Open Bar Wedding Cost: How Much Is an Open Bar at a Wedding?

Open bar wedding cost per person and in total

Zola's Wedding Cost Index puts bar services at $5,541 on average nationally, with most couples spending $4,400 to $6,600. Zola is the only source we found for that average and for several other figures below, including the 18% to 22% service charge, the 75-to-100-guest bar-station ratio, the beer-and-wine savings, the drinks-per-hour rule, and the city comparison.

Per-person prices come from more than one place. Zola lists $15 to $90, depending on location, drinks, and service style. Here Comes The Guide says $15 to $45 or more for an open bar, and FindBartenders, a bartender booking site, puts a full open bar at $35 to $50. All three are national planning ranges, so your local quotes decide.

Here is the formula to use with any quote. Bar total = bar price + bartender labor + service charge + tax + glassware, ice, and mixers + liquor liability insurance, if required.

The bar price is either the per-person package times your guest count or the number of drinks times the price per drink. Mark any line a quote leaves out as still open, and keep it outside the total. Food is a separate line, and the catering cost guide covers it.

Open bar vs cash bar: six bar options compared

Zola sorts open bars into house, premium, and top-shelf tiers, and a higher tier raises the per-person price. Skipping alcohol is a real choice too: of three example weddings in The Knot's 2026 study, the $10,000 wedding served no alcohol, while the $34,000 and $75,000 weddings had a full open bar.

How much alcohol for a wedding

Start with drinks, then convert to bottles. In the United States, one standard drink contains about 0.6 fluid ounces of pure alcohol, according to NIAAA. That equals a 12-ounce regular beer at 5% alcohol, a 5-ounce glass of wine at 12%, or a 1.5-ounce pour of 40% spirits. NIAAA notes that standard drink amounts may not match customary serving sizes, so a generous cocktail can hold more than one.

Federal rules at 27 CFR 5.203 authorize 750 mL and 1.75 liter bottles, among other sizes, for distilled spirits. One fluid ounce is about 29.6 mL, so a 750 mL bottle holds about 25.4 ounces, or 16 full 1.5-ounce pours. A 1.75 liter bottle holds about 59.2 ounces, or 39 full pours. For wine, we assume a 750 mL bottle and 5-ounce glasses, which gives about 5 glasses per bottle.

Next, estimate how many drinks guests will have. Zola reports that bartenders commonly plan for two drinks per guest in the first hour, then one drink per hour after that. None of the sources we checked give a government or academic basis for that rule, so treat it as an assumption and replace it with your own estimate.

Lower it for a crowd with many non-drinkers or a daytime reception, and raise it if your guests plan to dance until last call.

Example numbers for the table below: five hours of service, so six drinks per guest, split 50% wine, 30% beer, and 20% spirits, rounded up to whole bottles. For beer, we assume 12-ounce servings, cases of 24, and a half-barrel keg of 15.5 gallons.

That keg holds 1,984 ounces, or about 165 12-ounce pours. These beer counts are arithmetic from those assumptions. Swap in your own mix.

117 guests, three ways to pay for the bar

Example numbers follow. The guest count is The Knot's 2025 average of 117. The 20% service charge sits inside Zola's 18% to 22% range, the 8% tax is near the Tax Foundation's 7.53% average combined sales tax rate for mid-2026, and $45 an hour sits inside Thumbtack's $40 to $60 for a private bartender.

The rest are example assumptions: five hours and six drinks per guest (702 drinks), a $35 per-person package and $8 per drink on consumption (both assumed to include bartenders and setup, so confirm that), tax on the drinks or alcohol only, $12 wine bottles, $1.50 beers, $30 spirits bottles of 1.75 liters, $200 for mixers and ice, and 2 bartenders at $45 an hour for 6 hours, including setup.

• Package bar:

  117 guests times $35 is $4,095. Add the 20% service charge ($819) and 8% tax on the package ($327.60). Calculated total: $5,241.60, or $44.80 per guest.

• Consumption bar:

  702 drinks times $8 is $5,616. Add the 20% service charge ($1,123.20) and 8% tax on the drinks ($449.28). Calculated total: $7,188.48, or $61.44 per guest.

• Bring your own with hired bartenders:

  71 bottles of wine ($852), 211 beers ($316.50), 4 bottles of spirits ($120), mixers and ice ($200), and bartenders ($540). Add 8% tax on the $1,288.50 of alcohol ($103.08). Calculated total: $2,131.58, or $18.22 per guest.

The bring-your-own total looks cheapest, but it leaves out lines this example can't price: corkage, glass and bar rentals, a host liquor liability policy if the venue asks for one, and your time buying, chilling, and hauling drinks. Those lines are still open, so they stay outside the total. It also works only where the venue allows outside alcohol.

What else is on the bar bill

Zola says gratuity and service charges often add 18% to 22% to a bar bill. FindBartenders puts gratuity and service fees at 10% to 20%, corkage at $10 to $20 per wine bottle or $50 per keg, and specialty glassware at $1 to $2 per glass. Here Comes The Guide suggests tipping bartenders 10% to 20% of the alcohol bill when the contract does not include it.

For staffing, Zola and a bartending company quoted by Thumbtack both use one bartender per 50 to 75 guests. Here Comes The Guide suggests at least one bar and two bartenders per 100 guests.

Thumbtack says hiring a bartender typically costs $342 to $689, with a $485 national average. That hiring price covers more than the bartender's pay: O*NET lists a 2025 median wage of $16.51 an hour. Zola says professional bartenders must carry liability insurance.

• Service charge:

  ask for the percentage, what it covers, whether it is taxed, and who receives it, in writing.

• Bartenders:

  ask how many are included for your guest count and whether setup and breakdown hours are billed.

• Tax, glassware, ice, and mixers:

  ask for the local tax rate and what the package includes. Our 8% is a placeholder.

• Liquor liability:

  ask for the bartending company's certificate and whether the venue requires a separate event policy.

Cash bars and liquor licenses: a California example

This example covers California only. The City of San Rafael explains that a private person hosting a special event does not need a Daily License from California ABC, as long as the event is not open to the public, the alcohol and admission are free, and the premises are not a restaurant, bar, winery, or brewery.

California ABC issues daily licenses to qualifying nonprofit, charitable, civic, fraternal, religious, and political organizations. Its fees are $50 per day for beer and wine and $75 per day for a general license, and the form must arrive at least 10 days before the event.

So a free open bar at a private California wedding can fit that host exemption when every condition is met, while a cash bar means someone is selling. The sources we checked describe no daily license for a couple, so ask whether the venue or caterer holds the license that covers drink sales. Rules differ by state.

Check with your state's alcohol control agency or a local attorney before you plan a cash bar.

Is an open bar worth it? A break-even rule

Divide the per-person package price by the per-drink consumption price. The result is the break-even number of drinks per guest for the whole event. With a $35 package and $8 drinks, break-even is about 4.4 drinks per guest.

If guests will average fewer, consumption is likely cheaper. If they will average more, the package is likely cheaper and caps your risk. When both quotes use the same service charge percentage, the rule still holds after fees.

• Choose the package when your crowd will likely pass break-even.

  Under the drinks rule above, guests reach 5 drinks at four hours, already past 4.4 at these example prices.

• Choose consumption when many guests skip alcohol or the reception is short. Get the per-drink price, any minimum, and a spending cap in writing.

• Choose a limited bar when the full package pushes the bar line past your plan. Price both at the same guest count and hours.

How location and prices change the bar total

Zola says major metro areas typically charge 20% to 40% more than suburban or rural areas. Its example puts bar service for 150 guests at about $14,031 in New York City and about $4,375 in Milwaukee.

Divided by 150 guests, that is about $93.54 versus $29.17 per guest. National drink prices have been steady: the BLS consumer price index for alcoholic beverages away from home was 231.293 in August 2026 and 230.858 in August 2025, a rise of about 0.2%. The index shows the trend, and your package price comes from your quote.

Ways to lower bar cost without a cash bar

Zola suggests beer and wine only, an open bar during cocktail hour and dinner that switches to a cash bar for late-night dancing, house brands in mixed drinks, two signature cocktails instead of a full menu, and skipping a separate champagne toast. Bringing your own works only where the venue allows it, and you may still pay corkage and need professional bartenders.

• Shorten service:

  under the drinks rule above, each hour you cut removes one drink per guest. For 117 guests at $8 a drink, that is $936 less per hour on a consumption bar, before service charge and tax.

• Pause during dinner:

  ask whether the bar can close during the meal and whether that lowers the package price.

Questions to ask your venue or caterer about the bar

• Is bar service priced per person, on consumption, or with a minimum spend? What happens if guests drink more or less than planned?

• Can we bring our own alcohol? If so, what is the corkage fee, and do we have to use your bartenders?

• How many bartenders and bars are included for our guest count and hours?

• Is the service charge paid to staff as a tip? Is it taxed, and at what rate?

• Who holds the liquor license, and do you require a liability certificate or a host event policy?