In California, which of the following deductions is not applicable under the current tax law for the year 2021?

The business expenses related to employment deduction is not applicable under the current tax law for the year 2021 due to changes implemented by the Tax Cuts and Jobs Act (TCJA) of 2017. Prior to this legislation, employees could deduct unreimbursed business expenses as miscellaneous itemized deductions on their federal tax returns. However, beginning with the 2018 tax year and extending through 2025, the TCJA eliminated this deduction for employees.

In contrast, the other options are still viable deductions. For instance, mortgage interest can be deducted as an itemized expense, charitable contributions are also deductible, and state income taxes can still be deducted, albeit capped under certain limits. Understanding the nuances and specifics of the tax law is essential for individuals in real estate and finance, as it can significantly affect personal financial planning and strategy.