For Bay Area investors holding both equity and digital assets, the rules are easy to get wrong and expensive to ignore. Here is how crypto is actually taxed and where people slip up.
How are crypto taxes in California calculated?
Your gain is the difference between what you received and your cost basis, and it is taxed federally as a capital gain plus by California as ordinary income. The IRS has treated virtual currency as property since 2014, which means the same rules that apply to selling stock apply to selling Bitcoin [Source: IRS Notice 2014-21].
Two federal rates apply based on how long you held the asset. Assets held one year or less are short-term and taxed at ordinary rates; assets held longer than a year get lower long-term capital gains rates. California, however, does not distinguish: it taxes all capital gains as ordinary income, topping out at 13.3% [Source: California FTB 2025]. That state layer is why a profitable crypto year hits California residents harder than residents of no-tax states.
The holding-period distinction can meaningfully change your federal bill. Selling a coin you held for eleven months locks in short-term treatment at your full ordinary rate, while waiting past the one-year mark can drop the federal rate substantially on the same gain. California taxes both the same way, so the only lever on your state bill is the size of the gain, not how long you held. For active traders, this means timing and lot selection matter, and sloppy records can cost real money because you cannot prove which lots you sold. Coordinating those decisions with the rest of your return is part of sound tax planning rather than tax preparation.
Which crypto transactions are taxable?
A taxable event happens any time you dispose of crypto, not just when you cash out to dollars. Many investors are surprised that trading one coin for another is fully taxable.
Here is how common actions are treated:
| Action | Taxable? |
|---|---|
| Selling crypto for dollars | Yes, capital gain or loss |
| Trading one crypto for another | Yes, capital gain or loss |
| Spending crypto on goods or services | Yes, capital gain or loss |
| Earning crypto (staking, mining, wages) | Yes, ordinary income |
| Buying and holding crypto | No |
| Transferring between your own wallets | No |
Because so many events are taxable, recordkeeping is the whole game. The IRS expects you to track basis and holding period for every lot, and gains ultimately land on Form 8949 and Schedule D [Source: IRS 2025]. Investors who also hold equity compensation should coordinate the two, a theme we cover for Silicon Valley tech workers and in our tax preparation and planning practice.
What is Form 1099-DA and how does it change crypto reporting?
Form 1099-DA is a new information return that crypto brokers must issue starting with the 2025 tax year, reporting your digital asset sales directly to the IRS. It is the first standardized crypto tax form, and it changes the compliance landscape permanently.
For 2025 transactions, brokers report gross proceeds; full cost basis reporting phases in beginning with 2026 [Source: TaxAct 2025]. The practical effect is that the IRS will now receive third-party data on your crypto sales, just as it already does for stock. That makes unreported crypto far easier to detect and matching notices far more likely. If your reported gains do not line up with the 1099-DA, expect the automated systems to flag it, much like the mismatches that drive an IRS notice.
What happens if you did not report crypto gains?
Unreported crypto is treated like any other unreported income, and the penalties escalate the longer it goes uncorrected. With brokers now filing Form 1099-DA, the days of assuming crypto is invisible are over.
The exposure is real. A failure-to-file penalty reaches 25% of unpaid tax, and accuracy-related penalties can stack on top when income is omitted [Source: IRS 2025]. Interest accrues throughout. The good news is that correcting the record is almost always better than waiting to be caught. Depending on your situation, that can mean amending prior returns, as explained in our guide to correcting tax filing errors, or addressing a balance through tax resolution. If penalties have already been assessed, you may qualify for relief covered in our penalty abatement guide.
How Kim & Rosado helps California crypto investors
Kim & Rosado LLP helps Bay Area investors report digital assets correctly and resolve prior-year gaps before they become disputes. Because our attorneys are former IRS counsel, they understand how the agency matches third-party data and where crypto reporting draws scrutiny.
The firm handles both the planning side and the defense side, from clean reporting to audit and litigation representation if a return is questioned. Investors across the Bay Area work with attorneys such as Nicholas Rosado and Peter Chang, whose backgrounds appear on the firm’s about page.
Frequently asked questions
Do I owe California tax on crypto if I only traded, never cashed out?
Yes. Trading one cryptocurrency for another is a taxable disposal, even if no dollars touched your bank account. You calculate gain or loss on the coin you gave up, measured against its cost basis. Many investors accumulate significant gains across trades without realizing each swap is a separate taxable event that both the IRS and California expect to see reported.
Is transferring crypto between my own wallets taxable?
No. Moving crypto between wallets you control is not a disposal and creates no gain or loss. It is treated like moving cash between your own bank accounts. Keep records of the transfers, though, because exchanges may still issue forms that make transfers look like sales, and you will want documentation to reconcile your basis if the IRS asks.
What if I lost money on crypto?
Crypto losses are deductible capital losses that offset capital gains and up to $3,000 of ordinary income per year, with the excess carried forward. Reporting losses correctly can meaningfully lower your bill in a down year. You still must report each disposal, because the loss is only recognized when you sell, trade, or otherwise dispose of the asset, not while you simply hold it.
Does California have its own crypto tax rules?
California follows the federal treatment of crypto as property but taxes all resulting gains as ordinary income, with no preferential long-term capital gains rate. That means a long-held asset gets a federal rate break but no state break. For high earners, the combined burden can be substantial, which is why coordinating crypto sales with the rest of your tax picture matters.
The bottom line
Crypto taxes in California come down to a simple frame: dispositions are taxable, gains are ordinary income to the state, and Form 1099-DA now puts your transactions in front of the IRS. Track your basis, report every disposal, and fix prior-year gaps before the matching notices arrive. With brokers now filing Form 1099-DA, accurate reporting is no longer optional for anyone active in digital assets. A tax attorney can help you do all three cleanly and defend the return if the IRS ever raises questions about your digital assets.
This article is educational and not legal or tax advice. A tax attorney can review your specific crypto situation.
Last updated: August 2026.
Holding digital assets with unreported gains? Schedule a consultation with Kim & Rosado LLP or contact our office.
