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1Fix the driver behind crashes, sound loss and screen glitches2Clear out junk files and repair common Windows errors3Scan for outdated or missing drivers - takes under a minuteTo calculate a cash break-even sale price, divide your total purchase outlay—including qualifying purchase costs—by the amount of bitcoin you will sell after accounting for the sale fee. For U.S. federal tax purposes, separately compare adjusted basis with the sale’s amount realized: a genuine sale at adjusted-basis break-even does not create a positive gain just because tax rates exist.
Calculate the sale price that recovers your purchase outlay
Use this formula when you buy and later sell the same amount of BTC, and the sale fee is a percentage deducted from proceeds:
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Break-even sale quote = (q × A + B) ÷ (q × (1 − f))
- q is the BTC quantity bought and later sold.
- A is the purchase quote per BTC.
- B is qualifying purchase costs in dollars.
- f is the sale-fee rate as a decimal. For example, 0.5% is 0.005.
If the sale also has a fixed charge S, use (q × A + B + S) ÷ (q × (1 − f)).
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Example with a percentage sale fee
Suppose you buy 1 BTC at $50,000 and pay $100 in qualifying purchase costs. If a 0.5% sale fee is deducted from proceeds, the break-even quote is $50,100 ÷ 0.995, or about $50,351.76 per BTC. This is hypothetical arithmetic, not a market quote; it assumes the stated fee applies to the sale and excludes other costs.
Check how your platform charges
The formula assumes the fee is charged against sale proceeds. A quoted spread, a fee paid in BTC, or other cash flows can change the calculation. Check how the venue presents the execution price and fees rather than inserting a universal percentage: fee schedules and fee treatment vary, and no current rate for a named exchange is established here.
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When comparing venues, consider the effective execution price and spread, explicit purchase and sale charges, whether charges are paid in cash or BTC, and withdrawal or transfer charges separately. A transfer between your own wallets is not automatically a purchase or sale cost for tax purposes.
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Separate cash break-even from taxable gain
Cash break-even asks whether sale proceeds after sale costs recover your outlay. U.S. federal taxable gain or loss is a related but distinct calculation. The IRS treats digital assets as property for federal income tax purposes, so general property transaction principles apply. The IRS describes gain or loss on a sale for U.S. dollars as the difference between adjusted basis and amount realized.
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Adjusted basis and amount realized
For a cash purchase, basis generally includes the cash paid and qualifying transaction costs to acquire the asset. Amount realized generally includes cash and the fair market value of services received, reduced by digital-asset transaction costs allocable to the disposition. The IRS lists transaction fees, gas fees, transfer taxes, and commissions as examples of transaction costs. The exact treatment depends on what the charge relates to.
As a result, a real disposition at adjusted-basis break-even does not produce a positive gain merely because tax rates exist. A target for a particular after-tax profit is a different calculation and depends on the taxpayer’s circumstances; do not apply a generic tax rate to the cash break-even formula.
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Fees paid in BTC need extra care
If a fee is withheld or paid in BTC, that BTC may itself be treated as disposed of in exchange for a service, creating a separate gain or loss to consider. Do not assume every fee is a simple cash deduction: identify how it was paid and what transaction it relates to.
Keep records and report U.S. federal dispositions appropriately
Keep records that support your basis and amount-realized calculations, including transaction date and time, quantity, U.S. dollar fair market value, and basis. Retain records for purchases, receipts, sales, exchanges, and other dispositions. A broker statement may not include all the basis information you need.
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The IRS lists Form 8949 for applicable sales or other dispositions of digital assets held as capital assets, with gains and deductible losses summarized on Schedule D. For covered transactions, brokers must report gross proceeds beginning January 1, 2025, and basis information for certain transactions beginning January 1, 2026. In a January 28, 2026 tax tip, the IRS warned that most 2025 statements may not include basis.
For capital assets, the IRS classifies a holding period of one year or less as short-term and more than one year as long-term. The applicable tax result depends on your full circumstances. This article covers U.S. federal treatment, not state, local, or non-U.S. tax rules, and is not individualized tax advice.
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