この額は税込みです。

この額は税込みです。

This amount includes tax.

この額(がく)は税込(ぜいこ)みです。

Kono gaku wa zeikomi desu.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

額 (がく)

picture (framed); amount or sum (of money)

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

税込み (ぜいこみ)

tax included (e.g. price); before tax (e.g. salary)

です (です)

be; is

Readings: ガク、ひたい

Meanings: forehead, tablet, plaque, framed picture, sum, amount, volume

Reading: ゼイ

Meanings: tax, duty

Readings: -こ.む、こ.む、こ.み、 -こ.み、こ.める

Meanings: crowded, mixture, in bulk, included, (kokuji)