A voluntary tip is an amount you choose. A service charge or automatic gratuity already added to a bill is a different line item. Before paying in Las Vegas, check which you are looking at, what is included and whether the payment screen is asking for an additional amount.
This guide explains the bill-reading decision. For suggested amounts across restaurants, luggage assistance, valet and housekeeping, use the separate Las Vegas tipping and service-budget guide.
Read the label and the actual payment terms
The IRS explanation, for federal tax classification, distinguishes a tip chosen by the customer from an imposed service charge. A required large-party charge can be a service charge even if called an automatic gratuity. Suggested tip calculations remain voluntary when the customer can choose any amount or leave the line blank.
That distinction does not tell you what every Las Vegas booking includes or settle a disputed bill. Check the menu, reservation terms and itemized receipt. Ask staff what a charge covers, whether gratuity is included and what any additional payment would represent before authorizing it.
| What appears | Useful check |
|---|---|
| A blank tip line with suggested percentages | Check the actual dollar amount and subtotal used before choosing. |
| An automatic gratuity or service-charge line | Ask what is already included before adding another gratuity. |
| A delivery, booking or other fee | Do not assume the fee describes a staff tip. |
| A prepaid dining or group package | Compare the confirmation with the final bill and identify any remaining charge. |
Work through the complete bill
Illustration only: assume $100 of food and drinks and a $9 tax amount. The $9 is an invented input, not a quoted tax rate or a calculation of tax on a particular service charge. The examples use the same stated tax amount to isolate the tipping choice.
| Assumed bill | Calculation | Total |
|---|---|---|
| No included service charge; chosen $20 tip | $100 + $9 + $20 | $129 |
| Included $18 service charge; no extra tip | $100 + $9 + $18 | $127 |
| Included $18 charge; another $5 intentionally added | $100 + $9 + $18 + $5 | $132 |
If you unintentionally add another $20 to the second bill, it becomes $147, with $38 in combined service charge and added tip. An extra amount may be your choice; the point is to make that choice knowingly. Check the real receipt’s tax, included charges and calculation basis rather than copying these assumed amounts.
Use a short check before tapping or signing
- Confirm the food, drinks, package or services match what you bought.
- Identify the tax and every added charge.
- Ask what any unclear charge means and whether gratuity is already included.
- Review the dollar amount of any further tip, including a screen’s selected preset.
- Check the final total and keep the receipt.
For shared meals, use the group-cost allocation and settlement guide. Record the complete bill once, then divide it under the group’s agreed rule. Repaying the person who paid is not another restaurant expense.
Keep gratuities separate from promised benefits
Do not treat a tip as a confirmed upgrade, faster car return, guaranteed drink or change in gambling results. Ask the venue about the actual service or purchase you want. A service problem is a reason to ask staff or a manager for an explanation.
The dinner-for-two worksheet helps budget the complete meal and journey. Keep voluntary gratuities, included charges and any prepaid amount visible so the same cost is not added twice.
IRS definitions and calculations checked October 16, 2026. Dollar examples are invented. No universal restaurant party-size rule, mandatory tip percentage, jackpot threshold or promise about staff pay is assumed.
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