An alias search finds every name a candidate has been associated with, including maiden names, former married names, legal name changes, nicknames, and name variations, and searches criminal records under each one. Court records are filed under the name a person used at the time, and they don't update when that name changes. Without an alias search, a background check only finds records under the name on the application.
In background screening, an alias is any name other than a candidate's current legal name that appears in public records, court systems, or other data sources. Common aliases include:
Most aliases have nothing to do with hiding anything. They're an ordinary result of marriage, divorce, and imprecise record-keeping. But from a screening perspective, each one is a place a record can be missed.
An alias search starts with an address history trace. It uses the identifying information the candidate provides to pull their residential history and every name associated with them in public records and other data sources. It also confirms the candidate's identity and flags inconsistencies.
The addresses show which counties need a criminal search, and the aliases show which names to search in each one. Court records are indexed by name and date of birth, and many counties require an exact name match. A search for "Michael" won't return a record filed under "Mike," and a search for a married name won't return a record filed under a maiden name.
When an alias search returns a possible record, it's checked against the candidate's identifiers, such as date of birth, to confirm it belongs to the right person before it appears on the report.
An alias search is only as effective as the county searches that follow it. See what's in a background check report for how county searches fit with the rest of the check.
An alias search is a tool for completeness. It isn't:
A common name, especially a common maiden name, can return records belonging to other people. Every potential match needs to be verified before it's reported or used.
Alias search results are part of the background check report, so the FCRA applies in full. Reporting limits apply under every name: an arrest that didn't lead to a conviction can't be reported after 7 years, whatever name it's filed under. If an alias search surfaces a record you're considering acting on, follow the pre-adverse and adverse action process.
Bchex screening packages can include alias identification built directly into the screening workflow. The address history trace runs at the start of the order, and every associated name automatically feeds into the criminal searches in every relevant jurisdiction. When a potential match appears, Bchex verifies the match against the candidate's identifiers before it appears on the report, protecting against false positives from common names.
Bchex is PBSA-accredited, meaning its data sourcing, accuracy standards, and identity-matching practices have been independently audited.
A background check is only as complete as the names it searches. Court records stay filed under the name a person used at the time, so an alias search is what closes the gap between the name on the application and every name in the record. For employers who need thorough, defensible screening, alias coverage isn't an add-on. It's the difference between a full picture and a partial one.
Run background checks that search every name with Bchex
Yes. In a background check, a maiden name is treated as an alias because records from before a name change stay filed under it.
It's asking for any other name you've used, including maiden names, former married names, legal name changes, and commonly used nicknames. It doesn't imply wrongdoing.
It can be. If a nickname appears in records or you've used it on official documents, list it. Background checks may search common variations either way.
Not always. It depends on the provider and package. Ask whether an address history trace and alias searches are included.
Usually, if the check includes an address history trace. Records filed under the maiden name are then included in the results.
Generally no. A name change doesn't seal or expunge a record, and an alias search will find the prior name and search it.
It should be caught before it's reported. Every potential match should be verified against the candidate's identifiers. Candidates can run a background check on themselves to catch errors early, and dispute them under the FCRA.
Yes. Listing prior names speeds up the check, and most will be found anyway. Leaving one off can look like an attempt to hide something.