for the buyer's country, and filing returns. Miss it, and you're either paying the tax out of your own margin or exposed to back-taxes and penalties.

There is a cleaner path: sell through a merchant of record. A merchant of record (MoR) is the legal seller on the receipt. It calculates, collects, and remits VAT, GST, and US sales tax on your behalf across every country, so a reader in Berlin or Sydney can buy without you touching a tax form. For a solo author, offloading tax compliance is often worth more than a point or two of fee difference — it removes an entire category of risk and admin.

Channel math: marketplace vs. your own store

Where you sell shapes how much you keep more than almost any other decision. The two broad options are a big marketplace (like Amazon's Kindle store) or your own storefront. Neither is universally better — they trade discovery for margin and control.

The marketplace trade-off

A large marketplace brings built-in traffic — millions of shoppers who might stumble onto your book. That's real value, especially early. The cost is twofold: the platform takes a significant royalty cut (which can swing dramatically based on your price point and rules you don't control), and you never own the customer relationship. You can't easily email past buyers, upsell them a second book, or move them to a different platform. You're renting an audience, not building one.

The own-store trade-off

Selling from your own store flips it. You bring the traffic — from your list, social channels, or a link-in-bio that sells — but you keep far more of each sale and, crucially, you own the buyer. You can follow up, bundle, launch a sequel to past customers, and build a real business instead of a series of anonymous transactions. The smart play for most authors isn't either/or: use a marketplace for discovery if it helps, but drive your core sales and repeat business through a store you control.

A worked example: same book, two setups

Let's make the difference concrete. Say you sell a $25 eBook and, through consistent promotion, move 200 copies a month — $5,000 in gross sales.

Setup A — a stitched-together stack. You use a store builder on a $29/month plan, a separate payment processor at 2.9% + $0.30 per sale, and you're on the hook for VAT on your international orders yourself. Roughly:

• Payment processing: 2.9% of $5,000 + $0.30 × 200 = $145 + $60 = $205
• Software subscription: $29
• Plus the unpriced cost of tracking and remitting VAT yourself — hours of admin, or an accountant's fee

You keep about $4,766 before your own tax work, and you still carry the compliance risk.

Setup B — one itemized-fee platform. You sell through a platform with an itemized transaction cost (~$5.00 on $100) that includes payment processing and acts as merchant of record, so tax is handled for you:

• Platform fee: 2% of $5,000 = $100
• Monthly software cost: $0
• VAT/GST/sales tax admin: handled — $0 of your time

You keep about $4,900 — and zero hours go to tax filing. Setup B wins on both fronts: its 2% headline fee is lower than Setup A's payment processing alone, and once you add Setup A's monthly subscription and the very real cost of doing your own cross-border tax, the itemized-fee option wins decisively on total cost and peace of mind. At low volume, when that $29/month is a big share of revenue, an itemized fee that only charges when you sell wins outright.

The lesson isn't "always pick the lowest percentage." It's to compare the fully loaded cost — fees, fixed subscriptions, and the tax work you'd otherwise do yourself — not just the number on the pricing page.

Pricing to protect your margin

How you price also decides how much of each sale survives. A few principles that keep more revenue in your pocket:

• Avoid the fixed-fee squeeze at low prices. A flat $0.30 processing fee is nothing on a $25 book but brutal on a $2 one. If you price low, you hand a big chunk to per-transaction costs — a reason to bundle rather than sell rock-bottom singles.
• Bundle to raise average order value. Selling three related eBooks as a $45 bundle instead of one $19 title lifts the revenue per checkout while the delivery cost stays zero.
• Add an upsell at checkout. A companion workbook, template pack, or audio version offered at the moment of purchase can lift revenue per buyer with no extra traffic. If your platform has built-in upsells and monetization tools, this is a switch you flip, not a project.

Keep the buyer, not just the sale

The single biggest revenue leak isn't a fee — it's losing the customer after one purchase. An eBook buyer who liked your work is the warmest possible audience for your next one. If you sell somewhere you can capture their email and follow up, the lifetime value of that reader can be several times the price of the first book. Bundle a list you actually own with your store and each launch compounds instead of starting from zero.

Sell your eBook where the math works in your favor

Selling an eBook profitably comes down to keeping the stack simple and the fees honest. Pocketsflow was built for exactly this: a single itemized transaction cost (~$5.00 on $100) with no monthly charge, payments running through our payment processor, and Pocketsflow acting as merchant of record so VAT, GST, and US sales tax are calculated and remitted for you across 140+ countries. Your storefront, checkout, email suite, affiliate program, and upsells all live in one place — so you're not paying three subscriptions and reconciling three tools to sell one file.

Write the book once, price it to protect your margin, sell it where you keep the customer, and let the platform handle the fees and tax. If you're setting up the product itself, our complete guide to selling eBooks online walks through formatting and launch, and when you're ready to sell, start selling on Pocketsflow for free and keep more of every copy you sell.