The senator has said his wife, Catherine, paid every bill the couple received for the modernization of their Alaska cabin - $160,000 in all.
"I pay my bills wherever I am," Stevens said Friday.
Stevens also claims Allen, who has pleaded guilty to bribing state legislators, kept the couple in the dark about the extent of the work that changed Stevens' modest A-frame cabin into a handsome two-story home and its cost.
But the Justice Department, who charged the senator with failing to disclose on Senate financial forms the renovations and freebies, alleges Stevens knew he was getting free or cut-rate home renovations and intentionally concealed them.
"If it was a gift, why did I ask for a bill?" said Stevens in one testy exchange with Morris.
"To cover your butt," Morris said calmly, a charge Stevens said "wasn't fair."
The senator, a patriarch of Alaska politics for generations, has languished in the courtroom in Washington as a Democratic opponent back home mounts a strong challenge to the seat the senator has held for 40 years.