---
title: "Auction FMV and Receipts"
slug: "auction-fmv-and-receipts"
updated: 2026-10-12T15:55:15Z
published: 2026-10-12T15:55:15Z
canonical: "docs.blackthorn.io/auction-fmv-and-receipts"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.blackthorn.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Auction FMV and Receipts

Receipts for auction purchases show fair market value (FMV) and the deductible amount per line. This is always on and has no switch.

## How the deductible amount is worked out

- Item: deductible is the price less FMV, never below zero. FMV is per unit times quantity.
- Item with no FMV: FMV defaults to the price, so deductible is 0.
- Raffle ticket: FMV equals the price, deductible 0.
- Pledge: deductible is the amount less any gift FMV from the giving level.
- Buyer premium: FMV equals the amount, deductible 0.
- Event ticket: FMV comes from the event item.

## Example

Two gala tickets at 100 (FMV 80), one lot won at 500 (FMV 300), 10 percent premium of 50, five raffle tickets at 20, and a 1000 pledge total 1850. FMV is 530 and the deductible amount is 1320.

## Receipt

- One consolidated receipt per bidder covers every document.
- FMV and Deductible columns show only when a line has FMV. Plain ticket receipts are unchanged.
- Payments over 7,500 USD with a deductible amount print the good-faith FMV statement.

              Where FMV lives

              

FMV is stored on the sales document line items and totals in the Payments package. Forge keeps its own snapshot as the receipt source.