Aims To assess the safety and feasibility of same day discharge for elective tonsillectomy patients following implementation of patient selection protocols. Methodology A retrospective audit of all tonsillectomy data from January 2018 to May 2023 at a tertiary hospital in Adelaide, Australia. The primary outcome was rate of readmission within 24 hours for day stay tonsillectomy patients. Secondary outcomes included primary post tonsillectomy haemorrhage. The patients were identified through the hospital’s tonsillectomy database, with subsequent review of charts to extract patient demographics, readmissions and reasons for, and post-operative haemorrhage. The patient selection protocol specifies that patients over the age of 4, living within 15km of the tertiary hospital and with access to a telephone and car may receive day case tonsillectomy. Results During the study period, a total of n=1660 elective tonsillectomies were performed. 586 patients were under 5 years old, 428 were school age and 646 were over 18. 40.1% (666) were discharged same day, 56.4% (936) were discharged on day 1 post op, and the remaining 3.5% (58) patients stayed between 3 and 18 nights in hospital. The readmission rate within 24 hours was 0.60% for day cases and 0.64% for 1 or more nights in hospital (X2(1, N=1660)=0.0001, p=.994). 4 day case patients were readmitted within 24 hours post tonsillectomy, 3 for primary post tonsillectomy haemorrhage and 1 for poor oral intake. Conclusion The readmission rate within 24 hours for day case tonsillectomies was not significantly different from patients who stayed in hospital post operatively. The low readmission rate and primary post-tonsillectomy haemorrhage within 24 hours post day case tonsillectomy for patients indicates the patient selection protocol is safe and feasible to implement.