Ask ten BC owner-builders when the holdback gets released and most will say 45 days. That answer is wrong, and it is wrong in the direction that costs money.
The BC Builders Lien Act runs two separate clocks on every construction contract. They start on the same event and they finish ten days apart. Owners who collapse them into one number release the final payment while a claim can still be sitting on their title.
The two sections
Section 20 sets the time for filing a claim of lien. A claim must be filed no later than 45 days after the certificate of completion is issued. Where no certificate was issued, the window runs 45 days from the day the head contract is completed, abandoned or terminated.
Section 8 sets the holdback period. Where a certificate of completion was issued, the holdback period expires at the end of 55 days after that certificate.
Same trigger. Different sections. Different day counts.
Why the gap exists
The ten days are the owner’s search window.
Once day 45 passes, no new claim can attach for that contract. Section 22 extinguishes a lien that was not filed as required by the Act. So the filing risk is closed at day 45, and the owner then has ten days to search title, confirm nothing was registered at the last minute, and release the money on day 55.
Pay on day 45 and you have skipped that check. A claim filed on the morning of day 45 is validly filed. It may not appear on a title search you run that afternoon. The money leaves, the lien stays, and now you are negotiating with a claimant while holding no funds.
What this looks like on a fourplex
Say your certificate of completion is issued on October 1.
The filing window runs to November 15. Between November 16 and November 25 you search title. If it is clear, you release the holdback on November 25.
If your general contractor is pushing for the holdback on November 15 because “the lien period is over”, the lien period for filing is over. The holdback period under section 8 has ten days left to run. Those are different things and the Act treats them differently.
The related mistake
Owners who get the dates right sometimes get the fund wrong.
Section 4 requires a holdback of 10% of the greater of the value of work and material actually provided, or the payment made on account of the contract price. The phrase doing the work there is the greater of. If a trade performed $100,000 of work and you pay $60,000 this month, the holdback is $10,000, not $6,000.
An owner who calculates 10% of the payment rather than 10% of the work has under-retained, and the shortfall shows up exactly when a claim arrives.
What to do
Get a certificate of completion if anyone on your project can issue one. It fixes the date both clocks run from and replaces an argument with a document.
Then put three dates in your calendar: the certificate date, day 45, and day 55. Search title between them, and release on day 55.
Check what your lot can build before you sign the construction contract that these deadlines will attach to.
More detail on both deadlines is in the builders lien hub, and the 10% holdback page covers the calculation.

