🇺🇸 USA Business & Tax Calculators (2026)
Free interactive calculators for US LLC state formation costs, non-resident tax eligibility, and IRS compliance fees.
US LLC Total State & Setup Cost Calculator
Compare Wyoming, Delaware, New Mexico, Florida & Texas state filing fees, registered agent, EIN & BOI report total costs.
US Foreign Owner 0% Tax Eligibility Checker
Test ETBUS and ECI rules to verify if your foreign single-member LLC pays 0% US income tax.
US Form 5472 & $25,000 IRS Penalty Risk Estimator
Calculate statutory $25,000 IRS late penalties, BOI report fines, and tax compliance risk score.
US Sales Tax Economic Nexus & Registration Calculator
Check $100,000 revenue or 200 transaction Economic Nexus limits across US states for Stripe & Shopify sellers.
US Business Bank Account (Mercury/Relay) Eligibility
Check Mercury Bank, Relay Financial, and Wise Business approval odds for foreign-owned US LLCs.
US LLC vs C-Corporation Tax & Structure Calculator
Compare 0% foreign pass-through LLC tax vs 21% US corporate tax for C-Corporations.
USPTO Trademark Filing Fee & Class Calculator
Calculate official USPTO government fees ($250/class), legal search fees, and trademark registration costs.