Safe Harbor Estimated Tax Calculator
Estimate your federal annual estimated-tax payment target, compare safe harbor methods, and review what you've already paid.
Include only applicable federal income-tax payments. Payments made late may not eliminate penalties for earlier periods.
The 90% test uses actual current-year tax. An estimate may change before filing.
Results
Prepared . This is not a tax return or an IRS payment voucher.
| Tax year | |
| Filing status | |
| Prior-year AGI | |
| Prior-year total tax | |
| Prior-year method target | |
| Current-year 90% target | |
| Method used | |
| Payments entered | |
| Illustrative equal annual installment (target ÷ 4) |
Important: Remaining annual target is not necessarily the amount due at the next deadline. The equal installment shown is an illustration based on the full-year target, not a catch-up payment schedule. Penalties may apply for earlier underpayments even if the annual total is met later. Confirm due dates, withholding treatment, prior-year eligibility, and any annualized-income exception before paying.
Let's turn your numbers into a plan.
Safe harbor is a starting point. Book a paid, one-hour Tax Advisory Consultation to discuss your situation and the support that fits your goals.
You'll receive our recommendation, why we recommend it, and a quote for Nirvana to implement it. Your consultation fee will be applied toward a future service if you decide to move forward.
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© Nirvana Tax Advisory. Inclusive, judgment-free tax education. Your entries are calculated in your browser and are not submitted to Nirvana by this tool.