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Best LLC Formation Services for Startups

A startup with co-founders is a multi-member LLC by default, which the IRS requires to obtain its own EIN regardless of employees, and forming it needs the same registered agent every LLC needs. Founders who form in Delaware for its well-established business court system still owe Delaware's flat $400 annual LLC tax regardless of income, and if the business actually operates in a different state, that state's own foreign qualification fee and registered agent requirement apply on top of Delaware's.

By LLC Register · Last reviewed October 5, 2026

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Key Takeaways

  • A multi-founder startup is a multi-member LLC by default

    The IRS requires any LLC with more than one member to obtain its own EIN regardless of whether it has employees, and taxes it as a partnership by default unless the founders elect otherwise.

  • Delaware charges a flat $400 annual tax regardless of income

    A Delaware LLC owes no annual report fee but does owe a flat $400 annual LLC tax every year, due June 1, whether or not the business has any revenue yet.

  • Forming in Delaware doesn't exempt you from your home state's rules

    If the startup actually operates in a different state, that state generally requires foreign qualification, with its own fee and its own registered agent, on top of Delaware's requirements.

  • An LLC and a C corporation are not the same choice

    Many venture-backed startups eventually convert to or form as a C corporation instead of an LLC, since most institutional investors are structured to invest in stock, not LLC membership interests.

  • An EIN is needed early regardless of structure

    An EIN is required to open a startup bank account and, for a multi-member LLC, is required by the IRS outright; it is always free directly from irs.gov.

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In this article
  • Comprehensive Guide
  • Practical Considerations

Comprehensive Guide

Why Startups Often Ask This Question Differently

A startup comparing LLC formation services usually has a few needs that differ from a typical small business: multiple founders from day one, a decision about whether to form in Delaware or the state where the business actually operates, and, for some startups, an eventual plan to raise institutional investment, which changes what entity type makes sense. Comparing providers for a startup means weighing these specific questions, not just the headline formation price.

Co-Founders Make It a Multi-Member LLC

Any startup with more than one founder as an owner is, by definition, a multi-member LLC, which the IRS requires to obtain its own EIN regardless of whether it has employees, since it is taxed as a partnership by default. This is different from a solo founder's LLC, which can sometimes operate without an EIN at all. A formation service's EIN-filing add-on, where purchased, handles this required filing; the EIN itself is always free directly from the IRS.

The Delaware Question

Many startups consider forming in Delaware specifically because of its well-established body of business case law and specialized Court of Chancery, a consideration that matters more for startups planning to raise institutional investment than for most small businesses. Forming in Delaware comes with a specific, fixed cost that is easy to overlook: a flat $400 annual LLC tax, due each June 1, regardless of the LLC's income. Delaware charges no separate annual report fee for an LLC, but this tax applies every year the LLC exists in Delaware, whether or not the business has started generating revenue.

Delaware Formation Doesn't Replace Your Home State's Requirements

Forming in Delaware does not exempt a startup from its home state's rules if the business actually operates, has employees, or has a physical presence elsewhere. In that case, the home state generally requires foreign qualification, its own fee (ranging from about $70 in California to $750 in Texas) and its own registered agent with an in-state address, in addition to Delaware's requirements. A founder considering Delaware specifically to save money should compare the combined Delaware-plus-home-state cost against simply forming in the home state directly, rather than assuming Delaware is automatically cheaper or simpler.

LLC vs. C Corporation for a Venture-Backed Startup

An LLC and a C corporation are different legal structures with different tax treatment, and the choice matters more for a startup than for many small businesses. Most institutional venture investors are structured to invest in exchange for stock, which an LLC does not issue; many venture-track startups therefore form as, or later convert to, a Delaware C corporation rather than remaining an LLC. A founder unsure whether their startup will raise institutional investment should weigh this decision with a business attorney before defaulting to an LLC purely because it is simpler to form initially.

What a Formation Service Can and Can't Decide for You

A formation service can file whichever entity you choose and can provide a registered agent in whatever state or states you need one, but it cannot tell you whether an LLC or a C corporation better fits your specific fundraising plans, or whether Delaware formation makes sense given where you actually operate. These are planning decisions to make before choosing a provider, not features to compare between providers.

How LLC Register compares

LLC Register charges $99 a year, the same price at renewal, with LLC formation in year one and annual report filing included, in any state where it operates, including as a foreign-qualification registered agent if the startup is formed elsewhere. Most other providers charge $99 to $199 a year extra for a separate annual report filing service. State fees, including Delaware's franchise and foreign qualification fees where applicable, are passed through at cost.

A Practical Starting Checklist

Before choosing a formation service, a startup should settle whether it plans to raise institutional investment (which affects the LLC-vs-C-corporation decision), where it will actually operate (which affects whether Delaware formation requires a second, home-state registration), and how many founders will be members at formation (which determines whether an EIN is required outright under IRS rules).

Practical Considerations

Converting Later Is Possible, but Not Free

A startup that forms as an LLC and later decides to convert to a C corporation can generally do so, but the conversion itself involves its own filing, fee, and legal structuring, which is more complex and costly than choosing the right entity at the outset when the choice is already clear.

Equity Compensation Works Differently in an LLC

Issuing equity-like compensation to early employees works differently in an LLC (often through profits interests) than in a corporation (through stock options), with different tax treatment. This is a structuring decision for a tax professional and business attorney, not a default feature of any formation service.

Delaware's $400 Tax Is Owed Even Pre-Revenue

A pre-revenue startup still owes Delaware's flat $400 annual LLC tax if formed there, which is worth budgeting for separately from any registered agent or formation service fee.

Multiple Founders Should Settle Ownership Terms Early

As a multi-member LLC, a startup with co-founders benefits from a clear, written operating agreement covering ownership percentage, vesting, and what happens if a founder leaves, ideally agreed on before any dispute arises.

Not Legal or Tax Advice

Whether to form as an LLC or a corporation, and where, depends on your specific fundraising plans and operations. Talk to a business attorney experienced with startups and a tax professional before finalizing entity choice and state of formation.

Related Resources

  • Best LLC Formation Services for Non-U.S. Residents

    Learn which LLC formation services handle an EIN without a Social Security number and the registered agent a non-U.S. resident still needs.

  • Best LLC Formation Services for Fast State Filing

    Learn which LLC formation services publish the fastest processing times, and how a state's own expedited-filing fee compares to a provider's rush fee.

  • How to Form an LLC for a Startup

    Learn how to form an LLC for a startup, including when an LLC fits better than a C corporation, founder agreements, and equity.

Sources

The official sources used for this article.

Delaware Division of Corporations: Fee schedule

corpfiles.delaware.gov/Fee_Schedule/AugustFee2026.pdf

IRS: About Form 1065, U.S. Return of Partnership Income

irs.gov/forms-pubs/about-form-1065

IRS: Apply for an EIN online

irs.gov/businesses/small-businesses-self-employed/apply-for-an-employer-identification-number-ein-online

California Secretary of State: Form LLC-5 (foreign LLC registration)

bpd.cdn.sos.ca.gov/llc/forms/llc-5.pdf

Created by: LLC RegisterLast reviewed October 5, 2026

Updated: October 5, 2026

Frequently Asked Questions

Does a startup with co-founders need an EIN?

Yes, required. Any LLC with more than one member must obtain its own EIN from the IRS regardless of whether it has employees, since it is taxed as a partnership by default.

Does forming in Delaware cost anything beyond the formation fee?

Yes. A Delaware LLC owes a flat $400 annual LLC tax every year, due June 1, regardless of income, in addition to its initial formation fee.

If I form in Delaware, do I still need to register in the state where my startup actually operates?

Usually yes. If the business has a physical presence, employees, or regularly transacts business in a different state, that state generally requires foreign qualification, with its own fee and registered agent, on top of Delaware's requirements.

Should a venture-backed startup form as an LLC or a C corporation?

This depends on fundraising plans. Most institutional venture investors are structured to invest in stock, which an LLC does not issue, so many venture-track startups form as, or later convert to, a C corporation instead of remaining an LLC.

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