Author Tax Estimator — Free US Self-Employment Tax Tool | ScribeCount
⚠️ Disclaimer: This tool provides rough estimates for planning purposes only and does not constitute tax advice. Tax laws change frequently. Consult a qualified CPA or tax professional for advice specific to your situation.
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🧾 Free Tool — US Only

Estimate Your Author Tax Bill Before It Hits

Calculate self-employment tax, income tax, quarterly payment amounts, and see which deductions apply to your author business. For US-based indie authors.

Open Estimator ← All Free Tools
💰 Income & Deductions
All royalties before any expenses
Scrivener, ProWritingAid, ScribeCount, etc.
Home office, courses, research, phone
Spouse income, W-2 wages, etc.
📊 Tax Estimate
Total deductions—
Net self-employment income—
Self-employment tax (15.3%)—
SE tax deduction (½ of SE tax)—
Estimated federal income tax—
Total estimated tax—
Effective tax rate—
Estimated take-home (after tax)—

Quarterly Estimated Tax Payments

Divide your annual estimated tax into 4 equal payments to avoid underpayment penalties.

Q1

Due April 15
—

Q2

Due June 15
—

Q3

Due Sept 15
—

Q4

Due Jan 15
—

Common Author Tax Deductions

Keep receipts for all of these. Consult a tax professional to confirm eligibility.

📢 Advertising & Marketing

Amazon Ads, Facebook Ads, BookBub deals, promo site fees, ARC services, newsletter sponsorships.

✏️ Editorial & Production

Editing, proofreading, cover design, interior formatting, audiobook narration, illustration.

💻 Software & Tools

Scrivener, Vellum, ProWritingAid, Canva Pro, ScribeCount, Mailchimp, website hosting.

🏠 Home Office

Dedicated writing space: calculate square footage % of home for rent/mortgage, utilities, insurance.

📚 Research & Education

Books, writing courses, craft conferences, genre research materials, professional memberships.

📱 Phone & Internet

The business-use percentage of your phone bill and internet service used for writing/marketing.

Frequently Asked Questions

Do authors have to pay self-employment tax?
Yes. If your net author income exceeds $400 per year, you are required to pay self-employment (SE) tax in the US. SE tax is 15.3% of net earnings, calculated on 92.35% of your net self-employment income.
When do indie authors need to pay quarterly estimated taxes?
If you expect to owe $1,000 or more in federal income tax for the year, you should pay quarterly estimated taxes. The due dates are April 15, June 15, September 15, and January 15. Underpaying can result in a penalty.
What can indie authors deduct on their taxes?
Common author deductions include: cover design, editing, writing software subscriptions, a home office (dedicated space), advertising and promotional spend, author website hosting, writing courses, conference fees, books and research materials, and business portions of your phone and internet.
Should I form an LLC as an indie author?
For most authors, a sole proprietorship (Schedule C) is sufficient and simpler. An LLC provides some liability protection but doesn't change your tax by default. S-Corp election typically only makes sense above $40,000–$60,000 in annual net income. Consult a tax professional for advice specific to your situation.

Know Your Income Before Tax Season Hits

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