Interesting Metrics for Personal Tax Returns – 2018 vs. 2017e
2018 was the first year that incorporated the majority of the tax law changes resulting from the Tax Cuts and Jobs Act of 2017 (TCJA) enacted just prior to the end of 2017. While many taxpayers were very concerned with the loss of certain tax deductions that had benefited them over the past tax years, the TCJA did attempt to offset such lost deductions by lowering the tax rates for taxpayers as well as by enhancing certain tax credits.
As a result of the TCJA, we actually saw that most of our clients paid a lower federal tax on their 2018 tax returns as compared to their 2017 tax returns. We’re pleased to share with you the following metrics highlighting how our healthcare professional clients were impacted by the TCJA.
Lower tax rates.
The TCJA lowered the bracketed income tax rates for individual taxpayers. In comparing the average tax per tax return (total income tax as a percentage of adjusted gross income), we observed a decrease in the average federal tax rate paid by our clients by 1.4%. In 2018, the average tax rate for our clients base of mostly physicians, dentists, and psychologists ran at 24.6% as compared to an average rate of 26.0% in 2017.
Tax refunds.
The number of our clients that received a federal tax refund in 2018 was consistent with the number of our clients that received a refund in 2017. 38% of our clients received refunds each year.
Federal income taxes owed.
Similarly, the number of our clients owing additional federal income taxes when their tax returns were completed was consistent for 2018 and 2017. However, we noted an increase in the average amount of taxes due with those clients that owed money to the IRS. For these clients, their federal balance due on average increased by almost one-third: from $6,700 per tax return in 2017 to $8,600 in 2018.
State and local tax (SALT) limitation.
One of the major concerns of most taxpayers was the limitation on the SALT deduction, now being capped at $10,000. As a result of this change, the average SALT deduction for our clients nose-dived by $22,423 to $8,181 from the 2017 amount of $30,604.
Standard deduction.
The new tax law increased the standard deduction to $24k for married couples and $12k for single individuals. With the new limitation on certain itemized tax deductions as noted above coupled with the increased standard deduction amounts, 36% of our clients claimed the standard deduction on their tax return in 2018 whereas only 10% of prepared tax returns in our office claimed the standard deduction on their 2017 tax return.
Alternative Minimum Tax (AMT).
One huge sigh of relief for many healthcare professionals resulting from the TCJA was the virtual disappearance of the AMT for nearly all our clients. The AMT was assessed on 47.5% of the tax returns prepared in our office in 2017. That amount dropped to less than 1% in 2018,with only 7 tax returns in our office paying any amount of AMT in 2018.
Child Tax Credit.
Changes to the Child Tax Credit rules is another tax break that was greatly expanded by the TCJA. The dollar amount of the tax credit increased in amount from 2017 to 2018. Additionally, the income limitation where taxpayers no longer qualified for the tax credit significantly increased as well. As a result, the number of our clients that claimed the credit increased by 742. This tax credit was claimed on 818 of our clients’ tax returns in 2018 compared to only 76 of our clients’ tax returns in 2017. The average Child Tax Credit reported per tax return claiming this tax credit increased from $1,114 in 2017 to $3,093 in 2018, a jump of $1,979 per tax return qualifying for this enhanced tax credit.
Qualified Plug-in Electric Drive Motor Vehicle Credit.
One final item we noted (and not a result of the TCJA) was an increase in our clients that purchased automobiles qualifying for the Qualified Plug-in Electric Drive Motor Vehicle Credit. The number of tax returns for our clients reporting this tax credit on a From 8936 increased by 30 from 2017 to 2018. In 2018 the tax credit was reported on 46 tax returns compared to being reported on only 16 tax returns in 2017. It seems that the Tesla is the auto of choice regarding this tax credit. In 2017 five tax returns in our office claimed the purchase of a new Tesla. In 2018 the number of tax returns reporting a new Tesla purchase increased to 31. With the new Tesla Model 3 being priced at the more affordable MSRP of $35,000 and becoming available only later in the 2017 tax year, our clients’ tax returns reported a total of 18 Model 3 purchases in 2018. A second reason for the spike in Tesla purchases being reported on tax returns is the knowledge by taxpayers that the tax credit was becoming limited to only $3,750 for a Tesla purchased beginning January 2019. Prior to 2019, taxpayers qualified for a $7,500 tax credit for Tesla purchases.


If you own an unincorporated business, you likely pay at least three different federal taxes. In addition to federal income taxes, you must pay Social Security and Medicare taxes, also called the self-employment tax.
Self-employment taxes are not insubstantial. Indeed, many business owners pay more in self-employment taxes than in income tax. The self-employment tax consists of
- a 12.4 percent Social Security tax up to an annual income ceiling ($147,000 for 2022) and
- a 2.9 percent Medicare tax on all self-employment income.
These amount to a 15.3 percent tax, up to the $147,000 Social Security tax ceiling. If your self-employment income is more than $200,000 if you’re single or $250,000 if you’re married filing jointly, you must pay a 0.9 percent additional Medicare tax on self-employment income over the applicable threshold for a total 3.8 percent Medicare tax.
You pay the self-employment tax if you earn income from a business you own as a sole proprietor or single-member LLC, or co-own as a general partner in a partnership, an LLC member, or a partner in any other business entity taxed as a partnership. (There is an exemption for limited partners.)
You don’t pay self-employment tax on personal investment income or hobby income. For example, you don’t pay self-employment tax on profits you earn from selling stock, your home, or an occasional item on eBay.
The tax code bases your self-employment
tax on 92.35 percent of your net business income.
That means your business deductions are doubly valuable since they reduce both income
and self-employment taxes. In contrast, personal itemized deductions and “above-the-line”
adjustments to income don’t decrease your self-employment tax.
Some types of income are not subject to self-employment tax at all, including
- most rental income,
- most dividend and interest income,
- gain or loss from sales and dispositions of business property, and
- S corporation distributions to shareholders.
You calculate your self-employment taxes on IRS Form SE and pay them with your income taxes, including your quarterly estimated taxes.
If you have questions about the self-employment tax, please don't hesitate to call out office at 716-875-2100

Of course, the IRS is not likely to cut you a check for this money (although in the right circumstances, that will happen), but you’ll realize the cash when you pay less in taxes.
Here are six powerful business tax deduction strategies that you can easily understand and implement before the end of 2021.
1. Prepay Expenses Using the IRS Safe Harbor
You just have to thank the IRS for its tax-deduction safe harbors.
IRS regulations contain a safe-harbor rule that allows cash-basis taxpayers to prepay and deduct qualifying expenses up to 12 months in advance without challenge, adjustment, or change by the IRS.
Under this safe harbor, your 2021 prepayments cannot go into 2023. This makes sense, because you can prepay only 12 months of qualifying expenses under the safe-harbor rule.
For a cash-basis taxpayer, qualifying expenses include lease payments on business vehicles, rent payments on offices and machinery, and business and malpractice insurance premiums.
Example. You pay $3,000 a month in rent and would like a $36,000 deduction this year. So on Friday, December 31, 2021, you mail a rent check for $36,000 to cover all of your 2022 rent. Your landlord does not receive the payment in the mail until Tuesday, January 4, 2022. Here are the results:
- You deduct $36,000 in 2021 (the year you paid the money).
- The landlord reports taxable income of $36,000 in 2022 (the year he received the money).
You get what you want—the deduction this year.
The landlord gets what he wants—next year’s entire rent in advance, eliminating any collection problems while keeping the rent taxable in the year he expects it to be taxable.
2. Stop Billing Customers, Clients, and Patients
Here is one rock-solid, easy strategy to reduce your taxable income for this year: stop billing your customers, clients, and patients until after December 31, 2021. (We assume here that you or your corporation is on a cash basis and operates on the calendar year.)
Customers, clients, patients, and insurance companies generally don’t pay until billed. Not billing customers and patients is a time-tested tax-planning strategy that business owners have used successfully for years.
Example. Jim, a dentist, usually bills his patients and the insurance companies at the end of each week. This year, however, he sends no bills in December. Instead, he gathers up those bills and mails them the first week of January. Presto! He just postponed paying taxes on his December 2021 income by moving that income to 2022.
3. Buy Office Equipment
With bonus depreciation now at 100 percent along with increased limits for Section 179 expensing, buy your equipment or machinery and place it in service before December 31, and get a deduction for 100 percent of the cost in 2021.
Qualifying bonus depreciation and Section 179 purchases include new and used personal property such as machinery, equipment, computers, desks, chairs, and other furniture (and certain qualifying vehicles).
4. Use Your Credit Cards
If you are a single-member LLC or sole proprietor filing Schedule C for your business, the day you charge a purchase to your business or personal credit card is the day you deduct the expense. Therefore, as a Schedule C taxpayer, you should consider using your credit card for last-minute purchases of office supplies and other business necessities.
If you operate your business as a corporation, and if the corporation has a credit card in the corporate name, the same rule applies: the date of charge is the date of deduction for the corporation.
But if you operate your business as a corporation and you are the personal owner of the credit card, the corporation must reimburse you if you want the corporation to realize the tax deduction, and that happens on the date of reimbursement. Thus, submit your expense report and have your corporation make its reimbursements to you before midnight on December 31.
5. Don’t Assume You Are Taking Too Many Deductions
If your business deductions exceed your business income, you have a tax loss for the year. With a few modifications to the loss, tax law calls this a “net operating loss,” or NOL.
If you are just starting your business, you could very possibly have an NOL. You could have a loss year even with an ongoing, successful business.
You used to be able to carry back your NOL two years and get immediate tax refunds from prior years, but the Tax Cuts and Jobs Act (TCJA) eliminated this provision. Now, you can only carry your NOL forward, and it can only offset up to 80 percent of your taxable income in any one future year.
What does this all mean? You should never stop documenting your deductions, and you should always claim all your rightful deductions. We have spoken with far too many business owners, especially new owners, who don’t claim all their deductions when those deductions would produce a tax loss.
6. Deal with Your Qualified Improvement Property (QIP)
In the CARES Act, Congress finally fixed the qualified improvement property (QIP) error that it made when enacting the TCJA.
QIP is any improvement made by you to the interior portion of a building you own that is non-residential real property (think office buildings, retail stores, and shopping centers) if you place the improvement in service after the date you place the building in service.
The big deal with QIP is that it’s not considered real property that you depreciate over 39 years. QIP is 15-year property, eligible for immediate deduction using either 100 percent bonus depreciation or Section 179 expensing. To get the QIP deduction in 2021, you need to place the QIP in service on or before December 31, 2021.
I trust that you found the six ideas above worthwhile. If you would like to discuss any of them, please give us a call.
Armenia CPA PLLC







