| ein | No | Optional EIN (federal tax ID) add-on, when available — formation.requirements states whether it can currently be sold and at what price. `wanted` records the founder's decision. No Social Security Number is accepted here: the founder enters it in a secure panel on corpuslaw.us. | |
| state | Yes | Two-letter US state code, e.g. 'MS', 'WY', 'DE'. | |
| parties | No | The people. LLC: at least one 'member' and an 'organizer' (one person holding both roles appears as two entries). Nonprofit: an 'incorporator' and at least 3 'director' entries (plus officers where the state requires them). | |
| expedite | No | Optional expedited state filing, available only in states where formation.requirements lists an EXPEDITE line (the price and listed days are in that line). true records that the founder chose it. | |
| naicsCode | No | NAICS industry code, 2–6 digits (formation.lookup_naics returns candidates). | |
| nonprofit | No | Nonprofit-only fields. | |
| entityType | Yes | Entity type to form. | |
| management | No | LLC management type. | |
| contactEmail | No | Founder contact email. | |
| proposedName | No | Proposed company name. | |
| referral_code | No | A referral code issued by account.status. With a valid code the founder saves 25% of the Corpus service fee and the order is credited to the code; an absent or unrecognised code changes nothing about the link. | |
| principalOffice | No | Principal office address. Street, city and state are required for a complete draft. In Wyoming and Delaware, an office outside the US needs street, city and country instead; state is then the province or region, if it has one. Maryland and New York need an office in that state. | |
| businessActivity | No | In one plain sentence, what the business actually does, in the founder's words (not the company name). Corpus researches the licenses and permits that apply from this. | |
| expediteSkipReview | No | Optional, with expedite: true, where formation.requirements shows a SKIP REVIEW line. true records that the founder heard that SKIP REVIEW sentence verbatim and explicitly agreed. It takes effect only on an order an agent pays for directly, where the founder's email confirmation page shows the choice again before anything is filed. A handoff link ignores it: on the page the founder ticks it themselves. | |
| stateSpecificAnswers | No | Per-state quirk answers under the EXACT keys shown by formation.requirements (e.g. "would_you_like_to_list_members_managers_on_the_state_record"). Values are strings or booleans. | |