How To File A Mechanics Lien: Process Overview (2026)

Who Can File a Mechanics Lien?

Most states allow the following parties to file a mechanics lien:

• General contractors
• Subcontractors
• Material suppliers
• Equipment lessors
• Engineers and architects
• Laborers

New York and several other states also give landscapers and nurseries the right to file a mechanics lien. To qualify, the work must cover permanent improvements rather than maintenance.

Many states restrict unlicensed contractors and subcontractors from filing liens. Others, like California, allow filing but block courts from enforcing liens from unlicensed parties.

Send Required Notices First

Most states require parties to send a preliminary notice when commencing work to inform the owner of their right to file liens if they are not paid. This notice is not a lien. Instead, it simply warns the owner to pay the bill or face a lien.

What to Include on the Lien Form

Your state’s laws on how to file a mechanics lien will describe what you must include. However, generally, liens include the following:

• Property owner’s name
• Property address or description
• Claimant’s name and address
• Work performed or supplies provided
• Amount due

Additionally, some states require liens to include mandatory warnings that explain owners’ options after receiving them.

Filing Deadlines by Project Type

Filing deadlines usually range from 45 days to six months, depending on your state. The project type does not determine the deadline in most states because public projects are usually not subject to mechanics liens.

Instead, unpaid contractors, suppliers and laborers file a payment bond claim for nonpayment. This is one of the main differences between a payment bond versus mechanic's lien.

While the project type might not affect the filing deadline, the claimant’s role might. In some states, general contractors have a different deadline than laborers or suppliers.

Recording the Lien With the County

Liens are effective because they are public records. To record a lien, you take a copy of the signed document to the county recorder’s office where the property is located. The lien must be filed in the property’s location even if the owner or contractor is located elsewhere.

Serving the Owner After Filing

Generally, the claimant must provide a copy of the lien to the property owner, often by certified mail. In some states, the claimant must serve the lien using a process server.

Enforcing or Releasing the Lien

What happens when a mechanics lien is filed? The claimant usually has a set time to enforce the lien by filing a foreclosure lawsuit. If successful, the foreclosure forces a property sale so that the claimant can be paid from the sale proceeds.

The owner and contractor can also agree to settle the payment dispute. The contractor can then release the lien.

Find the Right Mechanics Lien

The right mechanics lien form can position you to get paid for construction projects. Use ConsumerShield’s forms and guides to find a template for your mechanics lien.