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Lien Date Calculator

Lien Deadline Calculator

Welcome to our Lien date calculator, or legal deadline calculator for filing liens in the provinces and territories in Canada.  Our filing date calculator provides the legal expiry date, or deadline for filing a lien. Find out the exact date deadline you have to file a lien with our Lien-Pro lien date calculator.

You can use our Lien Date Calculator to determine your lien filing deadline for  British Columbia, Alberta, Saskatchewan, Manitoba, Quebec, Nova Scotia, Newfoundland, Nunavut , Yukon, Northwest Territories and Ontario. Please keep in mind that this lien date calculator should only be used as a guide to determine the deadline when a Builders Lien or Ontario Construction Lien needs to be filed by. Avoid missing a lien filing deadline with our lien date calculator


**ALBERTA:  The Prompt Payment and Construction  Lien  Act  (the "PPCLA”) came into force on August 29, 2022. Lien deadlines in AB have been extended; however, there is a transition period for projects commenced prior to August 29, 2022. Your lien deadline may vary; therefore, Lien-Pro's calculator is conservative and will continue to calculate your lien deadline at 45-days to help mitigate you potentially missing your lien deadline.

Deadline Extensions as of August 29, 2022:

  • Construction industry: from 45 days to 60 days
  • Concrete industry: from 45 days to 90 days (Exception for ready-mix: 90 days if supply of ready-mix or 60 days for install or use of ready-mix)
 Contact our team if you need further clarity on Alberta lien deadlines for your particular situation.



Our lien filing calculator is for illustrative purposes only and is not intended to replace legal advice. Anyone with a potential lien claim should seek legal advice from a qualified legal advisor in their jurisdiction, as to the specific limitation period applicable to the circumstances of their lien.

If you have any questions or concerns regarding the correct lien filing deadline date consult your lawyer, or give us a call and request information on the circumstances that affect lien deadlines calculated by our Lien Date Calculator. You can also schedule a free    introductory consultation on lien filing deadlines.