Doing Business in the United States Certification

The Doing Business in the United States Certification is a free beginner-level, 15-minute skill test from Science of Apps. It tests doing business in the United States — federalism and state-by-state regulation, choosing a legal entity such as an LLC or C corporation, Delaware incorporation, EIN registration and banking, federal, state and sales taxes, nexus and economic nexus, employment law, at-will employment and anti-discrimination rules, immigration and work visas, contracts and litigation culture, intellectual property protection, data privacy laws such as CCPA, export controls and sanctions, SelectUSA support, and American business culture and negotiation style — written to SBA, IRS, SelectUSA, EEOC and FTC guidance for 2026 and 2027. Score 70% or more on its 15 questions to earn a verifiable Doing Business in the United States certificate (SOA-DBUS). Every question is based on published standards and research — including Business guide (US Small Business Administration), Publication 15: Employer's Tax Guide (US Internal Revenue Service), SelectUSA investment guidance (US Department of Commerce) — and each answer is explained with its source.

Science of Apps offers a free Doing Business in the United States Certification, written for 2026 and 2027. It tests setting up, tax, employment and immigration and legal, compliance and culture with 15 original scenario questions in all, each naming its published source; you get an instant score and a verifiable certificate with a credential ID you can add to LinkedIn.

Read the three skill areas on this page, then take the 15-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Doing Business in the United States certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Business guide (US Small Business Administration); Publication 15: Employer's Tax Guide (US Internal Revenue Service); SelectUSA investment guidance (US Department of Commerce); Form I-9, Employment Eligibility Verification (USCIS); Employers: EEOC guidance (US Equal Employment Opportunity Commission); Manage your finances (Small business guide) (U.S. Small Business Administration). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Three skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Setting Up (Federal and state systems, Entity choice and Registration and banking); Tax, Employment and Immigration (Taxes, Employment law and Visas); Legal, Compliance and Culture (Contracts and IP, Privacy, trade and compliance and Business culture). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

International founder or executive entering the US, Expatriate manager relocating to the US, Consultant or international business student, Sales or business development professional and Investor or adviser to foreign companies. It suits students at leading universities, career switchers and experienced professionals who want quick, verifiable proof of Doing Business in the United States knowledge in 2026 and 2027.

Students at national flagships and diaspora students at tier-1s abroad search for 'doing business in X' and local-market skills in their own language. Passing earns a founder-signed Science of Apps certificate with a credential ID and QR code that recruiters can verify.

Delaware has a well-developed body of corporate law, a specialised business court (the Court of Chancery) and is familiar to investors, so many VC-backed startups form Delaware C corporations.

A connection to a state — such as a physical presence or, after the 2018 Wayfair decision, enough sales into the state — that requires a business to collect and remit that state's sales tax.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

15 questions — 5 from each of 3 skill areas — with a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

We rate it Beginner: no experience needed: fundamentals and clear reasoning. It has 15 scenario questions — 5 from each of 3 skill areas — and a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.