1, 2018. It was originally expected to be changed back to 4% on October 1, 2018, when Guam anticipated enacting a 2% sales and use tax. That bill was repealed, and the expiration of the reduced Business Privilege Tax rate was repealed, leaving the 5% rate in effect. Hawaii Hawaii does not have a sales tax per se, but it does have a gross receipts tax (called the General Excise Tax) and a Use Tax which apply to nearly every conceivable type of transaction (including services), and is technically charged to the business rather than the consumer. Hawaii law allows businesses to pass on the tax to the consumer in similar fashion to a sales tax. Unlike other states, rent, medical services and perishable foods are subject to the excise tax. Also, unlike other states, businesses are not required to show the tax separately on the receipt, as it is technically part of the selling price. Most retail businesses in Hawaii, however, do list the tax as a separate line item. 4.0% is charged at retail with an additional 0.5% surcharge in the City and County of Honolulu (for a total of 4.5% on Oahu sales), and 0.5% is charged on wholesale. However, the state also allows "tax on tax" to be charged, which effectively means a customer can be billed as much as 4.166% (4.712% on Oahu). The exact dollar or percentage amount to be added must be quoted to customers within or along with the price. The 0.5% surcharge on Oahu was implemented to fund the new rail transport system. As with sales tax in other states, nonprofit organizations may apply for an exemption from the tax. Hawaii also imposes a "use tax" on businesses that provide services that are "LANDED" In Hawaii. One example is: A property owner in Hawaii contracts with a mainland architect to design their Hawaii home. Even though the architect perhaps does all of their work in a mainland location, the architect needs to pay the State of Hawaii a 4% use tax on the architect's fee because the designed house is located in Hawaii (even if the house is never built). The tax is on the produced product which is the design and provided building plans. This applies to commercial property designs as well. Idaho Idaho initiated a sales tax of 3.0% in 1965 and the current rate is 6.0%. Some localities