What Is a Notice of Intent to Lien (and When to Send It)?

A notice of intent to lien (NOI) is a formal warning. It says you plan to file a mechanics lien if an overdue payment is not resolved by a deadline.

Some states require an NOI before you can file a lien. In others it is optional but still effective. The rules vary by state.

Why send a notice of intent to lien?

An NOI gives owners, GCs, and lenders one last chance to pay. It often works before you spend money to record a lien.

• Gets attention from decision-makers and lenders
• Resolves many pay delays without the cost of filing
• Creates a documented payment demand with a clear deadline
• Keeps relationships intact by following formal steps first

When should you send an NOI?

Send an NOI after normal collection steps fail. That means after the invoice, reminder, and statement go unpaid. Send it before your lien rights expire.

• Some states require an NOI a set number of days before filing
• Even when optional, send it once an approved pay app passes terms
• Track your lien deadline from the last furnishing date

Confirm the requirements in your state and contract documents before you rely on any timeline.

What should an NOI include?

Specifics speed resolution and cut disputes. Make the amount and deadline impossible to miss.

• Project name, job address, and your legal entity
• Owner, GC, and lender legal names where they apply
• Amount due, invoice or pay-app numbers, and the through date
• A brief description of the labor or materials furnished
• A stated deadline to cure before you file
• Signature, contact info, and mailing address

How do you serve an NOI and keep proof?

Use approved delivery methods and keep a clean trail. Proof of service protects the notice.

• Serve by certified mail with return receipt, or as your statute specifies
• Send to all required parties: owner, GC, and lender where they apply
• Save mailing receipts, tracking, and signed cards, and log the dates

How does an NOI fit with prelims and waivers?

Coordinate the NOI with the rest of your billing package. The pieces should agree on amount and parties.

• If your state requires a preliminary notice, confirm it was served on time
• Attach the invoice or pay app and backup like SOV lines and tickets
• Do not sign unconditional lien waivers until funds clear
• Document any change orders tied to the unpaid amount

What are common NOI mistakes?

Small errors can jeopardize your rights. Tighten these early.

• Missing parties, so verify legal names and addresses for owner, GC, and lender
• A late NOI, so calendar lien deadlines from last furnishing
• A wrong amount, so match the SOV, change orders, and approved materials
• No proof, so keep mailing receipts and delivery confirmations

How does software keep collections organized?

Contractor software like Werx puts documentation, billing, and payments in one workflow. Collections move faster and cleaner.

• Create and track AIA and progress pay apps with SOV references
• Attach invoices, change orders, tickets, and photos to the project
• Offer online payments to resolve an NOI quickly
• Sync AR and settlements to QuickBooks Online

Key takeaways

• An NOI warns that you will file a lien if payment stays overdue
• Some states require it before filing, and the rules vary by state
• Send it after collection steps fail and before your lien deadline
• Werx ties invoices, backup, and payments together to speed resolution