A self-directed precious metals IRA lets you hold physical gold, silver, platinum, and palladium inside a tax-advantaged retirement account. Most holders put their entire metals budget into gold. Some include silver. Fewer than one in ten actually use all four IRS-approved metals. This guide covers the IRS purity rules for each metal, how investors structure different allocation frameworks within a precious metals IRA, the historical price relationships between the four metals, and which companies currently offer all four.
A multi-metal IRA allocation divides the precious metals portion of a self-directed IRA among the four IRS-approved metals: gold (minimum 99.5% purity), silver (99.9%), platinum (99.95%), and palladium (99.95%), under IRS Publication 590-A and Internal Revenue Code Section 408(m). Gold typically anchors the largest share. Silver, platinum, and palladium add exposure to different industrial demand cycles. The IRS sets no required ratio, so exact allocations depend on individual goals and a licensed financial advisor.
IRS Rules: Which Metals Qualify for a Precious Metals IRA?
The IRS permits four metals inside a self-directed IRA under IRS Publication 590-A and Internal Revenue Code Section 408(m). Each metal must meet a minimum fineness (purity) standard. The physical coins or bars must be produced by an approved government mint or a qualifying refinery listed on approved exchange lists (NYMEX/COMEX).
| Metal | IRS Min. Purity | Common IRA-Eligible Forms | IRC Reference |
|---|---|---|---|
| Gold | 99.5% (.995) | American Gold Eagle (statutory exception at 91.67%), Canadian Maple Leaf, PAMP Suisse bars | IRC §408(m)(3)(A)(i) |
| Silver | 99.9% (.999) | American Silver Eagle (statutory exception), Canadian Maple Leaf, .999 bars from approved refiners | IRC §408(m)(3)(A)(ii) |
| Platinum | 99.95% (.9995) | American Platinum Eagle, bars from NYMEX/COMEX-approved refiners | IRC §408(m)(3)(A)(iii) |
| Palladium | 99.95% (.9995) | Canadian Palladium Maple Leaf, bars from NYMEX/COMEX-approved refiners | IRC §408(m)(3)(A)(iv) |
American Gold and Silver Eagles receive a statutory purity exception. Congress named them eligible despite falling slightly below the standard .995/.999 floor. All other coins and bars must meet the fineness standard exactly. Check your custodian’s approved product list before purchasing.
One rule applies to all four metals without exception: the physical metal cannot be stored at home or in a safe you control. It must be held at an IRS-approved third-party depository under a qualified custodian. FINRA has published a specific investor alert about home-storage IRA marketing schemes, which the IRS treats as prohibited transactions under IRC §4975. Violating this converts the entire account to a taxable distribution.
The Four IRS-Approved Metals: Demand Drivers and Characteristics
Understanding what moves each metal helps account holders see why their price histories differ. The four metals do not move in lockstep, though they share common traits: all trade in U.S. dollars and all respond to global economic conditions and investor sentiment.
Common Allocation Frameworks Used Within Precious Metals IRAs
The IRS imposes no requirement on how much of each metal a precious metals IRA must hold. Investors and their financial advisors set their own ratios based on goals, time horizon, and comfort with price volatility. The three frameworks below are drawn from industry practice. They describe what some investors do; they are not recommendations. Whether any framework fits your retirement situation is a decision for a licensed financial advisor.
- Gold: 90%
- Silver: 10%
- Platinum: 0%
- Palladium: 0%
Two metals only. Gold anchors; silver adds some industrial demand exposure. Compatible with companies that offer only gold and silver (including Augusta Precious Metals). Simpler to manage; fewer custodian fees for additional metal types.
- Gold: 70%
- Silver: 20%
- Platinum: 5%
- Palladium: 5%
All four metals represented. Gold remains dominant. Small platinum and palladium positions add exposure to auto-catalyst and industrial demand cycles. Requires a custodian that offers all four IRS-approved metals.
- Gold: 50%
- Silver: 30%
- Platinum: 10%
- Palladium: 10%
Heavier silver, platinum, and palladium weighting. These metals have historically shown larger percentage price swings than gold. More account-level volatility in both directions. Requires a custodian offering all four metals plus acceptance of lower liquidity for platinum and palladium.
The Gold-to-Silver Ratio: Background
The gold-to-silver ratio describes how many ounces of silver it takes to buy one ounce of gold at current spot prices. Based on LBMA historical price data, the ratio averaged roughly 60:1 over the past 100 years but has ranged from under 20 (1980) to above 120 (2020). Some investors who have decided to hold both metals watch this ratio when sizing their relative positions. No data supports the ratio as a reliable predictor of where either metal’s price is headed.
Historical Price Correlations Among the Four Metals
Price correlation measures how closely two assets move together. A value of 1.0 means they move in perfect lockstep; 0 means no relationship; a negative value means they tend to move in opposite directions. None of the four IRS-approved metals maintains a perfectly stable correlation over time. Market conditions, supply disruptions, and shifts in industrial demand all affect the relationships. The table below reflects approximate 10-year rolling correlations based on LBMA price data and Bloomberg commodity indices through 2024.
Past performance is not a guarantee of future results. Correlations are historical and will change.
| Metal Pair | Approx. 10-Year Rolling Correlation | Key Relationship |
|---|---|---|
| Gold / Silver | ~0.80 (high positive) | Both trade as monetary metals; silver shows larger percentage moves |
| Gold / Platinum | ~0.55 (moderate positive) | Industrial demand component separates platinum from gold’s cycles |
| Gold / Palladium | ~0.40 (moderate positive) | Auto-catalyst dependence and Russian supply create distinct cycles |
| Silver / Platinum | ~0.60 (moderate positive) | Industrial demand overlap ties them more closely than gold/platinum |
| Silver / Palladium | ~0.45 (moderate positive) | Different end markets (EVs vs. catalytic converters) keep correlation moderate |
| Platinum / Palladium | ~0.65 (moderate-high positive) | Both are PGMs with auto-catalyst overlap; prices diverged sharply 2016-2023 |
Gold and silver have the highest historical correlation of the four. Adding platinum or palladium introduces more differentiation in price movement relative to a gold-only or gold-silver account, though all four remain positively correlated over most extended periods. No allocation among these four metals eliminates the shared risk of a broad precious metals price decline.
Which Gold IRA Companies Offer All Four Metals?
Not every precious metals IRA custodian or dealer offers all four IRS-approved metals. Platinum and palladium require specialized sourcing, approved products, and in some cases separate storage. Before opening an account, confirm directly with the company which metals they currently support for IRA purchases.
Augusta Precious Metals
Founded 2012. Money Magazine Best Overall Gold IRA Company 2022-2026. BBB A+ rated with zero complaints. Augusta specializes in gold and silver IRAs. Their salaried, non-commissioned educators walk you through a simple Learn, Talk, Decide process with no sales pressure. Industry-reported minimum around $50,000. Investopedia Most Transparent Gold IRA Company 2022-2026.
Metals: Gold and silver. Platinum and palladium not currently listed on Augusta’s public offerings. If you want all four metals, see Birch below.
Birch Gold Group
Trusted by 40,000+ Americans since 2011. Headquartered in Iowa. BBB A+ and AAA Business Consumer Alliance rated. Birch offers gold, silver, platinum, and palladium IRAs, making them one of the few companies supporting all four IRS-approved metals in a single account. Endorsed by Ron Paul, Dan Bongino, Megyn Kelly, and others. Industry-reported minimum around $10,000.
Metals: Gold, Silver, Platinum, Palladium. Storage at Delaware Depository, Brink’s, International Depository Services, and Texas locations.
Noble Gold Investments
16,000+ investors, $2.5 billion safeguarded. Based in Encino, CA. Noble’s marketing references industry experience going back to 2003. Noble offers gold and silver IRAs with their own Texas-based depository as a differentiator for US-based storage. Industry-reported minimum around $20,000. Confirm platinum and palladium availability directly with Noble for your specific account.
Gold and silver confirmed. Texas depository differentiator. Verify additional metal availability at account opening.
Metal Availability by Company
| Company | Gold | Silver | Platinum | Palladium | Min. (Industry-Reported) | BBB |
|---|---|---|---|---|---|---|
| Augusta Precious Metals | ✓ | ✓ | Not listed | Not listed | ~$50,000 | A+ |
| Birch Gold Group | ✓ | ✓ | ✓ | ✓ | ~$10,000 | A+ |
| Noble Gold Investments | ✓ | ✓ | Confirm directly | Confirm directly | ~$20,000 | A+ (industry-reported) |
Opening a Multi-Metal Self-Directed IRA: Process Overview
Setting up a precious metals IRA that holds more than one metal follows the same core sequence as any self-directed IRA. The steps below are an overview. Your specific custodian will have their own paperwork, timelines, and approved product lists.
Select an IRA custodian that offers self-directed accounts and specifically supports the metals you want to hold. Confirm which of the four metals they offer before starting any application. Not all custodians handle platinum or palladium for IRA accounts.
New IRAs can be funded by cash contribution (subject to annual IRS limits per IRS IRA FAQ), or by rolling over an existing 401(k), 403(b), or traditional IRA. A direct trustee-to-trustee transfer avoids the 60-day rollover clock and the 20% mandatory withholding. Consult your tax advisor on the method that applies to your situation.
Once funded, you direct the custodian to purchase specific IRS-approved coins or bars. Your company specialist will present available products. Confirm that each product meets the fineness requirements in IRC §408(m) before committing to a purchase.
The purchased metals ship directly to an IRS-approved third-party depository. You do not take physical possession. Storage fees vary by depository and by metal type. Platinum and palladium can carry higher per-unit storage rates than gold or silver due to lower inventory volume at most facilities.
The IRA custodian files Form 5498 annually with the IRS reflecting the account’s fair market value. Each metal is valued at its spot price as of the end of the tax year. Your tax professional can walk you through how this integrates with your overall retirement account reporting.
Required Minimum Distributions (RMDs) begin at age 73 for traditional IRAs under current IRS rules (IRS Publication 590-B). Distributing physical metal requires coordination with the custodian and depository. Discuss RMD timing and method with your tax advisor well in advance of when they become mandatory.
Frequently Asked Questions
Can I hold all four IRS-approved metals in one self-directed IRA?
Yes, if your custodian supports all four. A single self-directed precious metals IRA can hold gold, silver, platinum, and palladium at the same time, as long as each purchase meets the IRS fineness standards in IRC §408(m)(3). The metals are stored separately at the IRS-approved depository and carry individual valuations and storage fees. Confirm which metals your custodian offers before opening an account.
Does the IRS require a minimum allocation to any single metal?
No. The IRS sets purity and storage rules for each eligible metal but imposes no minimum percentage requirement for any one metal within an IRA. The only IRS-imposed minimums relate to contribution limits and RMD amounts. How you distribute funds among gold, silver, platinum, and palladium is between you and your financial advisor.
What is the gold-to-silver ratio and how do investors use it?
The gold-to-silver ratio tells you how many ounces of silver equal one ounce of gold at current spot prices. Per LBMA historical data, the ratio has averaged roughly 60:1 over 100 years but has ranged from under 20 (in 1980) to above 120 (in 2020). Some investors who have decided to hold both metals watch this ratio when reviewing their relative positions. The ratio is not a reliable predictor of where either metal’s price is headed. Past performance is not a guarantee of future results.
Is palladium harder to include in an IRA than gold or silver?
In practice, yes. Palladium is a smaller market with fewer IRS-approved coins and bars available. Not every precious metals IRA custodian or dealer offers palladium. Storage costs can be proportionally higher than gold due to lower inventory volume at depositories. Birch Gold Group is one of the few widely documented companies offering all four IRS-approved metals, including palladium, within IRA accounts. Always confirm availability and current fee structure directly with the custodian before including palladium in an IRA plan.
Can I roll over a 401(k) into a multi-metal precious metals IRA?
Generally yes, using a direct trustee-to-trustee rollover from a qualified plan to a self-directed IRA. A direct rollover avoids the 60-day clock and the mandatory 20% withholding that applies to indirect rollovers. IRS Publication 590-A covers rollover rules in detail. Your tax advisor can confirm whether your current employer plan permits an in-service distribution or whether you need to wait until separation from service before rolling over.
Are platinum and palladium historically more volatile than gold inside an IRA?
Based on LBMA price data, platinum and palladium have shown larger percentage price swings than gold over comparable time periods. Their smaller markets and more concentrated industrial demand make them more reactive to supply disruptions and manufacturing cycle changes. Past performance is not a guarantee of future results. Discuss your tolerance for price volatility with a licensed financial advisor before including these metals in a retirement account.
Does adding silver to a gold IRA meaningfully change overall account volatility?
Gold and silver have historically shown a high positive correlation of approximately 0.80 over 10-year rolling periods, based on LBMA and Bloomberg data. Because they tend to move in the same direction, adding silver to a gold IRA does not substantially reduce account-level volatility. Silver’s smaller market size typically produces larger percentage price moves in both directions. This does not mean silver is a bad addition, but the case for including it rests on industrial demand exposure, not on reduced account-level volatility. Past performance is not a guarantee of future results.
What storage costs should I expect for a four-metal precious metals IRA?
Storage fees vary by custodian and depository. Industry-reported rates run from roughly 0.5% to 1.5% of account value annually, or a flat annual fee per account. Platinum and palladium can carry higher per-unit storage costs than gold or silver due to lower volume at most facilities. Some custodians also charge per-metal fees when you add additional metal types to an existing account. Always request a complete, itemized fee schedule before opening an account. Do not rely solely on marketing materials when comparing costs.
Is home storage of IRA precious metals legal?
No. IRS rules under IRC §4975 require all IRA-owned precious metals to be held at an IRS-approved third-party depository under a qualified custodian. Storing IRA metals at home or in a personal safe constitutes a prohibited transaction. The consequence is that the IRS treats the entire IRA as fully distributed, triggering ordinary income taxes on the full value plus potential early withdrawal penalties. FINRA has published a specific investor alert warning about home-storage gold IRA schemes because the marketing for these arrangements is common and the IRS rule is not always clearly communicated by sellers.
How do Required Minimum Distributions (RMDs) work with a multi-metal precious metals IRA?
Traditional precious metals IRAs are subject to the same RMD rules as any traditional IRA under IRS Publication 590-B. Starting at age 73, you must take a minimum distribution each year based on the account’s fair market value and IRS life expectancy tables. For a multi-metal IRA, the account is valued at current spot prices for each metal held. Distributions can be taken in cash (the custodian sells the metal) or in kind (physical metal delivered to you). Each method has different practical considerations and potential tax consequences. Consult your tax advisor well before you reach RMD age to plan the right method for your situation.
Sources and Methodology
This guide is based on IRS publications, FINRA regulatory guidance, industry data from the World Gold Council, Silver Institute, and LBMA, and partner facts verified against company public websites (last confirmed May 2026 in the Goldiew editorial database). No non-public affiliate, unverified, or affiliate-provided internal claims were used as factual sources in this content.
- IRS Publication 590-A: Contributions to IRAs
- IRS Publication 590-B: Distributions from IRAs
- IRS IRA Frequently Asked Questions
- FINRA: Home-Storage Gold IRA Alert
- SEC: Ten Things to Consider Before Making Investment Decisions
- World Gold Council: Gold Demand Trends
- Silver Institute: Supply and Demand Data
- LPPM: Platinum and Palladium Good Delivery Standards
- LBMA: Historical Precious Metal Prices
- Better Business Bureau: Company Ratings
Methodology: Company facts (founding year, BBB rating, customer count, metals offered) were verified against each company’s public website and cross-referenced with the the Goldiew company verification records. Correlation figures are approximate 10-year rolling values from LBMA and Bloomberg data through 2024 and will change over time. Minimum investment figures are industry-reported and not stated on company home pages; confirm directly with the company. Consult a licensed financial advisor and tax professional before making any IRA allocation decisions.