ACO benchmarks are no longer a year-end scoring issue—they are a test of structural discipline. By 2026, success will depend on governance that treats benchmarks as strategic signals, data that is stabilized before it's improved, and operations that are precisely aligned with clear priorities. The key is shifting from urgent, short-term fixes to proactive positioning. Build early warning systems, integrate benchmark trends into financial strategy, and anchor every measure in clear accountability. Benchmarks reward organizations that operate with consistency and foresight, not those that scramble after the performance year has already closed.

The 2026 CMS proposed rule introduces major updates for ACOs in the Medicare Shared Savings Program (MSSP), including mandatory APP reporting, a stronger push toward digital quality measures, and higher performance thresholds. Key changes also include revised benchmarking, beneficiary attribution adjustments, and expanded Promoting Interoperability requirements. ACO leaders should prepare for increased digital reporting demands while taking advantage of new flexibilities—especially for rural and smaller ACOs. Stay informed and ready for compliance ahead of the final rule.