I spent $150.00 yesterday , wasn't I suppose to get $10.00 for every $50 I spend?

During a Kohl's cash promotion, you receive $10 for every $50 subtotal, before taxes. Say your subtotal was $130-something. Even if taxes brought your total to $150 or over, you would still only receive $20 Kohl's cash. If you make another purchase during the period, you can ask the cashiers to combine receipts to activate another $10.

Yes

I m not sure if they differ between inclusive or exclusive tax. However, every 50 $ 10 cash kohls.

I say yes. Not sure if some items may not qualify.