Altered fractionation radiotherapy for head and neck cancer has been associated with improved locoregional control, overall survival, and heightened toxicity compared with conventional treatment. Swallowing, nutrition and patient-perceived function for altered fractionation radiotherapy with concomitant boost (AFRT-CB) for T1-T3 oropharyngeal SCC has not been previously reported. Fourteen consecutive patients treated with AFRT-CB for oropharyngeal SCC were recruited from November 2006 to August 2009 in a tertiary hospital in Brisbane, Australia. Swallowing, nutrition and patient-perceived functional impact assessments were conducted pre-treatment, at 4-6 weeks post-treatment and at 6 months posttreatment. Deterioration from pre-treatment to 4-6 weeks post-treatment in swallowing, nutrition and functional impact was evident, likely due to the heightened toxicity associated with AFRT-CB. There was significant improvement at 6 months post-treatment in functional swallowing, nutritional status, patient-perceived swallowing and overall function, consistent with recovery from acute toxicity. However, weight and patient-perception of their physical function and side effects remained significantly worse than pre-treatment scores. The ongoing deficits related to weight and patient-perceived outcomes at 6 months revealed this treatment has a long-term impact on function possibly related to the chronic effects of AFRT-CB.