1 Therefore, a deficiency of vitamin B6 may result in symptoms of anxiety and depression due to inhibition of serotonin synthesis. 2  In a study of individuals suffering from frequent anxiety attacks, patients were given vitamin B6 (125mg, 3 times daily) and tryptophan (2 grams daily).
Need an updated list of Hawaii sales tax rates for your business? Download our Hawaii sales tax database! The Kapolei, Hawaii sales tax rate of 4.50% applies to the following two zip codes: 96707 and 96709. There are approximately 29,472 people living in the Kapolei area. Remember that zip code boundaries don't always match up with political boundaries (like Kapolei or Honolulu County), so you shouldn't always rely on something as imprecise as zip codes to determine the sales tax rates at a given address.
Hawaii (HI) Sales Tax Rates by City. The state sales tax rate in Hawaii is 4.000%. With local taxes, the total sales tax rate is between 4.000% and 4.500%. Hawaii does not have a sales tax, but instead has a gross receipts tax which is called the General Excise Tax. This tax is the responsibility of the business to pay, but most businesses will pass this tax on the purchaser in the same way a sales tax is. Hawaii has recent rate changes (Thu Dec 26 2013). Select the Hawaii city from the list of popular cities below to see its current sales tax rate.