Is It Time for a Payroll Tax Checkup?
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Article Highlights: Tax Reform Underpayment Penalties W-4 Modifications for 2020 Withholding Estimator Penalty Abatement Was your 2018 federal tax refund less than normal, or – worse yet – did you actually owe tax despite usually getting a refund? If so, this was primarily due to the last-minute passage of the Tax Cuts and Jobs Act at the end of 2017. Because the law was only passed late in the year, the IRS did not have adequate time to adjust its W-4 form and the related computation tables to account for all of the changes in the law. Thus, even if your taxes were lower for the year, the lack of adjustments to the W-4 and payroll-withholding tables meant that you likely had lower withholding and higher take-home pay for 2018. The bottom line is that, because your withholding was lower than it should have been, either your refund was lower than normal or you actually ended up owing money instead of getting a refund. This situation surprised many taxpayers, some of whom faced financial hardships because they depended on their federal refunds to cover other expenses, such as home property taxes. Throughout 2018, the IRS issued nearly weekly warnings that the W-4 form and its corresponding withholding tables did not properly account for the tax reform’s changes, which caused the 2018 withholding amounts to be, in many cases, inappropriate. The problem was so widespread that Congress asked the IRS to waive underpayment penalties for taxpayers who ended up with a balance due but who had prepaid at least 80% of their 2018 tax liabilities. (Normally, taxpayers need to prepay 90% of their tax liabilities to avoid this penalty.) Unfortunately, this problem will not be solved in time for the 2019 returns. Despite the problems in 2018, the IRS is waiting until 2020 to implement a new W-4 and to revise the accompanying computations so as to accommodate the tax reform’s changes. As a result, the problem of insufficient withholding will persist for many taxpayers in 2019. We are now over halfway through 2019, so it may be a good time to double-check your withholding and projected tax amounts in order to prevent another unpleasant surprise at tax time. If you are conversant with tax terminology, you can use the IRS’s newly updated
Tax and Financial Insights
by NR CPAs & Business Advisors


2026 IRS Mileage Rates: Key Updates and Insights
The IRS has rolled out the inflation-adjusted mileage rates for 2026, offering taxpayers an efficient way to claim deductions for vehicle-related expenses incurred for business, charity, medical, or moving purposes. These adjustments reflect the continued economic shifts impacting car operation costs.
Effective January 1, 2026, the new standard mileage rates are established as follows:
- Business Travel: Increased to 72.5 cents per mile, inclusive of a 35-cent-per-mile depreciation allocation. This marks a rise from the 70 cents per mile rate set for 2025
- Medical/Moving Purposes: Reduced slightly to 20.5 cents per mile, down from 21 cents in the previous year, reflecting the variable cost considerations.
- Charitable Contributions: Consistent at 14 cents per mile, a fixed rate unchanged for over a quarter-century.
As is typical, the business mileage rate considers the integral fixed and variable costs of automobile operation. Meanwhile, the medical and moving rates remain contingent on variable expenses as determined by the IRS study.

It is critical to note that the One Big Beautiful Bill Act (OBBBA) held firm on disallowing moving expense deductions except for specific cases within the Armed Forces and intelligence community, marking a substantial shift since 2017.
When engaging in charitable work, taxpayers might opt for a direct expense deduction over the per-mile method, covering gas and oil costs. However, comprehensive upkeep and insurance costs are non-deductible expenses.
Business Vehicle Use Considerations: Taxpayers can alternatively compute vehicle expenses using actual costs, which might benefit from shifting depreciation rules, particularly through bonuses and first-year advantages. Keep in mind, however, reverting from actual cost calculations to standard rates in subsequent years is restricted, particularly per vehicle protocol and when exceeding four vehicles in concurrent use.

Additionally, parking, tolls, and property taxes attributable to business can be deducted independently of the general rate, an often-overlooked advantage by many business owners.
Tax Strategies for Employers and Employees: Reimbursements based on the standard mileage framework, providing the right documentation is in place, remain tax-free for employees. Meanwhile, the elimination and continued prohibition of unreimbursed employee deductions continue, with particular exceptions offered to qualified personnel across specific occupations.
Opportunities for Self-employed Individuals: Entrepreneurs remain eligible for deductions on business-related vehicle use via Schedule C, with potential to account for business-use interest on auto loans.

Heavy SUVs and Deduction Advantages: Heavier vehicles exceeding 6,000 pounds but under 14,000 pounds open opportunities for substantial tax deductions through Section 179 and bonus depreciation avenues. The lifecycle of such a vehicle bears implications on recapturing initially claimed deductions, urging cautious tax planning.
For professional guidance on optimizing your vehicle-related tax deductions and understanding their implications on tax strategies, contact our office in Coral Gables, Florida, where expert advice and strategic insights are just a call away.


Educator's Deduction Reform: Key Changes Under OBBBA
The One Big Beautiful Bill Act (OBBBA) introduces significant enhancements for educators' tax deductions starting in 2026, offering both strategic opportunities and planning considerations for educators who qualify. With the reinstated itemized deduction for qualified unreimbursed expenses, educators have a broader spectrum of financial relief. This is complemented by the retention of the $350 above-the-line deduction, allowing educators to maximize their tax benefits by selectively allocating expenses between these avenues.
Understanding the nuances of these changes is crucial for educators and financial advisors alike. The dual-option deduction strategy can potentially enhance tax efficiency, thereby aligning with broader financial planning goals.

At NR CPAs & Business Advisors, based in Coral Gables, Florida, our expertise in tax preparation and planning provides invaluable support to educators navigating these changes. Our comprehensive approach, combined with personalized advice from our experienced team, ensures compliance and optimization in line with the latest tax legislations.
Given these updates, it is imperative to engage with seasoned professionals to fully leverage your deduction strategies. Contact us today to streamline your tax planning under OBBBA's new guidelines and maximize your deductions for upcoming tax years.


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