Wedding vendor payment-due tracker
Tracks every wedding vendor's deposit, balance and due date for couples, and reminds them before each payment is due.
The problem
Wedding budget sheets sold on Gumroad pitch themselves at the stress of tracking deposits and keeping up with vendor payments. Couples seem to pay a few dollars for spreadsheets because the big wedding planners cover budgets and guests but not a simple 'what do I owe whom, by when'. One popular planning binder lists around 897 sales at $9.99, so there is some willingness to pay for this kind of organisation.
Who has it: Engaged couples and DIY or family-run wedding planners managing 8–15 vendors across several payment dates.
Who pays
The couple, as a one-time purchase, because missing a balance deadline can cost a booking or a late fee. · $9–15 one-time per wedding
One-time purchase after a free 3-vendor tier. Sell through Pinterest and wedding-planning subreddits, where planning spreadsheets already circulate.
What to build first
- Add vendors with contract total, deposit paid, balance due and due date
- Calendar and list view of upcoming payments with a running 'still owed' total
- Email or SMS reminder 7 and 2 days before each due date
- Share view with a partner or parent
- Attach a contract photo or PDF to each vendor
- CSV export for the couple's own records
Suggested stack
Next.js Supabase Stripe Resend Tailwind
Starter prompt
Paste it into Cursor, Claude Code, Lovable or Bolt and iterate from there.
Build a simple web app called DueDate Wedding. A couple signs up with email magic link and creates a wedding with a date. They add vendors (name, category, contract total, deposit paid, balance amount, balance due date, notes, optional file upload). Show a dashboard with total contracted, total paid, total still owed, and a timeline of upcoming payments sorted by date, with overdue items in red. Add a 'mark paid' button that updates totals. Let the couple invite a partner by email to view and edit. Send reminder emails with Resend 7 days and 2 days before each balance due date, using a scheduled Supabase function. Add CSV export. Gate the app behind a one-time $12 Stripe payment after 3 vendors. Mobile-first, clean, friendly design.What could go wrong
Free spreadsheets and big platforms like Zola and The Knot cover this, and a low price caps revenue. Seasonal demand and a short usage window per customer make growth depend on steady acquisition.
Where we found it
- Wedding Budget Planner Google Sheets ($3) — The seller says tracking deposits and vendor payments leaves couples feeling overwhelmed by numbers and deadlines.
- Offbeat Wed Planning Binder ($9.99) — A spreadsheet bundle with a vendor contacts tab shows 897 sales and 4.8 stars, so couples do pay for organisation tools.
- Ultimate Wedding Planner Bundle ($3) — The bundle's vendor organizer tab is sold as tracking contacts, deposits and dates in Google Sheets.