Glossary

Plain-English definitions.

Every acronym a non-US founder eventually needs — in a few sentences each.

Stripe Atlas
Stripe's incorporation service — Delaware C-Corp, LLC or C-Corp subsidiary, EIN and 83(b) filing for $500 one-time.
EIN
Employer Identification Number issued by the IRS. Required for US banking and full Stripe activation.
83(b) election
A US tax election founders in a C-Corp usually file within 30 days of receiving restricted stock.
Registered agent
A required in-state representative that receives legal documents on behalf of a US company.
Franchise tax
An annual state tax paid by Delaware corporations regardless of activity level.
Form 5472
An IRS information return often required for foreign-owned US disregarded entities.
BOI
Beneficial Ownership Information report filed under FinCEN rules by many US companies.
ITIN
Individual Taxpayer Identification Number — a US tax ID for non-US individuals in some situations.
Mercury
A US business banking provider popular with non-US founders.
Payment Links
A no-code Stripe way to accept payment for one-off products or invoices.

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