U.S. · Form 1099-R box 9a
1099-R box 9a percentage of total distribution.
When box 9a shows a percentage, and why it is usually blank.
Box 9a is your share of a total distribution paid to more than one person. If a plan pays out its whole balance to several beneficiaries, each person’s form shows that person’s percentage. It need not be completed for IRA distributions or direct rollovers, so for most people it is blank.
Look it up
Result
Box 9a, 9b and 8b compared
| Box | What the IRS instructions say |
|---|---|
| Box 9a: when to complete | If this is a total distribution and it is made to more than one person, enter the percentage received by the person whose name appears on the Form 1099-R. |
| Box 9a: when it is not needed | The payer need not complete it for any IRA distribution or for a direct rollover. |
| Beneficiaries | For distributions to a beneficiary, trust or estate, use that person’s name and TIN, not the decedent’s. With multiple beneficiaries, report on each form only the amount paid to the named beneficiary and enter the percentage in box 9a, if applicable. |
| Box 9b: total employee contributions | Optional. The payer may report total employee or designated Roth contributions in box 9b, excluding amounts recovered tax free in prior years. For a total distribution, report them in box 5 instead. |
| Box 8b: not the same thing | Box 8b is the percentage of an annuity contract that each form represents in a multiple-recipient lump-sum distribution that includes an annuity contract, shown with the actuarial value in box 8a. |
| Box 2b: total distribution | The payer checks the total-distribution box in 2b when the payment in box 1 empties the account. |
The mix-up with box 8b
People looking for their share of an inheritance sometimes read box 8b. That box only applies when the lump sum contains an annuity contract, in which case each form shows its share of that contract. Box 9a is the general box for each person’s percentage of the whole distribution.
Worked example
A parent dies with a 401(k) that pays its entire balance, $200,000, to three adult children in unequal shares: 50%, 30% and 20%. Each child receives their own Form 1099-R under their own name and TIN. The first shows $100,000 in box 1 and 50% in box 9a, the second $60,000 and 30%, the third $40,000 and 20%. Box 2b “total distribution” is checked on each. The figures are illustrative.
What to do if yours looks wrong
Box 9a is informational for the IRS and the recipient. If the percentage does not match what you received, ask the plan administrator for a corrected form. Nothing on this page replaces tax advice on how an inherited distribution is taxed.
Sources
- Instructions for Forms 1099-R and 5498 (2026): Table 1 distribution codes and the instructions for the 1099-R boxes covered above. Read November 2, 2026.
IRS page last reviewed June 23, 2026. This is the 2026 edition of the instructions, written for forms filed for 2026 distributions; the IRS revises it each year, so check the current edition before relying on a code.
Frequently asked questions
What is box 9a on Form 1099-R?
Box 9a is your percentage of a total distribution, shown when the distribution was made to more than one person.
Why is box 9a blank on my 1099-R?
The payer need not fill it for IRA distributions or direct rollovers, and it only applies when a total distribution is shared by more than one person.
Who gets a Form 1099-R after someone dies?
Each beneficiary, trust or estate that receives a payment, in their own name and TIN rather than the decedent’s.
What is the difference between box 9a and box 8b?
Box 9a is each person’s percentage of the total distribution. Box 8b is the percentage of an annuity contract each form represents in a lump sum that includes an annuity contract.
Is box 9b the same as box 5?
No. Box 9b is an optional report of total employee contributions. For a total distribution the contributions are reported in box 5 instead.
Not tax or legal advice
This page summarizes IRS instructions to payers and is not tax, legal or financial advice. A CPA, enrolled agent or the payer can confirm what applies to your situation. Everything runs in your browser; nothing you enter is sent anywhere.