Christopher Phillips, 60, of Porthcawl, pleaded guilty at Cardiff Crown Court in March to preventing the lawful and decent burial of a dead body and fraud by false representation.
He was sentenced to two years and four months in prison at Merthyr Tydfil Crown Court on Monday, August 3.
South Wales Police were called to a property on Poplar Crescent in Porthcawl on February 17 following concerns about a woman who had not been seen by medical professionals since 2022.
Upon arrival, officers spoke to Phillips, who claimed his mother was in London with cousins.
However, he was unable to provide any further details about her whereabouts.
A search of the property led to the discovery of a freezer with flowers placed on top of it.
Further investigation revealed the body of a woman in her 80s, now confirmed to be Sylvia Phillips.
Senior investigating officer, Detective Chief Inspector Claire Lamerton, said: “This is an extremely sad case where Phillips concealed his own mother’s death and financially profited for a significant period.
“My thoughts are with Sylvia’s loved ones during such a difficult time, and I hope they have found some peace having been able to properly lay her to rest.”
Phillips gave no comment in police interviews.
A post-mortem examination has been carried out, but the cause of death remains undetermined.
