An Iowa man killed his wife of 42 years after she noticed discrepancies in their joint bank account, court records show.

Roy Carl Browning Jr., 67, was charged with first-degree murder on Monday in connection with the April 5 death of his 65-year-old wife, JoEllen Browning, who was found dead in her bedroom in the couple’s Iowa City home with stab wounds to her torso and left hand, the Iowa City Press-Citizen reports.

JoEllen Browning, the director of operating budgets at the University of Iowa Health System, had demanded answers from her hubby about the missing funds in a series of emails and text messages just four days earlier — and had a meeting scheduled with a banker to discuss the matter on the day she was found dead, according to a criminal complaint.

“JoEllen was preparing for tax season and had found some problems with Roy and JoEllen’s accounts,” the complaint reads. “The representative was prepared to tell JoEllen at this meeting that one of their savings accounts was depleted and Roy had taken out loans of which JoEllen was not aware.”

The banker was also about to tell JoEllen that another account she assumed was active had never actually been opened, officials said.

Investigators claim Roy Browning took out at least four loans of $4,000 with an interest rate exceeding 300 percent and told an Illinois company not to contact his wife about the dough.

He also paid off a $17,600 credit card debt in his wife’s name with his personal checking account, and kept using the card after her funeral, court records show.

The alleged murder weapon used to kill JoEllen — whose death has been ruled a homicide caused by “sharp force injuries” — has not been found. But investigators said DNA evidence implicating him was found on the woman’s finger, authorities said.

Roy Browning has acknowledged the April 5 meeting that his wife arranged with a banker, but has denied killing her. Less than an hour after being told of the meeting, Roy Browning was spotted at a paint supply store buying rubber gloves and white towels, court documents show.

JoEllen had retirement savings and a life insurance policy worth more than $2.5 million, investigators said.

Browning, who faces up to life in prison without parole if convicted, remained held on $5 million bond as of Wednesday, online records show.

An attorney representing him did not immediately return a request for comment.

With Post wires