Scandal-plagued French presidential hopeful Francois Fillon was hit by a new revelation on Tuesday, this time over an interest-free, undeclared loan he received from a billionaire friend. 

The conservative candidate "did not deem it necessary" to report the 50,000 euros (53,000 US dollars) loan he received from Marc Ladreit de Lacharriere in 2013 to a state transparency watchdog, the Canard Enchaine weekly said in its edition to appear Wednesday. 

"The 'oversight' may be costly for the presidential candidate," said the investigative and satirical newspaper, which also made the allegations in January about the fake jobs scandal that has threatened to derail Fillon's candidacy. Le Canard Enchaine reported that Fillon's lawyer Antonin Levy had confirmed the loan had been repaid in full, but did not say when. 

Once the frontrunner to become France's next president in May, 63-year-old Fillon has had to battle to stay in the race because of revelations that he paid his wife Penelope hundreds of thousands of euros from public funds, allegedly for jobs she did not take. The former prime minister is to be charged later this month. 

Ladreit de Lacharriere is the CEO of Fimalac, a financial services holding company, and owns the literary magazine La Revue des Deux Mondes. The publication paid Penelope Fillon some 100,000 euros (94,600 US dollars) in 2012-13 but there is little evidence of her work. Investigators are looking into a possible link between this job and the bestowal of France's highest civilian honour, the Grand Croix of the Legion of Honour, on Ladreit de Lacharriere in 2011 when Fillon was prime minister. 

The Canard Enchaine also said investigators were looking into a consultancy firm called 2F Conseil that Fillon set up in 2012 after he left office as prime minister, which the paper says has paid him hundreds of thousands of euros. Fillon has denied any wrongdoing with his consultancy work. 

(Source: AFP)