The other day I was conducting a test on my cropper farm.
I had moved away from the farm such that only one cropper was active to check on it's production.
I remained there AFK for a couple hours.
As can be seen below I was charged 1% tax for the only active cropper......most of the time.
However, there are two periods where I was taxed at 28% and 29% (I do have 29 croppers on my island)
That with the small increase in income for those two periods tells me that all croppers were activated for about 30 seconds across those two periods (50 minutes)

No one visited during that time so I suspect a staff member was snooping.

At any rate, It would appear that the croppers were activate for roughly 1% of that 50 minutes but increased the tax for the entire 50 minutes.

Can we please have it so that croppers factor into tax only for the time that they are active.

So for each cropper: Tax rate = 0.01 x active time/tax period