Do you get a tax write off if you lose money selling your primary household?

I do not believe you can take the loss if the house was your personal residence.

Nope. Personal use assets are not deductible. Sorry.
Can you rent it for a while?

I think you just lower your basis, but I am not an accountant. Good question though!

@worriedguy I don’t want to rent this property.

I wonder if you move before selling it and establish a new primary if you can claim the loss? Are all secondary homes considered “investments?”

@JLeslie No. You may have to prove that it was rented. No, some secondary homes are vacation homes.

For an accurate, legal answer, you need to consult a licensed professional. To the best of my knowledge, you cannot take a deduction for a loss on the sale of your primary residence, nor of a secondary residence that is not a legal rental.