The exclusion percentage question comes up if you have an entry in Box 2c of Form 1099-DIV.
If it's zero, delete the entry because that code section does not apply.
Internal Revenue Code section 1202 says a portion of the gain from sale of Qualified Small Business Stock (QSBS) reported on 2c is excludable if the stock was held more than 5 years.
If your Dividend Income included a capital gain distribution for qualified small business stock—RICs, a portion of the gain may be excluded under certain circumstances.
The payer of the 1099-DIV should have provided additional information if this applies:
If any part of the capital gain distribution reported in box 2a may qualify for this exclusion (taking into consideration the recipient's holding period), the payer should report the gain in box 2c, and furnish you with a statement that reports separately for each designated section 1202 gain the:
If this is the situation and you don't have the additional information needed to select an exclusion percentage, contact the payer.
See the IRS instructions for Form 1099-DIV for more information.