Can I carry over a $100,000 deposit from december 2016 to my 2017 taxes and not declare it on my 2016?

[DDollar · Accepted solution]

No.  You have "constructive receipt" of the funds. If you received it in 2016, it's taxable in 2016 if you are a cash basis tax payer.  If you were an accrual based tax payer, it would not be taxable, but it's very unlikely your an accrual based taxpayer.  There would be an exception if the funds were held by a 3rd party in an escrow account.