Schedule B-1 (Form 1120-S): Information on Certain Shareholders of an S Corporation

Schedule B-1 (Form 1120-S) is Information on Certain Shareholders of an S Corporation. The instructions say to use it to provide the information applicable to any shareholder in the S corporation that was a disregarded entity, a trust, an estate, or a nominee or similar person at any time during the tax year.

The S corporation completes the schedule and attaches it to Form 1120-S. It is not filed by the shareholders themselves. The instructions say all S corporations that answer Yes to Form 1120-S, Schedule B, question 3 file it. The schedule has one table and its instructions are printed on page 2 of the same PDF.

You can fill out Schedule B-1 (Form 1120-S) free in your browser on this page and download it without an account.

What's on Schedule B-1 (Form 1120-S)

Header

The name of the corporation and its employer identification number.

Column (a)

Name of shareholder of record: the disregarded entity, trust, estate, nominee or similar person.

Column (b)

The Social Security number (SSN) or employer identification number (EIN), if any, of the shareholder of record.

Column (c)

Type of shareholder of record, such as disregarded entity, trust, estate, nominee, guardian, custodian or agent.

Column (d)

Name and SSN or EIN, if any, of the individual or entity responsible for reporting the shareholder's income, deductions, credits, etc., from Schedule K-1.

How to fill out Schedule B-1 (Form 1120-S)

1
Column (a)
Enter the name of the shareholder of record. The instructions say that for a disregarded entity this is the entity's name, and for a nominee or similar person it is the nominee's name.
2
Columns (b) and (c)
Enter the shareholder of record's SSN or EIN, if any, and its type, for example disregarded entity, trust, estate, nominee, guardian, custodian or agent.
3
Column (d) for a disregarded entity
Enter the name and SSN or EIN, if any, of the owner. For a single member LLC treated as a disregarded entity, the instructions say this is the member.
4
Column (d) for a trust
It depends on the type of trust. A grantor trust lists the grantor, a QSST lists its individual beneficiary, and an ESBT repeats columns (a) and (b) with no beneficiary information.
5
Column (d) for an estate
The instructions say to enter the information from columns (a) and (b) and not to enter any beneficiary information.

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How it is filed

Attach to Form 1120-S

The schedule says to attach it to Form 1120-S. It prints no separate due date or mailing address.

Linked to Schedule B, question 3

The table heading points to Form 1120-S, Schedule B, Question 3, and the instructions tie filing to a Yes answer there.

Even if shown on Schedule K-1

The instructions say to provide the information even when the owner's or the beneficial holder's name, address, and SSN or EIN were already entered on Schedule K-1 (Form 1120-S).

Latest information

The schedule points to www.irs.gov/Form1120S for the latest information. The Paperwork Reduction Act Notice is in the Instructions for Form 1120-S.

Who files Schedule B-1 (Form 1120-S)?

S corporations answering Yes
The instructions say Schedule B-1 is filed by all S corporations that answer Yes to Form 1120-S, Schedule B, question 3, and is attached to Form 1120-S.
Disregarded entity shareholders
For example, a single member LLC that did not elect to be taxed as a corporation. The instructions say to give the information even if the owner was entered on Schedule K-1 (Form 1120-S).
Trusts and estates
Shareholders of record that are a grantor trust, a qualified subchapter S trust (QSST), an electing small business trust (ESBT) or an estate.
Nominees and similar persons
A nominee, guardian, custodian, or agent who holds stock for someone else. The instructions say to give the information even if the person for whom the stock was held was entered on Schedule K-1.

The S corporation files it with its return. The shareholders listed on it do not file it.

Official sources and the blank

Official IRS form page
The agency’s own page for Form 1120-S Sch. B-1.
Official instructions
How the IRS says to fill out and file Form 1120-S Sch. B-1.
Blank PDF
The official blank form, to print or fill by hand.

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Questions about Form 1120-S Sch. B-1

Who files Schedule B-1 (Form 1120-S)?

The instructions say all S corporations that answer Yes to Form 1120-S, Schedule B, question 3. The S corporation attaches it to its Form 1120-S.

Which shareholders go on it?

Any shareholder that was a disregarded entity, a trust, an estate, or a nominee or similar person at any time during the tax year.

Do I still list a shareholder already on Schedule K-1?

Yes. The instructions say to provide the information even if the owner or the person for whom the stock was held was entered on Schedule K-1 (Form 1120-S).

What goes in column (d) for an ESBT?

The instructions say to enter the information from columns (a) and (b) and not to enter any beneficiary information.

Where are the instructions?

They are printed on page 2 of the Schedule B-1 PDF. The About Form 1120-S page lists no separate instructions for Schedule B-1.

Schedule B-1 (Form 1120-S): Information on Certain Shareholders of an S Corporation