Form a Delaware Limited Partnership Without the Guesswork

A limited partnership is a business made up of two kinds of partners with two very different roles. At least one general partner runs the business, signs contracts, and carries personal liability for the partnership's obligations. At least one limited partner contributes capital, shares in profits and losses, and — as long as they stay out of day-to-day management — is shielded from liability beyond what they put in. That split is the whole point of the structure: money on one side, management on the other.

Delaware governs limited partnerships under Title 6, Chapter 17 of the Delaware Code, the Delaware Revised Uniform Limited Partnership Act (commonly abbreviated DRULPA). The statute has been refined over decades of use by funds, real estate syndicates, and family investment vehicles, and Delaware's Court of Chancery has produced a deep body of case law interpreting it. For anyone who wants predictable answers to partnership disputes, that track record is a large part of the appeal.

Where an LP and an LLC part ways

People often confuse the two because both offer limited liability to their investors. The differences matter:

• Management roles are fixed by role, not by choice. In an LLC, members can be managers or passive; you pick. In an LP, the general partner manages and the limited partners generally cannot, without risking their liability shield.
• The general partner is personally exposed. Unlike an LLC member, a general partner in a bare LP is personally liable for partnership debts. This is why many modern LPs use an LLC or corporation as the general partner, so no human is left holding unlimited liability.
• The formation document is different. An LLC files a Certificate of Formation; a limited partnership files a Certificate of Limited Partnership.
• The governing contract is different. An LLC has an operating agreement; an LP has a limited partnership agreement.

For fund managers raising money from investors, the LP structure is often the expected, familiar shape. For a solo operator who simply wants liability protection, an LLC is usually simpler.

Delaware's reputation isn't marketing. It rests on concrete features that show up when things get complicated.

A specialized court and a modern statute

The Court of Chancery hears business disputes without juries, using judges who spend their careers on corporate and partnership law. Combined with DRULPA's explicit endorsement of "freedom of contract," this means the terms you negotiate in your limited partnership agreement are, within broad limits, the terms a Delaware court will enforce. The statute deliberately lets partners define their own economic and governance arrangements rather than forcing them into rigid defaults.

Privacy at the state level

The Certificate of Limited Partnership filed with Delaware is short. It does not list the limited partners, their contributions, or the internal economics of the deal. Those live in the private limited partnership agreement, which is never filed with the state. For investment vehicles that value confidentiality, this is meaningful.

Investor and lender familiarity

Venture funds, private equity, and institutional lenders have seen thousands of Delaware LPs. Choosing Delaware can shorten diligence and avoid the friction of explaining an unfamiliar home state.

The trade-offs to weigh

Delaware is not free of ongoing cost. Every domestic LP owes an annual tax to the state, due each June, whether or not the partnership earned anything. And if you actually operate the business somewhere else, you'll likely have to register as a foreign LP in that state too — meaning two sets of agents and two compliance calendars. Delaware makes the most sense when the entity is a holding, investment, or fund vehicle, or when investors specifically expect it.

Formation runs through the Delaware Division of Corporations, part of the Department of State. The single act that creates the LP is filing the Certificate of Limited Partnership.

What the certificate contains

The certificate is intentionally brief. It states:

• The name of the limited partnership, which must contain the words "Limited Partnership," or the abbreviation "L.P." or "LP"
• The name and address of the Delaware registered agent — the person or company authorized to receive legal process for the partnership at a physical Delaware address
• Any other matters the general partners choose to include

Notice what is absent: you do not disclose the limited partners, the capital they contributed, or how profits are split. Delaware keeps the public record thin on purpose.

The registered agent requirement

Every Delaware LP must continuously maintain a registered agent with a physical Delaware street address. The agent receives service of process and official state mail. The partnership cannot leave this slot empty — losing your agent puts the entity out of good standing.

Filing and timing

Certificates are submitted to the Division of Corporations, historically by fax or through its Document Upload Service, and can also be filed through the state's online business systems. Standard turnaround is measured in business days, and Delaware offers paid expedited tiers if you need same-day or faster handling. Once accepted, the LP legally exists, and its name is locked against later filers.

Bringing the LP to life is a one-time event. Keeping it in good standing is a recurring habit.

The annual tax

Delaware charges every domestic limited partnership a flat annual tax. Unlike corporations, LPs do not file an annual report with financial detail — there is a payment obligation, not a disclosure obligation. The tax is due by June 1 each year. Miss it and penalties plus interest accrue, and prolonged nonpayment can render the entity void.

Registered agent upkeep

Your Delaware registered agent must remain in place and reachable at a physical Delaware address for the life of the partnership. If the agent resigns, moves, or you switch providers, you file a change with the Division. An LP with no valid agent is out of compliance regardless of whether the annual tax is paid.

Keeping the agreement current

The limited partnership agreement isn't filed with the state, but it's the document that actually runs the business. As partners come and go, contributions change, or distribution terms are renegotiated, the agreement should be amended to match reality. A stale agreement is a common source of disputes.

Mainstay Filing prepares and submits the state paperwork so you're not deciphering the Division of Corporations' filing process on your own. You give us the details the state needs — the LP's name, the general partner information, and your choice of registered agent — and we prepare the Certificate of Limited Partnership, submit it to Delaware, and return the accepted document once the state processes it.

We include Delaware registered agent service, so a professional address sits in the public record instead of yours, and there's always someone available to receive legal process and forward state mail. After formation, we track your annual Delaware tax deadline so the June obligation doesn't slip past you.

What we don't do

We're a filing service, not a law firm or an accounting practice. We don't draft the economic terms of your limited partnership agreement, advise on how to allocate profits between general and limited partners, or provide tax planning. Those conversations belong with an attorney and a CPA. What we do is make the state-facing steps correct and timely, so you can focus on the deal itself.