celebrating 90 years in business
Embracing the Past
Building for the Future
established in 1934
About Us
Proudly with over 90 years in business, our mission is still to provide professional and quality service that consistently exceeds the expectations of our clients.
Peter Shannon & Co. is committed to open communication and timely responses to our clients throughout the year so we can address any concerns or ideas.
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2025 Tax Considerations
Please click the title below to jump to the section you like to read. Individual Tax Changes Extension and Enhancement of Reduced Income Tax Rate Rate reductions, bracket changes. Under pre-Act law, for tax years 2018 through 2025, the Tax Cuts and Jobs Act (TCJA) temporarily modified the number of income tax brackets and reduced the…
Is your business ready for the tax deadline that’s on Groundhog Day this year?
Normally businesses must furnish certain information returns to workers and submit them to the federal government by January 31. But this year, that date falls on a Saturday. So the deadline is the next business day, which happens to be Groundhog Day: February 2, 2026. W-2s for employees By February 2, employers must furnish and/or file these…
Tax filing FAQs for individuals
The IRS is opening the filing season for 2025 individual income tax returns on January 26. This is about the same time as when the agency began accepting and processing 2024 tax year returns last year, despite IRS staffing having been significantly reduced since then. Here are answers to some FAQs about filing. When is…
Tax filing update for pass-through entities
Do you operate a business as a partnership, a limited liability company (LLC) treated as a partnership for tax purposes or an S corporation? In tax lingo, these are called “pass-through” entities because their taxable income items, tax deductions and tax credits are passed through to their owners and taken into account on the owners’ federal…
When medical expenses are — and aren’t — tax deductible
If you had significant medical expenses last year, you may be wondering what you can deduct on your 2025 income tax return. Income-based thresholds and other rules can make it hard to claim the medical expense deduction. At the same time, more types of expenses may be eligible than you might expect. Limits on the…











