What is Disregarded Entity?

How it works

"Disregarded entity" is a federal income-tax classification, not a state-law concept. The IRS uses it to describe an entity that legally exists (it has a state filing, an EIN, limited-liability protection, banking relationships) but is ignored for federal income tax — its activity flows through to its owner as if the owner had performed it directly.

The default candidates for disregarded status under the check-the-box regulations:

• Single-member LLCs (the most common case).
• Single-member US-organised entities that are not statutory corporations.
• Foreign single-member entities that elect disregarded status via Form 8832.
• Qualified subchapter S subsidiaries (QSubs) of S corporations.

A disregarded entity is taxed as the owner. If the owner is:

• A US individual → activity on Schedule C / E / F of Form 1040.
• A US corporation → activity consolidated into the corporation's Form 1120.
• A foreign individual → only US-source income / ECI taxable on Form 1040-NR.
• A foreign corporation → only US-source income / ECI taxable on Form 1120-F.

What "disregarded" doesn't mean

The entity exists for almost every other purpose:

• State law: Real entity. Limited liability, capacity to sue and be sued, separate balance sheet.
• Employment tax: Separate. The LLC withholds employment tax in its own name with its own EIN — under final 2007 Treasury regulations, the LLC is the employer for FICA / FUTA, not the owner.
• Excise taxes: Separate.
• Information reporting: Separate. The disregarded entity files Form 5472 (foreign-owned), files 1099s issued to vendors in its name, gets 1099s issued to it, etc.
• Banking and KYC: Separate. Mercury, Brex, Wise, Stripe all see the LLC as the customer, not the owner.

Examples

• US freelancer's Wyoming LLC. Single-member, owned by a US citizen. Federal income tax: pass-through on Schedule C of the owner's 1040. The LLC has its own EIN for banking and 1099 issuance, but doesn't file an income tax return of its own.
• Foreign-owned Delaware single-member LLC. Foreign founder, no US trade or business. Federal income tax: $0 (no US-source income to flow through). Federal compliance: Form 5472 with a pro-forma 1120 every year, Schedule M reporting capital contributions, distributions, and any related-party transactions.

Common mistakes

• Assuming "disregarded = no IRS contact". Foreign-owned disregarded LLCs are the IRS's biggest enforcement gap-fill: the Form 5472 regime exists specifically to make these LLCs visible.
• Treating disregarded for income tax as disregarded for everything. Employment tax, excise tax, and state taxes have their own rules. The LLC handles them as a separate entity even when federal income tax flows through.
• Adding a second member. Disregarded status ends instantly. The entity becomes a partnership for federal tax (Form 1065), with no transition election needed — the IRS just expects the new filing pattern from the conversion date.
• Mismatching the W-9 / W-8. A US-owned SMLLC files W-9 in the owner's name and SSN/EIN, not the LLC's EIN. A foreign-owned SMLLC's owner files W-8BEN — the LLC itself files nothing on the W-8 side. Mis-routing this turns a 0% structure into 30% backup withholding.