Intermediate
Quarterly estimated tax calculator and safe harbor check
Calculates estimated tax payments and checks safe harbor thresholds using your data. Useful for both corporate and individual estimated tax planning.
Calculate quarterly estimated tax payments for {taxpayer_name} for {tax_year}.
Inputs:
- Prior year tax liability: {prior_year_tax}
- Current year projected taxable income: {projected_taxable_income}
- Withholding and credits: {withholding_credits}
- Safe harbor rules applicable: {safe_harbor_rules}
- Payments already made: {payments_made}
Output:
1) Estimated tax computation by quarter with due dates (assume standard schedule unless provided).
2) Safe harbor analysis and whether additional payments are recommended.
3) Sensitivity to income changes (±{sensitivity_pct}%).
4) Documentation notes and assumptions.
Flag jurisdiction-specific uncertainties.Related Prompts
Tax
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Creates a corporate tax return workplan and a targeted data request list tied to key schedules. Useful for tax seniors coordinating compliance and ensuring completeness.
GPT-5.2 Thinking; GPT-4.1; o3-mini
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2
Tax
IntermediateBook-to-tax reconciliation (M-1/M-3 style) with JE suggestions
Builds a book-to-tax reconciliation and identifies permanent/temporary differences with documentation notes. Useful for tax provision and return preparation.
GPT-5.2 Thinking; GPT-4.1; o3-mini
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Compares book depreciation to tax depreciation, identifies differences, and prepares supporting schedules. Useful for both compliance and provision teams.
GPT-5.2 Thinking; GPT-4.1; o3-mini
0
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2