# Dinosaur Auction Tax Puzzle

> A Montana rancher's $6-9m dinosaur sale could trigger Social Security tax penalties without counting against his earnings test.
- Title: Dinosaur Auction Tax Puzzle · 24/7 Wall St. | Shortify
- Summary: A Montana rancher's $6-9m dinosaur sale could trigger Social Security tax penalties without counting against his earnings test. A 64-year-old Montana rancher…
- Keywords: social security, dinosaur fossil, montana ranch, sotheby's, earnings test, capital gains, fossil sale, tax penalty, Dinosaur, Auction, Tax, Puzzle
- Source: 24/7 Wall St. — https://247wallst.com/personal-finance/social-security/2026/10/11/a-dinosaur-found-on-a-montana-ranch-is-headed-to-auction-for-6-million-to-9-million-a-one-off-fossil-sale-can-be-taxable-without-counting-against-his-social-securitys-earnings-test
- Author: Gerelyn Terzo
- Published: 2026-10-12T01:00:02+00:00
- Read time: 1 min
- Topics: social security, dinosaur fossil, montana ranch, sotheby's, earnings test, capital gains, fossil sale, tax penalty
## Dinosaur Skeleton Up for Auction
A nearly 20-foot predator nicknamed Jodi for the rancher who discovered it in Montana goes up for sale at Sotheby's New York on October 27 with an estimated price tag of $6 million to $9…
## Retired Rancher Faces Tax Puzzle
A 64-year-old Montana landowner who started Social Security early and then finds a skeleton weathering out of a hillside his family has owned for decades suddenly faces a tax puzzle that could reshape his Social…
## Social Security Earnings Test
Retirees who claim before full retirement age face an earnings test where Social Security withholds $1 for every $2 earned above $24,480 in 2026.
## Capital Asset vs. Business Income
A sale of genuine personal property counts as capital gains, not business income, unless the seller runs a fossil business with regular sales.
## Tax Implications for Fossil Sale
A single $24,000 Social Security check could become taxable if the fossil sale counts as income, triggering up to 85% of benefits being taxed.
## How the Sale Affects Social Security
The IRS may classify the fossil as capital gains, but a single sale does not settle the classification and could still trigger tax penalties.
## What Happens Next
The rancher must consult a tax professional to determine if the fossil sale counts as income or capital gains before the auction.
## Key takeaway

A 64-year-old Montana rancher may face Social Security tax penalties if his dinosaur fossil sale counts as income rather than capital gains.