How to Calculate Your Annual Salary

If you are an hourly waged employee or independent contractor, it is beneficial to calculate your annual wages by hourly earnings. You are usually required to provide information about your annual salary in your application form; or you may want to compare salaries among new career opportunities. Either way, you can calculate your annual salary using simple formulas and basic math.

Table of Contents

Where the number of working hours per week is the same

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Find your hourly rate. You probably already know how much money you get every hour. For example, you get 90,000 VND/hour. But if you don’t know yet, find out this information.

Hourly wages will be on your payslip, if the employer provides one. ^{[1] X Research Source}
If you are not sure, you can also ask your manager, or an employee of the human resources / human resources department.

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Calculate the total number of hours you work each year. Multiply the number of hours you work per week by 52, because a year has 52 weeks. ^{[2] X Research Source}

For example, if you work 40 hours per week, your math would look like this: 40 hours x 52 weeks = 2080 hours in a year.

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Multiply your hourly rate by the number of hours worked per year. Now, all you need to do is multiply the hours by the wages. ^{[3] X Research Sources}

Following the above example, VND 90,000 x 2080 = VND 187.2 million. This is your annual salary.

Where the number of working hours per week is different

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Track your working hours. Write down how many hours you work each day. At the end of the week, calculate your total working hours.

You can use electronic applications, online software or just write down in a notebook. ^{[4] X Research Sources}
If your work hours vary from week to week, you’ll want to track your hours over a longer period of time. You can then average the hours worked.
For example, if you worked 10 hours the first week, 25 hours the next week, 15 hours the following week, and 30 hours the last week, you worked 80 hours that month. Divide this number by 4 weeks and you get an average of 20 hours of work per week. ^{[5] X Research Sources}
If your working hours vary significantly between different periods of the year, you need to track an even longer period. For example, imagine that you work 50 hours per week for a few weeks near the holidays, but only 20 hours per week in the summer. This change will greatly affect your calculations. In the case of large variations, you may have to track the number of hours worked for an entire year for accurate figures.

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Determine your overtime hours. In the United States, if you work more than 40 hours in a 7-day period, your employer must pay you one and a half times your normal wage. In other words, you’ll get an extra half-hour for every hour you work over 40 hours a week. ^{[6] X Research Source} Vietnam’s law also has similar regulations, but overtime pay will be different depending on overtime working days (weekdays, weekends or public holidays).

The formula for this calculation is: Total hours worked for pay in the week = Actual hours worked + [0.5 x (actual hours worked – 40)]
For example, you work 45 hours in a week. You worked 5 hours overtime. Let’s multiply 5 by 0.5. The result you get is 2.5 hours extra. Add this number to 45 hours of normal work. With this calculation, your working hours are 47.5 instead of 45.

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Calculate the number of hours you work in a year. To find this number, multiply average weekly hours worked by 52. ^{[7] X Source} For example, if you normally work 45 hours per week, multiply 47.5 hours (adjusted) for overtime) with 52. The result is 2,470 hours per year.

If you track hours worked for an entire year, you simply add them up, instead of multiplying the average number of hours worked per week by the number of weeks worked.

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Calculate your salary. Multiply hours worked by hourly wages.

For example, if you get VND 90,000/hour, multiply 2,470 by VND 90,000. Your annual salary will be 222,300,000 VND.

Extra remuneration

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Including bonuses. Add bonuses, commissions or any other incentives you receive to your annual salary. Many hourly positions have incentives included in the hourly rate. For example, you may receive bonuses based on performance, leadership, or tenure (the length of time on the job). ^{[8] X Research Sources}

Some employers offer annual holiday bonuses to all employees. With the example in Part 1, imagine that you receive a bonus of VND 4,000,000 per year. Your math will be as follows: 187.2 million VND + 4,000,000 = 191,200,000 VND.
If you receive commissions or variable bonuses, you need to track these for a year to include them in your paycheck. For example, imagine that you are rewarded with VND 1,000,000 every time you reach a certain level of sales. If you get the bonus 12 times in a year, you will multiply VND 1,000,000 by 12, resulting in VND 12,000,000. With the above example, you would add 191,200,000 VND + 12,000,000 VND to get the final result of 203,200,000 VND.

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Deduct benefits and payments. If you pay for your medical expenses or a 401(k) in the United States, you’ll want to subtract these to find your “payable income.”

These are basically still part of your income. But they represent an amount that does not increase your purchasing power.
Check your pay stubs to find out how much to deduct for these expenses each month. To get the year number, multiply the month’s expenses by 12. Subtract the result from your annual income. ^{[9] X Research Source}
For example, if medical expenses cost 3,000,000 VND a month, it will cost you 3,000,000 VND x 12 = 36,000,000 VND a year. Subtract this from your annual salary.

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Determine the amount of income tax payable. You will know your salary before or after tax. In Vietnam, to know the amount of income tax payable, you need to learn the Personal Income Tax Law and the progressive tax schedule.

In the United States, you need to check which federal tax bracket your income falls under to determine how much federal income tax to pay. Your annual income will determine the amount of tax you are subject to. An online tax bracket calculator can help you figure this out if you don’t know what tax bracket you’re in. ^{[10] X Research Source}
In the United States, the state tax rate depends on where you live. Many states do not collect income taxes. For states that collect taxes, the tax rate will be around 5-6%. You can find state income tax rates online. ^{[11] X Research Source}
To calculate your U.S. after-tax income, subtract 100% from your income tax rate. For example, if you are in the 20% tax bracket, you will have 80% of your income left.
Change the tax rate as a percentage to a decimal by moving the comma two rows to the left. For example, if you keep 80% of your earnings, the corresponding decimal would be 0.80 (or 0.8).
Multiply your monthly income by that decimal to get your US after-tax income. You can calculate your monthly or annual salary this way. ^{[12] X Research Source}
If your salary in the United States is $2,800 and you are in the 30% tax bracket, your corresponding decimal is 0.7. Multiply $2,800 by 0.7 to get $1,960 a month. This is your after-tax income in the United States. ^{[13] X Research Source}

Advice

Under the United States Fair Standard Labor Act, an hourly worker must be paid severance pay. This is the time when the employer requires the employee to be present, even if there is nothing to do. You’ll also be paid for the time you work on an as-needed basis, and you’ll have to be at work at all times ready for action. You also get paid for working during breaks or mealtimes. Breaks are usually less than 20 minutes; you will be paid for mealtimes if forced to work at that time. ^{[14] X Trusted Source US Department of Labor Go to Source}
You can reverse the math, using the annual earnings to calculate the corresponding hourly rate. Divide the total amount you receive annually by the number of hours worked. If you work full time, the hours will be 2080 (52 weeks, 40 hours per week). For example, a person with an annual salary of VND 200,000,000 will have an hourly rate of VND 96,000 when dividing the annual salary by 2080.
If you’re paid for travel or sick leave and don’t work for several weeks, don’t change the number of weeks you’re paid (namely 52 weeks). If you are taking a few weeks off unpaid to travel, subtract 52 from the number of weeks taken. ^{[15] X Research Source}

Steps

Where the number of working hours per week is the same

Where the number of working hours per week is different

Extra remuneration

Advice

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