201-55 Alexander Street, Vancouver, BC V6A 1B2
RealDream Contracting logo
Project Management

The 10 Percent You Are Legally Required to Hold Back on a BC Renovation

Almost every homeowner we meet has read their renovation contract. Almost none of them can tell you what the holdback is, and a good number of contracts never explain it. That is a problem, because the Builders Lien Act does not treat the holdback as an option you can negotiate away. It puts the duty on the person paying, and on a residential renovation the person paying is you. Here is what the Act actually requires, and why the two deadlines it creates are the only thing standing between a paid invoice and a lien on your title.

By Nima Gerani, Founder, RealDream Contracting
October 3, 2026 10 min read

The short answer

Under British Columbia's Builders Lien Act, the person primarily liable on a construction contract must retain a holdback equal to 10 percent of the value of the work provided or the amount paid, whichever is greater. On a homeowner's renovation contract that person is the homeowner. Liens can be filed for 45 days after completion, and the holdback period runs 55 days, so the 10 day gap is when you confirm title is clear and release the money.

Note: This is general information about how the Builders Lien Act works. Lien deadlines are strict and the consequences of missing one fall on the homeowner, so get advice from a BC lawyer for your own contract and situation before acting on any of it.

The risk the holdback exists to solve

Start with the situation the whole system is built around, because once you see it the rest follows.

You hire a general contractor. The contractor hires a framer, an electrician, a plumber, and buys materials from a supplier. You pay the contractor in full, on time, every invoice. The contractor then fails to pay the electrician.

The electrician can file a claim of lien against your title. Not against the contractor's assets. Against the house you own and paid for. You did nothing wrong and you are still the one with a claim registered on your property.

That is the exposure. The holdback is the mechanism the Act uses to cap it. By requiring you to keep 10 percent of the money back for a defined period, the law gives unpaid subcontractors and suppliers a pool to claim against, and gives you a defined ceiling on what a lien can realistically cost you if you follow the process. Pay out everything early and you have handed away your own protection while the risk stays exactly where it was.

A lien on title is also a practical problem long after the renovation is finished. It clouds title, which shows up when you sell or refinance, and lenders and buyers both care about it.

What section 4 actually requires

The wording matters here, so it is worth quoting. Section 4(1) says the person primarily liable on each contract, and the person primarily liable on each subcontract, under which a lien may arise must retain a holdback equal to 10 percent of the greater of the value of the work or material as actually provided, and the amount of any payment made on account of the contract price.

Two things in that sentence get missed. First, the obligation runs down the chain. You hold back from your general contractor, and your general contractor holds back from each subcontractor, on each subcontract. Second, the 10 percent is measured against whichever is larger, the value of work actually done or the amount you have paid. If you pay ahead of the work, the holdback is calculated on the larger payment figure.

Section 4(2) closes the obvious loophole. The requirement applies whether or not the contract provides for periodic payments or payment on completion. A single lump sum at the end does not exempt you.

And there is a limit on who you hold back from. Section 4(6) states that a holdback must not be retained from a worker, material supplier, architect or engineer. So the 10 percent comes off what you pay your contractor, and off what the contractor pays subcontractors. It does not come off the architect's invoice or a supplier's invoice.

  • 10 percent of the greater of the value of work provided, or the amount paid
  • Applies to the head contract and to every subcontract below it
  • Applies whether payments are periodic or a single payment on completion
  • Not retained from a worker, material supplier, architect or engineer

The holdback account most residential jobs skip

Section 5(1) goes further than most people expect. It requires the owner to establish a holdback account at a savings institution for each contract, to pay the holdback into that account, and to administer the holdback account together with the contractor.

So the Act does not describe the holdback as an amount you simply decline to send. It describes money that leaves your hands, sits in a named account, and is jointly administered.

On the projects we run, this is the single provision homeowners have never heard of, and in our experience it is widely ignored on smaller residential jobs. Both sides treat the holdback as a line the owner deducts from each invoice and keeps in their own chequing account. That is an observation about common practice on the North Shore. What the Act permits is a separate question for a lawyer.

If you want to follow the section as written, raise the account at contract signing rather than at the first invoice. It is a straightforward conversation before work starts and an awkward one halfway through a kitchen tear-out.

What completed means, and who decides

Both deadlines in this system are triggered by completion, so completion needs a definition, and the Act supplies one that surprises people. Section 1 defines completed as substantially completed or performed, not necessarily totally completed or performed.

In plain terms, the clocks can start while a punch list is still open. Waiting for the last cabinet pull to arrive does not hold the deadline back.

The formal trigger is a certificate of completion. Section 7(3) says that on the request of a contractor or subcontractor, the payment certifier must, within 10 days after the date of the request, determine whether the contract or subcontract has been completed, and if it has, issue a certificate of completion.

Section 7(4) then requires that once a certificate is issued, the payment certifier must within 7 days deliver a copy to the owner, to the head contractor if there is one, and to whoever requested it, and post a notice of certification of completion in a prominent place on the improvement.

That posting requirement is doing real work. It is how a subcontractor who never speaks to you finds out the clock has started on their right to file. If you see a notice posted on your own job site, do not take it down. It is part of the legal process, and your file should record the date it went up.

The two clocks: 45 days and 55 days

This is the part worth understanding properly, because it explains why the numbers are what they are.

Section 20(1) sets the filing window. Where a certificate of completion has been issued for a contract or subcontract, claims of lien by the contractor or subcontractor, and by any persons engaged by or under them, may be filed no later than 45 days after the date the certificate was issued. Section 20(2) covers the case with no certificate: 45 days after the head contract has been completed, abandoned or terminated if you engaged a head contractor, or 45 days after the improvement has been completed or abandoned if there is no head contract.

Section 22 gives that deadline its teeth. A lien for which a claim is not filed in the manner and within the time provided in the Act is extinguished. Miss the window and the lien right is gone.

Section 8 sets the holdback period on the same trigger. Where a certificate of completion is issued, the holdback period expires at the end of 55 days after the certificate is issued. Where there is no certificate, it expires 55 days after the head contract is completed, abandoned or terminated, or 55 days after the improvement is completed or abandoned.

Both clocks start at the same moment. One runs 45 days, the other 55. The 10 day difference is your working margin: the filing window has closed, so you can check title knowing no new lien can appear behind you, and only then release the money.

The two clocks, from one starting point
Day What happens What the homeowner does
Day 0 Certificate of completion issued, or the head contract is completed, abandoned or terminated where there is no certificate Record the exact trigger date in writing and keep the posted notice on file
Days 1 to 45 The filing window is open. The contractor, subcontractors, and anyone engaged by or under them may file a claim of lien Keep holding the 10 percent. Do not release early, whatever the reason given
Day 45 Filing deadline under section 20. A lien not filed in the manner and time the Act provides is extinguished under section 22 Nothing yet. The holdback period is still running
Days 46 to 55 No new lien can be filed against this contract, and the holdback is still legally retained Search title. Confirm nothing was filed inside the 45 days
Day 55 Holdback period expires under section 8 Release the holdback if title is clear
After release Under section 8(4), payment may be made after expiry and the liens of the person paid are discharged, unless a claim of lien was filed in the meantime or proceedings were started to enforce a lien against the holdback Keep the title search and payment records with the contract file

Releasing the money, and the one condition on it

Section 8(4) is the release rule. Payment of a holdback required to be retained under section 4 may be made after expiry of the holdback period, and all liens of the person paid are then discharged, unless in the meantime a claim of lien is filed by one of those persons, or proceedings are commenced to enforce a lien against the holdback.

Read the exception carefully, because it is the reason the title search in the 10 day gap is not optional. The discharge only follows if nothing was filed and no enforcement proceedings were started. Paying out without checking means you are relying on an assumption instead of a search.

There is one more provision worth knowing if your contractor asks for part of the holdback earlier than you expected. Section 9(1) lets a contractor collect a subcontractor's share of the holdback early, once that subcontract has its own certificate of completion and its own 55 days have passed without a lien. So an early request is not automatically improper, and it is also not automatic. It attaches to a specific subcontract that has cleared its own clock.

If your contract does not spell out how the holdback is calculated, where it is held, and when it is released, that is worth fixing before signing rather than arguing about at the end.

How to run this on a real renovation

None of this is difficult, but it does require someone to keep dates. On the projects we manage, the holdback file is a short list that lives beside the contract.

The habit that prevents most trouble is writing the trigger date down the day it happens, rather than reconstructing it in month three from memory and emails. Every deadline in this system counts forward from that one date.

  • Agree in writing, before work starts, how the 10 percent is calculated and where it is held
  • Deduct the holdback from every progress payment to the contractor, because section 4(2) applies to periodic payments too
  • Do not deduct it from an architect, engineer, worker or material supplier invoice
  • Record the date a certificate of completion is issued, and keep the posted notice
  • Search title after day 45 and before releasing at day 55
  • Keep the title search result and the release payment record with the contract file

Sources

Frequently asked questions

Do I have to hold back 10 percent on a home renovation in BC?

Yes. Section 4(1) of the Builders Lien Act requires the person primarily liable on the contract to retain a holdback of 10 percent of the greater of the value of the work or material actually provided and the amount of any payment made on account of the contract price. On a homeowner's renovation the person primarily liable on the head contract is the homeowner. Section 4(2) confirms it applies whether the contract uses periodic payments or a single payment on completion.

Can a subcontractor lien my house if I already paid my general contractor in full?

Yes, and this is the exact risk the holdback addresses. Section 20 lets the contractor or subcontractor, and any persons engaged by or under them, file a claim of lien within the filing window, and the claim attaches to your property. Paying your general contractor in full does not by itself stop an unpaid electrician or framer from filing. Holding back the 10 percent for the full holdback period is what limits your exposure.

Why is the lien deadline 45 days but the holdback period 55 days?

Both clocks start from the same event, either the issuing of a certificate of completion or completion, abandonment or termination of the contract. Section 20 closes the filing window at 45 days and section 22 extinguishes any lien not filed in time. Section 8 keeps the holdback period running to 55 days. The extra 10 days is your margin to search title after the filing window has closed and confirm nothing was registered before you release the money.

Does the Builders Lien Act really require a separate holdback bank account?

Section 5(1) requires the owner to establish a holdback account at a savings institution for each contract, pay the holdback into it, and administer that account together with the contractor. On smaller residential jobs across the North Shore we see this step skipped, with the owner simply deducting the 10 percent and keeping it in their own account. That is our observation of common practice, and it is worth raising the account with your contractor at signing if you want to follow the section as written.

Do I hold back 10 percent from my architect or my tile supplier?

No. Section 4(6) states that a holdback must not be retained from a worker, material supplier, architect or engineer. The holdback comes off what you pay your general contractor under the head contract, and off what your contractor pays each subcontractor. If you are paying a designer or a supplier directly on a North Vancouver renovation, their invoices are paid in full.

What does completed mean under the Act if my punch list is still open?

Section 1 defines completed as substantially completed or performed, not necessarily totally completed or performed. So the clocks can start while small items remain outstanding. On a Lynn Valley kitchen where the counters are in, the appliances run, and only a few finishing items are left, waiting for the final trim piece does not push the 45 and 55 day deadlines back.

Who issues the certificate of completion, and how long does it take?

The payment certifier issues it. Section 7(3) says that on the request of a contractor or subcontractor, the payment certifier must within 10 days of the request determine whether the contract or subcontract has been completed, and issue a certificate of completion if it has. Section 7(4) then requires delivery of a copy to the owner and the head contractor within 7 days, along with a posted notice on the improvement.

There is a notice posted on my job site about completion. Should I take it down?

Leave it up. Section 7(4) requires the payment certifier to post a notice of certification of completion in a prominent place on the improvement after issuing the certificate. It is how a subcontractor who has no direct contact with you learns that the filing window has started. Note the date it appears and keep a copy in your contract file, because your 45 and 55 day calculations count from the certificate date.

What happens if no certificate of completion is ever issued on my renovation?

The deadlines still run, from a different trigger. Section 20(2) sets the filing deadline at 45 days after the head contract has been completed, abandoned or terminated where you engaged a head contractor, or 45 days after the improvement has been completed or abandoned where there is no head contract. Section 8(2) mirrors that for the 55 day holdback period. Many residential renovations never involve a certificate, so this is the more common path.

My contractor wants part of the holdback released before the job is finished. Is that allowed?

It can be. Section 9(1) lets a contractor collect a subcontractor's share of the holdback early, once that subcontract has a certificate of completion and its own 55 day period has passed without a lien being filed. The request has to attach to a specific subcontract that has cleared its own clock. A general request to release part of the holdback because the job is going well is a different thing.

What happens if I release the holdback and a lien was already filed?

Section 8(4) says payment may be made after the holdback period expires and the liens of the person paid are then discharged, unless in the meantime a claim of lien was filed by one of those persons or proceedings were commenced to enforce a lien against the holdback. The discharge depends on that condition being met, which is why a title search between day 45 and day 55 matters. If a lien has been filed, get legal advice before paying anything out.

Why does a lien matter if I am not planning to sell my house?

A claim of lien is registered against your title, which clouds it. That becomes a practical problem at any point where someone examines your title, most obviously a sale or a refinancing, and both buyers and lenders take it seriously. A homeowner in Deep Cove who finishes a renovation in the spring and applies to refinance the following year will meet the lien at that point, long after the trades have left.

Related service

Project management

See how we handle project management projects across the North Shore.

Learn about project management

Free quote

Get a project estimate

Share a few details and we'll respond within one business day.

Ready to build?

Talk to RealDream Contracting.

Call (604) 401-4849, send an inquiry, or book a consultation to discuss your project on the North Shore.

RealDream × Realtors

Let's build something together.

Leave your details. Let's talk about working together.

An introduction starts the conversation. Partnership terms are agreed together.

Prefer a conversation? (604) 401-4849