Holding company tax services: the return that decides how the group pays itself

Part IV tax and RDTOH are the mechanics behind every dividend decision

When a holdco receives certain dividends — typically portfolio dividends from public companies, or dividends from a connected company that itself got a dividend refund — it pays a refundable Part IV tax, which builds a balance in RDTOH. That balance is not dead money: paying a taxable dividend out to you personally triggers a partial refund of it, at a rate fixed by the Income Tax Act. Get the sequencing wrong — pay a dividend before you needed to, or delay one past a year-end that would have refunded more — and the group pays real cash it did not have to.

Two RDTOH pools exist since the 2018 reforms, one fed by investment income and one by dividends received from other corporations, and each refunds against a different type of dividend paid out. We track both separately so the timing of every dividend decision is made with the refund math already done, not guessed at after the fact.

The passive-income grind ties the holdco directly to the operating company's tax bill

A CCPC group's access to the small business deduction — roughly 12.2% on the first $500,000 of active income in Ontario, against the general corporate rate on everything above — shrinks once the group's combined adjusted aggregate investment income passes $50,000 in the prior year, and disappears entirely at $150,000. That test applies across all associated corporations together, so a holdco quietly building a large investment portfolio can grind down the operating company's preferential rate even though the two returns look unrelated on paper. Read the mechanics on how passive income reduces the small business deduction — the reason a holdco's own investment strategy is never purely a holdco-level decision.

GRIP and eligible dividends: designation matters as much as amount

Income taxed at the general corporate rate — rather than the small business rate — builds a general rate income pool (GRIP) that lets the corporation pay out eligible dividends, taxed more favourably in your hands than the ordinary kind. When Opco pays an eligible dividend up to a holdco, the designation has to be preserved and re-designated correctly as the holdco passes it along to you; the difference between an eligible and a non-eligible dividend on the way out is worth real after-tax dollars, and it is decided on the T2 designation, not on how the cash actually moved. See the comparison on eligible versus non-eligible dividends.

The capital dividend account works the same way but needs its own paperwork: the non-taxable portion of a capital gain is genuinely tax-free when paid out, but only once a T2054 election is filed with CRA on or before the day the dividend becomes payable. File it late, or pay out more than the account actually supports because the underlying ACB schedule was wrong, and CRA can assess a heavy penalty tax on the excess — we reconcile the balance before the election goes in, not after a cheque has already gone out.

Filing two T2s is a real cost — we plan around it, not just for it

The honest answer for a lot of owners is that the two-T2 cost is worth paying once the operating company is throwing off more cash than the owner needs personally — before that point, a single corporation is often simpler and just as effective.

Cross-border holdings change the return, not just the plan

A holdco holding US securities, a US LLC interest, or facing a US-citizen shareholder brings T1135, potential FAPI inclusions, and US filing questions into the same T2 season. That side of the return is covered in depth on our holdco cross-border tax page; the standing corporate tax service behind everything above is on our tax services page.