What is the purpose of Schedule B-1 on Form 1065?

Schedule B-1 reports owners who have a 50% or greater interest in a partnership’s profit, loss, or capital. It helps the IRS track significant ownership stakes.

Do I need to file Schedule B-1 if no partner owns 50% or more?

If no individual, estate, or entity meets the 50% threshold, you can leave Schedule B-1 blank, but the schedule must still be attached to the Form 1065 filing.

Can I edit Schedule B-1 on a mobile device?

Yes. The Formize PDF Filler works on all modern browsers, including mobile Safari and Chrome, allowing you to complete the form on a phone or tablet.

What happens if I omit a partner’s TIN on Schedule B-1?

Missing or incorrect TINs cause the IRS to reject the partnership return. Always verify each TIN before submitting.

Is there a fee to use the Formize PDF Filler for Schedule B-1?

No. Formize provides a free, secure online filler for IRS PDFs, including Schedule B-1.

How do I correct a mistake after I’ve submitted Schedule B-1?

File an amended partnership return (Form 1065‑X) and attach a corrected Schedule B-1 with the updated information.

Do foreign partners need to be listed on Schedule B-1?

Yes, any foreign partner that owns 50% or more must be reported, including their foreign tax identification number if applicable.

Can I print Schedule B-1 after filling it online?

Absolutely. After completing the form, use the Download button to save a PDF, then print it for your records or for paper filing.

Form 1065 Schedule B-1 – Fillable PDF Download

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Form 1065 Schedule B-1 – Fillable PDF Download

Schedule B-1 (Form 1065) is an IRS attachment used by partnerships to disclose ownership of partnership interests by entities and individuals that own 50% or more of the profit, loss, or capital. Whether you are a general partner, limited partner, or an estate, accurate reporting on this schedule is critical for compliance with IRS Schedule B-1 requirements.

What Is Schedule B-1 (Form 1065)?

Schedule B-1 collects detailed information about owners who hold a significant stake (50% or more) in a partnership. The form asks for the owner’s name, taxpayer identification number, type of entity, and the percentage of ownership. This data helps the IRS track partnership structures and enforce tax rules on large ownership positions.

Who Must Complete Schedule B-1?

Any partnership filing Form 1065 that has an individual, estate, or entity owning 50% +  of the partnership’s profit, loss, or capital.
Foreign partners are also required to be listed if they meet the ownership threshold.
Partnerships that do not have any 50% +  owners can leave Schedule B-1 blank, but the form must still be attached to the return.

How to Fill Out Schedule B-1 Online with Formize

Instead of printing, scanning, or using a separate PDF editor, you can complete Schedule B-1 directly in your browser:

Click the **"Fill out this form"** button below.
Wait a few seconds while the Formize PDF Filler app loads the fillable PDF.
Enter the required information in each field – the interface works like a web form.
Use the **Save** button to store a copy on your device or in the cloud.
When finished, download the completed PDF or submit it electronically with your Form 1065 filing.

Common Mistakes to Avoid on Schedule B-1

Incorrect ownership percentage: Double‑check the % of profit, loss, and capital for each owner.
Missing Taxpayer Identification Number (TIN): The IRS will reject the return if a TIN is omitted.
Using the wrong entity type: Choose the exact classification (e.g., corporation, partnership, trust).
Leaving blank rows: If an owner does not meet the 50% threshold, do not list them; leave the row empty.

Download the Fillable PDF Instantly

Ready to start? Click the button below to open the official IRS Schedule B-1 (Form 1065) fillable PDF in the Formize PDF Filler. No additional software required.

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FAQ

What is the purpose of Schedule B-1 on Form 1065?
Schedule B-1 reports owners who have a 50% or greater interest in a partnership’s profit, loss, or capital. It helps the IRS track significant ownership stakes.
Do I need to file Schedule B-1 if no partner owns 50% or more?
If no individual, estate, or entity meets the 50% threshold, you can leave Schedule B-1 blank, but the schedule must still be attached to the Form 1065 filing.
Can I edit Schedule B-1 on a mobile device?
Yes. The Formize PDF Filler works on all modern browsers, including mobile Safari and Chrome, allowing you to complete the form on a phone or tablet.
What happens if I omit a partner’s TIN on Schedule B-1?
Missing or incorrect TINs cause the IRS to reject the partnership return. Always verify each TIN before submitting.
Is there a fee to use the Formize PDF Filler for Schedule B-1?
No. Formize provides a free, secure online filler for IRS PDFs, including Schedule B-1.
How do I correct a mistake after I’ve submitted Schedule B-1?
File an amended partnership return (Form 1065‑X) and attach a corrected Schedule B-1 with the updated information.
Do foreign partners need to be listed on Schedule B-1?
Yes, any foreign partner that owns 50% or more must be reported, including their foreign tax identification number if applicable.
Can I print Schedule B-1 after filling it online?
Absolutely. After completing the form, use the Download button to save a PDF, then print it for your records or for paper filing.

HOW TO

How to fill out Form 1065 Schedule B-1 for free, online in 4 easy steps:

1
Open the Fillable Form
Click the "Fill out this form" button above. The Formize PDF Filler will load the Schedule B-1 PDF directly in your browser.
2
Enter Owner Information
Type the name, TIN, entity type, and ownership percentages for each partner that owns 50% or more.
3
Review and Save
Use the built‑in review tools to check for missing fields, then click Save to store a copy on your device.
4
Download or Submit
When the form is complete, download the filled PDF or attach it to your electronic Form 1065 filing.

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Tax forms

Form 1065 Schedule B-1 is one of Tax forms that are documents used to report information about an individual's or business's income, deductions, and tax liability to the relevant tax authority. These forms are necessary to comply with tax laws and fulfill tax obligations. Tax forms vary depending on the country and the specific tax requirements in place. Here are some common types of tax forms:

Individual Tax Forms: These forms are used by individual taxpayers to report their personal income and claim deductions, credits, and exemptions. Examples include the 1040 form in the United States or the Self-Assessment Tax Return form in the United Kingdom.

Business Tax Forms: Business tax forms are used by companies, partnerships, or self-employed individuals to report their business income, expenses, and other tax-related information. Examples include the Schedule C form (Profit or Loss from Business) in the United States or the CT600 form (Company Tax Return) in the United Kingdom.

Payroll Tax Forms: These forms are used by employers to report the wages, salaries, and taxes withheld from their employees' paychecks. Examples include the W-2 form in the United States or the P60 form in the United Kingdom.

Sales Tax Forms: Sales tax forms are used by businesses to report and remit sales tax collected on taxable goods or services. The specific sales tax forms vary by jurisdiction.

Value Added Tax (VAT) Forms: VAT forms are used in countries that impose a value-added tax to report and remit VAT collected on sales and claim VAT credits for purchases. Examples include the VAT return forms used in many countries.

Estimated Tax Forms: Estimated tax forms are used to report and pay estimated taxes on income that is not subject to withholding, such as self-employment income or investment income.

These are just a few examples of the numerous tax forms that may exist. The specific forms required depend on the tax laws and regulations in your country or jurisdiction. It is important to consult the tax authority's guidelines or seek professional advice to determine which forms are applicable to your situation.

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