TIP // CALC
Big tables come with big checks — and their own tipping rules. This calculator is pre-loaded for a group of 8 sharing a $400 dinner at the standard 18%, but it handles any party size from 6 to 20 and any bill amount. See the full total with tip, exactly what each person pays, and how an automatic gratuity changes the math.
A table of six to twenty people is a completely different tipping situation from a standard dinner, for one structural reason: most US restaurants automatically add an 18% gratuity for parties of six or more. That single fact reshapes every decision a group makes — whether to tip at all, how much, who pays, and whether the percentage even matters. If the restaurant applies an automatic gratuity, the tip decision is made for you: 18% on the pre-tax subtotal, and no additional tip is expected beyond a small cash extra for genuinely exceptional service. If no auto-gratuity appears on the receipt, the group should collectively decide on 18-20% before the bill arrives, rather than leaving it to the moment with cards out and everyone looking at the total.
The second structural fact is that the per-person cost of the tip is tiny, which means there is no reason to argue about it. On a $400 bill for eight people at 18%, the tip is $72 — exactly $9 per person. At 20% it is $80, exactly $10 per person. The entire 15% to 25% range spans only $5 per person, which is why large groups almost always settle quickly on 18% or 20% and move on: the arguments about "who ordered the wine" dwarf the arguments about the percentage by a factor of ten.
The third fact is that service for a large table is genuinely harder than for a couple. One or two servers are managing dozens of dishes, separate drink orders, dietary modifications, timing across a table of different courses, and usually multiple checks. The effort scales with the number of guests in a way that the check amount may not capture — a $400 bill for eight people is less per person than a $400 bill for two, but the serving effort for eight is far higher. This is the practical reason the industry itself settled on 18% for large parties, and why a voluntary 20% on a large table reads as appropriate rather than extravagant.
Automatic gratuity — often abbreviated on receipts as "auto-grat," "grat," or "party gratuity" — is a charge the restaurant adds to the bill for tables of six or more guests. The typical amount is 18%, though some venues use 20% or, in fine dining, 22%. It appears as a line item, usually near the bottom of the receipt, and it functions as the entire tip for the table: the restaurant collected it and distributes it to the serving staff. You are not expected to add any additional tip on top of an automatic gratuity, and at most restaurants the server will explicitly tell you it is already included.
How to read the receipt line. The label matters enormously. An item called "gratuity" or "auto-grat" goes to the staff and settles the tip question. An item called "service charge," "administrative fee," or "catering fee" is ambiguous — it may go to staff, or it may be retained by the restaurant to cover event costs, and the law does not require restaurants to disclose which. If you are unsure, asking the server "does the service charge go to you?" is a normal, accepted question. If the charge does not reach the staff, a small cash tip of 15-18% of the food subtotal, or a flat $5-10 per person, given directly to the server, is the fair thing to do.
Auto-gratuity math on real checks. On a $400.00 bill for eight, an 18% auto-gratuity is exactly $72.00, included in the $472.00 pre-tax total you see. With 8% tax of $32.00, the all-in total is $504.00 and each person pays $63.00 — no additional tip needed. On a $600.00 bill for ten, 18% auto-grat is $108.00, the pre-tip total is $708.00, tax is $48.00, the all-in total is $756.00, and each person pays $75.60. The calculator above shows these numbers live for your actual bill size and party count.
On a group check, the only number that triggers real conversation is what each person contributes. The tables below show the per-person math for the two most common large-party sizes — 8 people and 12 people — across the standard tip percentages, using realistic group bills. All figures assume an 8% sales tax, tipped on the pre-tax subtotal.
Group of 8 — $400.00 bill:
| Tip % | Tip total | All-in total (with 8% tax) | Each person pays | Tip / person |
|---|---|---|---|---|
| 15% | $60.00 | $492.00 | $61.50 | $7.50 |
| 18% | $72.00 | $504.00 | $63.00 | $9.00 |
| 20% | $80.00 | $512.00 | $64.00 | $10.00 |
| 22% | $88.00 | $520.00 | $65.00 | $11.00 |
| 25% | $100.00 | $532.00 | $66.50 | $12.50 |
For eight people, the entire spread from 15% to 25% is $5.00 per person — the price of a single drink at the same restaurant. The gap between the two realistic options (18% and 20%) is exactly $1.00 per person, which is why groups rarely debate it.
Group of 12 — $600.00 bill:
| Tip % | Tip total | All-in total (with 8% tax) | Each person pays | Tip / person |
|---|---|---|---|---|
| 15% | $90.00 | $738.00 | $61.50 | $7.50 |
| 18% | $108.00 | $756.00 | $63.00 | $9.00 |
| 20% | $120.00 | $768.00 | $64.00 | $10.00 |
| 22% | $132.00 | $780.00 | $65.00 | $11.00 |
| 25% | $150.00 | $795.00 | $66.25 | $12.50 |
Notice that the per-person totals for a 12-way split of $600 land on the exact same numbers as an 8-way split of $400 — because $600 ÷ 12 = $400 ÷ 8 = $50 per person before tax and tip. The takeaway is a handy rule of thumb: a group dinner works out to roughly $63 per person (including tip and 8% tax) whenever the pre-tax bill is about $50 per person and the group tips 18%.
For quick reference, here is the 18% tip and all-in total (with 8% tax) for the range of bills a large group typically produces, from a modest $200 group check up to a $1,200 event bill. If your bill falls between these rows, the calculator above computes the exact numbers.
| Group bill | 18% tip | Pre-tip total (with 8% tax) | All-in total |
|---|---|---|---|
| $200.00 | $36.00 | $216.00 | $252.00 |
| $300.00 | $54.00 | $324.00 | $378.00 |
| $400.00 | $72.00 | $432.00 | $504.00 |
| $500.00 | $90.00 | $540.00 | $630.00 |
| $600.00 | $108.00 | $648.00 | $756.00 |
| $800.00 | $144.00 | $864.00 | $1,008.00 |
| $1,000.00 | $180.00 | $1,080.00 | $1,260.00 |
| $1,200.00 | $216.00 | $1,296.00 | $1,512.00 |
One useful pattern: because 18% of any bill is exactly 20% minus 2%, an 18% tip on any round amount is clean — $36 on $200, $72 on $400, $180 on $1,000. And since most groups split the bill evenly, dividing the all-in total by the party size gives each person's share instantly: $1,260 ÷ 10 = $126 per person for a $1,000 bill at 18%.
The math of the tip is easy; the social math of splitting a group check is where it gets interesting. For large groups, the fairest systems are the ones that separate the two questions — what everyone owes for food, and what the group tips:
Method 1: One check, even split (best for most groups). Everyone agrees to split the food and drink evenly, the bill is divided by the party size, and each person contributes the same tip amount. This works when consumption is reasonably similar across the table — the standard for team dinners, birthday outings, and family gatherings. Even if one person's entrée was $38 and another's was $24, the $14 difference is usually acceptable in exchange for zero friction at the end of the night. The per-person math from the calculator above handles this in one step.
Method 2: Separate checks with a pooled tip (best when consumption differs a lot). When some people ordered premium wine, multiple cocktails, or expensive entrées while others had a soda and a salad, the fair approach is separate checks — each person pays for exactly what they ordered — with the whole table agreeing on one tip percentage (18% or 20%) applied to each check. Each person then tips their percentage on their own pre-tax subtotal. This preserves fairness on food while keeping the tip consistent for the server. The one pitfall is that someone must collect the separate tips and verify they total the agreed percentage of the combined food subtotal.
Method 3: One person pays, everyone Venmos (best for events and auto-gratuity). For large tables with an automatic gratuity already applied, the cleanest system is for one person to cover the whole bill and everyone else to Venmo, Zelle, or PayPal their share immediately, with the tip included in the split. Because the auto-gratuity is already a line item on the total, no separate tip conversation is needed — just divide the all-in total by the party size and collect. Tools like the Bill Split Calculator work perfectly for this even split, and this page's calculator shows the per-person figure live.
When a large group crosses into private-room dining, event catering, or celebration territory, the rules shift again. Private dining rooms and event packages almost always add a service charge — commonly 18% to 22% — that is printed in the contract or on the final invoice. That service charge is frequently the entirety of the gratuity arrangement, but it is not guaranteed to reach the serving staff, so the first question to ask the event coordinator is whether the service charge goes to the staff. If it does, no additional tip is needed (though a cash tip for the dedicated server or event captain is a nice gesture for exceptional service). If it does not, a gratuity of 15-18% on the food portion, or a flat amount agreed in advance, is appropriate.
On very large bills — $1,000 and up — most groups apply a graduated approach rather than a flat percentage to the entire total. A common pattern is 20-25% on the first $500-1,000 of food and 10-15% on the remainder, or a flat percentage on the food subtotal only, excluding any service charge, room rental, or AV fees already on the invoice. The calculator above is designed for this: enter the food-and-drink subtotal as the bill amount, leave out room fees and service charges, and the per-person tip math stays accurate. On a $1,200 event check for twelve people, 18% on the $1,200 food subtotal is $216 — $18 per person — which is a reasonable budget for even a celebration dinner.
Finally, remember the practical rule for any group of six or more: agree on the tip before the bill arrives. Groups that settle the percentage in advance — "we're doing 20%, everybody good?" — skip the awkward end-of-meal conversation entirely, and the math is always clean because the calculator has already done the work.
Most US restaurants automatically add an 18% gratuity for parties of six or more, and many extend that to groups of five or even four at upscale venues. When an automatic gratuity is applied, it appears as a line item on the receipt — usually labeled 'gratuity,' 'auto-grat,' or 'service charge for parties of 6+' — and it is the entire tip: you are not expected to add more on top unless the service was genuinely exceptional. Because the industry standard is 18%, the auto-gratuity on a $400 group bill is exactly $72.00, which is the same amount you would leave voluntarily at 18% — the difference is simply that the restaurant decided it for you.
An 18% tip on a $400.00 group bill is exactly $72.00, making the combined total $472.00 before tax. With 8% sales tax of $32.00 added, the pre-tip total becomes $432.00 and the all-in total with tip is $504.00. Split between 8 people, each person pays exactly $63.00. The mental math: 20% of $400 is $80 (divide by 5), and 2% of $400 is $8, so 18% is $80 - $8 = $72. For group bills, the per-person figure is what matters most — and on an 8-way split, $63 per person including tip and tax is a very manageable number for a nice group dinner.
For a large group, 18% is the widely accepted baseline and 20% is a generous gesture for excellent service. The per-person difference is tiny: on a $400 bill, 18% is $72 (or $9 per person on an 8-way split) and 20% is $80 ($10 per person) — just $1 more per person. Because serving a table of eight to twenty guests is genuinely harder than serving a couple — coordinating many orders, separate modifications, steady drink refills, and usually multiple checks — the effort justifies erring toward 18% at minimum, and many groups choose 20% simply because the extra $1 per person buys a much happier server. If the restaurant has already added an 18% auto-gratuity, that is the settled amount and no further decision is needed.
The automatic gratuity on a large-party check is the entire tip, and tipping on top is not required — and many servers will actually stop you. The critical caveat is to read the label carefully: an item described as 'gratuity' or 'auto-grat' goes to the serving staff and settles the tip question; an item described as a 'service charge' or 'administrative fee' may be kept partly or wholly by the house, in which case a small cash tip directly to your server is appropriate. If the service was truly exceptional, a modest cash addition of $5-10 per person handed directly to the server is the polite way to go above the auto-gratuity without inflating a percentage nobody agreed to.
On a $400.00 pre-tax bill with 8% sales tax ($32.00) and an 18% tip ($72.00), the all-in total is $504.00 and each of the 8 people pays exactly $63.00: $50.00 for their share of the food, $4.00 in tax, and $9.00 in tip. At 20% ($80.00 tip), each person pays $64.00 — just $1.00 more. If some people drank more or ordered premium items, the fair approach is to split food costs proportionally or have each person cover their own tab while the tip is pooled: collect each person's food share, then have everyone contribute the same tip amount per person, which is the cleanest way to reward the server fairly regardless of what each guest ordered.
When a large group splits across multiple cards or individual checks, the tip should still reflect the whole table's service. The standard approach is to agree on the percentage first — 18% or 20% of the pre-tax food total for the table — and then either: (1) one person covers the entire bill and everyone Venmos them their share including tip, (2) the server splits the check and each person tips their percentage on their own portion, or (3) the group pools cash for a single tip. Option 1 is the most reliable for a clean tip because it treats the whole table as one check; option 2 works when the server splits accurately, but everyone must remember the tax basis. Whatever the method, avoid each person tipping a flat $10-20 without agreeing on the percentage first — that reliably undertips or overpays.
No — for large groups, just as for any other check, the standard is to tip on the pre-tax food and drink subtotal, not the total that includes sales tax. Tax is collected by the restaurant for the government; it is not service your server performed. On a $400.00 bill with 8% tax, tipping 18% pre-tax means $72.00 on the $400.00 subtotal; tipping 18% on the $432.00 taxed total would be $77.76 — $5.76 more for no additional service. On a large bill the gap is larger than on a small one, which is exactly why it matters: the pre-tax vs post-tax difference at 18% is $0.58 on a $100 bill but $5.76 on a $400 bill, and $11.52 on an $800 event check.
More tools for splitting and tipping, especially useful for group dining: