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…
What’s your potential business vehicle deduction?
If you used one or more vehicles in your business during 2025, you may be eligible for valuable tax deductions on your 2025 income tax return. Businesses can generally deduct expenses attributable to business use of a vehicle plus depreciation. However, the rules are complicated, and your deduction may be affected by factors such as…
4 types of interest expense you may be able to deduct
Personal interest expense generally can’t be deducted for federal tax purposes. There are, however, exceptions. Here are four, one of which is a new break under the One Big Beautiful Bill Act (OBBBA), which was signed into law in 2025. 1. Mortgage interest Perhaps the most well-known interest expense deduction, home mortgage interest may be…
Deferring taxes on advance payments
An advance payment is one received by a business before it provides whatever is being paid for. For federal income tax purposes, generally advance payments must be reported as taxable income in the year received. This treatment always applies if your business uses the cash method of accounting for tax purposes. But, if your business…
Parents: Claim all the tax credits you’re entitled to
Raising a family comes with plenty of expenses, but it may also make you eligible for various tax breaks. Some of the most valuable are tax credits, because they reduce your tax liability dollar for dollar (unlike deductions, which only reduce the amount of income subject to tax). Here’s what you need to know. Child,…











