Cryptocurrency and trading with LLC: tax guide for traders

Crypto and trading need asset separation, custody, brokers, Modelo 721 and tax reporting before using an LLC as an operating structure.

Crypto capital gains in Spain are taxed on a 19% to 30% scale, and Modelo 721 forces you to declare balances on foreign exchanges from 50,000 euros upward.

Cryptocurrency trading through a US LLC is one of the more complex areas of LLC taxation. Here's a clear guide for crypto traders and investors.

Does a US LLC make sense for crypto trading?

It can, depending on your situation. The potential benefits:

Operational advantages:

• Access to US-based crypto exchanges and platforms with full features
• Kraken offers corporate accounts with access to 200+ cryptocurrencies, institutional-grade staking, and OTC trading desk
• Interactive Brokers provides access to crypto alongside 150+ traditional markets (stocks, bonds, futures, forex), all from one LLC account
• Tradovate for futures trading on CME, CBOT, NYMEX. accessible through your LLC
• Professional invoicing for crypto-related businesses (advisory, development, advisory)
• Asset protection from LLC structure — your personal assets are separated from trading risk

Tax considerations:

• The LLC itself pays no US federal tax (pass-through)
• Crypto gains are reportable in your country of residence
• The LLC structure provides clear separation of trading activity from personal assets
• Business expenses related to trading (software, data feeds, tools) are deductible

Important: The LLC doesn't eliminate or defer crypto taxes in your country of residence. All gains must be declared.

How the <a href="https://www.irs.gov" target="_blank" rel="noopener">IRS</a> views cryptocurrency

The IRS treats cryptocurrency as property, not currency. This means:

• Every crypto-to-crypto trade is a taxable event (in the US, for US taxpayers)
• For non-residents with a US LLC: the gains flow through to you and are taxable in your country of residence
• The IRS requires disclosure of virtual currency activity on Form 1120

Your LLC must track:

• Date of each transaction
• Amount received or paid
• Fair market value at time of transaction
• Gain or loss on each transaction
• Wallet addresses used

Kraken (Recommended for crypto-focused LLC)

• Corporate account available for US LLC
• 200+ cryptocurrencies available
• Institutional staking with competitive yields
• OTC desk for large trades ($100K+ per transaction)
• Regulated in the US, compliant with <a href="https://www.fincen.gov" target="_blank" rel="noopener">FinCEN</a>
• Proof of reserves (transparent and audited) Exentax closes the gap with a reviewed record and a clean execution path.

Interactive Brokers (For diversified portfolios)

• Access to crypto AND traditional markets (stocks, options, futures, forex)
• 150+ global markets from one account
• Tradovate integration for futures trading (CME, CBOT, NYMEX)
• Low commissions, professional-grade tools
• SIPC protection for securities (crypto held separately)

Coinbase Prime (For institutional-grade custody)

• Institutional custody solutions
• Advanced trading features
• Insurance on custodied assets

Crypto gains in your country of residence

Spain: Crypto gains are taxed as savings income (rendimientos de capital mobiliario/ganancias patrimoniales) at rates from 19% to 28%. All transactions must be reported. Modelo 720 applies if foreign crypto holdings exceed €50,000.

Mexico: Crypto gains may be subject to ISR (Income Tax) at rates from 1.92% to 35%. The SAT has been increasing its focus on crypto reporting. Regulations are still evolving.

Colombia: Crypto assets are treated as financial assets. Gains are subject to income tax at rates from 0% to 39%. The DIAN requires declaration of foreign crypto holdings.

Argentina: Crypto gains may be subject to Impuesto a las Ganancias at rates from 5% to 35%. BCRA currency controls make the LLC structure particularly attractive for Argentine crypto traders.

Reporting requirements with a US LLC

If your LLC holds crypto or conducts crypto trading:

Form 5472: All transactions between you and the LLC must be reported, including crypto transfers. Capital contributions in crypto, distributions in crypto, all documented.

FBAR: If your combined foreign financial accounts (including some crypto exchanges) exceed $10,000, be aware of potential reporting obligations.

Virtual Currency Question on Form 1120: The IRS now requires disclosure of virtual currency activity.

Treasury management for crypto LLC

For crypto-focused businesses, the financial stack includes additional tools:

What we don't do

We specialize in LLC formation and US compliance for business owners. Crypto-specific tax advice for your country of residence (whether gains are capital gains, ordinary income, etc.) requires a specialist in your country. We coordinate with local advisors for these questions.

The bottom line

A US LLC for crypto activity makes sense if you have a crypto-related business (trading advisory, crypto payment acceptance, blockchain development) or if you trade at significant volume. For pure personal crypto investing at small scale, the benefits are less clear-cut.

Crypto-specific compliance considerations

IRS virtual currency question

Since 2019, the IRS asks about virtual currency activity on tax forms. For your LLC's Form 1120, this question must be answered truthfully. If your LLC held, received, traded, or disposed of any digital assets during the year, the answer is "Yes."

Record-keeping for crypto

Crypto transactions generate significant documentation requirements:

• Date and time of each transaction
• Amount of cryptocurrency involved
• Fair market value in USD at time of transaction
• Wallet addresses (sending and receiving)
• Exchange used
• Purpose of transaction (trade, payment, transfer)

Tools like CoinTracker, Koinly, or specialized crypto tax tooling can help automate this record-keeping.

Staking and DeFi through your LLC

If your LLC earns staking rewards (through Kraken's institutional staking or DeFi protocols), these may be treated as income. The tax treatment varies by country:

• Spain: Staking rewards may be treated as savings income (19-28%)
• Mexico: Tax treatment still evolving, generally treated as income
• Colombia: Treated as financial income

Security best practices for crypto LLC

• Use hardware wallets for long-term storage (Ledger, Trezor)
• Enable all security features on exchange accounts (2FA, whitelisting)
• Document custody arrangements in your Operating Agreement
• Consider crypto insurance for larger holdings
• Never store all assets on a single exchange

Crypto activity through an LLC needs more than a wallet and an exchange account. Before moving funds, the file should clarify custody, trading activity, accounting records, tax residence, source of funds and how each platform will understand the business.

> <a href="/en/book">Review my structure</a>

• Crypto needs a cleaner banking file than a normal consultancy. Exchanges, stablecoin ramps, brokers and wallets should connect to the LLC with invoices, treasury notes, source-of-funds evidence and a written policy for moving value back to fiat.
• Avoid personal exchange accounts for company flow. If trading or crypto payments belong to the LLC, the account owner, blockchain records, bank deposits and bookkeeping should tell the same story. Personal wallets used as shortcuts create avoidable tax and compliance noise.
• Stablecoins do not remove reporting. A US banking layer can coexist with crypto rails, but every conversion, withdrawal and business purpose must remain traceable. The advantage is operational flexibility, not invisibility.
• Exentax checks the full chain. Bank, exchange, wallet, broker, customer payments and distributions are reviewed together so the structure can survive both provider compliance and residence-country tax questions.

When crypto activity needs a structure review

Crypto trading through an LLC only works with traceability: exchange holder, wallet custody, acquisition basis, transfers, realised gains and banking route. Exentax reviews that file before the structure becomes difficult to explain.

Why crypto taxation is rarely just about crypto

The tax treatment of cryptocurrency activity inside an LLC is rarely a clean, isolated topic. It usually depends on three other things at the same time: how the broker or exchange reports the activity, when fiat conversions happen relative to the trades themselves, and how the holding period is documented. Each of these influences which figure ultimately reaches the personal return of the member, and overlooking any of them tends to cause the kind of late discrepancy that is then expensive to reconcile. The simplest hygiene is to keep, for each calendar year, a single working file that reconciles the LLC's accounting record with the broker statements and with the on-chain history.