How to Run a Silent Auction for a Small Nonprofit (Without the Chaos)

The bidding sheet for the weekend getaway package had 12 bids on it. When the auction closed, someone pointed out that three of the bids were in the same handwriting. Nobody could prove anything. The item went to the highest bidder, but the awkward conversation lasted three months.

The fix is simple: bid numbers instead of names on the sheet, assigned at check-in. One small process change eliminates an entire category of problem. That is what this guide is for.

Item Procurement — Start Here

Everything else in a silent auction depends on having items worth bidding on. Give yourself 6 to 8 weeks before the event to solicit donations.

Who to ask:

Local restaurants — gift cards in the $25–$75 range are easy for them to donate and easy for bidders to value
Service providers — lawn care, house cleaning, oil changes, pet grooming; people bid on things they were going to buy anyway
Vacation rentals and cabin owners in the area — a weekend getaway is almost always your top-earning item
Sporting goods stores, wineries, cooking studios, golf courses — experience-based items outperform physical goods at most small events
Local professionals — accountant consultation, photography session, personal training package

What makes an item work:

A clear retail value. Vague items ("basket of assorted goodies") do not get bid up. "Two-night stay at Cedar Lake Cabin, valued at $280" gets bid up.
Get a written description and confirmed retail value from every donor before the event.
If a donor cannot give you a retail value, research it yourself and note the source.

How many items:

15 to 20 items for a small event (annual dinner, clubhouse fundraiser)
30 or more for a larger community event

Low-value items: Group items under $30 into themed baskets — "Movie Night" (popcorn, candy, streaming gift card), "Local Coffee Lover" (coffee shop gift card, mug, bag of beans). A $45 basket gets more bids than three separate $15 items.

Pricing — Starting Bids and Bid Increments

Setting prices wrong is how you end up with an item that gets zero bids, which is worse than selling it below value. An unbid item makes the whole table look unsuccessful.

Starting bids:

Start at 30 to 40% of retail value for most items
Experiences (spa package, winery tour) can start at 40 to 50% — bidders expect to pay for them
Items with narrow appeal (very local, niche) should start lower to guarantee at least one bid

Bid increments:

$5 minimum increment for items under $100
$10 to $25 increment for items over $100
Pre-printing the increment on the bid sheet removes ambiguity and speeds up checkout

Buy It Now price:

Set at 80 to 90% of retail value
Gives impulse buyers a way to lock up an item they want without the anxiety of getting outbid
Works especially well on high-demand items — a Buy It Now on a weekend getaway will often sell in the first hour

Do not start bids at 60% or 70% hoping to get full retail. You will get one bid and a disappointed item donor.

Bid Sheets

Your bid sheet is doing more work than it looks like. It is your legal record of the winning bid.

What every sheet needs:

Item name and number
Clear description and retail value
Starting bid and bid increment (pre-printed)
Two columns: Bid Number and Bid Amount
10 to 15 bid lines minimum — running out of lines at a popular item is a real problem

Use bid numbers, not names. This is the fix for the opening scenario. Assign every attendee a bid number at check-in. They write that number on every sheet they bid on, not their name. It eliminates the handwriting accusation entirely, and it protects bidder privacy.

Formatting matters:

Print in at least 14-point font — many of your bidders are over 50 and reading in dim event lighting
Laminate or use cardstock for the item display card; keep the bid sheet on plain paper so it can be pulled quickly at close
Pre-number the bid amount lines with the starting bid filled in on line 1 to anchor the first bidder

Check-In and Bid Numbers

A smooth check-in sets the tone for everything that follows.

What to collect at the door:

Full name
Phone number or email address (for reaching winners who leave early)
Assigned bid number — sequential, starting at 101 to distinguish from item numbers

Keep the check-in list. It is your donor and attendee record for the year, and it is how you contact winners after the event if they left before you tallied results.

Practical notes:

Have a dedicated check-in table, separate from the door ticket table if you have both
Pre-print bid number cards or wristbands — writing them by hand under pressure creates errors
Write bid numbers large enough that volunteers can read them from a few feet away when verifying sheets

Display Setup

How you lay out the tables determines whether people stop and bid or walk past.

Traffic flow:

Tables arranged in a loop or horseshoe so bidders can move freely without creating a one-way bottleneck
No dead ends — if people have to backtrack past a table they already stopped at, you get fewer second looks

Each item display should include:

Item name and a clear description (not just the donor's name)
Confirmed retail value — "Valued at $150" printed on the card
Starting bid and bid increment
The bid sheet, attached or anchored so it does not slide off the table

Placement strategy:

High-value items near the entrance or in a featured section — they draw people in and set expectations
Group items loosely by category (experiences, gift cards, services) so bidders can find what they came back for
The 50/50 raffle table works well near the silent auction area — people who are already in a spending mindset will buy tickets

Lighting: Dark tables get fewer bids. If your venue has uneven lighting, put a battery-powered accent light on your high-value display. It sounds minor. It is not.

Running the Auction

At the start:

Announce the closing time clearly over the PA before bidding opens
Explain bid numbers — some attendees will never have seen this system before
Mention the Buy It Now option if you are using it

During the auction:

Post at least two volunteers near the tables to answer questions, prevent bid sheet removal, and watch for issues
Announce the closing time again 30 minutes before close and again at 15 minutes
If you have a large auction, consider closing in waves — food and services first, then experiences and high-value items — so checkout does not happen all at once

At close:

Announce clearly over the PA: "The silent auction is now closed. Please step away from the bid sheets."
Pull bid sheets from the tables immediately — do not leave them accessible after close
Have volunteers at every table at the moment of close; a bid placed after closing creates a dispute you do not want

Checkout

This is the step that falls apart most often. Long checkout lines, winners who already left, no change in the cash box, no receipt for items that will be needed for taxes.

Tallying:

Have two people verify each bid sheet independently before recording the winner
Write the winner's bid number and winning amount on each sheet before the sheets leave the tallying table
Cross-reference each winning bid number against your check-in list to get the winner's contact information

Payment:

Set up a dedicated checkout table, separate from the main event activity
Accept cash and personal checks at minimum
Ideally, offer a payment link — a card or bank transfer option eliminates the "I don't have enough cash" problem and the "let me find an ATM" delay

Potluck gives you a payment link for checkout so winners can pay by card or bank transfer instead of hunting for an ATM. Transactions are recorded automatically.

Issue a receipt for every transaction — required for any donation or payment over $250, and good practice for all of them
Items not picked up the night of the event: hold for two weeks, then donate or retain per your bylaws

Announcing winners:

Read winners from the PA as tallying completes, or post a printed list at the checkout table
Call or text winners who already left — this is why you collected contact information at check-in

After the Auction

The work that happens in the week after the event determines whether your item donors come back next year.

Thank-you notes to item donors:

Send within one week
Include the final bid amount — donors want to know their item did well
A handwritten note or a personal email outperforms a form letter for this audience
This is the moment to ask if they would like to donate again next year; the answer rate immediately after a successful event is much higher than a cold ask six months later

Public reporting:

Post total raised on your Facebook page within 48 hours
Tag the venue and any major donors who agreed to public recognition
A photo of the display tables or the checkout line outperforms a text-only post

Records to keep:

Complete bid sheets with winning bids
Check-in list with bid numbers
Itemized list of items, donors, starting bids, and final sale prices
Gross receipts and net proceeds
Receipts issued

Your winner list and donor list are the foundation of next year's auction. Repeat bidders and repeat item donors are your easiest asks — they already said yes once.

If you want a cleaner way to handle auction payments and donor records, Potluck sets it up in 5 minutes. Free to start.

Looking for more ideas? See the full list: Fundraising Ideas for Small Nonprofits and Community Clubs.