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).
Rathi Murthy is the Chief Technology Officer at Varo Bank, the first nationally chartered all-digital consumer bank in the United States. In this role, she leads the company's end-to-end technology strategy, overseeing the design and development of secure, scalable, and AI-powered digital banking platforms. Her leadership is instrumental in advancing Varo's mission to build inclusive, accessible, and real-time financial solutions for millions of consumers.
A seasoned technology executive, Rathi brings over 25 years of experience leading innovation and digital transformation at some of the world's most recognized technology and financial services companies. Prior to joining Varo, she served as Chief Technology Officer and President of Expedia Product & Technology at Expedia Group, where she modernized the company's global travel infrastructure, integrating AI-driven personalization, modular architecture, and advanced cloud capabilities across its family of brands.
Earlier, she held executive leadership roles at Verizon Media and Gap Inc., where she led enterprise cloud migrations, e-commerce platform evolution, and large-scale product delivery initiatives across global markets.
Rathi also served as Senior Vice President and Chief Information Officer of Enterprise Growth at American Express, where she was responsible for the technology strategy and operations of the Serve platform and a suite of prepaid products including Bluebird.
Rathi's early career includes engineering leadership roles at eBay, Yahoo!, Sun Microsystems, and WebMD, where she consistently delivered improvements in platform stability, operational agility, and customer experience.
In addition to her executive work, Murthy is a board member at PagerDuty, Inc., a leader in digital operations management, and serves as an External Expert Advisor to the University of San Francisco's Board of Trustees Committee on Information Technology Strategy. She is also a regular speaker at industry events and leadership forums, offering thought leadership on topics such as fintech innovation, integrating AI, platform transformation, and executive technology leadership.
Guy Baker, CFP, Ph.D., is the founder of Wealth Teams Alliance in Irvine, California.
He is a member of the Forbes 250 Top Financial Security Professionals list and is author of "Maximize the RedZone," a guide for business owners, as well as "The Great Wealth Erosion," "Manage Markets, Not Stocks" and "Investment Alchemy." He received the 2019 John Newton Russell Memorial Award for lifetime achievement in insurance.
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.

