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Form 1065SB1: 1065 (Schedule B-1)
IRS Form 1065 (Schedule B-1) is used to provide information on partners owning 50% or more of a partnership. This form must be attached to Form 1065 and covers entities/individuals meeting the 50% ownership threshold.
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IRS Form 1065SB1 - 1065 (Schedule B-1)
IRS Form 1065 (Schedule B-1) is used to provide information on partners owning 50% or more of a partnership. This form must be attached to Form 1065 and covers entities/individuals meeting the 50% ownership threshold.
Risk Radar
Scan points- 1Ensure you list the parent corporation instead of subsidiaries when filing a consolidated tax return in Part I.
- 2Failing to attach Schedule B-1 (Form 1065) to the main Form 1065.
- 3Listing a disregarded entity instead of its owner when Part I requires it.
- 4Not listing an individual in Part II even if they own indirectly via another entity.
- 5Incorrectly identifying the country of organization for entities in Part I.
Plain English
This form tells the IRS exactly who owns a significant stake in your partnership, which is required if that ownership reaches 50% or more. It details whether the owner is a corporation, an individual, or another type of entity. Partnerships must complete this to show their major financial backers.
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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What this form is for
- Use this form when a partnership must provide information on entities or individuals owning, directly or indirectly, an interest of 50% or more in its profit, loss, or capital.
- Do not use this form if the ownership threshold is less than 50% or greater than 100%, as the source focuses specifically on the 50% mark.
- Check Form 1065 (Schedule B) first when determining if you must file Schedule B-1.
Form selector
Use this form or another form?
Foreign Government Owner
The entity is a foreign government, and it owns 50% or more in the partnership.
✓ Verify country of organization.
Individual Owner (Estate)
An individual estate owns 50% or more, requiring the estate's citizenship to be listed.
✓ Ensure you use the decedent's citizenship.
Disregarded Entity Owner is an Individual
The owner is not a corporation/trust but an individual, so list them in Part II instead of Part I.
✓ Confirm the entity type before choosing Part I or Part II.
Deadline or filing window
The partnership must complete Schedule B-1 (Form 1065) at the end of the tax year. The form is attached to Form 1065, and no specific extension timeframe is provided in this excerpt for submission deadlines.
Checklist
What you need before filling it out
Overall Purpose
Partnership/Owner details · Part I & Part II
Part I Entity Name
Corporation, partnership, trust, tax-exempt organization, or foreign government name · Column (i)
Part I EIN
Employer Identification Number · Column (ii)
Part II Individual Name
Individual's full name · Column (i)
Part II Citizenship
Country of citizenship · Column (iii)
Ownership Percentage
Maximum percentage owned in profit, loss, or capital · Column (v) [Part I] / Column (iv) [Part II]
Before you submit
- 1Confirm the revision date reads August 2019.
- 2Ensure you have completed Part I if the partnership answered 'Yes' to Form 1065, Schedule B, question 2a.
- 3If listing a disregarded entity owner in Part I, ensure that owner is not an individual (if it were an individual, list them in Part II).
- 4For Part II entries, verify the country listed under Column (iii) matches the citizenship of the person or the decedent for an estate.
- 5Confirm all entities/individuals listed own a direct or indirect interest of 50% or more.
- 6Ensure you have properly calculated and entered the Maximum Percentage Owned in profit, loss, or capital in Columns (v) or (iv).
- 7Verify that Part I is completed if any foreign government owns an interest.
How to file this form
- 1Determine which part to complete by checking Form 1065, Schedule B: Complete Part I if the answer to question 2a was 'Yes', or Part II if the answer to question 2b was 'Yes'.
- 2For each owner meeting the threshold, accurately enter their details into the appropriate columns (i) through (v) in Part I or (i) through (iv) in Part II.
- 3Attach the completed Schedule B-1 (Form 1065) to Form 1065 before mailing it.
- 4Keep a copy of the signed and dated Schedule B-1 for your partnership's records.
Known limitations
- 1Part I applies to foreign or domestic corporations, partnerships (including any entity treated as a partnership), trusts, tax-exempt organizations, or foreign governments that own 50% or more of the profit, loss, or capital.
- 2Part II applies to individuals or estates that own 50% or more of the profit, loss, or capital.
- 3For an affiliated group filing a consolidated tax return in Part I, the parent corporation must be listed instead of subsidiary members.
- 4If the owner of a disregarded entity is an individual rather than an entity, that individual must be listed in Part II.
Field map
Compact field-by-field guide
Entity Info
2 items
Full legal name of the corporation and its Employer Identification Number.
Current mailing address and date of incorporation.
Income
3 items
Total revenue from business operations before deducting costs.
Direct costs attributable to producing goods sold by the corporation.
Gross receipts minus cost of goods sold and returns/allowances.
Deductions
1 items
Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.
Tax
2 items
Total income minus total deductions.
Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.
Signatures
1 items
An authorized corporate officer must sign and date the return.
Almost done reviewing the fields?
Fillable formOpen in Editor->The current edition is Revision August 2019 (Rev. 8-2019). The form directs users to www.irs.gov/Form1065 for the latest information regarding Schedule B-1.
What changed or needs a fresh check
- Edition date — confirm the revision reads August 2019 (Rev. 8-2019).
- OMB Number — confirm it is 1545-0123.
- Attachment requirement — confirm you are attaching Schedule B-1 to Form 1065.
- Part I required when — the partnership answered 'Yes' to Form 1065, Schedule B, question 2a (or 3a for prior years).
- Part II required when — the partnership answered 'Yes' to Form 1065, Schedule B, question 2b (or 3b for prior years).
Quick Facts
Downloads
After you file
- 1Keep a copy of the completed Schedule B-1 (Form 1065).
- 2Ensure the form is attached to Form 1065 when filing.
- 3Confirm that the revision date on the form reads August 2019 (Rev. 8-2019).
- 4Check www.irs.gov/Form1065 for any future developments related to Schedule B-1 (Form 1065).
Sources
- SRCInstructions p.2 — Schedule B-1 (Form 1065) must be filed by all partnerships that answer “Yes” to question 2a or question 2b on Form 1065, Schedule B.
- SRCInstructions p.2 — Part I is completed if the partnership answered “Yes” to Form 1065, Schedule B, question 2a (question 3a for 2009 through 2017).
- SRCInstructions p.2 — Part II is completed if the partnership answered “Yes” to Form 1065, Schedule B, question 2b (question 3b for 2009 through 2017).
- SRCInstructions p.2 — For Part I, list each corporation, partnership, trust, tax-exempt organization, or foreign government owning, directly or indirectly, an interest of 50% or more.
- SRCForm p.1 — Part II requires the country of citizenship for individuals or estates listed in Part II (column iii).
- SRCInstructions p.2 — For Part I, when listing a tax-exempt organization, enter “tax-exempt organization” in column (iii).
Common confusion points
Who fills out Part I?
A partnership must complete Part I if it answered 'Yes' to question 2a on Form 1065, Schedule B.
→ Check the answer to Question 2a on your Form 1065.
What goes in Part II for an entity owner?
If the owner of a disregarded entity is an individual, list that individual in Part II instead of listing the disregarded entity itself.
→ Verify if the owner of the disregarded entity is an individual or another entity.
When do you use Part I vs. Part II?
Use Part I for corporate/trust owners and Part II for individual/estate owners who own 50% or more.
→ Determine the legal status of the 50%+ owner to select the correct part.
How is indirect ownership calculated in Part I?
If an entity owns interest A directly, and another entity owns interest B indirectly through A, you must calculate the total direct or indirect interest (e.g., 15% direct + 35% indirect = 50% for Partnership C).
→ Review the example provided on Form 1065, Schedule B-1 to ensure calculation accuracy.
What is the 'Identifying Number' in Part II?
For individuals or estates listed in Part II, this field requires a social security number or an employer identification number.
→ Check if the owner has an SSN or EIN to populate column (ii) of Part II.
Does every entity need an EIN in Part I?
No; column (ii), Employer Identification Number, is optional for entities listed in Part I.
→ If you are unsure about an entity's EIN, verify it on the IRS website.
Workflow map
Related forms and next steps
Current
⚠ If something goes wrong
- Go to www.irs.gov/Form1065 — This provides general information and instructions related to Form 1065.
Questions about IRS Form 1065SB1
What is IRS Form 1065SB1 used for?
This form tells the IRS exactly who owns a significant stake in your partnership, which is required if that ownership reaches 50% or more. It details whether the owner is a corporation, an individual, or another type of entity. Partnerships must complete this to show their major financial backers.
Who must file IRS Form 1065SB1?
All partnerships must file Schedule B-1 (Form 1065) if they answer “Yes” to question 2a or question 2b on Form 1065, Schedule B.
What information does IRS Form 1065SB1 require?
Part I identifies entities like corporations and trusts that own 50% or more; Part II lists individuals or estates meeting the same ownership threshold. Both parts require entering names, identification numbers, and maximum percentage owned.
When is IRS Form 1065SB1 due?
The form must be completed by the partnership at the end of the tax year it is reporting on. No specific filing deadline date is listed in the source excerpt for submission.
Where do I file IRS Form 1065SB1?
Schedule B-1 (Form 1065) must be attached to Form 1065 itself. For the latest information, refer to www.irs.gov/Form1065.
How do I complete IRS Form 1065SB1?
A partnership must first determine if any owners meet the 50% threshold. If so, they complete Part I (for entities) and/or Part II (for individuals/estates). The completed Schedule B-1 (Form 1065) is then attached to Form 1065.
What happens if IRS Form 1065SB1 is filed incorrectly?
The source does not specify a penalty for incorrect filing of Schedule B-1 (Form 1065), but it requires completion for partnerships that answer “Yes” to questions 2a or 2b on Form 1065, Schedule B.
Who fills out Part I?
A partnership must complete Part I if it answered 'Yes' to question 2a on Form 1065, Schedule B. Check the answer to Question 2a on your Form 1065.
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