Fill out Form 4952 online
Investment Interest Expense Deduction
Used to figure the deduction for interest paid on money borrowed to buy investments.
Opens in the DocZap editor. What you type stays in your browser.
- Published by
- IRS
- Version
- 2026
- Length
- 4 pages
- Fillable fields
- 20
20 fillable fields
Have these ready
- The records that support the amount you are claiming
- Your tax return, since most of these forms attach to Form 1040
- The IRS instructions for this form, because the rules for who qualifies change
What's on Form 4952
This is the 2026 version, 4 pages long, with 20 fillable fields, including 17 text boxes. In the editor, the fillable fields are highlighted so you can see where to type.
The form is organized into parts:
- Part I: Total Investment Interest Expense
- Part II: Net Investment Income
- Part III: Investment Interest Expense Deduction
How filling it in works
- 1
Open the form
Choose "Fill this form". The blank Form 4952 opens in the editor.
- 2
Type into it
Click a field and type, or click a box to tick it. Use Text for anything that isn't a field.
- 3
Download your copy
Press Done to save the filled-in PDF to your device. Nothing is uploaded.
After you fill it in
Frequently asked questions
Is this the official Form 4952?+
It is the blank PDF published by the IRS (2026). DocZap hosts a copy and isn't affiliated with the IRS. Before you submit it, check the IRS forms and instructions page for a newer version.
How do I fill out Form 4952 online?+
Choose "Fill this form" and the blank form opens in the DocZap editor with 20 fillable fields. Click a field to type, or click a box to tick it. For anything that isn't a field, use the Text tool to type anywhere on the page, or the Image tool to add a picture of your signature. Press Done to download your copy.
Is what I type uploaded anywhere?+
No. The blank form loads from this site, then everything you type stays in your browser tab. Nothing is sent to a server and nothing is saved when you close the tab, so download your finished PDF before you leave.
Where do I send Form 4952 once it's filled in?+
It depends on the form and your situation. The instructions for Form 4952 explain who receives it and how to submit it, so read them first. They are on the IRS forms and instructions page.
How long is Form 4952?+
This PDF (2026) is 4 pages long and has 20 fillable fields, including 17 text boxes.
What parts does Form 4952 have?+
Form 4952 starts with Part I: Total Investment Interest Expense; Part II: Net Investment Income; Part III: Investment Interest Expense Deduction. The instructions explain what to enter in each part.
Does it cost anything?+
No. There is no account, no watermark, and no limit on how many forms you fill in.
More credits and deductions forms
- Form 2441Child and Dependent Care Expenses
- Form 8863Education Credits (American Opportunity and Lifetime Learning Credits)
- Form 8880Credit for Qualified Retirement Savings Contributions
- Form 8889Health Savings Accounts (HSAs)
- Form 8829Expenses for Business Use of Your Home
- Form 8995Qualified Business Income Deduction Simplified Computation
DocZap isn't affiliated with the IRSor any government agency, and this page isn't legal or tax advice. Find the latest version, instructions and submission details on the IRS forms and instructions page.