Find the gratuity line before you calculate anything
The first field is a question rather than a number for a reason. Group transportation quotes are written in different ways. Some list the hourly charge and then a separate driver gratuity line, often as a percentage. Some fold a service charge into the total, which may or may not go to the driver. Others say nothing, which usually means gratuity is left to the group. You cannot tell which you have without reading the document.
If you leave the answer on "I have not checked yet," the calculator reminds you that tipping a full percentage on top of an existing gratuity line means paying it twice. If you answer "Yes," the results relabel the amount as an optional extra, because at that point anything more is a personal thank-you and not an expected cost.
When the wording is unclear, ask directly: is driver gratuity on this quote, what percentage, and does the full amount go to the driver? Ask for the answer in writing. This site does not state a gratuity policy here because the terms that apply to you are the ones on your written quote. If you are still comparing totals, the budget calculator has its own gratuity field so you can model a quote with and without the line.
Choosing a percentage without overthinking it
The slider starts at 18% because that sits in the middle of what people commonly tip for chauffeured service in the United States, which tends to run from about 15% to 20%. The calculator lets you go from 0% to 30% and its note is plain about it: tipping customs vary and the amount is your decision.
A few things reasonably push the number up. Chicago winters mean a driver may be loading a group in sleet, managing a slushy curb, and keeping the cabin warm between stops. A night with many stops in tight nightlife districts such as River North or Wrigleyville is harder work than one highway transfer. Handling luggage, waiting through a delayed dinner without complaint, or helping an older relative on and off the vehicle at a wedding are the kinds of things people like to recognize.
Things that should not push the number up include service you did not receive. If something went wrong with the vehicle or the schedule, raise it with the company separately; the tip is about the driver's work. If gratuity is already on your quote, moving the slider to a small figure such as 5% gives you a modest cash extra for standout service without doubling what you already paid.
Splitting the tip across a group, and why the tool rounds up
The "People chipping in" field divides the tip evenly, and the per-person figure is always rounded up to the next whole dollar. Rounding up is deliberate. If sixteen people each owe $13.50 and everyone sends $13, the organizer is short $8. Rounding up means the collection comes in a few dollars over, and the surplus simply goes to the driver.
Enter the number of people actually paying, not the number riding. The guest of honor at a birthday party or the couple at a wedding usually does not chip in, so a group of fifteen may have fourteen payers. If you have not pinned down the headcount yet, the group size calculator estimates how many invitees will show up.
Group size changes how much this matters. Among inquiries quoted as limousine for 2024–2025 event dates, 81% of usable passenger counts fell in the 1–10 passengers band. That comes from a national dataset of quote requests across the booking network this site belongs to, not from Chicago alone. With a small limo group, each share is large enough that people notice, so agree on the percentage before the night. With a 30-passenger bus, the share per person is small and the real challenge is collecting it, which is an argument for gathering the money ahead of time.
Cash at the curb or gratuity on the card
The rounding checkbox exists for cash. It raises the tip to the next multiple of $5 and then shows the effective percentage so you can see what rounding did. On a large fare the change is tiny: rounding $216 up to $220 moves 18% to 18.3%. What you gain is a number that can be paid in twenties without anyone digging for singles at 1 AM on a dark street.
If you go the cash route, collect it before the event. Payment apps make this easy: the organizer gathers each share in advance, withdraws the total, and puts it in an envelope.
The alternative is adding gratuity to the card on file. Ask whether that is possible, whether the full amount reaches the driver, and whether it must be arranged in advance. Get the answer on your written quote or in an email. Card gratuity suits corporate groups that need a receipt for a company event, and it suits organizers who are already splitting the whole bill through one person. Either way, decide before pickup and tell the group which method you chose.
