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Every year, from fall to winter, the season of year-end adjustment comes. I think that the company employee submits the deduction certificate sent by the insurance company and the year-end balance certificate of the home loan along with the dependent exemption form distributed by the company. There are many people who say, "I don't know."
You don't need to know the detailed mechanism, but if you don't understand it even roughly, you may lose money.
For example, if the numbers on the documents you submit are incorrect, you may end up paying too much tax. The idea that "the company will notice and fix it" is naive. If you don't write it correctly, the company won't notice the mistake, and if you carelessly write something that is different from the truth, you may be charged with tax later by the government office.
On the contrary, even though you fill it out properly, the company may make a mistake and lose money. Not many, but it is a fact that can happen.
What is a year-end tax adjustment to avoid losing money on taxes? "In what cases do mistakes occur?" "Where should I check?" "Let's check."
What is year-end tax adjustment in the first place? The year-end adjustment is a system that adjusts and settles the annual income tax (and special income tax for reconstruction) for salaried workers such as salaried workers. The salary payer (workplace) calculates the correct income tax based on the employee's salary and bonus for that year, and settles the excess or deficiency with the income tax withheld at the time of payment. Information on “income deductions” is necessary to calculate this accurate income tax.
For this reason, employees must submit "(1) Employment income earner's insurance premium deduction declaration" and "(2) Employment income earner's basic exemption declaration and employment income income spouse exemption declaration and income adjustment deduction declaration." Fill in the necessary items in the “(3) Application for Exemption for Dependents of Employment Income Earners (Change)” and submit the originals such as life insurance premium deduction certificate and year-end balance certificate for housing loan deduction to the company. If you do not enter the correct information here, your income tax will be calculated incorrectly.
At that time, let's take a look at where it is easy to make a mistake and where the company overlooks.