What was considered most unjust was that the purchaser was obliged to pay a high price for the salt and to buy at least the minimum amount of salt stipulated, irrespective of his actual needs.
Faktu, ka sāls nodoklis noteica ne tikai dārgāku cenu, bet arī minimālu pieļaujamo pirkuma daudzumu, kas parasti bija lielāks, nekā cilvēkiem bija vajadzīgs, daudzi uzskatīja par milzīgu netaisnību.