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IRSPartnership & Fiduciary (1065/1041 Series)

Official form guide

Form 1065SB1: 1065 (Schedule B-1)

Form 1065 Schedule B‑1 is an attachment to the partnership return (Form 1065). It reports the partnership’s balance‑sheet items and other information required by the IRS.

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Form Overview

IRS Form 1065SB1 - 1065 (Schedule B-1)

Form 1065 Schedule B‑1 is an attachment to the partnership return (Form 1065). It reports the partnership’s balance‑sheet items and other information required by the IRS.

The schedule captures balance‑sheet totals, capital accounts, and any changes in partners’ ownership interests.

Risk Radar

Scan points
  • 1A single math error can delay the entire partnership return.
  • 2Transposed numbers cause balance‑sheet mismatches
  • 3Omitting a partner’s capital contribution or distribution
  • 4Using the wrong fiscal year end date
  • 5Failing to sign the attached Form 1065

Plain English

When a partnership files its annual tax return, it must also fill out Schedule B‑1 to show the partnership’s assets, liabilities, and equity at the end of the tax year. The schedule helps the IRS verify the partnership’s financial position.

Submission Date

  • Filing date: 2019-11-12 22:12:56
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

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What this form is for

  • Use when filing Form 1065 for a partnership.
  • Do not use for a single‑member LLC taxed as a disregarded entity.
  • Check Schedule K‑1 instructions if you need to report partner‑level details.

Form selector

Use this form or another form?

Partnership with foreign partners

Captures foreign partner info

Verify foreign partner status first

Schedule B‑2 (Form 1065)

Large partnership with >100 partners

Amended return

Ensure original Schedule B‑1 was filed

Form 1065‑X

Field map

Compact field-by-field guide

9 fields

Entity Info

2 items

Corporation Name and EIN

Full legal name of the corporation and its Employer Identification Number.

Requiredtext
Address and Date Incorporated

Current mailing address and date of incorporation.

Requiredtext

Income

3 items

Gross Receipts or Sales

Total revenue from business operations before deducting costs.

Requiredamount
Cost of Goods Sold

Direct costs attributable to producing goods sold by the corporation.

amount
Total Income

Gross receipts minus cost of goods sold and returns/allowances.

Requiredamount

Deductions

1 items

Total Deductions

Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.

Requiredamount

Tax

2 items

Taxable Income

Total income minus total deductions.

Requiredamount
Total Tax

Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.

Requiredamount

Signatures

1 items

Officer Signature

An authorized corporate officer must sign and date the return.

Requiredsignature
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Current form status
IRS

The most recent version of Schedule B‑1 is tied to the 2023 Form 1065 package. Check the IRS website for any updates before filing.

What changed or needs a fresh check

  • Edition date – verify the schedule is from the current tax year
  • Fee – no separate fee; included with Form 1065 filing
  • Mailing address – use the address listed in{title
  • :

Quick Facts

All domestic partnerships filing Form 1065 must include Schedule B‑1.
The schedule captures balance‑sheet totals, capital accounts, and any changes in partners’ ownership interests.
Schedule B‑1 is filed with the partnership’s Form 1065 by the return’s due date, typically March 15 for calendar‑year partnerships (or the extended deadline).
Submit the completed Schedule B‑1 together with Form 1065 either electronically through the IRS e‑file system or by mail to the address specified in the Form 1065 instructions.
Errors on Schedule B‑1 can trigger IRS notices, delay processing, or lead to penalties for inaccurate balance‑sheet reporting.
Gather the partnership’s year‑end trial balance, reconcile capital accounts, and fill in each line of Schedule B‑1. Review totals against the partnership’s books, sign the return, and attach the schedule before e‑filing or mailing. Keep a copy of the supporting trial balance for your records.

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Source transparency

Copyright & Licensing - US Government Forms

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Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
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