The Internal Revenue Service said Friday it would restart issuing its 500 series of balance-due notices to taxpayers later this month after they were paused on May 9 due to the COVID-19 pandemic.
While the IRS continued to issue most of its notices, the 500 series was temporarily suspended because of a backlog of mail that built up at the IRS while many employees were away from agency facilities due to COVID-19. The IRS came under fire earlier this year for issuing balance due notices with the incorrect dates to taxpayers during the pandemic and agreed to stop sending the notices until it caught up with its backlog of unopened mail (see story).
Patrick Bermingham is CEO of Adflex.
With Forrester since July 2005, Diego primarily contributes to and advises on Forrester's offerings for Application Development & Delivery Professionals. He partners with Forrester's global application leaders and is a leading expert on SDLC processes and practices, covering topics such as Agile development, Agile and Lean transformations, Agile development sourcing strategies and services, Agile testing practices and tools, DevOps, and software testing and quality, with a key focus on systems of engagement. Diego also covers software delivery metrics, artificial intelligence, and open source governance.
His 28 years of industry experience, in addition to application development, allow him to give expert advice on change management programs for optimizing the overall modern application delivery process, execute technology management assessments, review technology management strategies, and make comparisons. He also has experience in complex mission-critical project and client engagement management.
Previous Work Experience
Prior to joining Forrester, Diego held international management positions covering various roles, such as director consultant at Meta Group and head of Agile product development for advanced reuse methods and technologies at Quartersoft. He was also regional VP and director for consulting at Genesis/Iona, where he helped many clients transition to distributed applications. He also worked as an enterprise architect and project/product manager, participating in various pan-European projects. He started out as a software engineer, developing AI tools and early graphical user interface technologies at Olivetti.
Diego has also been very active in global open software standards consortia such as OMG, contributing to the early specifications of middleware standards such as CORBA and model-driven architecture. He has been a frequent speaker and panelist at many European conferences on software development.
Diego has published various research reports on open source, software reuse, semantic Web, and object technology, including the AI book Practical Experience in Building Expert Systems.
Education
Diego received a master's degree in computer science from Pisa University in Italy, and he specialized in artificial intelligence through on-site courses at Stanford University and SRI Palo Alto during a two-year working internship with Olivetti in the US.
The IRS said Friday that it has now caught up enough with its mail backlog to account for payments that are mailed on a timely basis. Some taxpayers will start seeing updated 500 series notices with current issuance and payment dates in late October or early November.
The 500 series of balance due notices includes three different types of notices that warn taxpayers about different stages of nonpayment: the CP501, the CP503 and the CP504.

The CP501 notice tells taxpayers they still have a balance due and what their options are, while the CP503 lets them know the IRS hasn’t heard from them yet and they may be subject to a tax lien if they don’t pay their taxes. The CP504 alerts taxpayers they need to pay their balances immediately or face the possibility of a levy of their state income tax refunds. The 500 series of notices are typically sent to taxpayers if they don’t respond to or pay their initial notice and demand on the CP14 letter.
Despite the resumption of the notices, the IRS is still in the process of catching up on millions of pieces of unopened mail, prompting a letter this week from Democrats on the House Ways and Means Oversight Subcommittee asking if the IRS will be ready in time for next tax season (see story). They also asked the IRS this week about why it was sending out notices revoking the tax-exempt status of over 30,000 nonprofits despite an extension it was supposed to have granted them for filing the Form 990 during the pandemic while it’s in the midst of processing the backlog of unopened correspondence. Earlier this month, IRS Commissioner Chuck Rettig told another House oversight subcommittee that the IRS was still processing 5.3 unopened million pieces of mail, including 2.5 million paper tax returns.
The IRS is encouraging taxpayers who can’t pay to consider some of the available payment options while penalties and interest continue to accrue.
The IRS noted that taxpayers who were affected by the pandemic or other circumstances may qualify for relief from penalties due to reasonable cause if they’ve made an effort to comply with the requirements of the law, but couldn’t meet their tax obligations, due to facts and circumstances beyond their control. Taxpayers should call the toll-free number listed on their notice to ask for penalty relief due to reasonable cause if they believe they qualify and have the supporting documentation to prove it. More information on reasonable cause relief can be found on a page at IRS.gov. Payment options and extra information can also be found on another page of IRS.gov.
