Self-employed Bitcoin investors can contribute up to $70,000 per year to a solo 401(k) — far beyond the standard IRA limit. This guide compares solo 401(k), SEP IRA, and SDIRA for Bitcoin retirement accounts.
Bitcoin IRAs let you hold BTC inside a tax-advantaged retirement account. The problem: fees vary wildly between custodians, and a seemingly small annual fee compounds into a massive drag over 20 years.
A 2% annual fee on a $100,000 Bitcoin IRA costs you more than $100,000 in lost growth over 20 years at 15% annual returns. Picking the right custodian is not a minor detail.
How Bitcoin IRA Fees Work
Unlike a stock brokerage IRA, Bitcoin IRAs involve multiple fee layers:
Setup fees — one-time cost to open the account (ranges from $0 to $1,000+)
Annual account fees — flat fee to maintain the account
Asset-under-management (AUM) fees — percentage of your balance charged annually
Transaction fees — percentage charged on every buy or sell
Storage fees — cost to custody the actual Bitcoin
Understanding which fee model applies to you depends on your account size and trading frequency.
Bitcoin IRA Fee Comparison Table
| Custodian | Setup Fee | Annual Fee | AUM Fee | Transaction Fee |
|---|---|---|---|---|
| iTrustCapital | $0 | $0 | 0% | 1% per trade |
| Bitcoin IRA | $0 | $195+ | 0.08%/mo | 2% per trade |
| Alto IRA | $0 | $10/mo | 0% | 1.5% crypto trades |
| Broad Financial | $1,295 | $300/yr | 0% | varies by asset |
| Equity Trust | $50 | $225/yr | 0% | varies |
| Kingdom Trust | $0 | $225/yr | 0% | varies |
Fees as of early 2026. Always verify current pricing on each provider's website.
iTrustCapital: Best for Active Traders
iTrustCapital charges 1% per transaction with no setup fee and no annual fee. For someone who buys Bitcoin monthly through DCA, this model is predictable and transparent.
On a $50,000 position with $500/month in purchases, you'd pay about $6 per month in transaction fees — no surprise bills.
Best for: Monthly DCA buyers, accounts under $200,000, people who want simplicity.
Watch out for: If you make large infrequent trades, 1% per transaction gets expensive fast. A $50,000 single purchase costs $500.
Bitcoin IRA: Best for Large Balances
Bitcoin IRA has higher transaction fees (2%) but lower ongoing costs than some competitors at scale. Their monthly AUM fee of 0.08% (roughly 0.96% annually) hits harder on large balances.
On a $500,000 account: 0.96% AUM = $4,800/year just in holding fees, before any trades.
Best for: Accounts over $100,000 that buy-and-hold without frequent trading.
Watch out for: The 2% transaction fee is steep. A $100,000 purchase costs $2,000.
Alto IRA: Best All-Around Value
Alto IRA charges $10/month ($120/year) with 1.5% crypto transaction fees. No AUM fee. For most investors, this is the best balance of low ongoing costs and reasonable transaction fees.
On a $100,000 account: $120/year flat + 1.5% on trades. Compare to Bitcoin IRA's $960/year AUM fee on the same balance.
Best for: Most investors. Clean fee structure, FDIC-insured cash, broad crypto selection.
Watch out for: 1.5% transaction fee is higher than iTrustCapital's 1%.
Broad Financial: Best for Self-Directed Control
Broad Financial uses a checkbook IRA LLC structure. You control a Wyoming LLC that owns the Bitcoin directly, meaning you can use any exchange or custody provider you want — including hardware wallets.
The tradeoff: $1,295 setup fee and $300/year annual fee, plus complexity. You'll need to understand IRS rules on self-directed IRAs.
Best for: Large accounts ($250,000+) where the fee savings from using a low-cost exchange justify the setup complexity.
Watch out for: Prohibited transaction rules are strict. If you accidentally violate them, you lose the IRA's tax status.
The Real Cost of AUM Fees Over Time
AUM fees compound against you. Here's the math on a $100,000 Bitcoin IRA earning 15% annual returns:
| Fee Model | After 10 Years | After 20 Years | Lost to Fees |
|---|---|---|---|
| 0% annual | $404,556 | $1,636,654 | $0 |
| 0.5% annual | $380,129 | $1,447,199 | $189,455 |
| 1% annual | $356,500 | $1,278,822 | $357,832 |
| 2% annual | $313,843 | $985,165 | $651,489 |
The difference between a 1% AUM fee and a 0% AUM fee is over $357,000 on a $100,000 starting balance over 20 years. This is not rounding error.
Roth IRA vs Traditional IRA for Bitcoin
Roth IRA: Pay taxes now on contributions, all growth is tax-free. If you believe Bitcoin will increase significantly in value, Roth is mathematically superior — you pay taxes on today's contribution, not tomorrow's gains.
Traditional IRA: Deduct contributions now, pay taxes on withdrawal. Better if you're in a high tax bracket now and expect lower income in retirement.
Contribution limits 2026: $7,000/year ($8,000 if age 50+). To get meaningful Bitcoin exposure, you'll be adding to the account for many years.
IRA vs 401(k) for Bitcoin
Most employer 401(k) plans don't offer Bitcoin. However:
- Solo 401(k): Self-employed people can contribute up to $70,000/year (2026 limits) and can include Bitcoin through providers like Equity Trust
- IRA rollover: Rolling over a 401(k) from a previous employer into a Bitcoin IRA is straightforward and tax-free if done correctly
The Solo 401(k) contribution limits are dramatically higher than IRA limits, making it the better vehicle if you're self-employed.
Prohibited Transactions to Avoid
Bitcoin IRAs are self-directed, which means you can accidentally violate IRS rules. Common mistakes:
Personally using IRA assets — You cannot store IRA Bitcoin on your personal hardware wallet. It must be held by the custodian or a separate IRA LLC.
Transacting with disqualified persons — You cannot buy Bitcoin from yourself, your spouse, or certain family members through the IRA.
Earning services income through the IRA — The IRA cannot pay you for managing its own investments.
Violations result in the account being distributed in full, triggering immediate taxes plus a 10% penalty if under 59½.
Frequently Asked Questions
Can I hold Bitcoin in a regular Roth IRA? Only if your custodian supports crypto. Fidelity and Schwab offer limited crypto exposure through ETFs. For direct Bitcoin custody, you need a specialized Bitcoin IRA provider.
Are Bitcoin IRA gains taxable? Not until withdrawal (Traditional IRA) or never (Roth IRA, if held until 59½). This is the primary advantage of the IRA structure.
What happens to my Bitcoin IRA if the custodian fails? Your Bitcoin should be held in segregated custody, not on the custodian's balance sheet. Verify this before opening an account. Look for custodians using qualified custodians like BitGo or Coinbase Custody.
Can I take in-kind distributions of actual Bitcoin? Some custodians allow this. Alto IRA and Broad Financial do. Bitcoin IRA transfers to a Bitcoin address. Verify with your specific provider.
What's the minimum to open a Bitcoin IRA? iTrustCapital: $1,000. Bitcoin IRA: $3,000. Alto IRA: $10 to open, $10 minimum trade. Broad Financial: $10,000+ recommended given setup costs.
Bottom Line
For most people, Alto IRA offers the best combination of low fees, flexibility, and simplicity. iTrustCapital wins if you DCA monthly and want the lowest transaction fees. Broad Financial wins only for large accounts where you want maximum control and can justify the complexity.
Avoid custodians with both high AUM fees and high transaction fees — you'll pay twice to hold your own retirement savings.
Start with Alto IRA or iTrustCapital, max your annual contribution, and let the tax-free compounding do the work.