Box 1b on 1099-B is blank. Have owned shares for at least 10 years. Will the gain be treated as long term?

[fanfare]

select Sales Category E.

For Date Acquired, enter the date if you know it, otherwise, enter "various".

[MinhT1]

Yes, the capital gain will be treated as long term if you have held the shares for more than one year.

[fanfare]

@gebnancy  answer above revised.

[gebnancy]

If 1099b is blank, how does TurboTax know whether to treat it as long or short capital gains?

[fanfare]

select sales category D or E for Long Term