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Massachusetts Mechanics Lien Law

Everything you need to know to protect your lien rights in Massachusetts

Critical Deadlines

60

days - Preliminary Notice

90

days - Lien Filing

90

days - Enforcement

📋Preliminary Notice

REQUIRED
Deadline
60 days from first furnishing
Form Name
Notice of Identification
Must be Served To
Owner
Delivery Method
Registered mail or personal delivery

Warning: Missing this deadline may result in losing ALL lien rights.

⚖️Lien Filing

Filing Deadline
90 days from last work
Where to File
Registry of Deeds
Filing Fee
$50-75
Description
Within 90 days of last furnishing

⏱️Enforcement

Deadline to Sue
90 days from filing lien
Description
Within 90 days of filing lien (very short!)

Note: If you don't file a lawsuit within this period, your lien becomes unenforceable.

🏛️Public Projects (Bond Claims)

Preliminary Notice
Required within 65 days
Bond Claim Deadline
65 days from completion
Governing Statute
M.G.L. ch. 149 §29

Special Rules & Contractor Protections

Pay-if-Paid

⚠️ Enforceable

Retainage Cap

5%

Prompt Payment

15 days

License Required

⚠️ Yes - unlicensed may lose lien rights

💡 Important Notes for Massachusetts

  • Notice of Identification required
  • VERY SHORT 90-day enforcement deadline - act fast!
  • Home improvement contractor registration required

📚 Statute References

Lien Law:
M.G.L. ch. 254 §2
Bond Law:
M.G.L. ch. 149 §29
Prompt Pay:
M.G.L. ch. 149 §29E

Protect Your Rights in Massachusetts

SubShield automatically applies Massachusetts lien laws when analyzing your contracts. Get deadline tracking, compliance alerts, and personalized risk analysis.

This information is for educational purposes only and is current as of January 2026. Always consult with a licensed Massachusetts construction attorney for your specific situation.