Tax-wise, there's no issue. Divorce-wise, make sure you have appropriate legal assistance. The very first thing my wife and I did when we decided to split was to separate our finances and get individual bank accounts.
The other issue is that if you are not telling the lender that you are divorcing, and you are relying on your combined bank accounts and combined income to qualify for a mortgage, that could be considered bank fraud. Please be careful and get appropriate legal assistance.
