Purpose: Complex cryptoglandular anal fistula is morbid and resource‑intensive. We benchmarked outcomes and day‑surgery feasibility for two common sphincter‑sparing operations: ligation of intersphincteric fistula tract (LIFT) and endorectal advancement flap (ERAF). Methodology: Retrospective cohort study of adults undergoing LIFT or ERAF for complex anal fistula (2014–2023) at a metropolitan colorectal unit. Primary outcomes were recurrence and re‑intervention. Secondary outcomes included operating time, admission profile, continence (binary) and 30‑day morbidity (Clavien–Dindo). Results: 104 patients were included (88 LIFT; 16 ERAF), median age 45; 98% continent at baseline. Median follow‑up was 11 months (LIFT) and 18 months (ERAF). High trans‑sphincteric tracts predominated (88%); ERAF was preferentially used for supra-sphincteric disease (38% vs 1%). Median operating time was shorter for LIFT (55 min) than ERAF (86 min, p<0.001). Same‑day discharge was achieved in 94% after LIFT versus 56% after ERAF (p<0.001). Recurrence occurred in 36% after LIFT and 38% after ERAF (p=0.999); re‑intervention mirrored recurrence (36% vs 38%). No new continence impairment was recorded. Thirty‑day morbidity was predominantly antibiotic prescribing (Grade II: 53% LIFT; 63% ERAF); Grade III events were uncommon (1% LIFT; 6% ERAF). Conclusion: In an Australian tertiary service, LIFT and ERAF achieved comparable short‑term recurrence with preserved continence, but LIFT delivered substantially higher ambulatory throughput. This benchmark defines the performance gap for newer sphincter‑sparing technologies and supports targeted optimisation of day‑surgery pathways for complex fistula care.