The 24-year old has admitted to the FA charges after betting on football matches during a long spell on the sidelines because of a knee injury.
Along with the aforementioned fine, the former Everton youngster has been warned as to his future conduct following the Independent Regulatory Commission hearing.
A FA statement read: "Gosling, who requested a personal hearing, admitted multiple breaches of FA Rule E8(b) for misconduct in relation to betting."
Gosling, who started his career with Plymouth Argyle, joined Newcastle from Everton in 2010 but has failed to become a regular at St James' Park and was subsequently loaned to Blackpool late last year. He returned to the north east in January and has since made three substitute appearances for the Magpies.
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