Notice of Intent to File a Lien: Deadlines, Delivery & How It Works

A notice of intent to file a lien (NOI) is a formal written notice to a property owner, general contractor, or lender stating that you intend to file a mechanics lien if payment is not received by a specific date. It serves as an early warning and, in most states, is a legal prerequisite to filing a full mechanics lien. The deadline to send it varies by state and project type—often 30 to 90 days after your first work or supply—and is one of the most critical dates in construction payment recovery.

What Is a Notice of Intent to File a Lien?

A notice of intent to file a lien is a statutory notice required in most states before you can file a mechanics lien against a property. It tells the property owner and other parties that you plan to file a lien unless you receive payment by a certain deadline. Unlike a mechanics lien itself, which is a formal legal claim recorded at the county level, a NOI is typically sent by certified mail or email and must meet specific language and timing requirements set by your state.

The NOI accomplishes several things simultaneously. It creates a record that you made a demand for payment. It often stops the statute of limitations on when you can file a mechanics lien. And it puts the owner and their lender on notice that they may be liable for your claim, which often motivates faster payment decisions.

When Must You Send a Notice of Intent to File a Lien?

Timing is everything with a notice of intent to file a lien. Most states require you to send it before or alongside your mechanics lien filing, but the exact deadline depends on two factors: when your work or supply began, and your state's rules.

In most jurisdictions, the deadline clock starts on your first date of work or supply to the project. From there, you typically have 30 to 90 days to send the NOI, though some states allow longer windows and others are stricter. A few states combine the NOI and preliminary notice into a single document; others require you to send both. Some states don't require a notice of intent at all but instead require a preliminary notice (a notice sent earlier in the project).

Because state rules vary significantly, you should verify the exact deadline in your state before sending. Free deadline lookups for all 50 states can help you confirm your filing window. Sending a NOI late—or missing the deadline entirely—often bars you from filing a mechanics lien, meaning you lose a critical collection tool.

Who Receives the Notice of Intent to File a Lien?

The recipient of your notice of intent to file a lien is usually the property owner or project owner, though some states also require you to send it to the general contractor or the lender. A few states require notice to all three parties.

Delivery must meet legal standards. Most states require certified mail with return receipt (so you have proof of delivery), though some now allow email to a known address or personal delivery. A few states permit posting on the property as a backup if certified mail delivery fails. Always use the delivery method your state allows; using email when only certified mail is required leaves you vulnerable to a claim that your notice was invalid.

Keep the delivery receipt or email confirmation. If you later file a mechanics lien and it is contested, proof that you sent the notice by the deadline is often your strongest evidence of compliance.

How to Send Your Notice of Intent to File a Lien

Sending a notice of intent to file a lien involves several concrete steps:

1. Draft the notice. Include your name and business address, a description of the work or materials supplied, the date you began work or supply, the amount owed, and the date by which payment must be made (often 10–30 days from the notice date). Use language that clearly states your intent to file a mechanics lien if payment is not received.
2. Verify the recipient's address. Send the notice to the property owner's address or the address listed in public records. If you're unsure, check the county assessor's website or property deed.
3. Choose your delivery method. Most subcontractors and suppliers use certified mail with return receipt, which costs roughly $7–$10 per notice and provides proof of delivery. Some states allow email; send it to a known business email address and request a read receipt.
4. Send by the deadline. Calculate your deadline based on your state's rules and your first date of work or supply. Don't wait until the last day; mail processing delays can cause you to miss the window.
5. Retain proof of delivery. File away the certified mail receipt, green card, or email delivery confirmation. You'll need it if your notice is ever questioned.
6. Follow up if payment doesn't arrive. If payment isn't received by the deadline stated in the notice, prepare to file your mechanics lien if you choose to pursue that step. Your notice itself doesn't create a lien; it only preserves your right to file one.

Notice of Intent vs. Preliminary Notice vs. Mechanics Lien

Construction payment law uses several overlapping documents, and confusion between them is common. Here's how they differ:

Many subcontractors and suppliers think a notice of intent to file a lien is the same as a preliminary notice. It's not. A preliminary notice is often sent earlier and to different recipients. Depending on your state and the type of project, you may need to send both—or your state may combine them into one. Check your state's rules or state-specific deadline pages to confirm what's required.

What Happens After You Send a Notice of Intent to File a Lien?

Sending a notice of intent to file a lien doesn't automatically create a lien or put a hold on payment. Instead, it:

• Notifies the owner and lender that they may face a lien claim if payment is not made.
• Creates a deadline after which you can file a mechanics lien without risk of a procedural challenge (in many states).
• Often prompts the general contractor or owner to pay faster, since a lien complicates refinancing, sale, or construction lending.
• Preserves evidence that you made a formal demand for payment.

If payment is received by the deadline stated in your notice, you're done. If payment is not received and you choose to pursue a lien, you can file your mechanics lien (in most states) after the notice period expires. Filing a lien involves drafting and recording a document at the county recorder's office and, in many states, sending a copy to the owner and lender.

Common Mistakes When Sending a Notice of Intent to File a Lien

Missing the deadline. The most common mistake is simply forgetting to send the NOI by the required date. Mark your calendar and set reminders as soon as you begin work or supply.

Sending to the wrong recipient. Make sure you send the notice to the property owner (not just the general contractor) and to any other parties your state requires.

Using the wrong delivery method. If your state requires certified mail and you send email instead, your notice may not be legally valid. Verify your state's rules before sending.

Failing to keep proof of delivery. If you can't prove you sent the notice by the deadline, you lose your lien rights. Save the certified mail receipt, green card, or email delivery confirmation indefinitely.

Sending too early or too late. Some subcontractors send a NOI weeks after first work, thinking it's a preliminary notice. Others wait so long that the deadline passes. Calculate your deadline carefully.

Using incorrect property description. Include the legal description or street address of the property so the notice is clearly tied to the right project and recipient.

Automating Notice Deadlines Across Multiple Projects

For companies managing many projects simultaneously, tracking notice of intent to file a lien deadlines by hand is error-prone. Many AR and credit teams now use deadline-tracking tools to calculate deadlines automatically based on project start dates, state rules, and project type, then send reminders weeks in advance.

LienWarden, for example, tracks notice of intent deadlines in all 50 states and computes them automatically from your project dates. Paid plans include the ability to draft and deliver the notice itself—either by email or by USPS Certified Mail for a flat $19 per notice—so you don't have to manage the process manually.

FAQ: Notice of Intent to File a Lien

What's the difference between a preliminary notice and a notice of intent to file a lien?

A preliminary notice is sent early (often within 10–30 days of first work) to notify the owner that you may have lien rights. A notice of intent to file a lien is a formal demand for payment, sent later (often 30–90 days after first work) and states you intend to file a lien if payment is not made. Some states require both; others require only one. Check your state's rules.

Can I send a notice of intent to file a lien by email?

It depends on your state. Many states now allow email if sent to a known business email address. However, some still require certified mail. Use certified mail unless your state specifically allows email. When in doubt, send by certified mail to be safe.

What should I include in my notice of intent to file a lien?

Include your name and business address, the property address or legal description, a description of the work or materials supplied, the date you began, the total amount owed, the date by which payment must be made, and a clear statement that you intend to file a mechanics lien if payment is not received. Don't guess on language; review your state's statutory requirements or use a template that matches your state's law.

If I send a notice of intent to file a lien, do I have to file a mechanics lien later?

No. A notice of intent to file a lien is a warning. If payment is received by the deadline, you don't need to file a lien. If payment is not received and you choose not to pursue a lien (for business or other reasons), you can simply wait out any statute of limitations. However, if you don't send the notice and the deadline passes, you may lose the right to file a mechanics lien at all.