If you run an online business, build SaaS apps, manage freelance taxes, or sell products across e-commerce marketplaces, you know how frustrating it is to hunt down accurate, up-to-date calculation tools. Most calculators online are either buried behind paywalls, bloated with ads, or outdated with old tax years and fee schedules.
At FreeToolForge, we spent the last few months engineering a suite of high-performance, interactive, and completely free web utilities tailored specifically for the 2026 economic and regulatory landscape. Each tool features dynamic visualizations (powered by GSAP and Recharts) and deep cornerstone guides.
Below is the complete directory of our 10 newest tools, built to save you time, protect your profit margins, and keep you compliant.
- TikTok Shop Seller Profit & Fee Calculator 2026 Full URL: https://freetoolforge.org/tools/calculators/tiktok-shop-profit-calculator
What it does: Essential for e-commerce sellers scaling on social commerce. It computes your net profit, true profit margins, 6% platform referral fees, customizable creator affiliate commissions (0%–40%), FBT fulfillment costs, and optional promotional fees with a real-time GSAP visualizer.
- S-Corp vs LLC Tax Savings Calculator 2026 Full URL: https://freetoolforge.org/tools/calculators/s-corp-tax-savings-calculator
What it does: Designed for profitable freelancers and business owners wanting to optimize their tax structure. It models exact self-employment (FICA) tax savings by switching from a standard Single-Member LLC to an S-Corporation, fully updated with the 2026 IRS Social Security wage base limit ($184,500).
- Multi-Model AI API Cost Estimator 2026 Full URL: https://freetoolforge.org/tools/calculators/ai-api-cost-estimator
What it does: Built for AI developers and founders. It compares live token pricing across OpenAI (GPT-4o/mini), Anthropic (Claude 3.5 Sonnet/Haiku), and Google (Gemini 1.5 Pro/Flash), factoring in a 50% Batch API and Prompt Caching discount toggle.
- Making Tax Digital Checker 2026 (MTD ITSA) Full URL: https://freetoolforge.org/tools/calculators/mtd-eligibility-checker
What it does: Tailored for UK self-employed individuals and landlords. It checks HMRC Making Tax Digital for Income Tax eligibility across the phased 2026–2028 rollouts (£50k / £30k thresholds) and outlines quarterly reporting deadlines.
- Do I Need to File a BOI Report? (2026 FinCEN Checker) Full URL: https://freetoolforge.org/tools/calculators/boi-reporting-checker
What it does: An interactive decision-tree questionnaire that helps US business owners determine their Beneficial Ownership Information (BOI) reporting exemptions and filing obligations under current FinCEN regulations.
- UAE Peppol E-Invoice Generator (PINT AE) Full URL: https://freetoolforge.org/tools/calculators/peppol-einvoice-generator/uae
What it does: Generates compliant PINT AE / Peppol e-invoices to help businesses prepare for the UAE's mandatory e-invoicing rollout and pilot programs.
- Startup Runway & Cash Burn Rate Calculator 2026 Full URL: https://freetoolforge.org/tools/calculators/startup-runway-calculator
What it does: Calculates gross and net monthly cash burn rates, projected "Death Date," and total runway months using dynamic interactive burndown charts.
- SaaS LTV, CAC & Payback Period Calculator 2026 Full URL: https://freetoolforge.org/tools/calculators/saas-ltv-cac-payback-dashboard
What it does: A comprehensive B2B SaaS unit economics dashboard that instantly computes Customer Lifetime Value (LTV), Customer Acquisition Cost (CAC) Payback Period, and LTV:CAC health ratios.
- DAC7 Threshold Checker Full URL: https://freetoolforge.org/tools/calculators/dac7-threshold-checker
What it does: Determines EU DAC7 digital platform reporting obligations for marketplace sellers, checking against the 30-transaction and €2,000 annual revenue thresholds.
- 1099 vs W2 Take-Home Pay Calculator 2026 Full URL: https://freetoolforge.org/tools/calculators/1099-vs-w2-calculator
What it does: Compares independent contractor (1099) vs traditional employee (W2) take-home pay by factoring in self-employment taxes, health insurance overhead, and paid time off to reveal your true equivalent hourly rate.
Explore, Test, and Share
All tools on FreeToolForge are free to use with no account required. Bookmark your favorites, run your numbers, and feel free to share feedback or suggestions in the comments below!
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