My accountant found a discrepancy on my tax returns for last year. My income had been overstated by approximately 20 percent. He is filing an amended return with the IRS. Meanwhile I was approved for a mortgage, in a large part, based on income on my last tax return. I have already closed and am living in my new house. What will happen if the bank finds out that I overstated my income by 20 percent? What is my legal obligation? Do I need to advise the bank? Can they revoke (call) the mortgage and foreclose even though I am making payments on time?