can i contribute to HSA in 2021 for 2020?

In past tax years i have been able to contribute  maximum $$ ($8000 in 2020 for the 2019 tax year)

can i do this in 2021 for the tax year 2020?

turbotax asks if i contributed funds into HSA in 2020  -- yes i did, but for 2019 tax year


will turbotax ask me if i want to reduce my taxable income by contributing the maximum (family $7100 + $1000

for my wife and I (both 55+) for $8100 for the tax year 2020?