ESTIMATED TAXES
Quarterly Estimated Tax Guide for Individuals and Business Owners
Learn when estimated-tax payments may be needed, what records support a calculation, and why payments should be revisited after income changes.
5 min read
Read guide ESTIMATED-TAX GUIDES
Estimated-tax guides for quarterly payments and safe-harbor planning
Estimated taxes can matter when withholding does not keep pace with self-employment income, business profit, investment income, rental activity, or another midyear change. These guides explain the federal framework and the records needed for a useful projection.
Start with the quarterly-payment guide for the overall process, then use the safe-harbor or missed-payment guide for a more specific question. State rules and due dates can differ, and the final payment plan depends on your complete tax picture.
PRIORITIZED READING PATH
Start with the estimated-tax question you need to solve
The guides are ordered from the general quarterly-payment process to common payment and planning issues.
ESTIMATED TAXES
Estimated Tax Safe Harbor and Underpayment Penalties
Learn how the federal estimated-tax safe-harbor framework works, why payment timing matters, and when an uneven-income calculation may help.
6 min readRead guideESTIMATED TAXES
Missed an Estimated Tax Payment? What to Do Next
Missed a 2026 estimated tax payment? Learn how timing, catch-up payments, withholding, Form 2210, and annualized income affect next steps.
9 min readRead guideESTIMATED TAXES
2026 New York Estimated Tax Payments: IT-2105 Dates and Rules
See 2026 New York estimated tax due dates, the general $300 threshold, Form IT-2105, payment methods, and when a changing income picture calls for a new projection.
8 min readRead guideESTIMATED TAXES
2026 New Jersey Estimated Tax Payments: NJ-1040-ES Guide
See 2026 New Jersey estimated tax due dates, the general $400 threshold, Form NJ-1040-ES, payment methods, and when income changes require a new estimate.
8 min readRead guideESTIMATED TAXES
Estimated Taxes for S Corporation Owners: Shareholder vs. Business Payments
Learn how S corporation owners coordinate Form 1040-ES, W-2 withholding, Schedule K-1 income, distributions, entity-level tax, state payments, and quarterly estimates.
9 min readRead guideTAX PLANNING
Year-End Tax-Planning Checklist
A year-end checklist for reviewing income, withholding, estimated payments, business and rental records, major transactions, and filing readiness.
6 min readRead guide
HOW TO USE THESE GUIDES
Use the articles to organize the facts—not to guess at the result
Each guide provides general information, a direct answer, publication and update dates, an identified author, and links to primary sources where appropriate.
Tax outcomes depend on the full facts and current law. Do not send Social Security numbers, tax forms, account numbers, or other sensitive records through the public contact form.
ESTIMATED-TAX PLANNING
Need a projection based on your actual income and payments?
Tavella CPA Group can review projected income, withholding, confirmed payments, timing, and applicable states within an agreed scope. Pricing is confirmed before work begins.