PurposePerformance measures are an important mediating mechanism that influences the design and delivery of care. Unfortunately, it is still commonly the case that acute care indicators are employed to assess the efficacy of integrated care. This hinders the ability to accurately assess and continuously improve integrated care efforts for priority populations, including older persons who live with complex health and social care requirements. A core set of indicators is needed from which to assess the quality and impact of integrated care on these older persons and care partners.Design/methodology/approachA modified Delphi process was employed that comprised of the following steps: (1) selection of an indicator inventory (2) defining criteria for ranking and achieving consensus, (3) recruiting participants, (4) iterative voting rounds and analysis and (5) selection of a core indicator set.FindingsThe study produced a core set of 16 indicators of integrated care that pertain to older persons who live with health and social care requirements. The set can be applied by health and social care organizations and systems to assess the quality and impact of integrated care for this population across the continuum of care.Research limitations/implicationsAlthough the gap in the availability of relevant indicators was the impetus for the study, this also meant there was a dearth of validated indicators to draw from. There are significant gaps in commonly used data sets with respect to indicators of integrated care as it relates to older persons and care partner.Practical implicationsThe indicator set is intended to follow the older person and care partner throughout their health journey, enabling a whole systems view of their care. The set can be used in full or in part by health and social care systems and organizations across various primary, acute, rehabilitative and community settings for program development and evaluation purposes.Social implicationsThe core set of indicators that emerged out of this study is a first step toward ensuring that older persons who live with complex health and social care requirements and their care partners receive quality integrated care across the continuum of care.Originality/valueThe findings are informed by the perspectives of older persons, care partners and healthcare professionals. Future research is needed to test, validate and potentially expand the indicator set.