The Capital Gains and Tax Guide for Selling Best of the Mint 5 1907 Saint-Gaudens High Relief $20 Gold Coin and Silver Medal Set

Introduction: The Tax Side of Numismatic Investments You Can’t Ignore

Selling high-value collectibles comes with specific tax rules that most hobbyists ignore — until they get hit with an unexpected bill. I’ve spent over fifteen years advising collectors, dealers, and investors on the tax ramifications of numismatic acquisitions, and I can tell you one thing with absolute certainty: the IRS does not treat the sale of a 1907 Saint-Gaudens High Relief $20 Gold Coin the same way it treats the sale of a stock portfolio. If you’re planning to sell — or are considering liquidating a Best of the Mint 5 release — understanding those differences could save you thousands of dollars.

The Best of the Mint 5 (BOM 5) set, featuring the stunning 1907 Saint-Gaudens High Relief $20 Gold Coin paired with a commemorative silver medal, is one of the most anticipated releases in modern numismatics. With a mintage limit of just 15,000 units (Item Number: 26BM5), scheduled for release on September 24, 2026 — right at the close of the Mint’s fiscal year — this semiquincentennial tribute carries both historical gravitas and serious financial weight. At 31.1 grams of 99.99% fine gold and 30.61mm in diameter, this coin isn’t merely a collector’s piece. It is a capital asset with distinct tax consequences.

In this guide, I’ll walk you through everything you need to know about the tax implications of selling this set — from capital gains rates to 1099-K reporting thresholds, cost basis tracking, and the critical distinction between dealer and collector status.

Capital Gains Tax on Collectibles: Why Your Rate Could Be 28%

Collectibles vs. Long-Term Capital Gains

When most people think about capital gains tax, they think about the favorable long-term rate — 0%, 15%, or 20%, depending on income. But here’s where collectors get blindsided: the IRS classifies collectibles as a unique asset class under Internal Revenue Code Section 408(m). That means long-term capital gains on collectibles are taxed at a maximum rate of 28%, not the usual 20% maximum that applies to stocks and bonds.

In my experience grading and advising on high-end numismatic transactions, this is the single most overlooked tax issue. A collector who holds a 1907 Saint-Gaudens High Relief for more than one year and sells it at a substantial profit might expect to pay 15% or 20%. Instead, they could face up to 28%. That difference on a $10,000 gain is $1,300 — money that goes straight to the Treasury instead of back into your collection budget.

Short-Term Capital Gains

If you sell the BOM 5 set within one year of purchase, the profit is taxed as ordinary income. For collectors in the top federal bracket, that means up to 37%. Given that the Mint’s pricing for this one-ounce gold piece plus silver medal will likely range from approximately $2,400 to $3,200 at release — depending on spot gold prices and premiums — and that secondary market prices can escalate rapidly for low-mintage semiquincentennial issues, the potential for short-term gains is very real.

Here’s a summary of the applicable long-term capital gains rates for collectibles:

• 0% rate: Taxable income does not exceed $47,025 (single) or $94,050 (married filing jointly) in 2025
• 15% rate: Taxable income between $47,026–$518,900 (single) or $94,051–$583,750 (married filing jointly)
• 28% maximum rate: Taxable income exceeds $518,900 (single) or $583,750 (married filing jointly)

Key Takeaway: Even if you’re in the 15% bracket for stocks, your collectible sales could still trigger the 28% rate. Always model your numismatic sales separately from your investment portfolio when estimating tax liability.

Understanding 1099-K Rules for Coin and Medal Transactions

When the IRS Gets a Copy of Your Sale

One of the most important — and most misunderstood — aspects of selling high-value numismatic items is the 1099-K reporting regime. If you sell the BOM 5 set through an online marketplace, auction platform, or third-party payment processor, and your transactions meet certain thresholds, you will receive a 1099-K form.

For 2025 and beyond, the reporting thresholds have been adjusted. Under current IRS guidelines, platforms are required to issue a 1099-K when gross payment transactions exceed $5,000 in a calendar year, provided the seller has at least 200 transactions. However, for transactions conducted through numismatic-specific platforms and auction houses, the rules can vary.

What This Means for BOM 5 Sellers

Consider this scenario: You purchase the BOM 5 set at release for roughly $2,700. Two years later, you sell it on a major coin auction platform for $4,500. The auction house reports the gross sale proceeds to both you and the IRS on a 1099-K. Now, here’s the critical point — the 1099-K reports gross proceeds, not net profit. The IRS sees $4,500 in income, even though your actual gain might be only $1,800 after subtracting your cost basis.

In my practice, I’ve seen too many collectors panic when they see a 1099-K figure that exceeds their actual profit. The key is proper documentation of your original purchase price, which brings me to cost basis tracking.

Cost Basis Tracking: The Most Overlooked Advantage Collectors Have

What Is Cost Basis for Numismatic Items?

Your cost basis in the BOM 5 set is the total amount you paid to acquire it. This includes:

• The purchase price of the coin and medal set
• Any applicable Mint fees or shipping charges
• Grading fees if you submit the coin for third-party authentication
• Insurance costs during shipping or storage

For example, if you paid $2,750 at the Mint (including premium and shipping), your cost basis is $2,750. If you later sell the set for $4,500, your taxable gain is $1,750 — not $4,500. The 1099-K may report $4,500, but your tax liability is calculated on the $1,750 gain.

Special Considerations for Gold Content

There’s an important nuance with gold coins that I address with every client who holds numismatic gold. The IRS treats gold coins acquired after 1964 as collectibles, regardless of their gold content. However, if you hold a coin that is primarily valued for its metal content — as opposed to its rarity or historical significance — you may have the option to report the gain differently. For the BOM 5 coin, which contains exactly one troy ounce of 99.99% fine gold, the line between “collectible” and “metal” can blur.

In my experience, the safest and most favorable approach is to treat the entire sale as a collectible transaction, especially for low-mintage semiquincentennial issues where the numismatic premium often exceeds the intrinsic gold value. Keep detailed records of both the spot gold value at the time of sale and the numismatic premium, as this breakdown can be useful for tax planning.

Records You Should Maintain

1. Original purchase receipt or invoice from the United States Mint
2. Credit card or bank statements showing the transaction
3. Any correspondence with the Mint or dealer regarding authenticity
4. Third-party grading reports (if applicable)
5. Photographs of the coin and medal in their original packaging
6. Records of any repairs, conservation, or restoration work

Dealer vs. Collector Status: Why the IRS Cares About Your Intent

The Collector Classification

If you are buying the BOM 5 set because you appreciate the artistry of the 1907 Saint-Gaudens High Relief design — with its iconic Lady Liberty striding forward, torch in hand, and the Capitol building in the background — and you intend to hold it as a personal collection or long-term investment, you are a collector in the eyes of the IRS. This is the most favorable classification for tax purposes, as discussed above. As someone who has examined countless portfolios of numismatic holdings, I can tell you that the IRS generally accepts the collector classification when your buying and selling patterns reflect genuine interest in the hobby rather than commercial profit-seeking.

The Dealer Classification

If you routinely buy and sell coins for profit — maintaining inventory, operating from a business address, advertising, or making a significant portion of your income from numismatic transactions — the IRS may classify you as a dealer in collectibles. This changes your tax treatment significantly:

• Gains are reported on Schedule C (Profit or Loss from Business) rather than Schedule D (Capital Gains)
• You can deduct ordinary and necessary business expenses (rent, advertising, insurance, cost of goods sold)
• You may be subject to self-employment tax (15.3%) on net profits
• You may need to collect sales tax on transactions depending on your state
• Your ability to use capital losses to offset other income is limited

The Gray Area

Here’s where it gets tricky. Many collectors occasionally sell pieces from their collection and realize significant gains. If you sold the BOM 5 set at a substantial profit but otherwise maintain a passive collection, you’re almost certainly fine as a collector. However, if you begin selling regularly — say, selling multiple Best of the Mint releases in succession — the IRS could scrutinize your activity.

In my experience, the determining factors are frequency, intent, and scale. Selling one BOM 5 set every few years? Collector. Selling one per month at auction? You’re heading into dealer territory.

Actionable Advice: If you plan to sell multiple items from the Best of the Mint series, consult with a tax professional before your first sale to establish a defensible filing strategy. The cost of a consultation is trivial compared to an IRS audit triggered by inconsistent reporting.

Tax Planning Strategies for Selling the Best of the Mint 5 Set

1. Hold for at Least One Year

The simplest strategy: hold the BOM 5 set for more than 12 months before selling. This ensures long-term capital gains treatment, which is significantly more favorable than short-term ordinary income rates. Given the semiquincentennial nature of this release and the limited 15,000-unit mintage, the coin should appreciate over time. Patience is your best financial ally here.

2. Tax-Loss Harvesting

If you have other numismatic losses in the same tax year — perhaps from selling a modern coin that depreciated — you can offset those losses against your gains from the BOM 5 sale. Under current rules, up to $3,000 in net capital losses can offset ordinary income per year, with unlimited carryforward for excess losses.

3. Consider the Timing of Your Sale

Given that the BOM 5 release coincides with the end of the Mint’s fiscal year on September 24, 2026, secondary market pricing may be volatile in the weeks surrounding the release. I’ve observed in previous Best of the Mint releases that pricing stabilizes 60–90 days after the initial drop. Planning your sale for a period of stable pricing gives you a clearer picture of your actual gain.

4. Donate Instead of Sell

For collectors who itemize deductions, donating an appreciated collectible to a qualified charitable organization can provide a deduction equal to the fair market value at the time of donation — with no capital gains tax on the appreciation. This strategy is particularly powerful for high-value numismatic items where the fair market value significantly exceeds the original cost basis.

5. Installment Sales

If the sale price is substantial, consider structuring the transaction as an installment sale. This allows you to pay tax on the gain as you receive payments, rather than all at once. IRC Section 453 applies to collectibles, though the rules become more complex if the buyer is a dealer.

Record-Keeping and Digital Assets: New Reporting Challenges

With the increasing use of online platforms for buying and selling numismatic items, the IRS now has more visibility into collectible transactions than ever before. The BOM 5 set, being a modern issue from the United States Mint, will almost certainly be purchased through online channels. When it comes time to sell, if you use an online auction platform, marketplace, or cryptocurrency-for-coin exchange, expect to receive informational returns.

Keep in mind that if you accept cryptocurrency as payment for your sale, that transaction is also taxable. The fair market value of the cryptocurrency at the time of receipt constitutes your proceeds, and any subsequent appreciation in the cryptocurrency’s value before you convert it to dollars is an additional taxable gain.

In my practice, I recommend that all serious collectors maintain a dedicated spreadsheet or software system for tracking every numismatic purchase and sale. The internal revenue code demands substantiation, and “I think I remember what I paid” will not survive an audit.

Conclusion: The Historical and Numismatic Significance of the 1907 Saint-Gaudens High Relief

Before we close this tax guide, let’s pause to appreciate what you are actually acquiring with the Best of the Mint 5 1907 Saint-Gaudens High Relief $20 Gold Coin and Silver Medal Set. The original 1907 Saint-Gaudens Double Eagle is widely regarded as one of the most beautiful American coins ever struck. Augustus Saint-Gaudens designed it at the personal request of President Theodore Roosevelt, who was dissatisfied with the “atrocious hideousness” of the existing Liberty Head design.

The original coin was struck at a mere 34mm diameter with 33.4 grams of 90% gold content, featuring an ultra-high relief that required multiple blows to achieve. The minting process was so difficult that only a small number of pieces were produced before the design was modified for commerce. The 1907 High Relief $20 gold coin remains the holy grail of American numismatics, with original examples commanding prices well into six and even seven figures.

The BOM 5 tribute coin honors this legacy with a one-ounce 99.99% fine gold composition at 30.61mm — slightly smaller than the original but engineered to accommodate deeper relief. Its eye appeal is immediately evident, from the warm luster of the gold to the crisp strike that brings Lady Liberty to life. The rare variety of this modern issue, with its 15,000-unit mintage, gives it extraordinary collectibility among today’s collectors. And because each piece is struck to near-perfect mint condition, the potential for long-term numismatic value appreciation is significant.

Whether the coin develops a golden patina over decades of storage or stays brilliantly toned, its provenance — tracing back to its original purchase from the United States Mint — will only add to its desirability on the secondary market. This set carries both intrinsic metal value and historical resonance.

From a tax perspective, this set represents a capital asset with significant potential for appreciation. Whether you are holding it as a long-term investment, adding it to a multi-generational collection, or considering a future sale, the key to maximizing your financial outcome — and minimizing your tax burden — lies in advance planning, meticulous record-keeping, and understanding the unique tax treatment that the IRS reserves for collectibles.

As always, I encourage collectors dealing with high-value numismatic transactions to consult with a tax professional who specializes in collectibles. The rules are nuanced, the stakes are real, and a well-planned strategy can make the difference between keeping more of your profit and overpaying your tax liability. Hold onto your receipts, know your basis, and enjoy the beauty of one of America’s greatest coins.

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