Your cost basis is the foundation of every tax calculation when you sell precious metals. Getting it right means you pay only what you owe — nothing more. Getting it wrong can mean overpaying taxes or triggering an audit.
Disclaimer: This is educational content, not tax advice. Consult a qualified tax professional for your specific situation.
What Is Cost Basis?
Your cost basis is the total amount you paid to acquire your precious metals, including:
All of these costs are added together to form your adjusted cost basis.
- Purchase price — the amount you paid for the metal itself
- Premiums — the markup above spot price
- Shipping costs — delivery fees to your location or vault
- Commissions or transaction fees — any dealer charges
- Insurance during transit — if you paid for shipping insurance
Cost Basis Methods
When you have purchased the same type of metal at different times and prices, you need to choose a method for determining which specific lot you are selling:
- Specific identification — you designate exactly which coins or bars you are selling, based on purchase date. This gives you the most control over your tax outcome
- FIFO (First In, First Out) — the IRS default. Assumes you sell your oldest holdings first
- Average cost — available for some investments but generally not applicable to physical metals
Record-Keeping Essentials
- Keep every invoice and receipt — paper and digital
- Record the date, quantity, product, price per unit, and total cost for each purchase
- Note the spot price on the date of purchase — useful for calculating premium paid
- Store records for at least 7 years — the IRS statute of limitations
- If you sell, record the sale date, price received, and buyer
Example: Calculating a Gain
| Detail | Amount |
|---|---|
| **Purchase price (2019)** | \$1,450/oz |
| **Premium paid** | \$65 |
| **Shipping** | \$25 |
| **Total cost basis** | \$1,540 |
| **Sale price (2024)** | \$3,200/oz |
| **Selling costs** | \$30 |
| **Net proceeds** | \$3,170 |
| **Capital gain** | \$1,630 |
Pro Tips
- Spreadsheet tracking — maintain a simple spreadsheet with columns for date, product, quantity, price, fees, and total basis
- Photograph your metals — include serial numbers on bars for specific identification
- Segregated storage — if you store at a vault, segregated (allocated) storage makes specific identification easier than commingled storage
- Ask your dealer for records — reputable dealers maintain transaction history and can provide documentation