Open Bar vs Beer and Wine Only: What It Costs
A full open bar runs $40–$90 per person. Beer and wine only runs $25–$45. For 100 guests, that's a gap of roughly $1,500 to $4,500 — enough to move a photographer, a band, or fifty guests' worth of catering onto or off your list.
The interesting part is that the liquor itself accounts for very little of that difference. Bartender ratios, glassware, mixers, and insurance do most of the work. Understanding where the money actually goes is what lets you pick a middle option instead of choosing between the two extremes.
Below is the full cost breakdown, the four hidden line items, and a decision framework by event type. For quantities rather than pricing, the party drink calculator sizes your order, and the complete alcohol guide covers the per-person math.
The headline numbers
| Bar type | Per person, catered | 100 guests |
|---|---|---|
| Beer and wine only | $25–$45 | $2,500–$4,500 |
| Beer, wine, signature cocktail | $30–$55 | $3,000–$5,500 |
| Full open bar, house spirits | $40–$70 | $4,000–$7,000 |
| Full open bar, call brands | $60–$90 | $6,000–$9,000 |
| Premium / top-shelf | $90–$120 | $9,000–$12,000 |
Add 20–25% on top of every figure for service charge and gratuity. That is not optional and rarely negotiable.
A discrepancy worth knowing about
Industry professionals often quote the liquor upgrade as a $10–$15 per person difference — that's the figure cited by planners in The Knot's open bar cost guide. But published package pricing routinely shows a $15–$45 gap between tiers.
Both are true. The $10–$15 is the marginal cost of adding spirits to a bar you're already staffing. The larger gap appears because full-bar packages usually bundle upgrades — better wine, more bartenders, real glassware — that aren't strictly about the liquor. When you compare quotes, ask what changes between tiers besides the spirits. Sometimes the answer is "nothing meaningful," and the upgrade is genuinely cheap.
Where the money actually goes
The cost split
| Component | Beer & wine | Full open bar |
|---|---|---|
| Alcohol | 45% | 40% |
| Bartender labor | 22% | 28% |
| Glassware and rentals | 12% | 15% |
| Mixers, garnishes, ice | 6% | 12% |
| Insurance and licensing | 5% | 5% |
| Margin | 10% | 10% |
Staffing is the biggest single driver
Beer and wine
One bartender per 75 guests. Pouring a beer takes four seconds and a glass of wine takes six. Two staff comfortably handle 150 people.
Full bar
One bartender per 50 guests, sometimes one per 40 for a cocktail-heavy crowd. A properly made cocktail takes 60 to 90 seconds — measured, shaken, strained, garnished. Same guest count, twice the labor.
At $35–$50 an hour per bartender for a five-hour event plus setup, that's $350–$500 per person on staff. Going from two bartenders to three or four is $700–$1,000 of the difference right there.
Mixers and garnishes are not free
A full bar needs cola, diet cola, tonic, soda water, ginger ale, juices, limes, lemons, olives, cherries, bitters, and syrups. Then it needs more ice, because cocktails consume it. And more glassware, because a rocks glass, a highball, a coupe, and a flute are four different rentals.
Beer and wine needs a wine glass, a beer glass, and ice for chilling. That's the whole list.
The four hidden line items
Service charge
18–25% of the subtotal, applied automatically. It's usually not gratuity — ask explicitly whether a tip is expected on top, because in many contracts it is.
Corkage
If you're bringing your own alcohol, expect $1.50–$3 per beer and $15–$25 per bottle of wine or spirits. Sixty bottles of wine at $20 corkage adds $1,200, which erases most of what BYO was meant to save. Confirm the policy in writing before you count on it.
Champagne toast
$1–$5 per person as a separate line. Have the bar pour sparkling from the existing wine selection instead and it costs you nothing.
Bar minimums and overtime
Many venues set a minimum spend. If your crowd drinks less than projected, you pay the minimum anyway — which quietly makes the cheaper package pointless. Overtime is billed at 1.5× across every staff member on the floor.
Worked example: 100 guests, 5 hours
Same venue, same evening, same guest list.
| Line item | Beer & wine | Full open bar |
|---|---|---|
| Alcohol | $1,400 | $2,400 |
| Bartenders | $700 (2) | $1,400 (4) |
| Glassware and rentals | $400 | $900 |
| Mixers, ice, garnishes | $200 | $700 |
| Subtotal | $2,700 | $5,400 |
| Service charge (22%) | $594 | $1,188 |
| Total | $3,294 | $6,588 |
| Per person | $33 | $66 |
Difference: $3,294. For the same guest count and the same number of drinks served.
The middle options nobody quotes you
This is where most of the value in this decision sits. The choice isn't binary.
Beer, wine, and two signature cocktails
Cost: $30–$55 per person. You get the feel of a full bar without stocking eight spirits. Two cocktails means two base spirits, a predictable mixer list, and drinks that can be batched in advance — which speeds service enough that you may not need the extra bartender.
The most effective single cost lever on this page. Pick one spirit-forward drink and one lighter one, and most guests won't register the absence of anything else.
Limited-hours full bar
Full bar during cocktail hour, beer and wine after dinner. Guests get the cocktail they want when they most want it, and consumption after dinner is mostly beer and wine anyway. Saves 25–35%.
Drink tickets
Two to four per guest, then a cash bar. Controls spend precisely, though it reads as cheap at a wedding in some regions and is completely normal in others. Know your crowd.
Consumption bar
You're billed per drink poured: $9–$15 for cocktails, $7–$11 for beer and wine. Cheap if your guests are light drinkers, dangerous if they aren't.
The risk is real. Guests average about six drinks over five hours, so at $10 a drink you're at $60 per person — worse than most flat packages. Set a spend cap in the contract, or don't use this structure.
The pour-size trap
Consumption bars bill per drink, but a "drink" isn't standardised. NIAAA defines a standard drink as 12 oz of beer, 5 oz of wine, or a 1.5 oz shot. A cocktail with two spirits in it may be billed as two drinks. Ask how mixed drinks are counted before you sign a consumption contract.
Which one suits your event
| Situation | Choose |
|---|---|
| Budget is the binding constraint | Beer and wine |
| Formal evening reception | Full bar or signature cocktails |
| Daytime event | Beer and wine |
| Crowd under 35 | Beer, wine, seltzer, one cocktail |
| Crowd over 55 | Full bar — spirits skew older |
| Corporate event | Beer and wine |
| Under 50 guests | Full bar (labor difference is small at this size) |
| Outdoor summer event | Beer and wine — nobody drinks whiskey at 90°F |
Under 50 guests, just do the full bar
The bartender ratio barely changes below 50 people — you need one either way. That removes the largest cost difference, and the marginal spend on spirits is genuinely the $10–$15 per person planners quote. At this size the upgrade is close to free.
Over 150 guests, the math flips hard
Every incremental bartender is $350–$500, and the ratio difference between 1:50 and 1:75 compounds. At 200 guests you're staffing four versus three, plus a much larger mixer and glassware order. This is where beer and wine saves real money.
Self-stocking versus a package
| Approach | 100 guests, 5 hours |
|---|---|
| Self-stocked beer and wine + hired bartenders | $1,600–$2,200 |
| Catered beer and wine package | $2,500–$4,500 |
| Self-stocked full bar + hired bartenders | $2,400–$3,400 |
| Catered full open bar | $4,000–$7,000 |
Self-stocking roughly halves the cost — when the venue allows it, which many don't. It also puts purchase, transport, chilling, ice, and cleanup on you. The 100-guest shopping list covers exactly what to buy if you go that route, including the ice and mixer quantities most people forget.
Ask your retailer about returns on unopened bottles. If they accept them, self-stocking gets meaningfully less risky.
Fitting it into the whole budget
Bar service is typically 8–12% of a wedding budget, and catering is another 20–30%. Together they're often close to 40% of everything you spend, and both scale directly with guest count.
That makes the bar decision one of the few places where a single choice moves thousands. The other is service style on the food side — the buffet versus plated comparison follows nearly identical logic, where labor rather than ingredients drives the bill. Run both against your total with the wedding budget calculator before committing to either.
Before you choose, get both packages quoted and ask one question: what changes between these tiers besides the spirits? If the answer is a better wine list and an extra bartender, you're being quoted an upgrade, not a bar. If it's genuinely just the liquor, the full bar is probably worth it — especially under 50 guests, where it costs almost nothing extra.
