Direct answer: MetaMask is a self-custody wallet. The main record problem is usually not a missing exchange-style form; it is a broken acquisition/transfer trail before assets reach the broker or tax software that reports the later disposal.
Review the trail in this order
- Download the current tax/account documents available from MetaMask.
- Export full transaction history for the tax year.
- Identify disposals that contribute to reported proceeds.
- Trace assets acquired on another platform or moved through self-custody.
- Locate the original purchase date, amount and relevant fees.
- Check tax-software imports for missing wallets, duplicates or misclassified transfers.
Do not use an artificial “risk score”
A record checker cannot validate your tax return by turning a few inputs into a percentage. The useful question is which source record is missing and what evidence can reconnect it.
Use the record checklist
Independent-source rule
Platform interfaces, forms and export labels can change. Confirm current platform instructions in the platform’s own support center. For federal Form 1099-DA context, use IRS guidance.
IRS: Understanding your Form 1099-DA. This page is independent and is not affiliated with MetaMask.