Most couples build their wedding budget from vendor quotes. The trouble is that quotes rarely show the whole price. Service charges, tax, tips, delivery fees and "small" add-ons show up later, often after you've already committed.

None of these costs are scams. They're just easy to miss. Here's where they hide, grouped by where you'll run into them, and what to do about each.

Venue and catering

This is where the biggest surprises live, because these are usually your biggest line items and percentages scale with them.

Service charges

Many venues and caterers add a service charge, often a percentage of the food and beverage total, on top of the quoted price. It's frequently taxed too. Ask what the percentage is and whether it goes to the staff, because it often doesn't.

Sales tax

Quotes are usually pre-tax. On a large catering bill, tax alone can be a meaningful number. Add it to every quote before you compare.

Cake-cutting and corkage fees

If your cake comes from an outside bakery, the venue may charge per slice to cut and serve it. Bringing your own wine or champagne can trigger a per-bottle corkage fee.

Rentals that aren't in the package

Chairs, linens, chargers, glassware, a dance floor, heaters and lighting are often extra, especially at outdoor or raw-space venues. Ask for a list of what's on site and what you'll need to rent.

Overtime

If the party runs past your contracted end time, the venue, bar staff, photographer and DJ may all bill overtime at the same moment. Know each hourly rate in advance.

Vendor extras

Vendor meals

Your photographer, videographer, DJ and planner work through dinner, and most contracts require you to feed them. Caterers usually offer a cheaper vendor meal, but you have to count those people in your numbers.

Travel fees

Vendors who travel beyond a set distance often charge mileage, and for destination weddings, flights and hotels. This is easy to forget when a vendor's base price looks like a bargain.

Delivery, setup and breakdown

Florists, rental companies and bakeries frequently charge separately to deliver, set up and come back late at night to pack up.

Tips

Tips usually aren't in any quote, but most couples tip at least some vendors, such as servers, bartenders, drivers, and hair and makeup artists. Decide your approach early, put it in the budget, and have envelopes ready on the day.

Attire and beauty

Alterations

Almost every dress and suit needs alterations, and they're almost never included in the price. Bustles, hemming and taking in can add up, so ask the shop for a typical range when you buy.

Hair and makeup trials

The trial is often billed separately from the wedding-day service. So is an early start time or travel to your getting-ready location.

Accessories

Veils, shoes, jewelry, cufflinks, a second outfit for the reception: each is modest on its own and noticeable together.

Paper, postage and the small stuff

Postage

Square envelopes, heavy invitation suites and wax seals can need extra postage. Take a fully assembled invitation to the post office and weigh it before you buy stamps for everyone.

Day-of paper

Programs, menus, place cards, a seating chart and signage often aren't part of the invitation order.

Marriage license and officiant

The license has a fee, and officiants often charge for the ceremony, a rehearsal and travel.

Thank-you notes and gifts

Thank-you cards, wedding party gifts and welcome bags are usually budgeted last, if at all.

How to protect your budget

You can't avoid every extra cost, but you can stop them from being surprises.

Keep a contingency. Many planners suggest setting aside around 5–10% of your total budget for things you didn't see coming.
Turn every quote into a true total. Add tax, service charges, delivery, travel and tips before you compare vendors or sign.
Ask "what costs extra?" out loud. Then get the answer in writing. Our list of questions to ask every wedding vendor covers the ones that matter.
Read the payment schedule. Final payments often land in the weeks before the wedding, all at once. Plan for that cash flow.
Track actuals, not just estimates. Update your budget every time you sign a contract or pay a deposit, so you see overruns while you can still adjust.

That last one is where most budgets slip. Coco's wedding budget tracker keeps estimates, actual costs and payments side by side, and Coco can break down vendor quotes so the extras are visible before you sign. If you're just getting started, the wedding planning checklist shows what to book when.

Hidden costs checklist

Before you finalize your budget, check you've accounted for:

Service charges and sales tax on venue and catering
Cake-cutting, corkage and rental items
Overtime rates for every hourly vendor
Vendor meals
Travel, delivery, setup and breakdown fees
Tips
Alterations, beauty trials and accessories
Postage and day-of paper
Marriage license and officiant fees
Thank-you notes and gifts
A 5–10% contingency

Plan for the extras now, and your budget will hold up on the day. Try Coco free to track every cost in one place.