About TK Profit Calc

Built by sellers, for sellers. Because understanding your true margin shouldn't require a spreadsheet degree.

Alex Chen

TikTok Shop Seller & Tools Builder

LinkedIn

— Sold health & beauty and home goods on TikTok Shop US since 2023; managed 40+ SKUs across multiple categories.

— Built this tool after losing thousands of dollars on products that looked profitable until the affiliate commission hit.

— Background in software engineering and data analytics; obsessed with making complex fee math simple and visual.

Our Mission

"From guessing to knowing — every seller deserves clear numbers."

We believe no seller should go broke because the math was hidden. TikTok Shop's fee structure is genuinely complex: a referral fee, payment processing (sometimes included, sometimes separate), optional FBT fulfillment, creator affiliate commissions, and a refund admin fee that most sellers don't even know exists. Stack all of those on top of your COGS and shipping, and the "profitable" product you sourced can quietly become a losing proposition.

TK Profit Calc exists to make that math completely transparent — in under 10 seconds, for free, with no signup required.

What We Build

TK Profit Calc is a free, browser-based toolkit for TikTok Shop sellers:

  • Profit Calculator — See your true net profit with a visual waterfall chart breaking down every fee. Supports US, UK, and EU5 markets. Compare Self-Ship vs FBT vs 3PL side-by-side.
  • ROI Calculator — Calculate return on investment across your entire advertising and inventory spend, not just per-unit margins.
  • Pricing Strategy Tool — Set a target profit margin and find the minimum selling price that hits it, accounting for all fees.

Our Editorial Standards

Fee accuracy is the foundation of everything we do. Our process:

  1. Primary source verification. Every fee rate we display is sourced directly from TikTok Shop's official Seller Center documentation — not from third-party blogs or hearsay.
  2. Cross-referencing. We cross-check rates against reports from established TikTok Shop seller communities and tools like Margn and TikAdSuite, to catch discrepancies that might indicate a recent change.
  3. Regular audits. We review all fee data at least monthly, and immediately after any announced TikTok Shop policy update.
  4. Public accountability. The "last verified" date is displayed directly in the calculator. If you find an error, let us know and we will fix it within 24 hours.

Fee Data Sources

Our fee rates are sourced from:

If you notice any fee data that appears outdated or incorrect, please report it via our contact form — accuracy is our top priority.

Regional Coverage

We currently support fee calculations for:

  • 🇺🇸 United States — 6% unified referral fee (includes payment processing)
  • 🇬🇧 United Kingdom — 9% referral fee + separate payment processing (~2.9% + $0.30)
  • 🇪🇺 EU5 (France, Germany, Italy, Spain, Ireland) — 9% referral fee + separate payment processing

Southeast Asia market support (Indonesia, Vietnam, Thailand, Malaysia) is on our roadmap for late 2026.

Technical Details

TK Profit Calc is built with Astro, React, and Tailwind CSS. All calculations run entirely in your browser — no data is transmitted to our servers. Your selling prices and margins stay completely private.

Contact & Feedback

Have feedback, found a bug, or want to report an outdated fee rate? Visit our contact page or email us at tikprofitcalc@gmail.com. We read and respond to every message.