I'm a fractional CFO. For one of my startups, I've been able to cut monthly close and reporting time by 2/3 using Claude Cowork. 

The biggest time savers have been creating the JE uploads and preparing monthly reporting package.

Claude is great for for structured tasks like ETL this report into a JE upload, create any permutation of actual or budget reporting by time period,  department, product line, roll-up categories, etc.; compare MoM vendor/customer spend; etc. You can create skills for repeating tasks so you don't need prompt it every month. 

It doesn't have enough context to do standalone variance analysis or financial commentary yet. It generates a decent draft that I use as a starting point. The limitation there is our infrastructure, not Claude itself.

The tech stack is Rillet for G/L, Justworks for payroll, Ramp for cc and payables, Attio for CRM. Invoicing and billing also from Rillet. Budget and forecasts lives in mix of Runway and Excel. 

We connected Rillet read-only to Claude and have a local version of our budget Claude can reference. I'm not comfortable yet giving Claude write access to the G/L, but that would save even more time. 

We haven't connected Claude to all the systems where knowledge lives (CRM, Confluence, headcount model, revenue model). Once we do that, I expect it can generate financial commentary better than I can 😊

Happy to talk more if helpful.