A limited partnership and an LLP solve different problems. A limited partnership splits owners into two classes: general partners who run the business and carry unlimited personal liability, and limited partners who put up money and risk nothing beyond that investment. An LLP keeps every partner on equal footing, giving each one a say in management and shielding each from personal liability for the other partners’ professional mistakes. If you need a manager-investor hierarchy, an LP fits. If everyone practices and shares control, an LLP fits.
Who Runs the Business
In an LP, general partners handle operations: hiring, signing contracts, managing assets, setting strategy. Limited partners supply capital and traditionally stay out of the day-to-day. The structure is built for a small group of operators funded by a larger group of passive investors.
Under the Uniform Limited Partnership Act of 2001, a limited partner can take part in management without losing liability protection.1ULPA. Uniform Limited Partnership Act (2001) – Section 303 The architecture still assumes a general partner at the controls, though, so a limited partner who wants real authority is usually better off in a different entity type.
An LLP distributes management authority evenly. Every partner has the right to participate in running the business, and default rules give each partner one equal vote on ordinary decisions, counted per partner rather than by ownership percentage. Anything outside the ordinary course requires unanimous consent unless the partnership agreement sets a different threshold.2Federal Litigation. Uniform Partnership Act (1997) – Section 401 That flat structure is why LLPs dominate professional services. A law firm or accounting practice needs every partner able to supervise staff, manage clients, and exercise professional judgment without clearing it through a single boss. Firms still create managing committees or lead-partner roles through the agreement, but equality is the starting point.
Who’s Personally on the Hook
General partners in an LP carry unlimited personal liability for partnership debts. If the business can’t pay a creditor or loses a lawsuit, those creditors can reach a general partner’s personal bank accounts, home, and other assets. That exposure is the price of operational control.
Limited partners risk only what they invested or pledged in the partnership agreement. Under ULPA 2001 that protection holds even if the limited partner gets involved in management.1ULPA. Uniform Limited Partnership Act (2001) – Section 303 A handful of states still operate under older versions of the act where the old “control rule” survives and a too-involved limited partner can lose the shield, so it’s worth confirming which version your state has adopted.
An LLP works differently. It shields each partner from personal liability for the negligence, malpractice, or misconduct of the other partners. If your partner botches a case and the firm gets sued, your personal savings and property stay protected. The partnership itself remains liable, but the claim can’t reach your assets for someone else’s mistake.
The shield does not cover your own errors. If you commit malpractice, you’re personally liable for that claim regardless of the LLP. The same goes for any wrongful act you personally commit or directly supervise. The LLP protects you from your colleagues, not from yourself.
States also split on how far the shield extends. A minority follow a partial-shield model that protects partners only from tort claims arising from other partners’ conduct, leaving them exposed to the partnership’s general contract debts. The majority apply a full shield that insulates partners from nearly all partnership obligations. Check which model your state uses before you form.
How Each Is Taxed
Both are pass-through entities for federal income tax. The partnership itself pays no income tax.3Office of the Law Revision Counsel. 26 USC 701 – Partners, Not Partnership, Subject to Tax Each partner reports a distributive share of the partnership’s income, deductions, gains, and losses on a personal return.4Office of the Law Revision Counsel. 26 USC 702 – Income and Credits of Partner The partnership files an informational Form 1065 and issues each partner a Schedule K-1.5Internal Revenue Service. Partnerships For calendar-year partnerships, Form 1065 is due March 15, with an automatic six-month extension available.6Internal Revenue Service. Publication 509 (2026), Tax Calendars
The real tax difference between the two is self-employment tax. A limited partner’s distributive share is excluded from self-employment tax (Social Security and Medicare), except for guaranteed payments received for services actually rendered to the partnership.7Office of the Law Revision Counsel. 26 USC 1402 – Definitions Partners in an LLP don’t qualify for that exclusion. They aren’t “limited partners” in the statutory sense; they’re partners in a general partnership that has elected LLP status. The combined self-employment tax rate is 15.3% on earnings up to the Social Security wage base, so for a higher-earning limited partner the gap compared to an LLP partner with equivalent income can run into thousands of dollars a year.
Which One Fits Your Situation
LPs are the standard vehicle for investment-oriented ventures where a small team raises capital from passive backers. Real estate syndications, private equity and venture capital funds, family estate planning vehicles, and film projects all use the structure. It cleanly separates the people making decisions from the people providing money, and the self-employment tax exclusion for limited partners makes it attractive for investment income.
LLPs are built for professional service firms where every partner actively practices. Law firms, accounting practices, architecture firms, and medical groups are the most common users. Each partner gets malpractice protection against colleagues’ errors while keeping the authority they need to serve clients.
Eligibility is one more thing to check. Some states restrict LLP formation to licensed professionals, meaning only firms providing services like law, accounting, architecture, medicine, or engineering can organize as LLPs. Other states let any business elect LLP status. LPs are available to any business in every state.
What It Takes to Form Each One
An LP comes into existence by filing a certificate of limited partnership with the state, usually through the Secretary of State’s office. The certificate names the partnership (with an “LP” or “L.P.” designation), identifies the registered agent for service of process, and gives the principal office address.
An LLP forms by filing a statement of qualification. The required contents include the partnership’s name, the street address of its principal office, the name and address of an agent for service of process if the partnership has no in-state office, and a statement electing LLP status.8Federal Litigation. Uniform Partnership Act (1997) – Section 1001 The name must include “LLP” or “L.L.P.” so third parties know what they’re dealing with. A few states also require newly formed LLPs to publish notice in a local newspaper. Filing fees vary but generally run from $50 to $500 depending on state and entity type, and most states offer online filing.
The public filing is a bare-bones document. The real governance lives in the partnership agreement, which is private and far more detailed. The agreement should spell out how profits and losses are allocated, how much each partner contributes and whether more can be required, which decisions need a simple majority, a supermajority, or unanimous consent, what happens when a partner leaves or dies and how that interest gets valued, and how the partnership winds down if the partners decide to end it. Skipping the agreement, or relying on a generic template, is where most partnership disputes start. State default rules fill the gaps, and those defaults often produce results nobody intended. An LP agreement should clearly define the scope of the general partner’s authority and any rights reserved to limited partners. An LLP agreement should establish how management is shared and what happens if a partner’s professional license is revoked.
Keeping the Entity Alive
Both entities carry continuing obligations. The partnership must file Form 1065 with the IRS each year and deliver Schedule K-1s to every partner by the filing deadline.5Internal Revenue Service. Partnerships Most states also require annual or biennial reports filed with the Secretary of State, with fees and deadlines that vary by jurisdiction. Missing these filings can trigger late fees, administrative dissolution, or loss of limited liability protection.
LLPs in some states must renew the statement of qualification each year to keep LLP status. Letting the renewal lapse can quietly convert the LLP back into a general partnership and strip every partner of the liability shield. It’s the kind of administrative detail that slips past firms without dedicated compliance staff.
Some states also charge an annual franchise tax or flat fee on partnerships regardless of income. The amounts vary, and a few base the fee on partner count or partnership income. Check your state’s requirements before forming so those recurring costs are built into your planning.
Side-by-Side Comparison
- Management: An LP splits control between active general partners and passive limited partners. An LLP gives every partner equal management rights by default.
- Personal liability: LP general partners have unlimited liability; limited partners risk only their investment. LLP partners are shielded from each other’s malpractice but remain liable for their own.
- Self-employment tax: LP limited partners generally exclude their distributive share from self-employment tax. LLP partners owe self-employment tax on their full share.7Office of the Law Revision Counsel. 26 USC 1402 – Definitions
- Best fit: LPs work for investment vehicles with passive capital and active managers. LLPs work for professional firms where every partner practices.
- Formation filing: An LP files a certificate of limited partnership. An LLP files a statement of qualification.
- Eligibility: LPs are available to any business in every state. Some states restrict LLP formation to licensed professional service firms.