T1135 Threshold Checker
Enter your specified foreign property at original cost. The tool converts each asset to CAD using the Bank of Canada annual rate for its acquisition year and tells you whether you need to file T1135 — and which method (Simplified or Detailed) applies.
Never miss the T1135 deadline
This page is free and needs no email. Leave your address for a reminder before the T1135 filing deadline, and a note when the $100,000 threshold changes.
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T1135 asks what it cost and what it earned
The form wants cost, income and location for each foreign property. BorderBird holds cost base, per-property rental income and the currency it arrived in, so the figures are not reassembled from memory in April.
Try BorderBird free →Free for your first property. This calculator stays free either way.
⚠️ Important Disclaimer
This content is for informational purposes only and does not constitute legal, tax, accounting, or financial advice. Tax laws change frequently — always verify with the CRA and IRS or consult a qualified cross-border tax accountant before making decisions.
BorderBird is a rental-management and record-keeping tool. It is not an accountant and does not provide accounting, tax, or legal advice.
Rates and rules reviewed against CRA guidance and current for the 2026 tax year — last reviewed August 2026. Tax rules change; confirm against the source before filing.
Foreign rental property
How T1135 thresholds work
- Under CAD $100,000 total cost base — no T1135 required.
- CAD $100,000 to $250,000 — T1135 required, Simplified Method (Part A): disclosure by category and country.
- Over CAD $250,000 — T1135 required, Detailed Method (Part B): per-asset disclosure including maximum cost during year, year-end cost, gross income, and gain on disposition.
The threshold applies if exceeded at any time during the year, not just at year-end. So if you bought a $300,000 USD property in March and sold it in October, T1135 still applies for that year.
FAQ
What is T1135?
What counts as 'specified foreign property'?
Cost base or market value?
Simplified vs Detailed method?
What's the penalty for not filing?
Does my US LLC count?
When is the T1135 deadline?
T1135 asks what you held all year, not just today
BorderBird keeps a running cost base for every foreign property you own, in the currency you bought it in, so the $100,000 question has an answer you can show your work for.