There is a threshold level of income which is completely free of income tax.

完全不用支付所得税有一个基准。

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The expenses or property arising from the use of the tax-free income of an enterprise shall not be deducted and may not be depreciated or amortized.

企业的不征税收入用于支出所形成的费用或者财产，不得扣除或者计算对应的折旧、摊销扣除。

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The kicker is that earnings and withdrawals are supposed to be free of income tax.

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If you want, you can leave the whole Roth to your heirs free of income tax.

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This winter Ace's U.S.-based competitors raised a stink about a tax rule that enables a corporate parent in Bermuda to import premiums free of corporate income tax by reinsuring some policies sold by its American subsidiary.

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