I use AI to help me do my accounting (how to categorize and account for things). It pays for itself because I need to spend money for far fewer hours from an accounting firm each month to make sure that captialized expenses, depreciation, tax credits (we have Historical Tax Credits from restoring an 1880s building) etc, is put in the books properly. The AI gets it right a high enough percentage of the time that I only the to have a real accountant look at things once a quarter to make sure it's all OK. I used to have a dozen questions every month.