Newcastle, CA Property Tax Rate (FY 2026-27)
Newcastle's property tax rate is 1.0725% for fiscal year 2026-27 in its primary tax rate area: the 1% Proposition 13 base plus 0.0725% in voter-approved bonds.
First-year property tax by purchase price
Under Proposition 13 the purchase price becomes the assessed value, so the first-year tax at the city rate is the price times 1.0725%. Fixed assessments come on top. Your true tax rate is the two together, the tax at the city rate plus fixed assessments, divided by the purchase price on a newly purchased home.
| Purchase price | Annual tax | Monthly |
|---|---|---|
| $500,000 | $5,362.71 | $446.89 |
| $750,000 | $8,044.07 | $670.34 |
| $1,000,000 | $10,725.43 | $893.79 |
| $1,500,000 | $16,088.14 | $1,340.68 |
| $2,000,000 | $21,450.86 | $1,787.57 |
Property tax calculator
Search for a city, then change the price, rate or fixed assessments to estimate a first-year bill. It uses the same math as Mortgage Blueprint's tax breakdown.
What this rate leaves out
- This is the rate for Newcastle's primary tax rate area. Other tax rate areas in the same city can have a different rate.
- Mello-Roos (Community Facilities District) taxes, flat parcel taxes and fixed special assessments are not included. Check the property's tax bill.
- Buyers get a supplemental tax bill after purchase for the change in assessed value.
- Under Proposition 13, the assessed value can rise by at most 2% a year while you own the home.
Look up a tax bill
Look up your Placer County property tax bill on the Placer County Treasurer-Tax Collector site. Placer County property tax rates and due dates.
Loan limits
Newcastle is in Placer County, where the 2026 conforming loan limit for a one-unit home is $832,750. Placer County loan limits.
Other cities in Placer County
| City or community | Tax rate (FY 2026-27) |
|---|---|
| Auburn | 1.0743% |
| Colfax | 1.0574% |
| Foresthill | 1.0574% |
| Granite Bay | 1.0243% |
| Lincoln | 1.0416% |
| Loomis | 1.0725% |
| Meadow Vista | 1.0574% |
| North Auburn | 1.0743% |
| Penryn | 1.0725% |
| Rocklin | 1.0909% |
| Roseville | 1.0328% |
| Sheridan | 1.0416% |
Source
Rate from Placer County Property Tax Rates for 2026/27 (Resolution Nos. 2026-186 and 2026-198), Tax Rate Schedule. All California city rates.