WASHINGTON — The Internal Revenue Service has updated the tax year 2018 annual inflation adjustments to reflect changes from the Tax Cuts and Jobs Act (TCJA). The tax year 2018 adjustments are generally used on tax returns filed in 2019.

The tax items affected by TCJA for tax year 2018 of greatest interest to most taxpayers include the following dollar amounts:

• The standard deduction for married filing jointly rises to $24,000. For single taxpayers and married individuals filing separately, the standard deduction rises to $12,000; for heads of households, $18,000.

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