Cashing Out Crypto for a House Deposit: What You Actually Keep

Selling crypto to fund a house deposit feels like a clean trade: sell the coins, take the profit, hand the money to your solicitor. In practice, the number on your exchange screen is rarely the number that lands in your deposit account. Tax, trading fees, and even a few days of price movement can quietly take thousands off the top.

That gap matters more here than in any other sale: a house deposit is a fixed target with a hard deadline. This guide shows how to calculate what you actually keep, so you can plan around the real figure instead of the headline profit.

Start With the Profit, Not the Sale Price

Your sale price is not your profit. Your profit is what is left after you subtract what you originally paid. If you bought 0.5 BTC for $20,000 and later sold it for $41,363, your gross profit is $21,363 — not $41,363. That distinction is the starting point for every other calculation.

Keep a clear record for each purchase: date, amount, price per coin, total cost, and any fee charged. If you bought the same coin several times, your cost basis is the weighted average of those purchases, unless local tax rules require a specific method.

Key takeaway: Your deposit comes from your net cash after fees and tax, not from your gross sale price — always work backwards from the sale proceeds.

Worked Example: 0.5 BTC Sold for a $35,000 Deposit

Suppose you bought 0.5 BTC at $40,000 per coin and later sold it at $82,726 per coin, aiming for a $35,000 house deposit. The table below uses a 0.5% exchange fee on the sale and an estimated 20% tax rate on the gain. Your own tax rate will depend on your country, your income, and how long you held the asset — treat 20% here as an illustration, not a rule.

On paper, this seller clears the target with $1,925 to spare. That surplus is smaller than it looks: a 5% price fall before selling would cut the sale proceeds by about $2,068 and wipe it out entirely. That is why timing matters as much as the tax math.

Tax Is Usually the Biggest Deduction

For most sellers, tax takes a bigger slice than fees. In the example above, tax ($4,231) is roughly twenty times the exchange fee ($207). The exact rate depends on where you live: some countries apply lower capital-gains rates to long-term holdings, others tax gains as income. Do not assume a rate you read about online applies to you.

Two details catch people out. First, swapping one crypto for another can itself be taxable in many jurisdictions, even if no cash touches your bank account. Second, tax is usually due in the year of the sale, so set the money aside at once. For how specific transaction types change the math, see our guide on how to calculate crypto profit on donations and tax deduction math.

Fees, Spreads, and the Price Move Before Closing

Beyond the headline trading fee, check the spread — the gap between the buy and sell price your platform quotes. On less liquid coins, the spread can cost more than the stated fee, and bank withdrawal charges add a little more.

Protect the closing date

The bigger risk is the gap between sale and closing. If you wait and the market drops 10% before you sell, a $41,363 sale becomes about $37,227 — and after the same fee and tax, your net cash falls to roughly $33,600, below the $35,000 target. Selling in tranches smooths this risk: lock in part of the deposit early and leave the rest exposed for a shorter period. Order type matters too, as explained in our guide on limit orders versus market orders and slippage math.

Key takeaway: Sell early enough to protect the deposit, keep a buffer above your target, and never let the final tranche depend on a price that has to hold until closing day.

Conclusion

Cashing out crypto for a house deposit is a simple idea with a fiddly calculation. Work from your true cost basis, subtract fees before estimating tax, set the tax money aside at once, and build in a buffer for price moves between sale and closing. Do that, and the number you plan around will be the number that actually reaches your deposit account.

Run your own figures before you sell in the free calculator on the Crypto Profit Calculator homepage, then adjust the sale price to test what happens if the market moves before closing. Check live prices on CoinGecko before deciding when to sell.

Disclaimer: This article is for educational purposes only and is not financial advice. Crypto tax rules vary by country and personal circumstances, and prices can move sharply. Always do your own research (DYOR) and speak to a qualified tax professional before making a sale linked to a property purchase.