How Is an LLC Taxed? Classification Options Explained

What are the four ways an LLC can be taxed?

The IRS does not recognise LLC as a tax category. It assigns each LLC one of four existing treatments, two by default and two by election.

A single-member LLC is by default a disregarded entity: the IRS looks through it and the owner reports the business activity on their own return, typically on Schedule C for a US owner. A multi-member LLC is by default a partnership, filing Form 1065 and issuing each member a Schedule K-1 for their share.

Either can elect to be taxed as an S corporation by filing Form 2553, or as a C corporation by filing Form 8832. Neither election changes the legal entity - your company remains an LLC formed under state law, with the same liability protection and the same name.

• Disregarded entity - default for one member.
• Partnership (Form 1065) - default for two or more members.
• S corporation (Form 2553 election) - reduces self-employment tax at higher profit.
• C corporation (Form 8832 election) - separate taxation, rarely chosen by small LLCs.

How is a single-member LLC taxed?

By default it is disregarded. For a US owner that generally means reporting business income and expenses on Schedule C attached to the personal return, with net profit subject to both income tax and self-employment tax.

Self-employment tax is the part people underestimate. It covers Social Security and Medicare on business profit, and it applies on top of income tax. It is the single largest tax cost for many profitable one-person LLCs and the reason the S-corporation election exists.

There are usually quarterly estimated tax payments to make during the year, because no employer is withholding on your behalf. Discovering that obligation in April rather than the previous June is a common and avoidable source of penalties.

How is a multi-member LLC taxed?

By default as a partnership. The LLC files Form 1065, an information return reporting the business's income and deductions, and issues each member a Schedule K-1 showing their share. The LLC itself generally pays no federal income tax; each member reports their K-1 share on their own return.

Profit shares do not have to match ownership percentages if the operating agreement provides otherwise and the allocation has substantial economic effect - one of several reasons a multi-member LLC benefits from a properly drafted agreement rather than a template.

Foreign partners complicate this significantly. A partnership with a foreign partner can face withholding obligations under sections 1446 and related rules, with separate forms and deadlines. If any member is a non-US person, treat the partnership return as professional work rather than a DIY filing.

When should an LLC elect S-corporation treatment?

The S-corporation election exists to reduce self-employment tax. Instead of all profit being subject to it, the owner takes a reasonable salary through payroll - which bears payroll taxes - and remaining profit can be distributed without self-employment tax.

The saving only appears above a certain profit level, because the election creates real costs: running payroll, filing a separate corporate return, and paying an accountant to maintain it. Below the point where those costs exceed the tax saved, the election loses money.

Reasonable salary is where it goes wrong. Paying yourself an implausibly low salary to convert profit into distributions is a known audit target and the IRS can reclassify. There are also eligibility limits - S corporations generally cannot have non-resident alien shareholders, which rules the election out for most non-resident founders entirely.

How are foreign-owned LLCs taxed?

Separate the two questions or the answer becomes impossible. Whether the US taxes your profit is decided by effectively connected income. Whether you must file is decided by different rules with different consequences.

A non-resident performing services entirely from abroad, with no US office, no US employees, no dependent agent and no US inventory, frequently has no effectively connected income and therefore no US federal income tax on that profit. That is the real basis for the widely repeated claim about low US tax - not a loophole, just how the source rules work.

The filing obligation survives regardless. A foreign-owned single-member LLC generally files Form 5472 attached to a pro forma Form 1120 for every year it has a reportable transaction, and capitalising the company or paying its formation fee counts as one. The failure-to-file penalty starts at $25,000 and applies to dormant companies. Your country of residence very likely taxes the same income too.

• No US income tax is not the same as no US filing.
• US inventory or staff can create effectively connected income and real tax.
• S-corp election is generally unavailable to non-resident alien owners.