I'm trying to enter a date for the foreign residency exclusion but the website isn't taking my answer. I entered 08/15/2016 and 08/30/2017 as the 1 year period.

[bsb21]

It's the qualifying 12 month period.

[Critter]

Ok ... those dates are more than 1 year  ... it needs to be exactly one year... try again.