Contractors, subcontractors and suppliers
Never lose a lien to a missed date.
Every notice and lien deadline for your state, counted from the days you actually worked, with the statute behind each one. Free for 10 states.
Statutes checked October 21, 2026. No account needed.
- First day of workWork dates start the clock
- Last day of workYour deadlines are counted from here
- Invoice dateNot used: a common, costly mistake
- Notice deadlineShown with the statute section
- Lien deadlineShown with the statute section
Tools
Get paid for the work you did.
Mechanics lien deadline calculator
State, role and work dates in; every notice and lien deadline with the statute behind it out. 10 states.
Open tool →Notice and lien document generator
Preliminary notice, notice of intent to lien or lien waiver in your state’s required form.
Late payment interest calculator
Interest owed under your state’s prompt payment law, plus a demand letter.
Why it matters
Missed dates are the most expensive mistake in construction billing.
From industry research and state law, each linked to its source.
of subcontractors say they missed a critical lien deadline in the past two years.
Source: Siteline, 2026 State of Subcontractor Billing Reportis the estimated cost of slow payments to the US construction industry in 2024.
Source: Rabbet, 2024 Construction Payments Reportto serve a Notice to Owner in Florida. Missing it is a complete defense to the lien.
Source: Fla. Stat. § 713.06Contractor Pro · in development
From deadline to filed notice, without the paperwork.
$49 a month, planned price
Pro is not available yet. The deadline calculator is complete and will stay free.
- Preliminary notices, notices of intent and lien waivers in each state’s form
- Every job’s notice and lien dates in one list, with email reminders
- Late payment interest and demand letters under state prompt payment laws
- Seats for your office and project managers
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Mechanics lien deadlines in 10 states
Every state’s notice, lien and lawsuit deadline in one table, with why invoice dates are the wrong starting point.
Read the guideQuestions
Who are these tools for?
General contractors, subcontractors and material suppliers working on private projects in the United States.
Which states are covered?
The lien deadline calculator covers Arizona, California, Colorado, Florida, Georgia, Illinois, New York, North Carolina, Texas, Washington. More states are being added.
Do the tools work for public projects?
Not yet. Public projects usually use payment bond claims instead of liens, with different deadlines.
Is the calculator free?
Yes. It works without an account and runs in your browser. Contractor Pro, in development, will add filled-in forms and reminders.