Guide
Everything you need to understand and use the Deductible Interest Tracker — from core concepts to event-by-event reference.
The Smith Manoeuvre, explained
A plain-language walkthrough of the whole strategy — how it works, whether it's worth it, and the risks — with links into every detail below.
Read the guide →Getting started
How interest deductibility works
The core concept: borrow to invest, and the interest may be deductible. Why every transaction can change the math.
Read more →How balances are tracked
Events, not transactions. How the app maintains your deductible and non-deductible balances and recomputes everything from scratch.
Read more →Setting up your first tracking
What you need, the basic cycle of events, and what the app does at each step.
Read more →Understanding statements
How the Statements view relates to events — derived transactions formatted like your bank statements, useful for reconciliation.
Read more →Accounts
Rename your default accounts, add external accounts, and enable brokerage margin when your history needs it.
Read more →Scenarios
Real-world situations that change the deductible proportion of your interest.
Selling holdings
How sale proceeds split between borrowed and personal capital, and what happens to your deductible balance.
Read more →Return of Capital
Why RoC retroactively changes your deductible interest and how the recalculation works.
Read more →Mixed HELOC use
When personal spending hits your investment credit line and how the CRA proportional repayment rule applies.
Read more →Interest capitalization
Paying interest by borrowing more — how deductible and non-deductible character carries forward.
Read more →Calculations
Reports & tax forms
The records leveraged investors need at tax time — and the form that gets your deduction back sooner.
Audit-ready deductible-interest record
Why a single deductible total isn't enough, and what it takes to explain every year's interest event by event if the CRA asks.
Read more →Adjusted cost base (ACB)
What ACB is, why it moves, and the extra layer leverage adds — tracking the borrowed portion of your cost base.
Read more →Form T1213
Reduce tax at source so your deductible interest lifts monthly cash flow — and why the request needs a credible projection.
Read more →Event reference
Field-by-field guides for each event type — what to enter and what changes.
Balances
Credit account balances
Deductible vs. non-deductible debt breakdown — invested principal, capitalized interest, and outstanding interest.
Read more →Brokerage balances
Borrowed vs. personal cash, holdings tracking, and how cost bases are split.
Read more →Brokerage margin
How margin debt is tracked, when incoming cash repays it first, and how margin interest is handled.
Read more →