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Lines 638 and 639 - General tax reduction

Federal Lines 638 and 639 - General tax reduction

Calculate this reduction on page 5.

If you were a CCPC throughout the tax year, enter the amount on line 638.

If you were a corporation other than a CCPC, an investment corporation, a mortgage investment corporation, a mutual fund corporation, or a corporation that has income that is not subject to the corporation tax rate of 38% enter the amount on line 639.

See "General tax reduction" on page 79 for details.

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