By OptiVal Editorial Desk

GRIP Explained: The General Rate Income Pool for Incorporated Owners

If you own a Canadian-controlled private corporation, the general rate income pool decides whether a dividend you pay yourself can be taxed as an eligible dividend or has to go out as a non-eligible one. That one label changes your personal tax bill by thousands of dollars on a large dividend, yet many owners have never seen their pool balance. This guide explains what the pool is, how it grows and shrinks, and the designation mistake that triggers a penalty tax.

What the general rate income pool actually is

The general rate income pool, usually shortened to GRIP, is a notional tax account tracked on Schedule 53 of the T2 return. It is not a bank account and it holds no cash. It is a running tally of corporate income that was taxed at the general corporate rate, meaning income that did not get the small business deduction or another special low rate.

The logic is integration. Income taxed inside the corporation at the higher general rate has already carried a heavier corporate tax load, so when it is paid out, the shareholder gets a larger dividend tax credit. A Canadian-controlled private corporation (CCPC) can designate a dividend as eligible only up to its GRIP balance at the end of the year the dividend is paid. Designate more than the balance and the excess becomes a problem, covered below. Corporations that are not CCPCs work the other way around: they can generally pay eligible dividends in any amount unless they carry a low rate income pool (LRIP). Most owner-managed companies are CCPCs, so this guide stays with GRIP.

Why the eligible label is worth real money

Eligible and non-eligible dividends are grossed up at different rates on your personal return. An eligible dividend is grossed up by 38 percent, then offset by a larger dividend tax credit. A non-eligible dividend is grossed up by 15 percent, with a smaller credit.

In Ontario in 2026, the top marginal rate on eligible dividends is about 39.34 percent, compared with about 47.74 percent on non-eligible dividends. On a $100,000 dividend at the top bracket, that gap is roughly $8,400 of personal tax. At lower brackets the gap narrows, and a non-eligible dividend can sometimes cost less overall once the lower corporate tax is counted. Eligible is not always better. You just cannot choose the label freely. GRIP decides how much room you have.

How GRIP grows: the 72 percent rule

Each year, Schedule 53 adds to GRIP an amount equal to 72 percent of the corporation income that was taxed at the general rate. The 72 percent is the general rate factor. It roughly represents what is left of a dollar of general-rate income after corporate tax.

The calculation starts with taxable income, then subtracts two things: the income that claimed the small business deduction, and, for a CCPC, its aggregate investment income. What remains is general-rate income. Multiply that remainder by 72 percent and you have the main annual addition.

GRIP also grows dollar for dollar when the corporation receives an eligible dividend from another Canadian corporation, and it carries forward from year to year, so a balance built up in a strong year stays available until you use it.

Here is a simple example, for illustration only. A CCPC has $700,000 of taxable income. The first $500,000 claimed the small business deduction and there is no investment income, so general-rate income is $200,000. The GRIP addition is 72 percent of $200,000, which is $144,000. With a $30,000 opening balance and no eligible dividends paid the year before, the corporation can designate up to $174,000 of dividends as eligible this year, subject to the year-end test below.

How GRIP shrinks, and the year-end timing trap

GRIP goes down by the eligible dividends the corporation paid in the previous tax year. That one-year lag surprises people. The balance you see on this year Schedule 53 already reflects last year payments, and this year payments will reduce next year calculation.

The test that matters is the balance at the end of the taxation year in which you pay the dividend. A dividend paid in March can still be designated as eligible if income earned later in the same year brings the year-end GRIP high enough to cover it. The reverse is also true: a dividend that looked safe in March can become excessive if year-end income disappoints and GRIP lands lower than expected. Owners who pay a large eligible dividend early in the year are, in effect, betting on the rest of the year.

Investment income does not build GRIP. Interest, rent and portfolio income inside a CCPC are handled through the refundable tax system instead. If that side of the system is new to you, read our guide to RDTOH and the dividend refund, and our explainer on passive investment income and the small business deduction. Capital gains have their own tax-free exit route through the capital dividend account, covered in our capital dividend account guide.

Designating a dividend properly

A dividend is not eligible just because GRIP room exists. The corporation has to designate it as eligible, in writing, and notify each shareholder no later than the day the dividend is paid. In practice this is done through the directors resolution that declares the dividend and through the T5 reporting, which shows the amount as an eligible dividend.

Keep the paperwork consistent. The resolution, the T5 slips and Schedule 53 should all tell the same story. A mismatch, such as a T5 reporting an eligible dividend the resolution never designated, creates a large cleanup job later.

The excessive designation penalty

If a CCPC designates more than its year-end GRIP allows, the excess is an excessive eligible dividend designation. Schedule 55 calculates a Part III.1 tax of 20 percent of the excess for a CCPC. On a $50,000 over-designation, that is a $10,000 penalty tax, payable even though the shareholders also lose the eligible treatment they were promised.

There is a repair mechanism. The corporation can elect, with the agreement of the affected shareholders, to treat the excess as an ordinary non-eligible dividend instead of paying the penalty. The election has conditions and a deadline, and shareholders must fix their personal returns to match. It works, but checking the projected year-end GRIP before declaring the dividend is far cheaper.

A practical routine for owner-managers

First, ask for your GRIP balance every year when the T2 is filed, and keep a one-line history alongside your capital dividend account and refundable tax balances. Together, these three balances decide how you can pay yourself tax-efficiently.

Second, before any large dividend, project the year-end GRIP. Include the income you still expect to earn, subtract the small business portion and any investment income, and apply the 72 percent factor.

Third, split deliberately when room is tight. Part of a distribution can go out as an eligible dividend up to GRIP and the rest as non-eligible, as long as each designation is documented. Owners who track the balance can time large eligible dividends for years when the room, and their personal bracket, line up best.

Want more plain-English guides? Browse the Learn hub for more incorporated-owner explainers.

This article is general information for educational purposes. It is not financial advice and does not recommend any specific investment. Consider speaking with a licensed professional about your own situation.