10 Common Mistakes Beginners Make at Tax Sales
Tax sales can be profitable — but they are unforgiving of the errors that most beginners make. Learn from others' expensive lessons before you bid.
The biggest tax sale mistakes fall into three categories: insufficient research before bidding (title, environmental, zoning), poor bid math (overbidding, missing hidden costs), and wrong expectations afterward (redemption, occupants, timeline to resale). All are avoidable with proper preparation.
Canada's tax sale system is designed to be open to all bidders, but the lack of standard disclosure requirements — compared to a traditional MLS sale — means buyers accept far more risk. The properties are sold 'as is, where is' with no representations or warranties. Here are the ten mistakes we see most often, and how to avoid each one.
Skipping the Title Search
A tax sale does not always clear all encumbrances. CRA liens (Crown interest), environmental orders, easements, rights-of-way, and utility agreements may survive the sale depending on the province. A title search costs $300-$800 and takes 1-3 days. A bad property can cost you $50,000+.
Fix: Always run a full title search before bidding. In Ontario, check POLARIS (Ontario Land Registry). In Alberta, check SPIN2. Hire a real estate lawyer if you are not familiar with title searching.
Ignoring Environmental Contamination
Properties with contamination (former gas stations, dry cleaners, industrial sites) may have environmental liens that survive a tax sale. Remediation can cost $100,000 to over $1,000,000. Check your provincial environmental registry before bidding on any commercial, industrial, or former agricultural property.
Fix: Search the Ontario Record of Site Condition, BC Site Registry, or Alberta Environmental Site Assessment registry. Commission a Phase I ESA ($1,500-$3,500) for any commercial or industrial property.
Overbidding — Paying More Than the Property is Worth
Competitive auctions (especially Alberta) can push bids above assessed value. Remember: assessed value is not market value, and market value does not account for deferred maintenance, environmental risk, or the costs of holding through the redemption period. Many beginners win but still lose money.
Fix: Set a maximum bid before you arrive. Use the formula: Max Bid = (Market Value) MINUS (All-In Costs) MINUS (Target Profit). Factor in legal fees, transfer taxes, insurance, holding costs, and potential renovation expenses.
Not Budgeting for All-In Costs
Beyond the bid, expect: land transfer tax (0.5-2%), legal fees ($800-$2,500), title insurance ($200-$600), survey ($1,200-$3,500), Phase I ESA if needed ($1,500-$3,500), vacant property insurance ($400-$1,200/year), annual property taxes, and potential renovation or remediation costs. These can add 10-25% to your total cost.
Fix: Use the TaxSalesPortal investment calculator to model your all-in cost scenario before bidding. Always add a 15% contingency reserve to your estimates.
Misunderstanding the Redemption Period
Many first-timers don't know that in most provinces (Ontario, BC, Quebec, Manitoba, NB, PEI: 1 year; Saskatchewan, NS, NL: 6 months), the original owner can reclaim the property during the redemption period. If this happens, you get your money back plus interest — but you lose the property. Budgeting to flip in 3 months is unrealistic in a 1-year redemption province.
Fix: Know the redemption period for your province before bidding and factor it into your cash flow model. Alberta has no redemption period — ideal for investors wanting rapid turnaround.
Not Checking Municipal Work Orders
Municipalities may have issued work orders requiring the property owner (that's you, once you take title) to repair a structure, remove a building, remediate an issue, or comply with a bylaw. These orders can mandate expensive work within 30-90 days of title registration — regardless of how you acquired the property.
Fix: Call the municipality's bylaw or building department before bidding and ask for all outstanding orders or infractions on the property. In Ontario, you can also check with the electrical safety authority (ESA) for outstanding work.
Assuming You Can Evict Immediately
Winning the bid gives you an interest in the property — not immediate possession. Existing tenants are protected by provincial tenancy law. Even after title registration, you cannot simply lock out tenants. A no-fault eviction in Ontario requires giving 60 days notice and filing with the LTB — a process that can take 6-18 months in backlogged regions.
Fix: Investigate occupancy status before bidding. Factor in potential holding costs of 6-18 months if the property appears occupied. Hire a landlord-tenant lawyer before taking any possession steps on an occupied property.
Ignoring Zoning and Land Use Restrictions
A piece of land may be cheap for a reason — it may be in a floodplain, Conservation Authority-regulated area, Agricultural Land Reserve (BC), or Greenbelt (Ontario), or have road allowance issues that prevent building. Buying land you cannot develop or sell easily is a common mistake with rural and vacant land properties.
Fix: Check the municipal zoning bylaw, provincial land use maps (MNRF in Ontario, ALC in BC), and any applicable Conservation Authority mapping before bidding on any vacant land or rural property.
Financing Mistakes — No Cash on Hand
Traditional mortgage lenders will not lend on a tax sale property before title is registered. This means you need cash (or a hard money / private lender with fast turnaround) for the full purchase price at the time of payment — usually within 14 days of winning. First-timers who plan to get a bank mortgage after winning are surprised when the bank declines.
Fix: Arrange your financing before you bid. Options: personal savings, HELOC on an existing property, private/hard money lender, or joint venture with a cash partner. Never bid more than you can fund in 14 days.
Going In Without Any Research on the Property's History
Why was this property in tax arrears? Was it abandoned? A family dispute? A developer who ran out of money? The history often reveals hidden issues — building code violations mid-renovation, structural problems discovered by a previous owner, or a property stuck in estate litigation. A property photo on Google Street View from 3 years ago vs. today tells a story.
Fix: Research the property's last 10 years of ownership. Check past permit applications with the municipality. Review aerial and street-level photos. Talk to neighbours if possible. The reason a property ends up in tax sale often predicts what surprises await.