言っとくが

just so you know

→ 言う

phrase Common #4,783

just so you know A casual contraction of 言っておくが, often used to introduce a warning or something the speaker wants to make clear.

JA: 言っとくが、今日は手伝えない。

EN: Just so you know, I can't help today.

Just so you know...

— フォーリング・ダウン (1993)

Just so we're clear, I don't do leftovers.

— ほんとうのピノッキオ (2019)