Your speaking of VAT. And even though it’s pointed out on the receipt, it doesn’t mean that the consumer pays all of it compared to a scenario without tax: just

Your speaking of VAT. And even though it’s pointed out on the receipt, it doesn’t mean that the consumer pays all of it compared to a scenario without tax: just imagine you’re a businessman and a VAT of 20% is introduced. Would you be able to increase the prices of all your goods by 20%? For some, maybe. For others with fierce competition and hesitant buyers? Maybe not. The same shows the other way around: imagine a VAT of 20% is abolished. Would you lower all your prices by ~16.6%? Probably, but only for those items that you know your competitors will reduce the price for as well. The terminology to look up is elasticity of supply and demand. There are nice graphs that show the effects of different kinds of interventions.