Taxes, Bookkeeping, and Managing App Revenue
Stay on the right side of the law and keep more of what you earn by understanding how app revenue is taxed, how store fees and withholding work, and how to keep clean books.
Taxes, Bookkeeping, and Managing App Revenue is a free Indie Hacker Mobile Apps lesson on CoddyKit — lesson 4 of 4. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Indie Hacker Mobile Apps learning path, one of 4 lessons in the course, and your progress syncs across the web and the CoddyKit app.
Revenue Comes With Responsibilities
The moment your app earns money, you have tax and bookkeeping obligations. Getting this wrong leads to penalties; getting it right keeps more money in your pocket.
This lesson covers the financial basics every indie founder needs.
Gross vs Net Revenue
What the store reports and what hits your bank differ. Apple and Google take a commission (often 15-30 percent) before paying you.
function netAfterStoreFee(gross, feePercent) {
return gross - (gross * feePercent / 100);
}
console.log(netAfterStoreFee(1000, 30));Stores Often Handle Sales Tax
For most consumer apps, the stores act as merchant of record, collecting and remitting sales tax or VAT for you.
This is a big relief — but you still owe income tax on your earnings.
Income Tax on Profits
You are taxed on profit, not revenue. Profit is income minus deductible business expenses. Track expenses carefully — they lower your tax bill.
function profit(revenue, expenses) {
return revenue - expenses;
}
console.log(profit(50000, 12000));Deductible Expenses
Common deductions for app businesses:
- Developer account fees
- Hosting and BaaS costs
- Software subscriptions
- Marketing spend
- A portion of home office and devices
Keep receipts for everything.
Withholding on Foreign Payouts
If you sell into the US from abroad, you may need to file a tax treaty form (like a W-8BEN) to avoid heavy withholding on royalties.
Filing the right form can cut withholding from 30 percent to as low as zero.
Separate Business Finances
Open a dedicated business bank account. Mixing personal and business money makes bookkeeping a nightmare and weakens any liability protection from your business entity.
Bookkeeping Basics
Bookkeeping means recording every transaction. At minimum, log:
- Date
- Amount
- Category (income or expense type)
Tools like spreadsheets or accounting software keep this organized.
Setting Aside for Taxes
Do not spend money you owe the tax office. A safe habit: set aside a fixed percentage of every payout into a separate tax savings account.
function setAside(payout, taxRate) {
return payout * taxRate / 100;
}
console.log(setAside(3000, 25));When to Get a Professional
DIY works early, but as revenue grows, an accountant pays for themselves through deductions, compliance, and time saved.
Cross-border app income especially benefits from expert advice.
A Financial Hygiene Checklist
Stay clean:
- Separate business bank account
- Track all income and expenses
- File treaty forms to avoid over-withholding
- Set aside taxes from every payout
- Get an accountant as you scale
Good financial hygiene protects and grows your business.
Quick Check
Test your app finance knowledge.
Recap
You learned to manage app revenue:
- Stores take a commission and often handle sales tax/VAT
- Income tax is on profit, so track deductible expenses
- File treaty forms to avoid over-withholding on foreign payouts
- Separate business finances and keep clean books
- Set aside taxes and hire an accountant as you scale
Sound finances keep your indie business healthy and legal.
Frequently asked questions
Is the “Taxes, Bookkeeping, and Managing App Revenue” lesson free?
Yes — the full text of “Taxes, Bookkeeping, and Managing App Revenue” is free to read here on the web, and the Indie Hacker Mobile Apps course includes 4 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Indie Hacker Mobile Apps course, upgrade to CoddyKit PRO.
What will I learn in “Taxes, Bookkeeping, and Managing App Revenue”?
Stay on the right side of the law and keep more of what you earn by understanding how app revenue is taxed, how store fees and withholding work, and how to keep clean books. You practise Indie Hacker Mobile Apps with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Indie Hacker Mobile Apps?
No prior experience is required. Indie Hacker Mobile Apps on CoddyKit is structured for beginners through advanced learners; this is — lesson 4 of 4, so you can start here or from the beginning and move at your own pace.
How long does the “Taxes, Bookkeeping, and Managing App Revenue” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Indie Hacker Mobile Apps lesson?
Yes. Every Indie Hacker Mobile Apps lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Privacy Policies & Terms of Service
- App Store Compliance & Guidelines
- Business Entities & Financial Planning
- Taxes, Bookkeeping, and Managing App Revenue