1099-DIV Box 1a and 1b: Ordinary vs Qualified Dividends

Updated September 30, 2026. Quick answer: Box 1a of Form 1099-DIV is the total of your ordinary dividends. Box 1b is a portion of that same total, the part the payer says qualifies for the reduced capital gains rates. Box 1b is not added on top of Box 1a.

Schedule D and Schedule E (Form 1040) for 2025, read line by line: Schedule D lines 13 to 15, Schedule D line 20 and Schedule D lines 21 and 22.

Schedule A and Schedule B (Form 1040) for 2025, read line by line: Schedule A lines 9 and 10 and Schedule B lines 5 and 6.

Form 1040 for 2025, read line by line: Form 1040 lines 3a and 3b and Form 1040 line 7.

The recipient copy of Form 1099-NEC or 1099-MISC, read box by box: 1099-MISC box 8.

The shareholder’s Schedule K-1 (Form 1120-S), boxes 13 to 19: Schedule K-1 box 17 codes A, B and U.

The shareholder’s Schedule K-1 (Form 1120-S), read box by box: Schedule K-1 boxes 4 to 6.

The partner’s Schedule K-1 (Form 1065), read box by box: Schedule K-1 box 16, Schedule K-1 box 18 and Schedule K-1 box 20 A and B.

The partner’s Schedule K-1 (Form 1065), read box by box: Schedule K-1 box 6.

The IRS form or worksheet behind this, read line by line: Schedule B instructions.

Whether your state taxes the dividends and interest is answered state by state: state tax on dividends and interest, by state.

The IRS form or worksheet behind this, read line by line: Form 1116 and the foreign tax credit and the qualified dividends and capital gain tax worksheet.

What goes in Box 1a

The IRS instruction to the payer reads: “Enter dividends, including dividends from money market funds, net short-term capital gains from mutual funds, and other distributions on stock.” It adds: “Include reinvested dividends and section 404(k) dividends paid directly from the corporation.” The 1099-DIV instructions read here are the January 2024 revision, which is the edition irs.gov shows as current for that form. Those are instructions to the payer that files the form, so they show what a box is meant to hold, not what tax follows from it. Two things in that list surprise people: reinvested dividends count, and a mutual fund’s net short-term capital gains are in Box 1a, not in the capital gain boxes on the Box 2a page.

What goes in Box 1b

The instruction is: “Enter the portion of the dividends in box 1a that qualifies for the reduced capital gains rates.” The payer is also told to “Include dividends for which it is impractical to determine if the section 1(h)(11)(B)(iii) holding period requirement has been met.” The same instruction says “Qualified dividends cannot be less than zero.”

Boxes 1a and 1b are not two separate pools

Box 1b is a portion of Box 1a. Box 1a also takes in the recipient’s share of investment expenses: the instruction says Box 1a “also includes the amount of the recipient’s share of investment expenses that you report in box 6”, while Box 6 itself says “Do not include any investment expenses in box 1b.” How Box 6 works is on the Box 5 and Box 6 page.

What the instructions do not say

These pages do not tell you which tax rate applies to a qualified dividend or what income level changes it. The rate question is covered in the dividends versus ordinary income comparer and the capital gains brackets page.

Common mistakes

• Adding Box 1b to Box 1a. Box 1b is a portion of Box 1a, not an extra amount.
• Looking for a mutual fund’s short-term gains in Box 2a. The instructions put net short-term capital gains from mutual funds in Box 1a.
• Assuming every dividend in Box 1a is also in Box 1b. The instruction says Box 1b holds the portion that qualifies.

Related: 1099-DIV Box 2a to 2f: Capital Gain Distributions, 1099-DIV Box 5 Section 199A Dividends and Box 6, 1099-DIV Box 3 Nondividend Distributions and Boxes 9 and 10, 1099-DIV Box 4 Withholding and Box 7 Foreign Tax Paid, and the dividends versus ordinary income comparer.

Every box in one place: the 1099-DIV, 1099-INT and 1099-B boxes table. If your withdrawal came from an IRA or 401(k), see the Form 1099-R Box 7 codes.

Sources

• IRS, Instructions for Form 1099-DIV (Rev. January 2024): irs.gov/pub/irs-pdf/i1099div.pdf
• IRS, Instructions for Forms 1099-INT and 1099-OID (Rev. January 2024): irs.gov/pub/irs-pdf/i1099int.pdf
• IRS, Instructions for Form 1099-B (2026): irs.gov/instructions/i1099b

Source: the IRS instructions for the filer of each form, read at irs.gov on September 30, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the account provider or the IRS is the right place to confirm anything consequential.