Property tax arrears discovered before closing: what a broker actually needs to do.

Municipal property taxes function as a statutory lien against the property itself, and that lien generally ranks ahead of a mortgage or any other private claim registered against the title — regardless of whether the mortgage was registered first. The logic is that the municipality's ability to fund local services shouldn't depend on private lenders getting paid first.

Practically, that means a lender advancing funds on a property with undisclosed tax arrears is, in effect, lending behind a claim it may not even know exists. That's exactly why verifying tax status is treated as a non-negotiable step before funds are advanced, not an optional courtesy check.

A tax certificate is a document issued by the municipality confirming the current tax status of a specific property — what's been paid, what's outstanding, and as of what date. It's the standard way a lawyer or lender confirms tax status independently, rather than relying on the seller's representation that everything is current.

The certificate has to be current as of the time of the loan advance, not simply pulled at the start of the transaction and assumed to still be accurate weeks later — a property can accumulate a missed instalment in the time between an early check and an actual closing date.

• →School taxes, which in Quebec are billed and collected separately from municipal property tax and can carry their own arrears.
• →Unpaid utility charges — water, and in some municipalities gas — that a municipality can attach to the property tax roll if left unpaid.
• →Provincial Offences Act fines, such as unpaid parking tickets in Ontario, which some municipalities can add to a property's tax account under reciprocal collection agreements.
• →Local improvement charges or special assessments a municipality has levied against the specific property for infrastructure work.

None of these show up on a standard credit bureau report, which is exactly why a property-specific tax certificate — not a credit check on the borrower — is the tool that catches them.

Where arrears are identified before closing, the standard fix is straightforward: the outstanding amount is paid out of the sale or mortgage proceeds as part of the statement of adjustments, and a fresh tax certificate is obtained afterward confirming a nil balance. The seller doesn't get to simply promise to pay it later — the lawyer handling the closing builds the payout directly into the funds flow.

This is a routine, well-understood step in any competently run closing — the risk isn't that arrears can't be cleared, it's that they get discovered too late to build into the closing cleanly, forcing a scramble on the day funds are supposed to flow.

The new owner inherits a property with an existing municipal claim against it, discovered only after they've taken title — an unpleasant surprise that's entirely avoidable with a properly ordered tax certificate. Left unresolved for long enough, sustained non-payment can eventually lead a municipality to register formal arrears proceedings against title and, ultimately, list the property for a tax sale — a process governed by each province's own municipal legislation.

Some title insurance policies extend coverage to real property tax arrears left by a previous owner, which is a useful backstop — but it's exactly that, a backstop, not a reason to skip verifying tax status directly as part of a properly run closing.

Confirm early in the file that a current tax certificate has been ordered, and flag it as a specific line item for the closing lawyer rather than assuming it's automatically covered. On any file where the seller has shown other signs of financial strain, treat tax status as worth confirming even earlier than usual — arrears rarely show up in isolation.

None of this requires specialized expertise, just discipline: property tax arrears are one of the more preventable last-minute closing problems in Canadian real estate, precisely because the tool that catches them — a tax certificate — already exists and is routinely ordered. The failure mode is almost always timing, not process.