Does a Hot Tub or Spa Increase Property Taxes?

It depends on how it is installed. A built-in spa is a permanent improvement to the property. A portable hot tub sitting on a pad is a different question, and many assessors do not track it. Practice varies by county.

What the Rules Say

California's Board of Equalization lists "adding a garage, swimming pool, spa, patio, or deck" as new construction (California State Board of Equalization, new construction guidance). The page does not address portable tubs, so ask your assessor how they are treated locally. Other states have their own definitions.

What Tends to Matter

• Built-in or attached. An in-ground spa or one built into a deck is more likely to be recorded. See our patio and deck guide and pool guide.
• Permits. In-ground spas and added electrical service usually need permits, which become public records. The BOE also lists upgrading the capacity of electrical systems as new construction.
• Size of the change. A spa is a small item next to a pool, so any added value is usually modest. Your county's own cost tables decide.

If Your Assessment Went Up

Request your property record card and see whether a spa or pool feature was added. If it lists one you don't have, or lists a pool where you have a spa, that's a record error worth raising.

How to Check What Your County Actually Did

Pull your property record card (search "[your county] assessor property search") and compare the square footage, features, and year-built fields against what you really have. Our guide to finding and checking your property record card walks through it. If the card lists something you don't have, that's an error worth correcting regardless of what the work cost.

Related Reading

• What Home Improvements Increase Property Taxes? The Complete Guide
• Does a Building Permit Trigger a Property Tax Reassessment?
• Does a Patio or Deck Increase Property Taxes?
• Does a New Roof Increase Property Taxes?

We're a research tool, not attorneys or a tax firm, and the rules vary by state and county. Your assessor's office has the final word on how your own property is treated.

Added a spa and wondering if the new assessment is fair? Grove Hopper's free check compares your property's assessment against real comparable sales in your area in a couple of minutes.