Mountain View, CA tax rates cover several layers: a 9.125% combined sales tax, a property tax that runs roughly 1.1% to 1.25% of assessed value once local bonds are added, a 10% hotel occupancy tax, an annual business license tax scaled to employee count, and a documentary transfer tax that starts at $3.30 per $1,000 of sale price and jumps to $15 per $1,000 on sales of $6 million or more.
Sales and Use Tax
The combined sales tax rate in Mountain View is 9.125% as of January 1, 2026.1California Department of Tax and Fee Administration. California City and County Sales and Use Tax Rates That total stacks the statewide base rate of 7.25% with 1.875% in district taxes approved by Santa Clara County voters. Retailers collect the full amount and remit it to the California Department of Tax and Fee Administration, which sends a portion back to the city’s general fund.
Not everything at the register is taxed. California exempts most grocery food purchased for home consumption, prescription medicine, and sales to the federal government.2California Department of Tax and Fee Administration. Sales and Use Tax Regulations – Article 8 Hot prepared food, carbonated beverages, and food sold for eating on the premises are taxable. Nonprofits do not get a blanket pass; they may qualify for narrow exemptions on specific transactions but still owe sales tax on most purchases.3Taxes. Nonprofit/Exempt Organizations
Use Tax on Out-of-State Purchases
When you buy something from a seller that does not collect California sales tax, you owe a matching use tax at the same 9.125% rate. That covers online orders from out-of-state retailers, private-party sales, and goods bought while traveling. Most people report and pay it on their California income tax return using the worksheet or lookup table.4California Department of Tax and Fee Administration. California Use Tax, Good for You. Good for California Vehicles, vessels, and aircraft are the exception and get reported directly to the CDTFA.
Property Tax
California’s Proposition 13 caps the base property tax rate at 1% of assessed value.5California Legislative Information. California Constitution – Article XIII A – Tax Limitation No Mountain View homeowner pays exactly 1%, though. Voter-approved bond measures and special assessments push the effective rate to roughly 1.1% to 1.25%, depending on the tax rate area your property sits in. School bonds, the Shoreline Regional Park District, and other local levies each add a slice.
Assessed value is not the same as market value. The county assessor sets the base-year value at your purchase price. After that, assessed value can increase by no more than 2% per year regardless of what the market does. A change in ownership or new construction triggers reassessment at current market value. That 2% cap is why a longtime Mountain View owner might pay tax on a $400,000 assessment while a recently sold house next door sits at $2 million.
Parcel Taxes
Parcel taxes ride on top of the ad valorem bill. The Mountain View Whisman School District renewed a parcel tax in November 2024 at $0.15 per square foot of building area, capped at $1,750 per parcel and $25 for unimproved parcels, for an eight-year term. Senior exemptions are available. Because voters approved these as special taxes, they bypass the 1% Proposition 13 cap.
Payment Deadlines and Penalties
The Santa Clara County Department of Tax and Collections mails annual bills in October. The first installment is due November 1 and becomes delinquent after December 10, which triggers a 10% penalty. The second installment is due February 1 and becomes delinquent after April 10, adding another 10% penalty plus a small administrative fee. Autopay through the county portal is the simplest way to avoid missing either date.
Real Property Transfer Tax
When real estate changes hands in Mountain View, the buyer or seller (whichever the contract specifies) owes a documentary transfer tax. The standard rate is $3.30 per $1,000 of sale price.6Santa Clara County Clerk-Recorder. Measure G A $2 million home generates $6,600 in transfer tax at that rate.
Sales of $6 million or more hit a much higher rate under Measure G: $15 per $1,000 of the total sale price.6Santa Clara County Clerk-Recorder. Measure G A $6 million sale owes $90,000 under Measure G rather than the $19,800 it would owe at the standard rate. On commercial deals and high-end residential sales, this threshold shapes closing-cost negotiations.
Business License Tax
Every business operating in Mountain View owes an annual business license tax under City Code Chapter 18.7Mountain View, CA. Business Licenses Voters restructured the tax through Measure P in November 2018, moving from a flat fee to a progressive system based on headcount, effective October 1, 2019.
Small businesses with 50 or fewer employees pay a flat registration and licensing fee of roughly $100 to $400, scaled by size. Businesses with more than 50 employees pay a higher flat fee plus a per-employee tax ranging from $75 to $150 per head, with larger companies paying more per worker. Employers over 5,000 employees face substantial combined obligations. Headcount is based on the average number of employees reported to the state Employment Development Department over the prior four quarters, and full-time and part-time workers both count, converted to full-time equivalents.
The tax is due January 1 each year. Getting the headcount wrong is one of the more common compliance mistakes, particularly for businesses with seasonal staffing swings.
Transient Occupancy Tax
Guests staying in Mountain View hotels, motels, or short-term rentals for 30 consecutive days or fewer owe a transient occupancy tax of 10% of the room rate.8Mountain View, CA. Transient Occupancy Tax (TOT) The guest pays it, but the operator or host is legally responsible for collecting and remitting it to the city, and every hotel and short-term rental must register with the city first.
The 10% applies to the rent charged, not the after-tax total. Once a guest’s stay passes 30 consecutive days at the same property, the occupancy becomes residential and the tax stops applying going forward. On a $200-per-night room, that shift saves about $600 per month, which matters for extended corporate stays or temporary relocations.
Federal Deduction for These Taxes
If you itemize on your federal return, you can deduct state and local taxes: California income tax (or sales tax, not both), property taxes, and personal property taxes.9Internal Revenue Service. New and Enhanced Deductions for Individuals The Tax Cuts and Jobs Act capped the SALT deduction at $10,000 from 2018 through 2024. The One Big Beautiful Bill Act raised the cap to $40,400 for the 2026 tax year, or $20,200 for married filing separately, with a phase-down starting at modified adjusted gross income above $505,000.
For Mountain View homeowners paying both California income tax and property tax, the old $10,000 cap was almost always binding. The higher ceiling gives most filers real breathing room, though high earners can still hit the phase-down. Keep records of property tax payments and California income or sales tax paid so you can claim the full amount available to you.