税込み (zeikomi) means “including tax”

More examples

この店の商品は、すべて税込みで販売されています。ko no mise no shō hin wa su be te zei ko mi de han bai sa re te i ma su

All the products in this store are sold with tax included.

Marks a price as covering the tax within the amount shown rather than adding it separately.

内税uchizei: Describes a price or charge that already includes the applicable tax.

示された金額が税を含んだ価格であること。shime sa re ta kin gaku ga zei o fuku n da ka kaku de a ru ko to

The compound 税込み (zeikomi, "tax included") joins 税 (zei, "tax") with 込み (komi, "included in"), a noun form related to 込む (komu, "to include").

The phrase 税込み (zeikomi) is useful when checking whether a displayed price is the amount actually paid at the register.