Taking Out Your Initial Investment: The "House Money" Approach

One of the most common profit-taking ideas is to “take out your initial investment.” Once a position has grown, you sell enough to get back what you originally put in. What’s left is often called “house money,” and many people keep it as a moonbag.

This guide explains how to do it, how to account for taxes and fees, and why “house money” is a helpful habit but a slightly misleading phrase. All examples are illustrative.

The basic idea

You put $1,000 into “Token A.” It rises, and your position is now worth $3,000. You sell $1,000 worth. You now have your original $1,000 back in cash, and $2,000 of Token A still invested.

The appeal is mostly psychological: even if Token A later goes to zero, you haven’t lost the money you started with.

The math: how much to sell

Simple version

Units to sell = initial investment ÷ current price.

Example. You bought 1,000 units at $1 ($1,000 total). The price is now $3.

$1,000 ÷ $3 ≈ 334 units to sell.
You keep about 666 units, worth about $2,000.

Including fees

If your platform charges a 1% fee on sales, selling $1,000 nets about $990. To net $1,000, sell roughly $1,010 worth (about 337 units at $3).

Including taxes (US, general)

Selling is generally a taxable event. When you sell 334 units at $3 that cost $1 each, your gain on that sale is about $668 (334 × $2). If that gain is taxed at, say, 22%, you might owe around $147. If you want your full $1,000 back after tax, you’d need to sell a bit more.

A rough way to estimate:

Gain fraction per unit = (price − cost per unit) ÷ price. Here, ($3 − $1) ÷ $3 ≈ 0.667.
After-tax cash per $1 sold ≈ 1 − (gain fraction × tax rate) = 1 − (0.667 × 0.22) ≈ 0.853.
Amount to sell ≈ $1,000 ÷ 0.853 ≈ $1,172, about 391 units.

The 22% rate is only a placeholder. Your actual rate depends on your income, filing status and holding period: short-term gains (held one year or less) are generally taxed as ordinary income, and long-term gains usually at lower capital gains rates. Consult a tax professional.

Step-by-step

Find your true cost. Add up what you paid, including fees. This is your cost basis. See How to Track Your Cost Basis.
Decide what “initial investment” means to you. Just the cost, or cost plus the tax on this sale?
Calculate the units to sell using the steps above.
Choose how to sell. One sale, a limit order at a target price, or a few smaller sales.
Set aside the tax. Move the estimated tax amount to a separate savings account so you aren’t surprised next spring.
Decide what to do with the rest. Hold it as a moonbag, put it on a ladder, or follow a time-based plan.
Write down the date and details.

When to trigger it

Common choices include:

At a fixed gain. For example, when the position is worth 2x or 3x your cost. At 2x, taking out your initial investment means selling half.
As the first rung of a ladder. Recover your cost first, then follow your ladder for the rest.
After a time period. For example, at the one-year mark, which may also affect your US tax rate.

Decide this before you buy. See Write Your Exit Plan Before You Buy.

The “house money” trap

Calling the remainder “house money” can make it feel like it doesn’t really count. It does. The $2,000 still in Token A is your money; you’ve just chosen to keep it invested. If you would never put $2,000 of fresh cash into Token A today, it’s worth asking whether you want $2,000 of it now.

Behavioral researchers call the tendency to take more risk with recent gains the “house money effect.” Being aware of it helps you size what’s left on purpose instead of by accident.

How this compares with other approaches

Versus a fixed-percentage moonbag: taking out your initial investment keeps a larger remainder the bigger the gain. A fixed percentage keeps the same share no matter what. See How Big Should Your Moonbag Be?.
Versus rebalancing: rebalancing focuses on portfolio share, not on your original stake. A position can be “house money” and still be far too large for your portfolio.

Common mistakes

Forgetting fees and taxes, then finding you didn’t actually get your full stake back.
Waiting for “just a bit more.” Plans to recover costs at 2x often slip to 3x, then the price falls back.
Treating the remainder as free. It can still fall to zero, and it is still your money.
Spending the tax money. Keep it separate.
Not recording which units were sold. This matters for calculating your gain. In the US, the default for many is first-in, first-out (FIFO), though specific identification may be allowed with proper records. Ask a tax professional.

Key takeaways

Selling your initial investment locks in your starting money and leaves the rest as optional upside.
Include fees and estimated taxes in the math.
Decide the trigger in advance.
The remainder is still real money; size it deliberately.