Free IRS Tax Tools & Calculators | Neil Jesani Tax Resolution

Free IRS Tax Tools & CalculatorsUse our free, no-login-required IRS tax tools to understand your tax situation. Offer in Compromise Calculator: estimate what the IRS might accept to settle your tax debt using the official RCP formula. IRS Penalty & Interest Calculator: calculate failure-to-file penalties, failure-to-pay penalties, and daily compounding interest. IRS Notice Decoder: look up any IRS notice or letter to understand what it means, your deadline, and what steps to take. Built by 70+ tax professionals including tax professionals, CPAs, and Enrolled Agents at Neil Jesani Tax Resolution. Call (800) 758-3255 for professional help.Home | Services | IRS Audit Defense | IRS Appeals | Tax Dispute Resolution | IRS Collections Defense | Penalty Abatement | Offer in Compromise | Innocent Spouse Relief | Crypto Tax Audit Defense | Offshore Account Disclosure & FBAR Defense | Unfiled Tax Returns Resolution | IRS Revenue Officer Defense | Estate & Gift Tax Dispute Resolution | State Tax Controversy & Residency Disputes | Real Estate Professional Tax Audit Defense | Blog | What Is Tax Resolution? The Ultimate Guide to Resolving IRS Tax Disputes | IRS Collections Defense: How to Stop Levies, Liens, and Seizures | Tax Fraud & tax compliance guidance: Complete Guide | Complete Guide to IRS Tax Debt Resolution Options | IRS Audit Defense: How to Fight the IRS and Win | What to Do When You Receive an IRS Audit Notice | Understanding IRS Appeals: Your Rights and Options | How to Request Penalty Abatement from the IRS | Offer in Compromise: Is It Right for You? | IRS Audit Defense: Complete Guide for High Earners | IRS Appeals Process: Expert Guide for Taxpayers | US Tax Dispute Resolution: Guide for High Earners | IRS Collections Defense: Strategies for Taxpayers | IRS Penalty Abatement: First-Time, Reasonable Cause, and How to Request | IRS Offer in Compromise: Eligibility, Process, and How to Settle for Less | IRS Innocent Spouse Relief: Escaping Your Spouse's Tax Debt | IRS Letters & Notices: What They Mean and How to Act | IRS Installment Agreement: Payment Plans, Types, and How to Apply | Currently Not Collectible Status: How to Pause IRS Collections | IRS Wage Garnishment: How to Stop It and Protect Your Paycheck | IRS Bank Levy: How to Release a Frozen Account in 21 Days | IRS Tax Lien: How Federal Tax Liens Work and How to Remove Them | International Tax Disputes & Offshore Compliance Guide | Cryptocurrency Tax Audit Defense | IRS Crypto Disputes | Estate & Gift Tax Audit Defense | IRS Valuation Disputes | S-Corp Tax Controversies | Reasonable Compensation Defense | High-Net-Worth IRS Audit Defense | Wealth Protection | How to Choose a Tax Controversy Tax professional | Expert Guide | What Triggers an IRS Audit: 15 Red Flags That Put You at Risk | The IRS Audit Process: A Step-by-Step Timeline from Notice to Resolution | IRS Audit Representation: Why You Need a Tax Professional, Not Just a CPA | Your Rights During an IRS Audit: The Taxpayer Bill of Rights Explained | IRS Correspondence Audit vs. Field Audit: Key Differences and How to Respond | How to Respond to an IRS Audit Letter: Deadlines, Documents, and Strategy | IRS Audit Reconsideration: How to Reopen a Closed Audit and Fight Back | High-Income IRS Audits: What HNWIs Need to Know About Wealth Squad Targeting | Partial Pay Installment Agreement: Settle Tax Debt Over Time for Less | IRS Statute of Limitations on Collections: The 10-Year Rule Explained | IRS Investigation: How CI Investigations Work and What to Expect | Voluntary Disclosure: How to Come Clean with the IRS Before They Find You | Civil vs. Tax Fraud: Key Differences, Penalties, and What Determines Your Case | IRS Summons: How to Respond, Your Rights, and When to Fight Back | Employment Tax Fraud: Trust Fund Penalties, tax exposure, and Defense Strategies | Offshore Tax Evasion: FATCA, FBAR Penalties, and How to Come Into Compliance | IRS severe tax penalties: Prison Sentences, Fines, and Collateral Consequences | Tax Fraud Red Flags: IRS Badges of Fraud and What Triggers IRS referrals | IRS Collection Due Process: Your Right to a CDP Hearing | IRS Asset Seizure: What the IRS Can and Cannot Take | Trust Fund Recovery Penalty: What Business Owners Need to Know | IRS Passport Revocation: How Tax Debt Can Ground Your Travel | IRS Collections and Bankruptcy: Can You Discharge Tax Debt? | IRS Notice CP504: What It Means and How to Respond Immediately | IRS Lien vs. Levy: Key Differences and How to Fight Both | IRS Appeals & the formal tax dispute process: The Complete Guide to Fighting IRS Decisions | IRS Notice of Deficiency (90-Day Letter): Your Right to the formal tax dispute process | IRS Appeals Conference: How to Prepare and Win Your Case | How to File a formal dispute petition: Deadlines, Forms, and Strategy | the formal tax dispute process Small Case Procedure: Disputes Under $50,000 | IRS Fast Track Settlement: Resolve Disputes Without Appeals or Court | How to Appeal IRS Audit Results: Step-by-Step Guide | the formal tax dispute process vs. District Court: Choosing the Right Forum for Your Tax Dispute | How Long Does IRS Appeals Take? Timelines, Delays, and What to Expect | Understanding IRS Notices and Letters: Complete Guide to Every IRS Communication | IRS Notice CP14: First Balance Due Notice — What It Means and How to Respond | IRS Notice CP2000: Income Discrepancy — Why the IRS Says You Owe More | IRS Notices CP501 and CP503: Collection Reminder Letters Explained | IRS Letter 525: Audit Examination Notification and How to Respond | IRS Notice LT11: Final Notice of Intent to Levy — Your Last Chance to Act | IRS Letter 3219: Statutory Notice of Deficiency Explained | IRS Notice CP523: Defaulted Installment Agreement — How to Reinstate | IRS Notices CP91 and CP298: Social Security Levy and Federal Payment Levy | Business Tax Disputes: Complete Guide to IRS Business Audits and Controversies | Partnership Audit Rules: The BBA and Centralized Partnership Audit Regime | IRS Worker Classification: 1099 vs W-2 Disputes and How to Defend | Payroll Tax Disputes: How to Resolve 941 Penalties and Trust Fund Issues | IRS Business Income Reconstruction: Methods, Defenses, and Strategies | Corporate Officer Tax Liability: When Business Owners Become Personally Liable | IRS Audit of Business Deductions: Defending Expenses, Travel, and Meals | ERC Audit and Clawback Defense: Protecting Your Employee Retention Credit | IRS Independent Contractor Audit: Section 530 Relief and Defense Strategies | International Tax Compliance & Offshore Account Defense: Complete Guide | FBAR Filing Requirements and Penalties: What You Need to Know About FinCEN 114 | FATCA Compliance: Reporting Requirements for US Persons with Foreign Assets | IRS Streamlined Filing Compliance Procedures: Catch Up Without tax exposure | Foreign Trust Reporting: Form 3520 and 3520-A Requirements and Penalties | Expatriate Tax: Exit Tax, FBAR, and Tax Obligations for Americans Abroad | PFIC Tax Rules: Passive Foreign Investment Company Compliance and Reporting | Transfer Pricing Disputes: IRS Enforcement and How to Defend Your Positions | Unreported Foreign Income: IRS Enforcement, Penalties, and Defense Options | IRS Payment Plan: The Complete Guide for 2026 | How to Set Up an IRS Payment Plan (Step-by-Step) | IRS Fresh Start Program: Complete Guide for 2026 | How Long Does the IRS Have to Audit You? Statute of Limitations Explained | How to Read Your IRS Tax Transcript: Line-by-Line Guide | What Happens If You Can't Pay Your Taxes? Options Explained | IRS Hardship: How to Prove Financial Hardship to the IRS | OBBBA Tax Changes 2026: What the One Big Beautiful Bill Act Means for Your Taxes | 10 Critical Mistakes to Avoid During an IRS Audit: A High-Stakes Survival Guide | IRS Attorney Near Me: Why Expertise Trumps Proximity in High-Stakes Tax Disputes | New York State Tax Audit Attorney: Defending High-Stakes Residency and Business Disputes | Statute of Limitations on IRS Audit: A Strategic Guide for High-Stakes Taxpayers | How to Prepare for a Business Tax Audit: A Strategic Defense Guide for 2026 | Our Team | Case Results | Contact Us | Fort Lauderdale Office | Las Vegas Office | Free Tax Tools | OIC Calculator | Penalty Calculator | CSED Calculator | IRS Notice Decoder | FAQ | About | Privacy Policy | Terms of Use