Why lien deadlines matter more than the amount you’re owed
A mechanics lien is the strongest collection tool a subcontractor or supplier has. It attaches to the building itself, which gets the owner’s and the lender’s attention in a way an unpaid invoice never will. But the right exists only because a statute created it, and courts enforce those statutes strictly. A preliminary notice sent a week late, or a lien recorded one day after the deadline, can wipe out the claim completely, even when the work was done and the money is plainly owed.
The hard part is that every state counts differently. Some count from your first day on the job (preliminary notices). Most count lien deadlines from your last day of work, some from completion of the whole project, and Texas counts to the 15th day of a later month. Lawsuit deadlines run from the day you record, from the lien deadline itself, or from your last day. This calculator does that counting for you and shows the result as a calendar.
How the calculator works
- Pick the state, job type and your role. Private jobs use the state’s mechanics lien statute. Public jobs use the state’s payment bond law, and federal jobs use the Miller Act in every state. Subcontractors and suppliers also choose who hired them, because many notices apply only to those hired by another sub.
- Enter your dates. First and last furnishing are the days you first and last supplied labor or materials. Project completion is optional; without it, your last furnishing date is used, which gives earlier (safer) dates for rules counted from completion. If you’ve already recorded a lien, enter that date so the lawsuit deadline counts from it.
- Each rule becomes a date. Rules are stored in a versioned data file with the statute for every state and the District of Columbia. A rule can add days, business days or months, land on a set day of a later month, or count back from the lien deadline (for notices of intent due a set number of days before filing).
- Monthly notices repeat. Where a state requires a notice for every month you work, such as Texas, you get one deadline for each month between your first and last furnishing.
- Anything we can’t reduce to one number says “Verify with state statute”. Some rules depend on facts the calculator can’t know, like whether the owner recorded a notice of commencement. We’d rather send you to the statute than guess.
Deadlines are sorted by date and marked passed, due soon (within 14 days) or upcoming. The PDF deadline calendar lists every date with the rule behind it, the notes, your inputs and the statute citations.
A worked example
An electrical subcontractor hired by the GC works on the Riverside Medical Office Building, a private commercial job in Texas. They first furnished on June 8, 2026 and last furnished on September 18, 2026. The GC’s contract with the owner is completed on October 30, 2026. They’re owed $86,400.
| Deadline | Date | Counted from |
|---|---|---|
| Notice of claim, June work | September 15, 2026 | 15th day of the 3rd month after June |
| Notice of claim, July work | October 15, 2026 | 15th day of the 3rd month after July |
| Notice of claim, August work | November 15, 2026 | Falls on a Sunday |
| Notice of claim, September work | December 15, 2026 | 15th day of the 3rd month after September |
| Record the lien affidavit | February 15, 2027 | 15th day of the 4th month after completion |
| Send the affidavit to owner and GC | February 20, 2027 | 5 days after recording |
| Sue to enforce the lien | February 15, 2028 | 1 year after the last day to record |
Two things stand out. First, on a Texas commercial job the notice clock starts month by month: if the June invoice is unpaid on September 28, the June notice deadline has already passed, and the July notice is due in 17 days. Second, the August notice lands on a Sunday, so the safe move is to send it by Friday, November 13.
If this sub records the lien early, say on December 1, 2026, the affidavit still has to be sent within 5 days of that date. The Texas lawsuit deadline is counted from the last day to record, so it stays at February 15, 2028.
Change the state to California and the same dates give a 20-day preliminary notice due June 28, 2026, a lien deadline 90 days after completion (January 28, 2027) and a lawsuit deadline 90 days after you record.
How to use the dates
- Send preliminary notices on every job, at the start. They cost little, many states require them, and a late notice often covers only work furnished after it’s served.
- Put every date in your calendar the day you start a job, not the day an invoice goes unpaid. The first notice deadline in many states comes before the first payment would even be late.
- Count from the right event. Last furnishing means your last day of contract work, not a warranty visit. Completion means the whole project, not your scope.
- Record early. Recording a lien well before the deadline gives you room to fix a mistake in the property description or the amount.
- Get help before the lawsuit deadline. Enforcing a lien is a court case with its own rules. Talk to a construction attorney well before the date the calculator shows.
Where the rules come from
The data file lists the statute for each state, for example Texas Property Code chapter 53 and Government Code chapter 2253, California Civil Code sections 8200 to 9566, and the Miller Act at 40 U.S.C. 3131 to 3134. Every rule is a summary of the general case for commercial work. Residential projects, owner-occupied homes and some project types have different rules that are only noted, not calculated. The data is versioned and the review date is shown on the page and in the PDF. For a plain-language walk-through of one state, with a worked example, see the lien and payment rules by state.
Related tools
Liens are the backstop; getting paid on time starts with a clean billing. Build your monthly billing with the schedule of values and pay application builder, and check what your state says about retainage and late-payment interest with the retainage and prompt payment rules. To see what slow payment does to your bank balance, run the cash flow and retainage forecaster.