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How Might the New Tax Reform Law Affect You?


Under the Tax Cuts and Jobs Act, many individuals will see significant changes next year when filing their 2018 tax returns. But whether or not those changes will lower their total tax liability depends on several factors. 415 Group Senior Associate Mikaela Ferguson, CPA, explains.

Taxpayers need to know that it’s not going to be good news for everyone. We’re definitely going to see taxable income be slightly higher for some taxpayers who are right around the itemized deduction limitation. Those individuals will probably take the standard deduction instead, which will make their tax records a lot easier to file, but they’re not going to be getting the benefit for what they pay throughout the year. However, with the child credit doubling and the adjusted gross income phase out increasing, taxpayers with dependents will get a much larger benefit for each child under age 17.

As the example in the article shows, taxpayers who typically use the state tax deduction might end up paying more, since they’re limiting that deduction. But taxpayers who have a lot of charitable contributions are probably going to have similar itemized deductions in 2018 as they had 2017.

So, overall, there are several things that are working in some taxpayers’ favor, but it will depend on individual circumstances. Your tax rate might be reduced, but your tax liability might increase. So as a taxpayer, I guess I don’t care what my tax rate is, if I still owe more taxes.

This year, be proactive in looking at ways to work with the new tax law for planning purposes. Consult our team at 415 Group to see what makes sense for you. There are so many moving pieces with this tax law, and it’s difficult as a taxpayer to know what’s changing. Our team can review your situation and help you plan ahead.

President Trump and Republican members of Congress say the Tax Cuts and Jobs Act (TCJA) will bring $3.2 trillion in tax cuts. Now that the bill has passed, everyone wants to know how much they'll save.

Unfortunately, the tax bill won't be good news for everyone. Here's a comparison of how tax results for a typical family of four might be affected by the tax law changes, which generally are effective for tax years beginning after December 31, 2017.

Taxes Due in 2017

Meet the Smiths. They're a family with two married parents and 18-year-old twins. Their adjusted gross income (AGI) for 2017 is $200,000. And they qualify for the following itemized deductions:

    • State income and property taxes ($19,500)
    • Mortgage interest ($25,000), and
    • Charitable contributions ($500).

For 2017, because the couple has $45,000 in itemized deductions vs. a standard deduction of only $12,700, it makes sense for the Smiths to itemize. In addition, they're eligible for a $4,050 exemption for each member of the family, which reduces their AGI by a total of $16,200. So, their taxable income for 2017 is $138,800 ($200,000 - $45,000 - $16,200). They don't qualify for the child tax credit in 2017, because their children are not under age 17. (Even if the kids were younger, the Smith's AGI is too high to qualify for the credit for 2017.)

For 2017, the tax brackets for a married couple that files jointly are:

Taxable Income

Taxes Due

Not over $18,650

10% of taxable income

Over $18,650 but not over $75,900

$1,865 plus 15% of the excess over $18,650

Over $75,900 but not over $153,100

$10,452.50 plus 25% of the excess over $75,900

Over $153,100 but not over $233,350

$29,752.50 plus 28% of the excess over $153,100

Over $233,350 but not over $416,700

$52,222.50 plus 33% of the excess over $233,350

Over $416,700 but not over $470,700

$112,728 plus 35% of the excess over $416,700

Over $470,700

$131,628 plus 39.6% of the excess over $470,700


For 2017, the Smiths will owe $26,177.50 in federal income taxes ($10,452.50 + 25% x ($138,800 - $75,900)). That equates to an effective tax rate of 18.9% of taxable income.

Taxes Due in 2018

For simplicity, let's assume the family's income and deductions stay the same in 2018. So, again, they have AGI of $200,000 for 2018. But the rules regarding itemized deductions have changed under the new tax reform law. They're still eligible to deduct charitable contributions and mortgage interest, but their deduction for state property and income tax (combined) is limited to only $10,000. So, the couple's itemized deductions total $35,500 for 2018.

Under the new law, the standard deduction increases significantly to $24,000 for a married couple. But, for the Smiths, their itemized deductions are still higher than the standard deduction, so it makes sense for them to itemize again in 2018.

The personal and dependency exemptions were suspended through 2025 under the new tax law. The TCJA increases the child credit to $2,000 and the AGI phaseout threshold to $400,000. But the Smiths' two children, who are over age 17, don't qualify for the child tax credit. (If their children were under 17, the Smiths would be eligible for $4,000 in child tax credits for 2018.) However, for both of their kids, the family qualifies for the new $500 credit for each dependent who isn't a qualified child. So the Smiths are eligible for $1,000 in dependent tax credits.

The Smith's taxable income for 2018 is $164,500 ($200,000 - $35,500). For 2018, the tax brackets for a married couple that files jointly are:

Taxable Income

Taxes Due

Not over $19,050

10% of taxable income

Over $19,050 but not over $77,400

$1,905 plus 12% of the excess over $19,050

Over $77,400 but not over $165,000

$8,907 plus 22% of the excess over $77,400

Over $165,000 but not over $315,000

$28,179 plus 24% of the excess over $165,000

Over $315,000 but not over $400,000

$64,179 plus 32% of the excess over $315,000

Over $400,000 but not over $600,000

$91,379 plus 35% of the excess over $400,000

Over $600,000

$161,379 plus 37% of the excess over $600,000


So, for 2018, the Smiths will owe $27,069 in federal income taxes ($8,907 + 22% x ($164,500-$77,400) - $1,000 in dependent tax credits). That equates to an effective tax rate of 16.5% of taxable income.

Bottom Line

As this hypothetical example shows, the TCJA won't cut taxes for everyone. Here, the Smiths would end up owing an extra $891.50 in taxes for 2018 under the new law, compared to what they will owe for 2017 under the old law. Even though their effective tax rate is reduced, the new law eliminates or limits some key tax breaks for this family and results in a higher tax bill.

Specifically, their state tax deduction was limited to only $10,000 for 2018, and their personal and dependency exemptions were eliminated for 2018.

How would the situation differ if the Smiths' children were under 17? In that case, the couple's tax bill would have been reduced by $4,000 in child tax credits, and they would be better off under the new law. That is, their 2018 tax liability would be $24,069 — $2,108.50 less than they will owe for 2017.

Important note: As this example shows, a tax credit (like the child tax credit or the new dependent tax credit) will always provide greater tax savings than a deduction (like the dependency exemption), because credits reduce taxes dollar for dollar. A deduction reduces only the amount of income that's subject to tax.

Contact Your Tax Pro

Each taxpayer's situation is unique. Discuss the pros and cons of the new tax law with your tax advisor to determine how the law will affect you and identify tax planning strategies to help lower your taxes in 2018 and beyond.

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