IRS-compliant tax receipts (FMV vs paid quid-pro-quo)

Every gala participant who pays anything (winning bid, buy-now, fund-a-need pledge, ticket purchase) gets a receipt. The receipt is IRS-compliant under the quid pro quo rule (Pub 1771): the deductible portion is the amount paid above FMV (Fair Market Value), and that split must appear on the receipt.

Example:
Guest wins a Caribbean trip with FMV $4,200 by bidding $5,500. Tax receipt shows:
• Total paid: $5,500
• Goods/services value (FMV): $4,200
• Deductible contribution: $1,300

Drafting:
Wally drafts every receipt at end of night (or whenever you click "Generate receipts"). Each one includes the org's EIN, contribution date, item descriptions, FMV, paid amount, and the deductible split.

Delivery:
Receipts deliver as a PDF email to each donor. The PDF carries the Verified-by-Turtini QR stamp + SHA-256 fingerprint so the donor (or their accountant) can confirm authenticity from /verify.

Storage:
Every receipt is stored on the Contact record indefinitely. End-of-year tax letter (consolidating multiple gifts across galas, online donations, etc.) pulls from the same data — no double work.

Edge cases:
• Buy-it-now items — FMV is what the item is worth, paid is the buy-it-now price; deductible is the difference.
• Pure donations (fund-a-need with no goods/services) — full amount is deductible; no FMV split needed.
• Auction items at-or-below FMV — no deductible portion; the receipt notes "no portion of this transaction is tax-deductible."