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Bitcoin buying costs can include a provider’s trading charge, the price spread, account-funding or withdrawal costs, and—when you move Bitcoin on-chain—a separate network fee. In the U.S., selling Bitcoin for dollars generally creates a reportable capital gain or loss. Bitcoin’s price can move sharply, and your custody choice determines who is responsible for protecting access to the coins.
What fees should you check before buying or selling Bitcoin?
Compare the total cost of a transaction, not just the trading fee shown prominently on a service’s screen. Provider pricing varies and can change; no current rate is established here for any particular exchange or broker.
- Execution price or spread: Compare the price at which the service will actually buy or sell Bitcoin with a reference market price. A displayed trading charge does not show the whole cost.
- Trading charge: Check for a separate commission or transaction fee.
- Funding and withdrawal costs: Look for charges to add money, withdraw dollars, or withdraw Bitcoin, and confirm whether Bitcoin withdrawals are available.
- Custody and recovery: Understand whether the service holds the Bitcoin for you or whether you control the wallet keys, and what happens if you lose access.
A Bitcoin network fee is different from a provider’s purchase or sale charge. It applies when an on-chain transaction is made, such as sending Bitcoin from one address to another. Bitcoin.org explains that network fees depend on demand for blockchain space and transaction size; the amount sent is not the only factor. Wallets may estimate or let you adjust the fee. A lower fee may mean waiting longer for confirmation when the network is prioritizing transactions with higher fees. It is not a universal fixed fee charged on every purchase.
For U.S. tax purposes, the IRS defines digital-asset transaction costs as costs paid for services to effect a purchase, sale, or disposition, with examples including transaction fees, commissions, gas fees, and transfer taxes. It distinguishes these from costs paid merely to move assets between your own wallets or accounts. How a cost is treated depends on the transaction and applicable IRS rules. See the IRS digital asset FAQs.
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What happens when you sell Bitcoin in the U.S.?
For U.S. federal income tax purposes, the IRS treats digital assets as property. Selling Bitcoin for U.S. dollars generally means recognizing a capital gain or loss, subject to applicable rules and limitations. The IRS describes the calculation as the difference between your adjusted basis and amount realized. Amount realized includes cash and the fair market value of anything else received, reduced by qualifying transaction costs allocable to the sale.
In simplified terms, basis generally tracks what you paid for the Bitcoin, adjusted as required by tax rules. The calculation is not simply the amount of cash you receive: you need the relevant basis, sale proceeds, and qualifying costs. A sale at a loss may still be a reportable disposition; rules limit the deductibility of capital losses.
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Short-term versus long-term
For a capital asset, the IRS generally classifies a gain or loss as short-term if you held the Bitcoin for one year or less, and long-term if you held it for more than one year. The holding period starts the day after acquisition and ends on the sale or exchange date. These are tax classifications, not forecasts of performance. See the IRS digital asset FAQs.
Does buying Bitcoin alone trigger the digital-asset tax question?
The IRS questionnaire distinguishes buying or holding digital assets from receiving, selling, exchanging, or otherwise disposing of them. A purchase alone is not the same as a sale or disposition for that questionnaire. Answer using the current return instructions for the tax year and your complete circumstances; do not assume that this distinction resolves every tax issue.
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Records to keep
Keep records for purchases, receipts, sales, exchanges, and other dispositions. The IRS identifies the transaction date and time, number of units, fair market value in U.S. dollars, and basis as information used to calculate gain or loss. Keep relevant costs and supporting transaction records as well. The IRS digital-assets page explains reporting and recordkeeping. IRS Tax Tip 2026-07, dated January 28, 2026, says brokers may provide Form 1099-DA for 2025 transactions and that most such forms will not include basis, so taxpayers may need to calculate it themselves; receiving a form does not replace the taxpayer’s reporting obligation. See the IRS Tax Tip.
This is general U.S. federal information, not an individual tax calculation. State, local, foreign, business, and unusual-transaction rules are not covered here. Readers outside the United States need to check the rules that apply in their jurisdiction.
How volatile is Bitcoin, and what risks matter?
Bitcoin’s price can rise or fall sharply over short periods, and its direction cannot be reliably inferred from past movements. Bitcoin.org’s risk overview warns about price fluctuations. The SEC’s Investor Alert on Bitcoin and other virtual currency-related investments, dated 2014, also warns of volatility, security, regulatory, and custody risks. Its historical warning is not a current market statistic or a description of every legal protection today.
The SEC alert says Bitcoin held in a wallet or exchange does not have the same protections as the securities accounts or bank accounts discussed in that alert. Consider the possibility of price loss alongside the risks of provider failure, theft, or losing access to a wallet; no general statement makes Bitcoin safe or suitable for a particular person.
Should you keep Bitcoin with a service or use your own wallet?
You can leave Bitcoin with a service provider or use a wallet under your control. These approaches shift convenience, control, and recovery responsibilities in different ways. Before choosing, find out who controls the keys, what recovery help is available, and what backups you must maintain.
- Provider custody: A service holds the Bitcoin on your behalf. This can avoid managing wallet keys yourself, but it makes access dependent on the provider and its security and recovery processes.
- Self-custody: You control the keys and take responsibility for securing them and maintaining backups. Losing access without a proper backup can make funds unrecoverable.
- Hardware wallet: An optional type of self-custody wallet that stores keys on an offline device. Bitcoin.org describes hardware wallets as a high-security option, but losing the device without a proper backup can make the funds unrecoverable. Buying Bitcoin does not require owning one.
Choose based on the responsibilities you can manage, not on the assumption that any one custody method removes risk.
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