Ken Lam Realty · Tools

How much property tax will I pay after I buy?

Enter your price and close date. See the supplemental bill nobody warns you about, your regular bill, and when each is due.

County

City (optional)

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Purchase price

Close date

Seller's assessed value (on their tax bill)

Tax rate (edit if you know it)

Will you live there? (homeowners’ exemption, -$7,000 of value)

Tax bills in your first year

1 · Supplemental bill

2 · Regular yearly bill

3 · Regular bill due dates after you close

Have an impound (escrow) account? Your lender pays the regular bill. It does not pay the supplemental bill. That one comes to you.

The current year’s regular bill (at the seller’s value) is split with the seller in escrow. Check your closing statement. It is not counted above.

4 · Prop 13: next 5 years (max)

Tax year	Assessed value	Tax / yr	/ mo

Assessed value can go up 2% a year at most (2026–27 factor: 1.02). New voter bonds can still move the rate.

Many people get this wrong: “My lender pays the supplemental bill.” No. Lenders never get it, even with an impound account. It’s mailed to you, months after closing, and late payment is 10%.

Next steps

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Or text: 408-666-2825