Expert answer

What does a seller remain responsible for after selling?

A seller commonly remains on the hook, after closing, for indemnity claims within the survival period the purchase agreement sets, for any restrictive covenant like a non-compete they agreed to, for personal guarantees on leases or loans that were not formally released or replaced, and for their own tax filings for the period they owned the business — none of which end automatically just because the sale has closed.

Reviewed

Closing day feels like a clean break, and in the sense that ownership and control pass to the buyer, it is one. But several categories of obligation are specifically designed to survive closing, and a seller who assumes everything ends the moment the funds arrive is often surprised later.

Indemnity claims can still arrive within the survival period

Representations and warranties given in the purchase agreement are usually backed by a survival period, a window after closing during which the buyer can still bring a claim if one of them turns out to have been inaccurate. An escrow or holdback is often set aside specifically to fund claims made during that window, which means part of the sale proceeds can genuinely remain at risk well after the deal is done.

A non-compete or non-solicit starts at closing, it does not end there

Whatever restrictive covenant the seller agreed to as part of the deal typically begins running from closing, restricting the seller from competing with or soliciting away from the business they just sold for a period the agreement itself defines. Enforceability of these clauses varies by province and by how reasonably they are scoped, but the obligation itself is very much alive after closing.

Personal guarantees do not disappear just because the business was sold

A landlord, lender or equipment financier who obtained a personal guarantee from the seller before the sale generally keeps the right to enforce it against that seller until it is formally released or replaced with the buyer’s guarantee. Selling the business does not automatically release a guarantee, and this is one of the more commonly overlooked items heading into closing.

Tax obligations for the ownership period do not transfer to the buyer

A seller remains responsible for filing and paying taxes correctly for the period they actually owned and operated the business, regardless of what happens to the business afterward, and that obligation sits with the seller personally or with the selling corporation, not with the buyer.

Sources

This answer is checked against primary sources. Links were last confirmed on the dates shown.

  1. 01
    Treadstone LawLegal commentary
    Getting Released From a Personal Guarantee on Lease Assignment in Ontario
    treadstonelaw.ca·Checked Aug 14, 2026
  2. 02
    Treadstone LawLegal commentary
    How Long Can a Seller's Non-Compete Last in an Ontario Business Sale?
    treadstonelaw.ca·Checked Aug 14, 2026
  3. 03
    Treadstone LawLegal commentary
    How Long Do Representations and Warranties Survive After an Ontario Business Sale?
    treadstonelaw.ca·Checked Aug 14, 2026
  4. 04
    Canada Revenue AgencyGovernment
    Selling a business
    canada.ca·Checked Aug 14, 2026

Deavo is an advertising and listings platform, not a brokerage, law firm or valuation firm. This page is general information, not legal, tax, accounting or valuation advice, and rules differ by province. Confirm anything you rely on with a qualified professional before you act on it.