San Miguel, CA Property Tax Rate (FY 2026-27)
San Miguel's property tax rate is 1.1038% for fiscal year 2026-27 in its primary tax rate area: the 1% Proposition 13 base plus 0.1038% 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 1.1038%. 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 | $5,519.00 | $459.92 |
| $750,000 | $8,278.50 | $689.88 |
| $1,000,000 | $11,038.00 | $919.83 |
| $1,500,000 | $16,557.00 | $1,379.75 |
| $2,000,000 | $22,076.00 | $1,839.67 |
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 San Miguel'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 Contra Costa County property tax bill on the Contra Costa County Treasurer-Tax Collector site. Contra Costa County property tax rates and due dates.
Loan limits
San Miguel is in Contra Costa County, where the 2026 conforming loan limit for a one-unit home is $1,249,125. Contra Costa County loan limits.
Other cities in Contra Costa County
| City or community | Tax rate (FY 2026-27) |
|---|---|
| Alamo | 1.0957% |
| Alhambra Valley | 1.1526% |
| Antioch | 1.0498% |
| Bay Point | 1.1038% |
| Bayview | 1.2746% |
| Blackhawk | 1.0957% |
| Brentwood | 1.1071% |
| Byron | 1.0995% |
| Camino Tassajara | 1.0957% |
| Castle Hill | 1.0970% |
| Clayton | 1.1038% |
| Clyde | 1.1038% |
| Concord | 1.1038% |
| Crockett | 1.1027% |
| Danville | 1.0957% |
| Diablo | 1.0957% |
| Discovery Bay | 1.0995% |
| East Richmond Heights | 1.2746% |
| El Cerrito | 1.2746% |
| El Sobrante | 1.2746% |
| Hercules | 1.2746% |
| Kensington | 1.2746% |
| Knightsen | 1.0593% |
| Lafayette | 1.0833% |
| Martinez | 1.1691% |
| Montalvin Manor | 1.2746% |
| Moraga | 1.1132% |
| Norris Canyon | 1.0957% |
| North Gate | 1.1038% |
| North Richmond | 1.2746% |
| Oakley | 1.0903% |
| Orinda | 1.1415% |
| Pinole | 1.2746% |
| Pittsburg | 1.1346% |
| Pleasant Hill | 1.1167% |
| Port Costa | 1.1027% |
| Richmond | 1.4146% |
| Rodeo | 1.1027% |
| San Pablo | 1.2746% |
| San Ramon | 1.0957% |
| Saranap | 1.0970% |
| Tara Hills | 1.2746% |
| Vine Hill | 1.1526% |
| Walnut Creek | 1.0970% |
Source
Rate from Contra Costa Treasurer-Tax Collector, 2026-27 secured tax bills by TRA. All California city rates.
See San Miguel's taxes in your payment in Mortgage Blueprint