What Webull provides
Webull Canada provides account statements and tax documents through its mobile app and web platform, with transaction history available for download. For non-registered accounts you’ll generally receive a T5008 covering your dispositions, along with T3 and T5 slips for distributions and dividends. Trades inside a TFSA or RRSP aren’t reported and aren’t taxable.
Why the cost base may be incomplete
Like every broker, Webull can only compute cost base from activity it sees in your Webull accounts. If you transferred shares in, hold the same security at another broker, reinvested distributions, or received equity-comp shares, its cost figure can be partial or blank — while the proceeds are usually reliable.
A Webull detail worth knowing
Webull is commission-free for equity trades, which encourages more frequent trading — every sell in a non-registered account is a taxable disposition. The high trade volume can make year-end ACB reconciliation more complex if you're not tracking as you go.
Getting your data into shape
Export your Webull activity (transactions and slips), then build a pooled cost base across all your accounts and brokers — applying reinvested distributions, return of capital, FX on US trades, and any corporate actions. That reconciled ACB, not the raw slip, is what belongs on your Schedule 3.