expression
cash only, prices as advertised; no bargaining
A set phrase used in commercial contexts to mean that the listed price is final and no credit or negotiation is accepted. Literally 'cash, no haggling'.
See also: 掛け値
当店は現金掛け値なしで販売しております。
Our shop sells on a cash-only, no-bargaining basis.
現金掛け値なしの商売をしている。
We run a business with no credit and no haggling.
掛け値 means 'haggling' or 'overcharging'; 現金掛け値なし is the full phrase meaning 'cash only, no bargaining'.
Compound of 現金 (cash) + 掛け値 (haggling, inflated price) + なし (without). The phrase is a fixed commercial expression.