It’s entirely up to you. Although tipping in Vietnam isn’t mandatory, tour guides always appreciate a tip for their hard-working effort to make your group tour an unforgettable adventure. So if your tour guide goes above and beyond what you expect, then you may consider tipping to show them you had an incredible time. The amount is down to personal preference but it’s common to leave a tip of £2-5 per day or 5-10% of the trip cost.