Editorial Policy & Research Standards
Last updated: January 2026
1. Editorial Philosophy: Accurate, Independent, Practical
FeeKit is an independent digital resource dedicated to providing practical calculation utilities and educational business finance resources for freelancers, consultants, digital agencies, service businesses, online sellers, and small-business owners.
Because our users make operational, pricing, and budgeting decisions based on our tools, we treat mathematical accuracy, clear sourcing, and editorial independence as foundational requirements. We do not publish generic content, synthetic marketing fluff, or unverified claims.
2. Sourcing Standards & Primary Documentation
Every formula, statutory tax bracket, and merchant rate published on FeeKit is referenced directly against primary official sources:
IRS publications (Form 1040-ES, Schedule C, SECA guidelines), UK HM Revenue & Customs (HMRC Notice 700, MTD schedules), and US state Departments of Revenue (e.g., California CDTFA, Texas Comptroller, New York DTF).
Official merchant service pricing schedules and developer documentation from Stripe, PayPal, Square, Wise, Authorize.Net, and e-commerce platforms (Shopify, Amazon FBA fee tables).
Standard corporate finance formulas (contribution margin, break-even unit volume, CAGR, landed cost accounting) derived from established management accounting standards.
3. Mathematical Verification & Calculation Testing
Prior to deploying any calculation model or rate update, our engineering team executes automated unit test scripts and manual edge-case evaluations:
- Automated Validation: Automated rate checks (`npm run validate:rates`) run against current state tax databases and payment gateway fee schedules to confirm that no calculation regressions exist.
- Two-Way Precision: We verify bidirectional models (forward charge calculations and reverse payout formulas) to confirm that rounding to two decimal places produces exact cents without compounding precision loss.
- Client-Side Execution: All mathematical computation runs client-side in the user's browser, ensuring that testing matches the exact environment encountered by visitors.
4. Currency, Updates & Revision Protocol
Fiscal statutes and digital payment pricing change over time. We maintain a routine update protocol:
5. Editorial Independence & Affiliate Standards
FeeKit maintains complete separation between editorial evaluation and commercial partnerships:
We may participate in affiliate programs where we earn a referral commission if a user signs up for a recommended product or service. However, affiliate relationships never dictate inclusion or create artificial editorial bias. We do not accept sponsored placements that restrict honest evaluations, and we do not rank software based on commission compensation.
For more details on our commercial policies, please review our Affiliate Disclosure.
6. Clear Boundaries on Professional Advice
FeeKit is not a CPA firm, accounting practice, legal firm, or investment advisory service. Our tools provide mathematical estimates based on published guidelines. We do not claim certified professional credentials, and our calculations do not constitute personalized legal, tax, or financial counsel. Users must verify their specific tax filings and contracts with a licensed professional.
7. How to Report Errors or Request Corrections
We welcome scrutiny from accountants, freelancers, and operators. If you notice an outdated statutory tax bracket, a changed payment processing rate, or an ambiguity in any guide, please contact our editorial desk immediately:
Corrections are reviewed by our engineering desk within 24–48 business hours and deployed upon factual verification.