Those who are married and filing jointly will have an increased standard deduction of $24,000, up from the $13,000 it would have been under previous law.
Single taxpayers and those who are married and file separately now have a $12,000 standard deduction, up from the $6,500 it would have been for this year prior to the reform.
For heads of households, the deduction will be $18,000, up from $9,550.
The personal exemption has been eliminated with the tax reform bill.
3.Top income tax rate
A new 37 percent top rate will affect individuals with incomes of $500,000 and higher. The top rate kicks in for married taxpayers who file jointly at $600,000 and up.
The new tax law also includes changes to other tax brackets.
The estate exemption doubles to $11.2 million per individual and $22.4 million per couple in 2018.
5.Child tax credit
The child tax credit has been raised to $2,000 per qualifying child, those who are under 17, up from $1,000. A $500 credit is available for dependents who do not get the $2,000 credit.
The deduction for interest is capped at $750,000 for mortgage loan balances taken out after Dec. 15 of last year. The limit is still $1 million for mortgages that were established prior to Dec. 15, 2017.
7.State and local taxes
The itemized deduction is limited to $10,000 for both income and property taxes paid during the year.
8.Contribution limits for retirement savings
Employees who participate in certain retirement plans ‒ 401(k), 403(b) and most 457 plans, and the Thrift Savings Plan – can now contribute as much as $18,500 this year, a $500 increase from the $18,000 limit for 2017.
9.Savings in IRAs
Savers who contribute to individual retirement accounts will have higher income ranges following cost-of-living adjustments. Note that the deduction phases out for individuals and their spouses who are covered by workplace retirement plans.
For single taxpayers, the limit will be $63,000 to $73,000.
For married couples, the phaseout range will vary depending on whether the IRA contributor is covered by a workplace retirement plan or not. When the spouse who is investing has access to an employer plan, the range is $101,000 to $121,000. For individuals who don’t have a retirement plan but are married to someone who does, the phaseout has been raised to $189,000 to $199,000.
The phaseout was not adjusted for married individuals who file a separate return and who are covered by a workplace retirement plan. That range is $0 to $10,000.
10.Contributions to Roth IRAs
For individuals who are single or the heads of their households, the income phaseout has been raised to $120,000 to $135,000. For married couples who file jointly, the range climbs to $189,000 to $199,000.
The phaseout was not adjusted for married individuals who file a separate return. That is $0 to $10,000.