Looking to get ERC20 balances for a particular address backwards in time

In my opinion, the most useful feature of Etherscan.io is to see what my address's ERC20 balances are. I keep tons of random ERC20s in my metamask and keeping track of them would be hard without Etherscan.io. But how do I check what my ERC20 balances were a month ago, 2 months ago, etc… I can see my trades, but for things like taxes it would be very helpful to see what my balances for each token frozen in time were for the first or last day of every month. Does such a tool exist? Btw I've tried more than 1 crypto tax app and I still haven't found one with this precise feature.