This Form 8606 2026 guide explains the IRS Nondeductible IRAs. Form 8606 tracks matters such as nondeductible IRA basis and the taxable treatment of covered IRA transactions. A contribution, a conversion and a distribution can create different reporting steps. Prior-year basis information may be necessary even when the current transaction appears simple.
Reviewed October 31, 2026. This is an independent guide. The version and availability information below identifies the IRS documents used for this page.
What Form 8606 2026 does and who prepares it
An individual uses the form for the nondeductible IRA and other IRA transactions described in its instructions.
For the connected reporting route, see Form 1099-R. Keep the role of that document separate from the task explained on this page.
| Official form | Form 8606 |
|---|---|
| IRS title | Nondeductible IRAs |
| Guide period | 2026 |
| Target version | 2026 |
| Availability | Draft — not for filing |
| Last checked | October 31, 2026 |
Get the Form 8606 2026 PDF and check its status
Use the IRS source to confirm the document before completing a real filing. The download link is a reference to the official file; it is not a statement that every copy inside the PDF may be printed and submitted. Follow any instructions about electronic filing, scannable copies, recipient copies or attachments.
Which version of Form 8606 2026 should you use?
The 2026 in the title identifies the tax year or calendar-year information addressed by this guide. For a 2026 income reporting document, the preparation or filing activity may occur in 2027. Do not change the income year simply because the calendar has changed. The exact filing or furnishing date comes from the instructions for this form and the filer circumstances. The linked target PDF is a draft. It may be used to understand the proposed layout, but it is not a form to file. Amounts or instructions still subject to completion must be checked again when the final version is released.
Records to gather for Form 8606 2026
- Prior Forms 8606.
- IRA contribution records.
- Distribution statements.
- Account year-end values.
- Conversion and rollover confirmations.
Keep a working reconciliation with these records. It should show the source of each reported item, any correction made before filing and the reason a different amount appears on a connected form. This is especially useful when a statement is corrected or a prior-year balance continues into the current calculation.
How to work through Form 8606 2026
- Confirm applicability. Start with the purpose, filer category and version of the form. Complete any eligibility or applicability question before spending time on the numerical calculation.
- Prepare the source workpapers. Gather the records listed below and reconcile their totals. Keep prior-year balances, current-year transactions and estimated payments separate where they serve different purposes.
- Complete dependent calculations first. When a line refers to another form, schedule or worksheet, finish that supporting calculation first. Preserve any classification, limitation and carryforward information.
- Follow the line sequence. Use the actual line labels and arithmetic in the applicable form. A line number from an older version may refer to something different after a revision.
- Reconcile the filing package. Check names, identifying numbers, tax periods, totals and required attachments. Then use the filing method, signature process and deadline that apply to this filer and form.
Form-specific IRS instructions and reporting details
The following points retain the operative wording of the IRS documents linked above. Read each point with its stated conditions and the applicable form version. References to another form or section describe a connected requirement; they do not mean that every reader must file every referenced document.
File 2026 Form 8606 with your 2026 Form 1040, 1040-SR, or 1040-NR by the due date, including extensions, of your return. If you aren’t required to file an income tax return but are required to file 2026 Form 8606, sign 2026 Form 8606 and send it to the IRS at the same time and place you would otherwise file 2026 Form 1040, 1040-SR, or 1040-NR. Be sure to include your address on page 1 of the form and your signature and the date on page 2 of the form.
Contributions. An overall contribution limit applies to contributions to traditional IRAs that aren’t employer contributions made to a traditional SEP IRA under a SEP arrangement or to a traditional SIMPLE IRA under a SIMPLE IRA plan. See Overall Contribution Limit for Traditional and Roth IRAs, later. Contributions to a traditional IRA may be fully deductible, partially deductible, or completely nondeductible. Basis.
Your basis in traditional IRAs is the total of all your nondeductible contributions and your nontaxable amounts included in rollovers made to these IRAs minus the total of all your nontaxable distributions, adjusted if necessary. See the instructions for line 2, later.
Additional reporting conditions
Any 2026 retirement plan distributions whose re payments are treated as rollovers. The term “any 2026 retirement plan distributions whose repayments are treated as rollovers” is used in line 19 of 2026 Form 8606 and throughout these instructions as needed. The term describes the following distributions made in 2026. • Qualified disaster distributions (also known as qualified disaster recovery distributions). • Qualified birth or adoption distributions. • Emergency personal expense distributions. • Domestic abuse distributions. • Terminal illness distributions.
Generally, after you file your return, you can change a nondeductible contribution to a traditional IRA to a deductible contribution or vice versa if you make the change within the time limit for filing Form 1040-X, Amended U.S. Individual Income Tax Return (see the Form 1040-X instructions). You may also be able to make a recharacterization (discussed earlier). If necessary, complete a new Form 8606 showing the revised information and file it with Form 1040-X.
If you didn’t have any deductible contributions, you can make nondeductible contributions up to your contribution limit (see Overall Contribution Limit for Traditional and Roth IRAs, earlier). Enter on line 1 of Form 8606 your nondeductible contributions. Include on line 1 any repayment of a qualified reservist distribution. Don’t include on line 1 contributions that you had returned to you with the related earnings (or less any loss). See Return of IRA Contributions, earlier.
Generally, if this is the first year you are required to file Form 8606, enter -0-. Otherwise, use the Total Basis Chart to find the amount to enter on line 2.
Calculations and supporting information
However, you may need to enter an amount that is more than zero (even if this is the first year you are required to file Form 8606) or increase or decrease the amount from the chart if your basis changed because of any of the following. • You had a return of excess traditional IRA contributions (see Return of Excess Traditional IRA Contributions, earlier). • Incident to divorce, you transferred or received part or all of a traditional IRA (see the last bulleted item under Line 7, later). • You rolled over any nontaxable portion of your qualified retirement plan to a traditional IRA that wasn’t previously reported on Form 8606, line 2.
Include the nontaxable portion on line 2.
If you used the worksheet Figuring Your Reduced IRA Deduction for 2026 in Pub. 590-A, enter on line 1 of Form 8606 any nondeductible contributions from the appropriate lines of that worksheet.
Line 7 If you received a distribution in 2026 from a traditional IRA and you also made contributions for 2026 to a traditional IRA that may not be fully deductible because of the income limits, you must make a special computation before completing the rest of this form. For details, including how to complete Form 8606, see Are Distributions Taxable? in chapter 1 of Pub. 590-B.
Exceptions and related reporting
Enter the amount on line 3 reduced by the amount on line 13. If you completed the 2026 Line 15c Worksheet, include the amount, if any, from line 6 of the worksheet on line 14 of Form 8606 in the next year after 2026 you report traditional IRA distributions on Part I of Form 8606.
If you are completing Part I of 2026 Form 8606 (and the last time you filed a Form 8606 with a completed Part I before 2026, you completed a Line 15c Worksheet on which the amount on line 6 was greater than zero), enter on line 14 of your 2026 Form 8606 the amount on 2026 Form 8606, line 3, reduced by the amount on 2026 Form 8606, line 13, and increased by the amount from line 6 of that earlier worksheet.
Did you repay, within the 3-year repayment period, qualified birth or adoption distributions, emergency personal expense distributions, domestic abuse distributions, or terminal illness distributions that you reported on 2026 Form 8606, line 7? [ ] Yes. Complete this worksheet. [ ] No. Don’t complete this worksheet. Enter on 2026 Form 8606, line 15c, the amount on 2026 Form 8606, line 15a, reduced by the amount on 2026 Form 8606, line 15b.
Because line 6 is blank, you don’t have an amount, as a result of the repayment, to add to line 14 of your Form 8606 for the next year after 2026 you report traditional IRA distributions in Part I of Form 8606.
Further form details
Line 22 If you completed the 2026 Line 25c Worksheet, include the amount, if any, from line 5 of the worksheet on line 22 of Form 8606 in the next year after 2026 you report Roth IRA distributions on Part III of Form 8606.
If you are completing Part III of 2026 Form 8606 (and the last time you filed a Form 8606 with Part III completed before 2026, you completed a Line 25c Worksheet on which the amount on line 5 was greater than zero), increase the amount on line 22 of your 2026 Form 8606 by the amount from line 5 of that earlier worksheet.
Reading the lines and boxes
These selected labels come from the linked target PDF. They are a reading aid, not a replacement for the full line instructions or a completed calculation. Match the label and document version before transferring any amount.
| Line or box | Label in the source form | What to check |
|---|---|---|
| 1 | Enter your nondeductible contributions to traditional IRAs for 2026, including those made for 2026 | Complete the applicable eligibility and limitation workpapers before entering an amount. The label alone does not establish that every reported expense or payment qualifies. |
| 2 | Enter your total basis in traditional IRAs. See instructions | Follow the stated arithmetic and line references in sequence. Complete the referenced inputs first and retain the worksheet supporting the result. |
| 3 | Add lines 1 and 2 | Follow the stated arithmetic and line references in sequence. Complete the referenced inputs first and retain the worksheet supporting the result. |
| 4 | Enter those contributions included on line 1 that were made from January 1, 2027, through April 15, | Check the applicable line instructions and keep the source workpaper with the return records. Transfer only the information that matches the field and reporting period. |
| 5 | Subtract line 4 from line 3 | Follow the stated arithmetic and line references in sequence. Complete the referenced inputs first and retain the worksheet supporting the result. |
Further selected fields
| Line or box | Label in the source form | What to check |
|---|---|---|
| 6 | Enter the value of all your traditional IRAs as of December 31, 2026, plus any outstanding rollovers. | Check the applicable line instructions and keep the source workpaper with the return records. Transfer only the information that matches the field and reporting period. |
| 7 | Enter your distributions from traditional IRAs in 2026. Do not include rollovers (but do include certain | Check the applicable line instructions and keep the source workpaper with the return records. Transfer only the information that matches the field and reporting period. |
| 8 | Enter the net amount you converted from traditional IRAs to Roth IRAs in 2026. Also, enter this amount | Check the applicable line instructions and keep the source workpaper with the return records. Transfer only the information that matches the field and reporting period. |
| 9 | Add lines 6, 7, and 8 | Follow the stated arithmetic and line references in sequence. Complete the referenced inputs first and retain the worksheet supporting the result. |
| 10 | Divide line 5 by line 9. Enter the result as a decimal rounded to at least 3 | Follow the stated arithmetic and line references in sequence. Complete the referenced inputs first and retain the worksheet supporting the result. |
A practical example
A taxpayer who made nondeductible IRA contributions in earlier years completes a later conversion. The taxpayer retrieves prior basis records and the current transaction statements before calculating the amount reported on the form.
This example illustrates the order of the review. It does not assume an unverified deduction, exemption, treaty rate or final tax amount. The applicable form instructions and the actual records determine the result.
Common mistakes to avoid with Form 8606 2026
- Do not lose prior nondeductible basis when moving between preparers or software.
- A distribution taxable-amount box may not contain the whole answer.
- Check the applicable aggregation and calculation rules before treating a conversion as fully tax-free.
Questions about Form 8606 2026
Does receiving or downloading this form mean I must file it?
An individual uses the form for the nondeductible IRA and other IRA transactions described in its instructions. The form purpose and the applicable filing or furnishing conditions determine the action. Downloading a blank PDF does not itself create a filing obligation or establish eligibility for a tax benefit.
Can I file the draft PDF?
No. The linked target is marked as a draft. Use it to understand the proposed layout and prepare records, but wait for the applicable final filing version. Check the IRS source again before using any year-specific amount, worksheet or filing instruction.
What should I do if the underlying information is wrong?
Do not lose prior nondeductible basis when moving between preparers or software. Keep the original record and the correction trail. The issuer correction process, an amended return and an updated certificate can be different procedures. Choose the process that matches the document and the actual error.
Which records should I keep with the completed form?
Retain the source documents, applicable worksheets, submitted version and filing or furnishing confirmations. For this form, the working file should include prior Forms 8606, IRA contribution records, distribution statements. Keep continuing balances and prior-year support for as long as they remain relevant under the applicable recordkeeping rules.
Related forms and next steps
Use these guides when the connected issue applies to your records. Each page has its own purpose, reporting year and availability status.