Earlier quoted context omitted.
The work is added value. That is how VAT works. Edit: I guess that if you're paying a salary to someone in your household staff who can repare the smartphone you only need to buy (and pay VAT on) the replacement glass. But I don't think this is what you meant. I think that you just don't understand how VAT works. If you bring your phone to a repair shop in Belgium the 21% VAT will be applied on the whole bill, parts…
For the proverbial repair shop, supplies cost 50€ and the repair costs 100€. 50€ is left to the repair shop. In a country with 21% VAT, the supplier will be paid 60,50€, and the end client will have to pay 121€ for the repair. The repair shop now owes 21 - 10,50 = 10,50€ in VAT to the tax authorities. But the repair shop still has 50€! Assuming we are in Belgium and all of the benefit is used to pay the salary, we wi…
Still, work will be cheaper compared to the price of products.
In my example, the 50€ will be used to pay the salary, and the net salary will still be 20€ while the price of the phone will increase by 21%.