How to Form an LLC in Delaware (Wilmington) — 2026 Filing Guide

Required?

Yes

Who can serve

Delaware resident individual or a business entity authorized to act as registered agent in Delaware; must maintain a physical DE street address (no PO boxes)

Can I serve myself?

No

Commercial RA cost

~$100/yr

The RA's address is the only address required on the public Certificate of Formation — member names and addresses are not part of the DE public record, which is a privacy advantage over Texas and Florida. Commercial RA services ($50–$150/yr) handle legal mail and service of process; two providers active in this market are Northwest Registered Agent and CT Corporation.

1. Check name availability with the Delaware Division of Corporations Search the Delaware e-Corp name database at icis.corp.delaware.gov to confirm your desired LLC name is available. The name must include a valid designator (LLC, L.L.C., Limited Liability Company, Limited Company, or LC) and must not be deceptively similar to an existing DE entity or reserved name. Optional: reserve for 120 days ($75) while you prepare documents.
2. Appoint a Delaware registered agent Designate a registered agent with a physical Delaware street address (no PO boxes). Unlike Texas and Florida, self-service as RA is only practical if you are a Delaware resident — most out-of-state filers use a commercial RA service ($50–$150/yr). Two representative providers used in the market: Northwest Registered Agent and CT Corporation. The RA's address is the only address required on the Certificate of Formation, keeping member addresses entirely off the public record.
3. File the Certificate of Formation File the Certificate of Formation with the Delaware Division of Corporations via the e-Corp portal at icis.corp.delaware.gov, by fax, or through a formation service. The form requires only the LLC name and RA information — no member names or addresses. Pay $90 (standard) or add an expedited fee: +$50 for 24-hour, +$100 for same-day (by noon), +$500 for 2-hour (by 2 PM), or +$1,000 for 1-hour (by 4 PM). Standard processing is 1–2 business days.
4. Draft an Operating Agreement Delaware's LLC Act (6 Del. C. § 18-101 et seq.) gives members exceptionally broad contractual flexibility — including the ability to waive fiduciary duties, restrict member transfer rights, and define custom voting structures. While not filed with the state, the OA is the foundational document for any DE LLC. Multi-member LLCs especially need a detailed OA before any capital contributions or operational decisions.
5. Obtain an EIN from the IRS After the Certificate of Formation is approved, apply for an EIN at irs.gov/ein. The online application takes under 15 minutes and provides the EIN immediately. Print the EIN Confirmation Letter (CP 575) for the bank.
6. Register as a foreign LLC in your operating state (if applicable) If your LLC will physically operate outside Delaware — which is the case for most Wilmington-registered LLCs — you must register as a foreign LLC in each state where you have economic nexus (office, employees, or regular transactions). Foreign qualification fees and annual obligations in your home state are in addition to Delaware's $300/yr franchise tax.
7. Pay the annual franchise tax by June 1 Delaware LLCs owe a flat $300 Annual LLC Tax each June 1. Pay via the e-Corp portal at corp.delaware.gov. A $200 penalty plus 1.5% monthly interest accrues on unpaid balances after June 1. Unlike Texas's PIR, there is no annual report form — just the tax payment.

Delaware Limited Liability Company Act, 6 Del. C. § 18-101 et seq.; Delaware General Corporation Law (by analogy where LLC Act is silent); Delaware Annual LLC Tax: 30 Del. C. § 502(b); IRS Rev. Rul. 77-137 and subsequent guidance on single-member LLC tax treatment.

Direct filing portal: https://icis.corp.delaware.gov/Ecorp/EntitySearch/NameSearch.aspx

Formation context

Who should form in Delaware?

Recommended for

Venture-backed startups anticipating institutional investment rounds (investors expect Delaware entities); Multi-entity holding structures and managers of investment vehicles seeking predictable LLC case law; Founders and counsel who need DE Court of Chancery jurisdiction over member disputes

Tax treatment (default)

Pass-through by default at the federal level: single-member LLCs are disregarded entities (Schedule C); multi-member LLCs are partnerships (Form 1065). Delaware imposes no personal income tax on non-residents. Delaware's $300/yr Annual LLC Tax is not an income tax — it is a flat franchise tax regardless of revenue.

Most Delaware LLCs are formed by owners who live and operate elsewhere. If you have a physical presence, employees, or regular business activity in another state, that state will require foreign LLC registration and its own annual fees — in addition to Delaware's $300/yr. Form in Delaware only when the structural advantages (Court of Chancery, investor familiarity, contractual flexibility) are worth the dual-state cost.

No publication requirement in Delaware — unlike New York or Nebraska, you do not need to publish notice in a newspaper after filing.

FAQ

Common Delaware (Wilmington) LLC formation questions

Still deciding between an LLC, sole proprietorship, S-Corp, or C-Corp? Our entity-type comparison breaks down formation cost, tax treatment, liability shield, and compliance complexity for all four structures side by side.

Already operating as a sole proprietor, or wondering whether a cheap county DBA filing ($10–$100) is enough instead of forming an LLC? A DBA lets you operate under a trade name — but provides zero liability protection. Our DBA vs LLC comparison breaks down exactly when a DBA is sufficient and when you need a state LLC filing.

Your Articles of Organization are filed — now make your LLC operational. Three actions every new LLC owner needs to take: