# Why my bi-weekly salary after taxes doesn't sum up my yearly income [duplicate]

I'm a little bit confused about my paycheck. We have an internal tool that helps me calculate my bi-weekly paycheck, the details are as follows... keep in mind that my F1 OPT status exempts me from Social Security + Medicare.

Annual Salary \$100000

Bi-weekly Gross Pay \$3,846.15

Federal Withholding \$741.26

Social Security \$0.00

Medicare \$0.00

California \$270.79

CA SDI \$34.62

Net Pay \$2,799.48

Now, my salary is supposed to be 100k per year. Now, let's ignore taxes for a minute, I just want to figure out the logic behind this simple calculation. If I add my Bi-weekly gross pay (\$3,846.15 * 2) this means I earn \$7692.3 per month, or in other words \$92307.6 per year (\$7692.3*12). Where did those extra \$8k disappear?... What I mean is that by doing this I was expecting to get around 99k. I'm new at calculating taxes, so what is the explanation?

• Your calculation only uses 24 pay periods in the year. There are 26 fortnights in the year not 24. – Victor Feb 9 '16 at 20:14
• 52 weeks/ year, 52/2 = 26. – Pete B. Feb 10 '16 at 18:45

In some months there are three biweekly payments.

If you multiply \$3846.15 by 26 (the number of biweekly periods in the year) you get \$99999.90. I wouldn't worry about the extra ten cents.

• You are actually getting a slight bonus, because approximately once every 11 years there are 27 biweekly paydays in a year. That's a 0.3% bonus. – DJClayworth Feb 9 '16 at 18:52
• Unless your payroll department is totally incompetent (some are), the last bi-weekly paycheque in your salary year will be for an amount to bring your total paid to the exact annual salary total,,, – DJohnM Feb 9 '16 at 22:25
• Doesn't biweekly mean twice per week. The correct term for being paid every two weeks is fortnight. – Victor Feb 9 '16 at 22:45
• Biweekly can mean either twice a week or every two weeks depending on context and location... Love this language... – DJohnM Feb 10 '16 at 4:42
• @DJohnM - that is why we use fortnightly. If you write the sentence: "I get a cheque biweekly" what does it mean? Does it mean I get a cheque twice a week or does it mean I get a cheque every two weeks? Or both?? And why do you spell cheque as check. Imagine if I wrote: "I would like to check your check" Why not spell it like most other English speaking nations - cheque !!! – Victor Feb 10 '16 at 9:23

There are 26 pay periods for you bi-weekies. 3846.15 * 26 = 99999.90.

• The average year has 365.2422 days. 365.2422 / 14 = 26.0887285714. So you get 26 paychecks in a year, but one year out of 12 you get 27 paychecks. So that makes up for the missing 10¢ – Jack Swayze Sr Feb 9 '16 at 19:12
• I just checked and January 1st of this year was a Friday. If you got paid on January 1st then you will get a paycheck on December 31st making 2016 the year you get 27 paychecks in the year instead of 26. – Jack Swayze Sr Feb 9 '16 at 19:24