HIFO (Highest In, First Out): what it means for crypto tax

HIFO sells the highest-cost lots first, which minimises the reported gain for a given disposal. It requires careful lot-level records and is only allowed in some jurisdictions.

General information, not tax advice. Crypto tax rules differ by country and change over time, verify against your country's guidance or a qualified advisor.

An example

With lots at 1,000 and 2,000, HIFO sells the 2,000 lot first, producing the smallest gain of any method on that sale.

Why it matters for your tax

HIFO can be powerful for managing a tax bill, but its record-keeping burden is high and it is not universally accepted, so it is a method to confirm before using.

CryptaTax handles this automatically across your wallets and exchanges, so the concept is applied consistently without you tracking it by hand. Try the crypto tax calculator →

Related terms

• FIFO
• LIFO
• Specific identification

See the full crypto tax glossary for every term, or the crypto tax guides for how they fit together.

HIFO (Highest In, First Out): what it means for crypto tax

Definition in context

HIFO sells the highest-cost lots first, which minimises the reported gain for a given disposal. It requires careful lot-level records and is only allowed in some jurisdictions.

Why it matters to crypto records

HIFO can reduce your taxable gain in the short term, but it may not be permitted everywhere. If you use HIFO, you must track the cost basis of each lot individually and apply the highest cost first. This can be complex but may be beneficial in a volatile market. Always check the rules in your jurisdiction before using HIFO.

Record example

You buy 1 ETH at $1,000, another at $2,000, and a third at $3,000. You sell 1 ETH for $2,500. Under HIFO, you use the $3,000 lot, resulting in a loss of $500. Under FIFO, you would use the $1,000 lot, resulting in a gain of $1,500. HIFO can turn a gain into a loss, but you must be able to identify the specific lots.

Distinctions and next steps

HIFO is similar to LIFO but uses the highest cost rather than the most recent. It is not universally accepted, so you need to confirm its legality. If you plan to use HIFO, maintain detailed records of each acquisition and disposal. Preserve the lot identifier, source statement, timestamp, quantity and value used for every selection, so a reviewer can reproduce the choice from the underlying records. Use tax software that supports HIFO and can generate the necessary reports. Consider consulting a tax advisor to ensure compliance.

A HIFO selection should be reproducible from a dated lot schedule, not reconstructed from a favourable result. Preserve the acquisition source, quantity remaining, original cost record and the rule that ranked the available lots at the time of the disposal. If an exchange export groups transactions or a wallet transfer changes the location of an asset, link those records before choosing a lot. The practical control is simple: another reviewer should be able to identify the same eligible highest-cost lot from the evidence without relying on an unexplained spreadsheet adjustment.

A careful next step

Before acting on this term, return to the original record and write down the question it raises: what changed, which source proves it, and whether another related concept describes the event more accurately. Keep that note with the export or wallet evidence. It makes a later review faster and avoids turning a short label into an unsupported conclusion about tax, accounting or reporting.