A security clearance does not come with a fixed expiration date. It stays valid as long as it’s maintained, either through a periodic reinvestigation tied to your clearance level or, increasingly, through the government’s continuous vetting program. So the honest answer to when a security clearance expires is: it depends on your level, whether you’re still in a cleared position, and whether anything has surfaced that puts your eligibility in question. The practical expiration most people run into isn’t the reinvestigation cycle at all. It’s what happens after you leave a cleared job.
Reinvestigation Cycles by Level
Federal law sets the traditional schedule that has governed clearances for decades:1Office of the Law Revision Counsel. 50 USC Chapter 45, Subchapter III – Security Clearances and Classified Information
- Top Secret: reinvestigation every 5 years
- Secret: reinvestigation every 10 years
- Confidential: reinvestigation every 15 years
Missing that deadline doesn’t automatically revoke the clearance, but it puts eligibility at risk. If the new investigation isn’t initiated before the period lapses, access to classified information can be suspended until a fresh investigation is completed and adjudicated. If you’re in an active cleared position, your sponsoring agency or employer usually tracks the date and starts the paperwork for you.
Continuous Vetting Is Replacing the Old Timeline
The fixed cycle above is being phased out. Under the Trusted Workforce 2.0 framework, the federal government is replacing periodic reinvestigations with continuous vetting, an automated system of ongoing record checks that flags concerns in near-real time instead of waiting years for a scheduled review.2Performance.gov. Trusted Workforce 2.0 Transition Report The entire national security workforce was enrolled in continuous vetting by the end of 2022, and enrollment of the non-sensitive public trust workforce began in 2024.
Continuous vetting pulls from government and commercial databases, criminal records, and financial sources on a rolling basis. If something concerning surfaces, it triggers a review immediately rather than sitting undiscovered until your next five- or ten-year checkpoint. The Defense Counterintelligence and Security Agency has already cut periodic reinvestigations by 54% as part of this shift.3Defense Counterintelligence and Security Agency. DCSA Personnel Vetting Initiative Transforms Security Clearance Investigation Process
For the expiration question, this is the key change. Under continuous vetting, there’s no single moment when your clearance is “up for renewal.” Eligibility is being assessed continuously. If nothing flags, your clearance persists without a bottleneck reinvestigation.4Defense Counterintelligence and Security Agency. Continuous Vetting One Sheet Executive Order 13467 provides the legal foundation for the shift,5GovInfo. Executive Order 13467 and the underlying National Background Investigation Services system is projected to reach full capability by fiscal year 2027.6U.S. Government Accountability Office. Observations on the Implementation of the Trusted Workforce 2.0
Eligibility Is Not the Same as Access
One of the most misunderstood pieces of the clearance system is the split between eligibility and access. Eligibility means the government has determined you meet the standards to handle classified information. Access means you’re currently authorized to see it because your job requires it. You can be eligible without having active access, and that distinction is what most “expiration” questions actually turn on.
When you leave a cleared position, your access is removed because you no longer have a need to know. Your eligibility determination doesn’t vanish with it. It stays on file, and a new employer with classified contracts can potentially reactivate that eligibility without starting a brand-new investigation. The question is how long the gap can last.
What Happens When You Leave a Cleared Job
This is where the real expiration clock lives. The widely applied rule is that your eligibility can remain on file for roughly 24 months after you leave a cleared position. During that window, a new employer can sponsor you and request that your eligibility be reactivated without a full new investigation, provided nothing concerning has surfaced in the interim.
After the 24-month mark, you’re generally looking at a completely new investigation. That means a fresh background questionnaire, new reference checks, and potentially months of waiting. For Top Secret clearances, which involve substantially more fieldwork, the time investment is significant.
There’s also a related concept called loss of jurisdiction. This happens when the adjudicating agency loses authority to make a determination about your clearance, most commonly when you separate from service while an investigation or adjudication is still pending. Loss of jurisdiction isn’t a denial or revocation. It’s an administrative freeze. The case stops until a new sponsoring employer restores the agency’s authority to proceed.
Moving Between Agencies or Contractors
If you’re moving between federal agencies or between cleared contractors, you shouldn’t have to start over. Security Executive Agent Directive 7 requires agencies to accept existing clearances reciprocally, so a Secret clearance at Agency A should transfer to Agency B without a new investigation.7Office of the Director of National Intelligence. Security Executive Agent Directive 7 – Reciprocity of Background Investigations and National Security Adjudications
Reciprocity has limits, though. A receiving agency can decline to accept your clearance if:
- New adverse information has come to light since your last investigation.
- Your most recent background investigation is more than seven years old. It may still be accepted case-by-case, but the agency must immediately initiate a reinvestigation.
- Your eligibility was granted on an interim, temporary, limited, or one-time basis.
- Your eligibility is currently denied, revoked, or suspended.
- Your last adjudication was recorded with an exception under the national adjudicative guidelines.
The receiving agency can also ask you to identify changes since your last background questionnaire and may interview you about them, but that falls well short of a full new investigation.
Reporting Requirements That Keep Your Clearance Alive
Between investigations, or while enrolled in continuous vetting, you’re expected to self-report certain life events to your security officer. Security Executive Agent Directive 3 sets out the specifics.8Office of the Director of National Intelligence. Security Executive Agent Directive 3 – Reporting Requirements The main categories:
- All personal foreign travel, reported before departure when possible.
- Continuing association with a foreign national involving a bond of affection or personal obligation, reported as soon as you become aware.
- Foreign financial interests, including bank accounts, property, investments, or business interests abroad.
- Any arrest, charge, or conviction, reported within 72 hours.
- Significant financial changes such as bankruptcy or wage garnishment.
- Marriage or cohabitation with a foreign national, reported as soon as it occurs.
- Any unauthorized disclosure of classified or sensitive information.
Proactive reporting works in your favor. When adjudicators review a flagged issue, they consider whether you voluntarily disclosed it, cooperated, and took steps to resolve the concern. Something that surfaces later through continuous vetting when you failed to report it looks far worse than the same issue brought forward yourself. In practical terms, this is how you keep a clearance from quietly expiring on you between formal reviews.