Would an employer take into consideration a preplanned family vacation?
This is a very common situation. You may want to mention that you do not expect to get paid for the week, or ask about the possibility of going negative on vacation hours if you can’t afford to go without pay. The employer commonly calls this out in the job offer letter, i.e. “Company ABC agrees that you will be entitled to take one week (with/without pay) during May xx – xx for your preplanned vacation.” Easy, and we’d rather know up front than have you surprise us post-hire.