The most common Internal Revenue Service email format is {first}.{last}@ci.irs.gov (e.g. jane.doe@ci.irs.gov), used in about 96% of observed Internal Revenue Service work emails. Internal Revenue Service uses 2 address formats in total.
Most likely format — based on 256 observed addresses
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Internal Revenue Service email formats
96.1% of observed Internal Revenue Service addresses use the {first}.{last}@ format.
Email formatExampleShare
{first}.{last}@ci.irs.gov
Examplejane.doe@ci.irs.gov
Share96.1%
{last}.{first}@ci.irs.gov
Exampledoe.jane@ci.irs.gov
Share3.9%
Derived from 256 real observed addresses · data refreshed 2026-05-30. Role-based inboxes (info@, sales@, …) are excluded from format detection.
Verify the pattern before you send
Start with the format that appears most often. For Internal Revenue Service, that means testing {first}.{last}@ci.irs.gov first, then verifying the exact address before it reaches your CRM or sequencer. A pattern can be common and still produce bad guesses when a person uses a nickname, a middle initial, a regional mailbox, or an older alias.
VeriMails checks syntax, MX records, SMTP behavior, disposable domains, and catch-all detection so you can keep valid addresses and skip risky ones. For larger files, credits start at $19 for 10,000 verifications and never expire. Create a free account, test the pattern on a few addresses, then buy more credits only when you need volume. Run the check again before a large campaign if the list is old, because domains change mail routing and people leave.
The most common Internal Revenue Service email format is {first}.{last}@ci.irs.gov (for example jane.doe@ci.irs.gov), used in about 96% of observed Internal Revenue Service work addresses. Internal Revenue Service also uses 1 other format for name collisions.
How accurate is this Internal Revenue Service email format?
This format is derived from 256 real Internal Revenue Service addresses observed across our data, not guessed. To confirm a specific address, use the live verifier above — it checks deliverability in real time.
How do I find and verify a specific person's Internal Revenue Service email?
Apply the most common pattern to the person's name (e.g. jane.doe@ci.irs.gov), then verify it on this page — or use the Find tab to get the likely address from their name automatically.
What other email formats does Internal Revenue Service use?
Beyond {first}.{last}@ci.irs.gov, observed formats include {last}.{first}@ci.irs.gov, in descending order of frequency.
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