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Nonprofit Auction Platforms
Silent AuctionsFund-a-NeedGala Bidding

Charity Auction Platform Development

Your Gala Platform Is Quietly Taking 5% Before You Pay Processing

0%
Platform Fees
No per-bid SaaS tax
<200ms
Bid Latency
Supabase Realtime
95+
Lighthouse Score
Mobile-first bidding
$0
Lost Pledges
Integrated payments
What Breaks When Your Auction Software Can't Keep Up — And What You Actually Own

Your auctioneer calls a paddle raise and the platform stalls for three seconds. Momentum dies. Donors refresh their phones. Your Fund-a-Need total flatlines while the software catches up. A charity auction platform is a custom web app that runs silent auctions, live bidding, and hybrid galas — mobile bidding, real-time updates, paddle raises, payment processing, automated tax receipts. Built custom, your nonprofit keeps full donor data ownership and cuts the 4–5% SaaS transaction fees that vanish before you see a dollar. On a $200K gala, that's $10K back in your budget before processing charges even start. Most organizations don't feel the loss until they try to switch vendors and discover years of bidder history locked behind an export paywall.

プロジェクトが失敗する理由

SaaS platforms take 4.9% of every dollar raised A $200K gala loses $10K to platform fees before you've paid a single processing charge.
Generic auction tools weren't built for Fund-a-Need paddle raise flows Live appeal momentum dies when the software can't keep up with your auctioneer's cadence.
Your donor data lives in a SaaS silo you don't control Switch vendors and you lose bidder history, giving patterns, and years of stewardship data you can't get back.
Bidding latency during peak gala moments means missed bids When updates lag, donors drop out of bidding wars — and your auction totals fall with them.
Manual post-event receipt generation is slow and it's easy to make mistakes Late or wrong tax receipts erode donor trust and create real compliance problems.
No connection between auction data and your CRM means staff spend weeks after every event manually reconciling bids, payments, and donor records. Staff spend weeks reconciling bids, payments, and donor records after every event

コンプライアンス

Real-Time Bid Engine

Supabase Realtime subscriptions push bid updates to every connected device in under 200ms. Outbid notifications fire instantly via push and SMS, keeping bidding wars alive.

Fund-a-Need Paddle Raise

A purpose-built live appeal interface with tiered giving levels, a real-time leaderboard, and a thermometer display. Your auctioneer controls the pace while donors tap to pledge from their phones.

Automated Donor Receipts

Stripe webhooks trigger tax-deductible receipt generation the moment payment clears. Every receipt includes the item's fair market value, amount paid, and your organization's EIN.

Row Level Security for Bid Privacy

Supabase RLS policies enforce sealed-bid and silent auction integrity at the database level. Bidders see their own bids and the current high — never competitor amounts until close.

PCI-Compliant Payments

Stripe Elements handle card data so your platform never touches sensitive payment information. Pre-authorized cards at registration eliminate unpaid winning bids entirely.

Post-Event Analytics

Dashboards show bid velocity, item performance, donor acquisition cost, and Fund-a-Need conversion rates. Export everything to CSV or sync directly to Salesforce and Bloomerang.

構築する内容

Cut SaaS platforms skimming 4.9% of every bid before processing fees start

Own your donor data outright — bidder profiles, giving history, payment records flow into your CRM via webhooks

Eliminate lag during Fund-a-Need paddle raises when your auctioneer's cadence outpaces software

Handle silent auctions, live lots, and Fund-a-Need paddle raises in one event without switching tools

Stop losing donor giving patterns and bidder history when you switch vendors

Deploy mobile bidding that works with a cocktail in one hand — watchlists, search, one-tap bid confirmation

Fix bidding latency during peak gala moments that kills auction momentum

Upload hundreds of auction items via CSV with images, fair market values, and buy-now pricing in minutes

End post-event reconciliation marathons when auction data won't sync to your CRM

Project live leaderboards and Fund-a-Need thermometers that update every second without refresh lag

Prevent late or incorrect tax receipts that erode donor trust and create compliance risk

Automate ticketing, QR check-in, table assignments, and pre-authorized payment cards in a single guest flow

私たちのプロセス

01

Auction Strategy & Schema Design

We map your event types — silent, live, hybrid, Fund-a-Need — and design the Supabase schema with tables for items, bids, donors, events, and receipts. RLS policies get defined here, before a line of code gets written.
Week 1
02

Real-Time Bidding Engine

We build the Supabase Realtime subscription layer, bid validation logic in Edge Functions, and the Stripe pre-authorization flow. Every bid is atomic — no race conditions, no duplicate charges.
Week 2-3
03

Auction Frontend & Gala Tools

Next.js auction catalog, mobile bidding interface, Fund-a-Need paddle raise screen, event check-in, and an admin dashboard so your team can manage items and watch bids come in live.
Week 3-5
04

Payments, Receipts & CRM Integration

Stripe checkout with automatic receipt generation, webhook-driven donor data sync to your CRM, and a post-event analytics dashboard with exportable reports.
Week 5-6
05

Load Testing & Launch

We simulate 500+ concurrent bidders hitting the platform during a live auction close — performance tuning, edge caching on Vercel, and 30 days of post-launch support to get you through your first event.
Week 7-8
Next.jsSupabaseSupabase RealtimeStripeVercelReact NativeEdge FunctionsRow Level Security

よくある質問

カスタム競売プラットフォームはSaaS vs.でどのようにお金を節約しますか？

SaaS プラットフォームはトランザクションごとに 4～5% を請求します。200,000 ドルのガラでは、支払い処理手数料さえ登場する前に 10,000 ドルが失われます。カスタムプラットフォームは、完全に所有する 1 回限りのビルドです。1 つまたは 2 つのイベントの後、それ自体が支払われます — 入札手数料なし、パーセンテージカットなし、予期しない更新なし。

プラットフォームはサイレント競売とライブFund-a-Needパドルレイズの両方を処理できますか？

はい。プラットフォームは、単一のイベント内で時限付きのサイレント競売、オークション司会者制御のライブロット、および Fund-a-Need パドル引き上げを処理します。あなたのオークション司会者は管理パネルから寄付レベルをトリガーし、ドナーは携帯電話から誓約します。リーダーボードと温度計はプロジェクション スクリーンでリアルタイムで更新されます。

入札更新は他のデバイスにどのくらい速く表示されますか？

200 ミリ秒未満。Supabase Realtime は WebSocket 接続を使用して、接続されているすべてのデバイスに入札更新を即座にプッシュします。入札超過通知は、プッシュおよびオプションの SMS を介して送信されます。500 以上の同時入札者でロードテストを行い、競売が終了して最も重要な瞬間にラグがゼロになるようにします。

ドナー領収書は自動的に生成されますか？

Stripe Webhook は支払いが確認された瞬間に領収書の生成をトリガーします。各領収書には、商品の説明、公正な市場価値、支払額、税控除可能な部分、および組織の EIN が含まれます。領収書はメールでドナーに送信され、監査証跡に必要な記録と共に入札者プロフィールに保存されます。

プラットフォームは既存のドナー CRM と統合されますか？

Webhook または API 同期経由で Salesforce、Bloomerang、DonorPerfect、およびその他の CRM との直接統合を構築します。入札者プロフィール、支払い履歴、競売参加、および寄付合計は自動的にドナー レコードに流れます — イベント後のスプレッドシート調整は必要ありません。

チャリティ競売プラットフォームの構築にはどのくらい時間がかかりますか？

サイレント競売、ライブ入札、Fund-a-Need、支払い、領収書、CRM 統合を備えた完全なプラットフォームには 7～8 週間かかります。サイレント競売とモバイル入札をカバーすることに焦点を当てた MVP は、4～5 週間で運用開始できます。どちらの方法でも、最初のライブ イベントをカバーするための 30 日間のローンチ後サポートが得られます。

Auction Platforms from $12,000
Fixed-fee. No per-bid charges. 30-day post-launch support.
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Next.js DevelopmentEcommerce DevelopmentCore Web Vitals OptimizationCore Web Vitals & Jamstack Guide

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