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Cryptocurrency in the US: what are the tax rules and key terms you need to know?

By FastBuySale Newsroom · 5 Nov 2026 · 50m ago

Key terms: digital assets, wallets and keys

Cryptocurrency in the US comes down to one rule first: the IRS treats digital assets, including cryptocurrency and stablecoins, as property, not currency. That means selling, exchanging or spending crypto can create a taxable gain or loss, and income you receive in crypto is taxable at its fair market value.

Every taxpayer filing Form 1040 must answer a Yes or No digital asset question, even if they only held crypto. From 2025, brokers report sales on the new Form 1099-DA. On the custody side, the SEC warns that whoever controls the private key controls the asset, and a lost key usually means a permanent loss.

The IRS defines digital assets as any digital representation of value recorded on a cryptographically secured distributed ledger or similar technology. Its examples include convertible virtual currency and cryptocurrency, stablecoins and non-fungible tokens (NFTs). If a particular asset has the characteristics of a digital asset, the IRS says it will be treated as one for federal income tax purposes.

A crypto wallet does not hold coins the way a leather wallet holds cash. According to the SEC's December 2025 investor bulletin on custody, the asset lives on the blockchain, and a wallet stores the keys that control it. The public key, or address, is what you share to receive crypto. The private key is what authorises transfers, and anyone who has it can move your assets.

Wallets come in two broad types. A hot wallet is connected to the internet, which is convenient for frequent trading but more exposed to hacking. A cold wallet, such as a hardware device kept offline, is harder to attack remotely but can be lost, damaged or stolen. Many wallets give you a seed phrase, a list of words that can restore your keys; the SEC advises keeping it secret and stored safely.

Custody is the other key term. With self-custody you hold your own keys and carry the full responsibility. With third-party custody, such as a trading platform, the platform holds keys for you. The SEC notes that some custodians may rehypothecate, meaning lend out or reuse, customers' assets, and that you should read the custody agreement and check fees, including trading, transfer and account fees.

Readers evaluating Cryptocurrency in the US should separate marketing claims from the actual rule text that governs their account or product. When two summaries disagree, the governing document or statute wins. If a rule depends on your age, filing status, or income band, re-check it when any of those facts change. Life events quietly move people across thresholds they last reviewed years earlier.

Educational explainers like this one cannot replace personalized advice for complex situations such as divorce orders, inherited accounts, or cross-border tax residency. Escalate those cases to a qualified professional. When in doubt about a number that changes every year, describe your plan qualitatively first, then look up the current official figure for the tax year you care about before you act.

How the IRS taxes crypto

Because crypto is property, the general tax rules for property transactions apply. The IRS lists common taxable events: selling a digital asset for dollars, exchanging one digital asset for another, using it to pay for goods or services, and receiving it as payment for work, as a reward, or from mining or staking.

Some actions are not taxable on their own. The IRS says you can answer No to the Form 1040 question if, during the year, you only held digital assets, only bought them with real currency, or only moved them between wallets or accounts you own or control.

Your gain or loss is the difference between what you receive and your basis, usually what you paid plus fees. If you held the asset for more than one year before disposing of it, the gain is long-term; one year or less is short-term and taxed at ordinary income rates. For 2025, IRS Topic 409 sets a 0% long-term rate for taxable income up to $48,350 for single filers and $96,700 for married couples filing jointly; 15% up to $533,400 single or $600,050 joint; and 20% above those levels.

Income from crypto is valued in US dollars when you receive it. If you are paid in crypto as an employee, it is wages; as an independent contractor, it is self-employment income reported on Schedule C. Mining and staking rewards are generally reported on Schedule 1 if not part of a business.

A useful habit is to write down your goal, time horizon, and cash buffer before you change any election related to Cryptocurrency in the US. Decisions made during a stressful week are the ones people reverse later at a cost. Educational explainers like this one cannot replace personalized advice for complex situations such as divorce orders, inherited accounts, or cross-border tax residency. Escalate those cases to a qualified professional.

The forms: 1040 question, Form 8949 and Form 1099-DA

The digital asset question appears on Forms 1040, 1040-SR and 1040-NR, and on business and trust returns. The IRS says everyone filing these forms must check Yes or No, not just people who sold crypto.

If you disposed of a digital asset held as a capital asset, you report each transaction on Form 8949 and carry the totals to Schedule D. If you gave crypto as a gift above the annual exclusion, you may need to file Form 709, the gift tax return.

Reporting is getting more automatic. Under rules that follow the Infrastructure Investment and Jobs Act passed in late 2021, brokers must report gross proceeds on Form 1099-DA for digital asset sales on or after 1 January 2025, and must also report cost basis for certain assets acquired on or after 1 January 2026. You still need your own records, especially for assets bought earlier or moved from another platform.

Keep a log of every purchase, sale, swap and transfer: dates, amounts, dollar values and fees. Good records make Form 8949 far easier and help you prove basis if the IRS asks.

Keep digital and paper copies of confirmations after every change. Screenshots of election pages, email receipts, and year-end statements make tax season and job changes far less chaotic. Compare fees the same way you would compare two similar listings before you buy: look at what you pay each year, what you get, and whether a simpler option meets the same need.

Safety rules: scams and losing access

The SEC's bulletin is blunt about keys: if you lose your private key or seed phrase and have no backup, you may permanently lose access to your crypto. No bank or regulator can reset it for you.

The SEC's five practical tips include understanding how your keys are stored, considering the risks of each wallet type, knowing whether a custodian can lend out your assets, understanding all fees, and protecting your seed phrase and passwords.

Watch out for tax-themed scams too. The IRS has warned about fake letters claiming to come from a Digital Assets Compliance Portal and asking for wallet details; the IRS does not ask for your private keys or seed phrase.

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If a rule depends on your age, filing status, or income band, re-check it when any of those facts change. Life events quietly move people across thresholds they last reviewed years earlier. Automation helps. Calendar reminders for annual reviews, automatic transfers, and beneficiary checkups reduce the chance that a good plan dies from neglect.

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