Free tools
31 free tools for founders outside the US.
Calculators, checkers and generators for choosing, forming and running a US company from abroad, and for selling through it. No sign-up. Every figure comes from the source it names.
Checked by the BaseAcross team.
01 · Starting the company
Starting the company.
Which company, in which state, under which name, and what it costs.
- LLC, C-Corp or DBA? A tool for founders abroadSix questions settle it for a founder abroad: LLC or C-Corp, what your country does with it, every yearly form and penalty, and why a DBA or S-Corp won't work.Open the tool
- LLC cost calculator for founders abroadWhat a Wyoming or Delaware LLC costs over one, three or five years, with every due date, the tax return and what a missed date costs.Open the tool
- LLC fees by state: to form and to keepWhat each of the 51 states charges to form an LLC and to keep it for five years, with due dates and filing offices. Free to reuse with a link.Open the tool
- Business name checker for Wyoming and DelawareCheck a company name against Wyoming's or Delaware's naming rules, search the state's register in one tap, or have us search it and email you.Open the tool
- Store name generator, with the checksTwo dozen store and brand names from what you sell, each graded as a US trademark, with the .com checked live and the Etsy fit shown.Open the tool
- Articles of Organization, line by lineWhat each line of Wyoming's Articles of Organization and Delaware's Certificate of Formation asks, what goes public, and how to fix a mistake.Open the tool
- Free LLC operating agreement generatorWrite an LLC operating agreement for Wyoming, Delaware or any state and download the PDF. Free, no sign-up, made in your browser.Open the tool
- Business license lookup by state and activityAnswer three questions to see the licences your US company needs now, later and not at all, by state and activity, with each official link.Open the tool
02 · Tax and staying compliant
Tax and staying compliant.
What the company owes, what it files, and when.
- LLC tax calculator for non-residentsEstimate the US tax on a US LLC or C-Corp owned from abroad, at 2026 rates: business profit, withholding, treaties, days in the US, and what's filed.Open the tool
- S-Corp tax calculator for founders abroadCan a founder abroad elect S-Corp, and what would it save? The 2026 answer, from the IRS's own rates and rules, with the calculation for US residents.Open the tool
- Form 5472 due date and penalty calculatorYour Form 5472 deadline, with the DC holidays that move it, and what a missed year costs: $25,000 each, more after an IRS notice. What to do if one slipped.Open the tool
- LLC compliance calendar: every deadline, datedEvery filing your US company owes for two years, dated from its state and formation day: annual report, Form 5472, FBAR, 1099s. Add it to your calendar.Open the tool
- US tax treaty rates by countryThe rate the US withholds on royalties, software, dividends and interest for all 65 treaty countries, from the IRS's own table, and how to claim it.Open the tool
- W-8BEN form helper for founders abroadWhich form a US payer needs, what's withheld for your country, and the official W-8BEN filled in your browser. Treaty rates for 65 countries.Open the tool
- Sales tax nexus checker, every stateSee which US states want you to collect sales tax, with your store's and marketplace sales counted the way each state counts them.Open the tool
03 · Getting paid and banking
Getting paid and banking.
Which accounts you can open from where you live, and what each payment costs.
- US bank account checker for founders abroadWhich US business accounts open for your company, from where every owner lives: Mercury, Bluevine, Wise, Relay and more, with each bank's own rule.Open the tool
- Stripe, Mercury and Wise by countryWhere Stripe, Mercury and Wise serve a founder abroad, for 100 countries, read from each provider's own pages. Free to reuse with a link.Open the tool
- Stripe fee calculator, US and abroadEvery Stripe fee on a payment, what to charge to keep a round number, and what a US customer's card costs through Stripe in your own country.Open the tool
- PayPal fee calculator for US business accountsWork out PayPal's fees on a payment, or what to charge to receive an amount: every payment type, international and conversion fees, and Stripe beside it.Open the tool
- Wise fee calculator for a US companyWhat Wise Business costs to receive US dollars and move them home in your currency, and first whether Wise gives a company run from your country USD details.Open the tool
- Payoneer fee calculator for founders abroadWhat Payoneer really costs to receive US dollars and bring them home, beside Wise and your own US company's bank, from each provider's published fees.Open the tool
04 · Selling and margins
Selling and margins.
Marketplace fees, import duty, and what a sale leaves you.
- Shopify fee calculator, every planShopify's plan, card and transaction fees on your orders, every plan priced at your volume, and whether Shopify Payments is open where you are.Open the tool
- Amazon FBA fee calculator, 2026 ratesFind a product's 2026 FBA size tier and fulfillment fee from its size and weight, peak or non-peak, with the referral fee and profit per unit.Open the tool
- Amazon ACoS calculator with break-even ACoSWork out ACoS, TACoS and ROAS, and the break-even ACoS your margin allows, with Amazon's referral fee by category worked out for you.Open the tool
- Etsy fee calculator for 61 countriesEvery Etsy fee on an order, by your bank's country: listing, 6.5% transaction, payment processing, regulatory and Offsite Ads, with your profit.Open the tool
- eBay fee calculator for sellers abroadEvery eBay.com fee on a sale to a US buyer, for a seller registered abroad and for a US company, from eBay's own 2026 rate cards.Open the tool
- US import duty calculator for 2026 tariffsDuty on your HTS code from the official schedule, the 2026 forced-labour tariff by country, CBP's fees and the landed cost, for a US company importing goods.Open the tool
- Profit margin calculator, after feesMargin, markup and the price for a target margin, after platform fees, freight, US import duty, postage, ads and refunds, channel by channel.Open the tool
- Markup calculator, after marketplace feesTurn a cost into a price from a markup, or from the margin you want to keep after Etsy, eBay, PayPal or Stripe fees, with markup and margin side by side.Open the tool
- Break-even calculator: sales to cover costsHow many sales a month cover your costs, with Stripe, PayPal, Etsy or Amazon fees, refunds, your US company and your own pay counted in.Open the tool
- ROAS calculator: are your ads making money?Check your ROAS against the break-even your margin sets, with a target ROAS, cost per order, repeat buyers and the most a click can cost.Open the tool
Ready when you are
Worked it out? Form the company.
About four minutes of questions, then we file. You see the whole order before anything is charged.
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You're startingLLC · WY
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