Decision centre
Investment Tax Slips & ACB Centre
A slip reports what an issuer knows. Your return still needs the right income category, cost base and capital-loss treatment.
T5 investment income
Interest, Canadian dividends, foreign income and foreign tax paid.
Open this tool → Trust slipT3 trust income
Mutual-fund and trust allocations, including capital gains and ACB adjustments.
Open this tool → Disposition slipT5008 securities transactions
Match proceeds with the ACB your broker may not have calculated correctly.
Open this tool → CalculatorT5008 ACB reconciliation
Replace uncertain Box 20 cost with verified pooled ACB and selling costs.
Open this tool → CalculatorAdjusted cost base
Build the cost pool from purchases, commissions, sales and return of capital.
Open this tool → CalculatorCapital loss carryback
Compare the previous three years and estimate the refund opportunity.
Open this tool →How to use this group
Start with the slip that arrived, then move to ACB reconciliation when securities were sold. T3 slips often arrive later than T5 and T5008 slips, so wait for the complete package before filing.
Tax software can import CRA data, but it cannot reconstruct missing adjusted cost base reliably from a broker field that CRA itself says may be incomplete.
Frequently asked questions
Which investment tax slip do I need?
A T5 reports interest and dividends paid directly by a bank or corporation. A T3 reports mutual fund and trust allocations, including capital gains and return of capital. A T5008 reports the proceeds of a security you sold or redeemed during the year — it does not always show a reliable cost base.
Why does my T5008 not show my full cost base?
Brokers are only required to report the adjusted cost base (ACB) they have on file, which can be missing transfers-in, reinvested distributions or corporate actions from before the account moved firms. Reconcile it with the ACB calculator before relying on Box 20.
Do I need to wait for a T3 before filing?
Usually yes if you hold mutual funds or ETFs in a non-registered account — T3 slips are issued later than T5 and T5008 slips because trusts need time to finalize allocations. Filing before it arrives risks a reassessment once CRA matches the slip.
Can I use a capital loss from one T5008 disposition against other investment income?
No — capital losses only offset capital gains (current year, carried back three years, or carried forward indefinitely), not interest or dividend income reported on a T5 or T3.