I'd be interested in checking this out. I developed this household budget Google Sheet which maybe someday I'll find the time to rebuild on Airtable. You're welcome to steal from it, but it takes a very different approach of using transaction tables which correspond to the CSV export formats offered by our financial institutions. Then the analysis tabs pull it together using formulas that are structured to work with each of those outputs.
My workaround for this involves a table where each record represents a month-year, and I populate that with an automation
Can't say for sure how it'd be set up within your table, but imagine a base that only had the "Transactions" and "Month-Year" table, and they're linked
I'd have a formula field that outputs the transaction record's month-year value (e.g. 01 2022), and an automation that would paste that value into the linked field. The "Month-Year" table would have a rollup and display the monthly breakdown
I'd be very interested in another way to do this as well
There are two possible solutions here. For the personal budget, I think I’d go with Jeremy Oglesby’s formula field in your Categories/Buckets table to total this month’s transactions, which will give you a snapshot of how well (or not so well) you’re doing this month based on how much you’ve budgeted for that bucket this month.
I’m not sure how helpful that will be for the non-profit, though…. But it might be a place to start?