What is HIFO in crypto? Reducing taxes with highest in, first out

What Is HIFO in crypto?

HIFO, or Highest In, First Out, is a crypto accounting method that assumes you sell your most expensive crypto assets first when calculating gains or losses. This method is often used to minimize taxable capital gains, especially in markets with high price volatility.

By applying HIFO, investors prioritize selling the coins or tokens that had the highest purchase price, reducing the difference between cost and sale price — and, in turn, lowering taxes.

How HIFO works in crypto

When you make multiple crypto purchases at different prices, HIFO selects the asset with the highest cost basis when you sell.

Example:
You buy:

• 1 BTC at $30,000
• 1 BTC at $45,000
• 1 BTC at $35,000

Later, you sell 1 BTC at $50,000.

• HIFO uses the $45,000 purchase → Taxable gain = $5,000
• FIFO would use the $30,000 BTC → Gain = $20,000

So, HIFO can result in significantly lower tax liability.

When is HIFO used in crypto?

HIFO is most useful when:

• You want to reduce short-term capital gains
• You've purchased the same asset at multiple price points
• Your local tax authority allows specific identification of lots (as in the U.S.)

To apply HIFO legally, you must have detailed records of every trade, including purchase date, amount, and cost.

HIFO vs. FIFO vs. LIFO

HIFO is considered the most tax-efficient, though it's also the most data-intensive to manage.

FAQs

Is HIFO allowed for crypto taxes?

Yes, in jurisdictions like the United States, HIFO is allowed if you're using specific identification accounting and can document each asset's cost basis accurately.

Does HIFO always reduce taxes?

Not always, but in a rising market, HIFO typically results in lower capital gains than FIFO or LIFO.

Can I use HIFO and switch to FIFO later?

You can change accounting methods between tax years if allowed in your jurisdiction, but you must be consistent within a single tax year.