Glossary definition
Assessment date
The date the IRS formally records a tax liability.
What it means
The date the IRS formally records a tax liability. In an IRS collection matter, the term should be read with the relevant tax periods, notices, account transcripts, deadlines, and current IRS guidance. Similar words can describe different legal or administrative steps, so the underlying record matters more than a shorthand label. Software can organize the facts, but it does not replace professional judgment when rights, enforcement, or disputed liability are involved.
Why it matters
The assessment date often starts important federal collection periods. It is not necessarily the filing date, notice date, or date a taxpayer first learned of the balance.
Related terms
Educational information only. Confirm current IRS procedures and seek qualified advice for your facts.