Fourth Quarter 2025 IRS Interest Rates on Overpayment & Underpayment of Tax

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On August 25, 2025, the IRS announced that the Fourth Quarter 2025 IRS interest rates on overpayment and underpayment of tax will remain the same as in the Fourth Quarter of 2025.

This means that, the Fourth Quarter 2025 IRS interest rates will be as follows:

seven (7) percent for overpayments (seven (7) percent in the case of a corporation);

seven (7) percent for underpayments;

nine (9) percent for large corporate underpayments; and

five (5) percent for the portion of corporate overpayment exceeding $10,000.

How the IRS Calculated Fourth Quarter 2025 IRS Interest Rates

The IRS calculates the IRS interest rates based on specific tax provisions. We begin with the Internal Revenue Code (“IRC”) §6621, which establishes the IRS interest rates on overpayments and underpayments of tax. Under §6621(a)(1), the overpayment rate is the sum of the federal short-term rate plus 3 percentage points for individuals and 2 percentage points in cases of a corporation. There is an exception to this rule: with respect to a corporate overpayment of tax exceeding $10,000 for a taxable period of time, the rate is the sum of the federal short-term rate plus one-half of a percentage point.

Additionally, under §6621(a)(2), the underpayment rate is the sum of the federal short-term rate plus 3 percentage points. Similarly to overpayments, there is an exception for a large corporate underpayment: in such cases, §6621(c) requires the underpayment rate to be the sum of the relevant federal short-term rate plus 5 percentage points. Also, the readers should see §6621(c) and §301.6621-3 of the Regulations on Procedure and Administration for the definition of a large corporate underpayment and for the rules for determining the applicable date.

Finally, pursuant to the IRC §6621(b)(1), the IRS computed the Fourth Quarter 2025 IRS interest rates based on federal short-term rates in July of 2025.

Importance of the Fourth Quarter 2025 IRS Interest Rates

The IRS interest rates are relevant for a great variety of purposes. Let’s highlight three of its most important uses. Firstly, these rates will determine the interest a taxpayer will get on any IRS refunds.

Second, the IRS and the taxpayers use these rates to calculate the interest on any additional US tax liability on amended or audited tax returns. This also applies to the amended (and, in case of SFOP, original) tax returns that the taxpayers submit pursuant to Streamlined Domestic Offshore Procedures and Streamlined Foreign Offshore Procedures.

Finally, the Fourth Quarter 2025 IRS interest rates will be used to calculate PFIC interest on any relevant §1291 PFIC tax. This PFIC interest will be reported on the relevant Form 8621 and ultimately Form 1040.

We at Sherayzen Law Office constantly deal with the IRS interest rates on overpayments and underpayments of tax. This is why we closely follow any changes in these IRS interest rates, including the Fourth Quarter 2025 IRS interest rates.

2025 SDOP Audit | Streamlined Domestic Offshore Procedures Lawyer

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Every submission under the Streamlined Domestic Offshore Procedures (SDOP) may be subject to an IRS audit, including the submissions made in 2025. In this article, I will explain what is the 2025 SDOP Audi and what a taxpayer should expect during the Audit.

2025 SDOP Audit: Background Information on Streamlined Domestic Offshore Procedures

Streamlined Domestic Offshore Procedures is a voluntary disclosure option offered by the IRS since June of 2014 to noncompliant US taxpayers to settle their past tax noncompliance concerning foreign assets and foreign income at a reduced penalty rate. In order to participate in SDOP, a taxpayer must meet various eligibility requirements. The most important of these eligibility requirements is non-willfulness of prior noncompliance.

SDOP is likely to be the most convenient and the least expensive voluntary disclosure option for taxpayers who is not eligible for Streamlined Foreign Offshore Procedures and whose prior tax noncompliance was non-willful. 

2025 SDOP Audit: Why SDOP Disclosures Are Subject to IRS Audits

SDOP audits originate within the very nature of SDOP. SDOP voluntary disclosures have certain eligibility requirements.  Once taxpayers submit their disclosures, the IRS does not immediately subject them to an immediate comprehensive review of whether the disclosures met all eligibility requirements.  There is a review process, but initially it focuses on whether the taxpayers met all formalities of the SDOP.

This is very different from the immediate comprehensive audit-like review of all items as part of the voluntary disclosure process that form part of some other programs, such as prior OVDPs (Offshore Voluntary Disclosure Program) or even current IRS Voluntary Disclosure Practice (VDP). These voluntary disclosure options usually also require the signing of Form 906, the Closing Agreement. SDOP does not have that final stage of signing Form 906.

This means that, if a suspicion arises concerning whether a taxpayer met the SDOP eligibility requirements, the only way for the IRS to resolve it is to audit the entire disclosure, particularly on the issue of non-willfulness. As part of the SDOP process, the IRS reserves the right to audit any SDOP submission  at any point within three years after the submission of the original SDOP voluntary disclosure package.

2025 SDOP Audit Process: Initial Contact

The exact process of a Streamlined Submission Audit varies from case to case, but all of such audits have a similar format: initial letter with request for a meeting, meeting with an interview, review of submitted documents and (very likely) additional requests for information, potentially interview of other involved individuals (such as a tax preparer) and, finally, the results of an audit are provided by the IRS to taxpayer(s) and/or the representative indicated on Form 2848.

In other words, your 2025 SDOP Audit would commence in a way very similar to a regular IRS audit: the IRS sends letter to taxpayers and (if there is a Form 2848 on file) to their representatives. The letter explains that the IRS decided to examine certain tax returns (usually all three years of amended tax returns) and asks for submission of all documentation and work papers that the taxpayer or the tax preparer used to prepare the amended returns. Additionally, the letter requests that the taxpayers’ representative (or taxpayers if not represented) contact the IRS agent in charge of the audit to schedule the initial meeting.

2025 SDOP Audit Process: Interview and Follow-up

During the initial meeting, the IRS agent will review (at least to make sure he or she has what the IRS needs) the documents that the taxpayer supplied earlier in response to the IRS requests. In larger cases, the IRS agent will need a lot more time to later examine all of the submitted documents and see if he or she needs additional documents. If a case is very small, it is possible for an agent to cover everything in the first meeting, but it is very rare.

Also, during an initial meeting, there is going to be an interview with the taxpayer(s). I will discuss the interview separately in a different article.

Once the review of the initial package of documents is concluded, it is very likely that the IRS agent will have questions and additional document requests. The questions may be answered by the taxpayers’ attorney during a separate meeting with the agent; smaller questions may be settled over the phone.

If the IRS needs additional documentation, the agent will send out an additional request to taxpayers and/or their attorney. The answer will most likely need to be provided in writing (actually, it is often better to state your position in writing for the IRS Appeals Office).

Once the IRS completes its interview of other involved parties and reviews all evidence, it will make its decision and submit the results of the audit to the taxpayers and their tax attorney in writing. The taxpayers’ attorney will need to build a strategy with respect to the taxpayers’ response to the audit results depending on whether the taxpayers agree or disagree with the results of the audit.

Differences Between Your 2025 SDOP Audit and Regular IRS Audit

At first, it may seem that there are no big differences between a regular IRS audit and an SDOP audit. While procedurally this may be correct, substantively it is not.

The greatest difference between the two types of IRS audits is the subject-matter of what the IRS subjects to its review. While a regular IRS audit will concentrate on the tax returns only, a Streamlined Submission Audit will involve everything: amended tax returns, FBARs, other information returns and, most importantly, Non-Willfulness Certification. In other words, a Streamlined Submission Audit will focus not only on whether the tax forms are correct, but also on whether the taxpayer was actually non-willful with respect to his prior tax noncompliance.

This difference in the subject-matter examination will carry over to other aspects of a Streamlined Submission Audit: the taxpayers’ interview will focus on their non-willfulness arguments, third-party interviews of original tax preparers become a regular feature (this may be different from a regular IRS audit), and the final IRS results must necessarily make a decision on whether to challenge the taxpayers’ non-willfulness arguments.

Failure by a taxpayer to sustain his non-willfulness arguments may result in a disaster for the taxpayer with a potential referral to the Tax Division of the US Department of Justice for a criminal investigation.

This is why it is so important for a taxpayer subject to an SDOP Audit to retain the services of an experienced international tax lawyer to handle the audit professionally.

Contact Sherayzen Law Office for Professional Help with Your 2025 SDOP Audit

If the IRS audited your submission under the Streamlined Domestic Offshore Procedures, contact Sherayzen Law Office as soon as possible. Our international tax law firm is highly experienced in offshore voluntary disclosures (SDOP, SFOP, “noisy disclosures”, “quiet disclosures”, et cetera) and the IRS audits of voluntary disclosures, including the audits of SDOP submissions.  We can Help You during Your IRS Audit!  Contact Us Today to Schedule Your Confidential Consultation!

Third Quarter 2025 IRS Interest Rates on Overpayment & Underpayment of Tax

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On May 12, 2025, the IRS announced that the Third Quarter 2025 IRS interest rates on overpayment and underpayment of tax will remain the same as in the Second Quarter of 2025.

This means that the Third Quarter 2025 IRS interest rates will be as follows:

seven (7) percent for overpayments (seven (7) percent in the case of a corporation);

seven (7) percent for underpayments;

nine (9) percent for large corporate underpayments; and

four and a half (4.5) percent for the portion of corporate overpayment exceeding $10,000.

How the IRS Calculated Third Quarter 2025 IRS Interest Rates

The IRS calculates the IRS interest rates based on specific tax provisions. We begin with the Internal Revenue Code (“IRC”) §6621, which establishes the IRS interest rates on overpayments and underpayments of tax. Under §6621(a)(1), the overpayment rate is the sum of the federal short-term rate plus 3 percentage points for individuals and 2 percentage points in cases of a corporation. There is an exception to this rule: with respect to a corporate overpayment of tax exceeding $10,000 for a taxable period of time, the rate is the sum of the federal short-term rate plus one-half of a percentage point.

Additionally, under §6621(a)(2), the underpayment rate is the sum of the federal short-term rate plus 3 percentage points. Similarly to overpayments, there is an exception for a large corporate underpayment: in such cases, §6621(c) requires the underpayment rate to be the sum of the relevant federal short-term rate plus 5 percentage points. Also, the readers should see §6621(c) and §301.6621-3 of the Regulations on Procedure and Administration for the definition of a large corporate underpayment and for the rules for determining the applicable date.

Finally, pursuant to the IRC §6621(b)(1), the IRS computed the Third Quarter 2025 IRS interest rates based on federal short-term rates in April of 2025.

Importance of the Third Quarter 2025 IRS Interest Rates

The IRS interest rates are relevant for a great variety of purposes. Let’s highlight three of its most important uses. Firstly, these rates will determine the interest a taxpayer will get on any IRS refunds.

Second, the IRS and the taxpayers use these rates to calculate the interest on any additional US tax liability on amended or audited tax returns. This also applies to the amended (and, in case of SFOP, original) tax returns that the taxpayers submit pursuant to Streamlined Domestic Offshore Procedures and Streamlined Foreign Offshore Procedures.

Finally, the Third Quarter 2025 IRS interest rates will be used to calculate PFIC interest on any relevant §1291 PFIC tax. This PFIC interest will be reported on the relevant Form 8621 and ultimately Form 1040.

We at Sherayzen Law Office constantly deal with the IRS interest rates on overpayments and underpayments of tax. This is why we closely follow any changes in these IRS interest rates, including the Third Quarter 2025 IRS interest rates.

Sherayzen Law Office Successfully Completes Its 2025 Spring Tax Season

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On April 15, 2025, Sherayzen Law Office, Ltd., successfully completed its 2025 Spring Tax Season. It was a challenging and interesting tax season. Let’s discuss it in more detail.

2025 Spring Tax Season: Sherayzen Law Office’s Annual Compliance Clients

Annual tax compliance is one of the major services offered by Sherayzen Law Office to its clients. The majority of our annual compliance clients are individuals and businesses who earlier retained our firm to help them with their offshore voluntary disclosures. They liked the quality of our services so much that they preferred our firm above all others to ensure that they stay in full compliance with US tax laws.

It is natural that this group of clients is the largest among all other groups, because the unique specialty of our firm is conducting offshore voluntary disclosures.

A smaller group of our annual compliance clients consists of tax planning clients who also asked Sherayzen Law Office to do their annual compliance for them. While the group is smaller, it is usually the one always has a complex set of US tax compliance requirements due to the size of each client.

Finally, the last group of our annual compliance clients consists of businesses and individuals who were referred to our firm specifically for help with their annual compliance. These are usually foreign businesses who just expanded to the United States and foreign executives and professionals who just arrived to the United States to start working here. An important part of this group also includes foreign students.

2025 Spring Tax Season: Sherayzen Law Office’s Annual Compliance Services

Virtually all of our clients have exposure to foreign assets and international transactions. Hence, in addition to their domestic US tax compliance, Sherayzen Law Office prepares the full array of US international tax compliance forms related to foreign accounts (FBAR and Form 8938), PFIC calculations (Forms 8621), foreign business ownership and Section 367 notices (Forms 926, 5471, 8858, 8865, et cetera), foreign trusts (Form 3520 and Form 3520-A), foreign gifts/foreign inheritance (Form 3520), foreign ownership of US businesses (Form 5472) and other relevant US international tax compliance issues.

2025 Spring Tax Season: Unique Challenges and Opportunities

The 2025 Spring Tax Season was especially challenging because of the record number of deadlines that Sherayzen Law Office had to complete. During the season, Sherayzen Law Office filed a large number of FBARs, US income tax returns and US international tax returns such as Forms 3520, 5471, 8865, 8621 and 926.  Despite a very large number of deadlines that we timely finished prior to April 15, due to the international nature of our cases, Sherayzen Law Office extended ever more deadlines.

This year we also implemented on a grander scale new spreadsheets for clients, including the 3.2 version of Account Summary and 3.1 version of Summary of Entities. We also replaced the older versions of the Schedule C and Schedule E spreadsheets with the new 2025 versions. We hope to complete the process of firm-wide usage of updated spreadsheets by the end of the fall tax season.

Looking Forward to Completing Offshore Voluntary Disclosures, Additional Tax Planning and 2025 Fall Tax Season

Having completed such a challenging 2025 Spring Tax Season, Sherayzen Law Office now looks forward to completing our outstanding offshore voluntary disclosures and IRS audits.  During the Spring of 2025, we also expanded our portfolio of international tax planning clients. Finally, we will be working on completing the extensions prior to the October 15th, 2025 deadline.

Contact Sherayzen Law Office for Professional Help with US International Tax Law, including Offshore Voluntary Disclosures

If you have foreign assets or foreign income, contact Sherayzen Law Office for professional help. Our firm specializes in US international tax compliance. We have helped hundreds of US taxpayers to bring themselves into full compliance with US tax laws, and We Can Help You! Contact Us Today to Schedule Your Confidential Consultation!

2025 FBAR Civil Penalties | FBAR International Tax Lawyer & Attorney

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This article is an update of the prior articles on the FBAR Civil Penalties. Since the US Congress mandated the IRS to adjust FBAR civil penalties for inflation on an annual basis, this article discusses the year 2025 FBAR Civil Penalties.

2025 FBAR Civil Penalties: Overview of the FBAR Penalty System

FinCEN Form 114, the Report of Foreign Bank and Financial Accounts (commonly known as “FBAR”), has always had a very complex, multi-layered system of penalties, which has grown even more complicated over the years. There are four categories of FBAR penalties: criminal, willful, non-willful and negligent.

Of course, the most dreaded penalties are FBAR criminal penalties. Not only is there a criminal fine of up to $500,000, but, in some case, a person can be sentenced to 10 years in prison for FBAR violations (and these two criminal penalties can be imposed simultaneously). Since the focus of this article is on FBAR civil penalties.

The next category of penalties are FBAR civil penalties are for a willful failure to file an FBAR. The IRS imposes these penalties in a very harsh manner per each violation – i.e. on each account per year, potentially going back six years (the FBAR statute of limitations is six years).

The third category of penalties apply to a non-willful failure to file an FBAR or a filing of an incorrect FBAR. This means that the IRS can impose these penalties on US persons who do not even know that FBAR exists.

Finally, with respect to business entities, the IRS can assess a penalty for a negligent failure to file an FBAR or a filing of an incorrect FBAR.

It is important to note that FBAR has its own reasonable cause exception. The Reasonable Cause Exception can a very important tool for fighting the assessment of any of the aforementioned civil penalties. Moreover, each of these penalty categories has numerous levels of penalty mitigation that a tax attorney may utilize to lower his client’s FBAR civil penalties.

2025 FBAR Civil Penalties: Penalties Prior to November 2 2015

Prior to November 2, 2015, the US government never adjusted FBAR penalties for inflation. Rather, the penalties stayed flat at the same levels as the Congress originally mandated them. Let’s go over each category of penalties prior to inflation adjustment.

As of November 1, 2015, Willful FBAR penalties were up to $100,000 or 50% of the highest balance of an account, whichever is greater, per violation. Again, a violation meant a failure to correctly report an account in any year. Non-willful FBAR penalties were up to $10,000 per violation per year; per US Supreme Court’s decision last year, the penalty should have been imposed on a per form (not per account) basis. Finally, FBAR penalties for negligence were up to $500 per violation; if, however, there was a pattern of negligence, the negligence penalties could increase ten times up to $50,000 per violation.

2025 FBAR Civil Penalties: Inflation Adjustment

The situation changed dramatically in 2015. As a result of the Federal Civil Penalties Inflation Adjustment Act Improvements Act of 2015 (“2015 Inflation Adjustment Act”), Congress mandated federal agents to: (1) adjust the amounts of civil monetary penalties with an initial “catch-up” adjustment; and (2) make subsequent annual adjustments for inflation. The inflation adjustment applied only to civil penalties.

The “catch-up” adjustment meant a huge increase in penalties, because the Congress now required federal agencies to update all of these penalties from the time of their enactment (or the last year the Congress adjusted the penalties) through November of 2015. This meant that, in 2015, the penalties jumped to account for all accumulated multi-year inflation. The Congress only gave one limitation this increase: the catch-up adjustment could not exceed to two and a half times of the original penalty.

Fortunately, Congress adjusted FBAR penalties in 2004 and the “catch-up” adjustment did not have to go back to the 1970s. It still meant a very large (about 25%) increase in FBAR civil penalties, but it was not as dramatic as some other federal penalties.

2025 FBAR Civil Penalties: Bifurcation of FBAR Penalty System

The biggest problem with the inflation adjustment, however, was the fact that it further complicated the already dense multi-layered FBAR system of civil penalties – FBAR penalties became dependent on the timing of a violation and IRS penalty assessment. In essence, the 2015 Inflation Adjustment Act split the FBAR penalty into two distinct parts.

The first part applies to FBAR violations that occurred on or before November 2, 2015. The old pre-2015 FBAR penalties described above applies to these violations irrespective of when the IRS actually assesses the penalties for these violations. The last FBAR violations definitely eligible for the old statutory penalties are those that were made concerning 2014 FBAR which was due on June 30, 2015. The statute of limitations for the 2014 FBAR ran out on June 30, 2021.

The second part applies to all FBAR violations that occurred after November 2, 2015. For all of these violations, the exact amount of penalties will depend on the timing of the IRS penalty assessment, not when the FBAR violation actually occurred. In other words, if an FBAR violation occurred on October 15, 2017 and the IRS assessed FBAR penalties June 17, 2021, the IRS would use the inflation-adjusted FBAR penalties as of the year 2021, not October 15, 2017.

2025 FBAR Civil Penalties: Penalties Assessed On or After January 17, 2025

Now that we understand the history of FBAR penalties, we can specifically discuss the 2025 FBAR Civil penalties. The first thing to understand is that we are talking about penalties assessed by the IRS on or after January 17, 2025; prior to that date, the 2024 FBAR civil penalties were still effective.

The 2025 Willful FBAR penalty imposed under 31 U.S.C. §5321(a)(5)(C)(i)(I) is $165,353 per violation. Per last year’s court decisions, the term “violation” in the context of willful FBAR penalties means on a “per account for each year” basis described above.

The 2025 Non-Willful FBAR penalty imposed under 31 U.S.C. §5321(a)(5)(B) is $16,536 per violation. The term “violation” in the context of non-willful FBAR penalties at this point has been settled to mean “per form” (rather than per-account) basis.

The 2025 Negligence FBAR penalty imposed under 31 U.S.C. §5321(a)(6)(A) is $1,430; if there is a pattern of negligence under 31 U.S.C. §5321(a)(6)(B), then the penalty goes up to $111,308.

Contact Sherayzen Law Office for Professional Help With Your Prior FBAR Noncompliance

Sherayzen Law Office is a leader in US international tax law and FBAR compliance. We have successfully helped hundreds of clients from over eighty countries resolve their prior FBAR noncompliance, including through various voluntary disclosure programs (such as Streamlined Domestic Offshore Procedures, Streamlined Foreign Offshore Procedures, Delinquent FBAR Submission Procedures, et cetera). We can help you! Contact Us Today to Schedule Your Confidential Consultation!