Core concepts

Historical exchange rates

Your tokens are priced in USD. Your tax office wants your currency, at the rate that applied on the day of each event — not today's.

This is the step almost nothing does automatically, and it is not optional anywhere outside the US. A gain converted at today's rate is simply the wrong number.

#What it changes

	Converted at the trade date	Converted at today's rate
January buy	Correct basis	Overstated by 18%
April swap	Correct proceeds	Understated by 13%
August sale	Correct gain	Overstated by 29%

Illustrative, on a sample wallet. The point is the size of the error, not the exact figures — currency drift is often larger than the gain you are reporting.

#Which rate is used

The event date, not the settlement date — the day the disposal or accrual happened on chain.
Your jurisdiction's published source where one exists: many tax authorities require their own central bank rate.
A single source per return. Mixing sources within one filing is how reconciliations fail.

every converted figure carries its rate

{
  "income": {
    "usd": "61.40",
    "idr": "988,724",
    "rate": "16103",
    "rateDate": "2026-08-14",
    "rateSource": "bank_indonesia_middle_rate"
  }
}

Show your work

Rate, source, and date travel with every amount, so an adviser or an auditor can retrace the arithmetic instead of trusting it.

#Weekends and holidays

Tokens trade when the FX market is shut. Where a jurisdiction specifies a fallback — the previous published rate, or the next — Accuren follows that rule and records which one it used.

settings

{
  "reportingCurrency": "IDR",
  "rateSource": "central_bank",
  "weekendRule": "previous_published"
}