1040-US: Safe Harbor rules for estimated tax payments

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The estimated tax Safe Harbor rule is based on 110 percent of the tax shown on the client's tax return. This applies to taxpayers with adjusted gross income greater than $150,000 or $75,000 if married filing separately. The tax application calculates this amount automatically when you are using estimate option 1, 3, or 7 in the Estimates - Calculated section in Screen Est. The Safe Harbor rule does not apply to 1040-SS or 1040-PR filers.

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