Little is known about problem gambling in older adults, particularly when gambling problems only commence late in life. Knowledge of pathways to later life problem gambling can assist prompt and effective interventions for vulnerable older adults. This study builds on a generic Pathways Model. It proposes routes to problem gambling for individuals aged 55 years and above, with a particular focus on late-life, rather than lifetime problem gambling. Gambling-related risk and protective factors/correlates were extracted from the literature based on the extent to which the studies were senior-specific. Common themes were then identified and classified into 3 main clusters: 1 concerning individual vulnerability factors, a 2nd concerning social and environmental factors, and a 3rd concerning factors affecting behavioural regulation.