Summer may feel like a quiet time for tax planning, especially after the spring filing rush. In reality, some of the most important tax planning windows open midyear, when business owners, real estate investors, individuals, and families still have time to make informed decisions before the end of the year.

This summer, several federal tax updates deserve attention. Some involve deadlines. Others are focused on Internal Revenue Service (IRS) account access, digital assets, qualified small business stock (QSBS), Health Savings Accounts (HSAs), disaster relief, and Employee Retention Credit claims (refundable tax credits for businesses and non-profits that kept employees on their payroll during pandemic-related government shutdowns or significant revenue declines). And for California taxpayers, the state’s Franchise Tax Board (FTB) identity verification notices deserve a closer look.

In this post, we explain what has changed, who may be affected, and what steps you may need to take before the next tax season catches you by surprise. First up, summer deadlines.

Summer 2026 Tax Deadlines for Individuals and Business Owners

Two July deadlines stand out for taxpayers and business owners.

First, July 6, 2026, marks the deadline for certain Section 174 elections tied to research and experimental expenditures. These rules may matter for businesses with software development, product development, engineering, scientific research, or other innovation-related costs.

Second, July 10, 2026, marks an extended deadline tied to possible COVID-era refund claims for penalties and interest. This deadline stems from litigation involving whether certain filing and payment deadlines received automatic disaster-related postponement during the COVID-19 disaster period (Jan. 20, 2021 – July 10, 2023).

Here’s what that means in plain English: Some taxpayers who paid penalties or interest connected to COVID-era filing or payment timing may have a potential refund claim. The rules remain technical, and the IRS may challenge claims depending on the facts, so it’s best to ask about this during your Summer 2026 Mid-Year Tax Appointment with us here at SWC.

IRS Business Tax Account Access: What Business Owners Should Review in Summer 2026

The IRS has continued to expand online access for business taxpayers. For S corporations and C corporations, certain individuals, known as Designated Officials, can use the IRS Business Tax Account to view information such as Continue reading… Continue reading… Continue reading…