Where to form and where to register
A company is formed in one state and then registers in each other state where it actually does business. Many New York businesses form here by filing a certificate of incorporation or articles of organization with the Department of State; others form elsewhere, often Delaware, and then apply for authority to do business in New York. Forming out of state usually does not avoid New York's requirements if the office, the staff, or the work is here, and it typically adds a second set of annual filings and fees. Whether a corporation or an LLC fits better depends on how you plan to raise money, take profits, and bring in partners, and that conversation usually involves your accountant as well. Getting the entity type and the state right at the start costs less than converting later.
Filings that come after the certificate
The state filing is the first step, not the last. New York LLCs carry a publication requirement that must be completed within a set period after formation, and missing it can suspend the company's authority to do business until it is cured. Most companies also need a federal employer identification number from the IRS, state tax registrations, and any licenses tied to the industry or location. Beneficial ownership reporting rules have changed more than once at both the federal and state level in recent years, so the current requirements should be checked at formation rather than assumed. Keep the filed certificate, the filing receipt, the registered agent details, and every notice the state sends, because those are the records banks and investors ask for first.
Ownership terms to settle on day one
Ownership is where incorporation registration most often goes wrong between founders. Who holds what percentage, whether founder shares vest, who contributed money or intellectual property, and how decisions get made are easier to write down while everyone still agrees. For an LLC that means an operating agreement, which New York requires members to adopt; for a corporation it means bylaws and often a shareholders' agreement. When we meet, we walk through the business plan, the people involved, and where the work will happen, and we map out the filings in order. We also flag anything that adds steps before the company can operate, such as a professional license, a regulated product, or a foreign owner.