Here is an FAQ about handling identity verification requests from the IRS.
It might be easiest to set up an account with them.
IRS Individual Online Account
- Taxpayers with a Social Security number or an Individual Taxpayer Identification Number can create or access their IRS Individual Online Account to get information they need to file their return.
- With an IRS Individual Online Account, people can:
- View balance owed, payment history and schedule payments.
- Cancel scheduled payments.
- Get transcripts.
- View or create payment plans.
- See digital copies of some IRS notices.
- View key data from their most recently filed tax return, including adjusted gross income.
- Validate bank accounts and save multiple accounts, eliminating the need to re-enter bank account information every time they make a payment.
- View, approve and electronically sign power of attorney and tax information authorizations from their tax professional.