Water Service Excise Tax
In 2018, the Iowa legislature passed a new law, SF 512, effective July 1, 2018, which creates a Water Service Excise Tax (WET). Prior to the enactment of this law, the sale of water was subject to the 6% state sales tax. The WET exempts the sale of water service from state sales tax, but imposes a 6% excise tax on the sale of water service.
Some entities that make sales of water service and other goods or services will now have to separately collect and remit the 6% excise tax on water service sales in addition to state sales tax on other goods or services. For example, if an entity that sells both sewage and water services is currently collecting and remitting state sales tax on sewer charges to nonresidential commercial customers, they will continue to collect this portion as sales tax plus any applicable local option sales tax. However, the entity will no longer collect state sales tax on the sale of water service, but will collect the WET on the sales of water service.
NOTE: Beginning July 1, 2018 - water utilities must separately collect and remit WET under a new permit number.
Watch this site for periodic updates to information regarding WET. To receive information about WET, sign up here. After providing your email, choose the Water Service Excise Tax option under the Tax Information drop down. You also can subscribe to other tax information at the same time. Email us if you have questions not answered below.
The WET applies to the sale of water service by water utilities.
Water service means the delivery of water by a piped distribution system. A water utility means any person, partnership, business association, or corporation, including municipally owned corporations, domestic or foreign, who owns or operates any facilities for making sales of water service to the public for compensation.
For purposes of WET, a facility is any storage tank, well, plant, reservoir, aqueduct, hydrant, pump, or any other similar device, mechanism, equipment, or amenity designed to hold, treat, sanitize, or deliver water. Facility does not include interior plumbing.
Over the life of the WET, a portion of the total taxes collected will be distributed into two funds—the water quality infrastructure fund and the water quality assistance fund—which will provide money to the Department of Agriculture and Land Stewardship and the Iowa Finance Authority. These funds will be used to improve water quality in Iowa. The remaining portion of WET that is not distributed into either of these funds will be deposited into the General Fund.
All water utilities must apply for and obtain a new permit to collect and remit WET. The process to obtain a WET permit is very similar to the process for obtaining a sales tax permit, and the requirements for sales tax permits under Iowa Administrative Code chapter 701-13 will apply to WET permits. Simply print and complete this form and mail it to the following address:
All applications for WET permits must be submitted via mail. There is no electronic permit application.
Except as otherwise stated on this website, the requirements for filing returns and deposits for sales tax under Iowa Administrative Code chapter 701-12 will apply to WET.
With respect to filing of returns, all water utilities must file quarterly returns. However, if you expect that your annual tax liability for water sales will not exceed $120, you may apply to the Director to file annual returns.
WET filing and payments are handled through the Iowa Department of Revenue eFile & Pay system, found here. The same criteria for determining your filing frequency for sales tax apply to determining your filing frequency for WET. For purposes of determining your filing status, the Department will use the following criteria based on your combined WET and sales tax remittances:
Instructions for filing returns can be found on our website:
Q: Is WET an additional tax on top of sales and use tax for water service
A: No. WET replaces the sales and use tax for sales of water service only.
Q: Is WET subject to the Local Option Sales Tax (LOST)?
A: No. There is no LOST on the WET.
Q: My sales of water service were previously exempt from sales tax. Are my sales of water service still exempt from WET?
A: Probably yes, but not necessarily. All of the sales tax exemptions found in Iowa Code section 423.3 that applied to the sale of water also apply to the sale of water service.
Q: I have a sales tax exemption certificate because I was previously exempt from paying sales tax on water service. I am now also exempt from paying WET. Can I use this certificate, or must I obtain a new WET exemption certificate?
A: If you are exempt from WET, then an exemption certificate must be on file with the seller. An existing, valid Iowa Sales Tax Exemption Certificate which is currently on file is acceptable. However, if the reason for exemption has changed, you will need to complete a new exemption certificate. The current Iowa Sales Tax Exemption Certificate can be found on our website.
Q: I do not currently collect sales tax for the sale of water service. Must I now collect WET?
A: It depends. Only sales of water service for compensation are taxable. Any sales of water that may be included in a comprehensive total price in a larger sale are taxable. Water service that is freely available to the public at no cost or compensation, and no requirement that users be customers, is not subject to WET.
Example: Campground A charges $10 per night for its campsites, which includes access to water service. Campground A only grants access to that water for paying customers. Campground A is therefore making sales of water service for compensation, and must separately collect and remit WET on that portion of the $10 per-night campsite fee that is charged for water service.
Example: Campground B charges $10 per night for its campsites, and on the premises provides access to water service for the public; any member of the public, whether they are a paying customer or not, may use the water service as desired. No portion of Campground B’s $10 per-night campsite fee would be subject to WET.
Example: Campground C charges $10 per night for its campsites, and on the premises provides access to water service for the public; any member of the public, whether they are a paying customer or not, may use the water service as desired. For an additional charge of $5 per night, Campground C offers access to additional water and sewage services that are only available to those customers who pay for those additional services. Campground C’s $10 per-night campsite fee would not be subject to WET, however Campground C must separately collect and remit WET on that portion of the $5 additional per-night campsite fee that is charged for water service.
Q: I currently sell water to my customers, but I do not list it as a separate item. Does this mean I am not required to collect and remit WET?
A: No, you are still subject to WET. Beginning July 1, 2018, water utilities must separate WET from sales tax for collection and remittance to the Department beginning July 1, 2018. By January 1, 2019, WET must be separately itemized and stated on all bills and receipts, and must be identified separately from any other taxes collected, if any. The Department will not monitor how water utilities decide to separately collect and remit WET prior to January 1, 2019.
If a seller fails to separate out the sale of water service from the sale of other tangible personal property or enumerated services, the Department will assume that the cost for the sale of water service subject to WET is a pro rata portion of the total bundled sales price.
Example: A water utility sells combined water and sewage services for $50 per month. The water utility does not bill its customers separately for the sale of water service, and only remits to the Department sales tax on the $50. The Department will assume that the cost of water service is $25 and the cost of sewage service is $25, and the water utility will be billed accordingly.
Example: A water utility is a campground that provides the following services for $20 per night: campground access, electricity, sewage, water, and trash removal. The water utility does not bill its customers separately for any of these services, and only remits to the Department sales tax on the $20. The Department will assume that the cost of each of the five services is $4 (total cost of $20 divided by five separate services = $4 per service), and the water utility will be billed accordingly.
Where a water utility provides an optional water service that is bundled with a non-water service in a single transaction to its customers, and which is purchasable at an additional cost above a base-cost for other sales, the pro rata calculation will only apply to the additional cost for the bundled water service sale.
Example: A water utility sells varying service packages for different prices per day as follows:
If the water utility makes sales of Package C, the water utility must only collect and remit water service excise tax on $5—the pro rata cost of water service included in the bundled water service sale.
To make sure the cost of water service is accurately reflected on all filings with the Department, all water utilities should properly identify the cost of water service on all bills and receipts.
Importantly, if a water utility does not itemize the sale of water service as described above, and receives a billing from the Department, the water utility may have an opportunity to submit supporting documentation showing the correct cost of water service charged to its customers, and the Department may adjust the billing as appropriate.
Q: I charge a minimum cost for water service, regardless of whether the consumer uses that service in a given billing period. Is that cost subject to WET?
A: Yes, the minimum charge for water service is subject to WET. WET is an excise tax on the provision of water service, not only on the metered sale of water. If the minimum charge is for the service itself, then it is subject to WET.
Q: I bill my customers on a cycle that does not begin on the first of the month. Therefore, the billing period spans across the WET effective date of July 1, 2018. How should I handle this billing?
A: The billing rules for changes in the rate of sales tax on water found in Iowa Administrative Code Rule 701—14.3(9) apply with respect to the switch from sales tax to the water service excise tax. Refer to this rule and the accompany examples to determine how to handle billing periods that span across July 1, 2018.
Q: It appears that I should have been collecting sales tax on the sale of water piped for compensation previously but I have not. What do I need to do to get into compliance?
A: You should apply for a Sales Tax Permit and file past returns with your sales information and the amount of tax due. You should also pay any tax, penalty, and interest that is due. You may be a candidate to utilize our voluntary disclosure program. More information about this program can be located here.
Q: How do I determine my filing frequency for filing and paying WET?
A: The same criteria for determining your filing frequency for sales tax apply to determining your filing frequency for WET. WET filing and payments are handled through the Iowa Department of Revenue eFile & Pay system, found here.