Which parts of the financial close process are actually automatable with AI today?

Our finance team spends 12 days on month-end close. I'm being told AI can compress this significantly. Our auditors are nervous about AI involvement in reported figures and I share their caution. I need a clear picture of which tasks in the close cycle are genuine candidates for AI automation today — not in theory but in actual production use at companies with audit obligations — and which ones should stay human-controlled.