South Pasadena mortgage calculator
What a South Pasadena mortgage costs each month, how long it runs, what it costs in total, and how much sooner it ends if you pay a little more. Built on monthly compounding and the 30-year fixed loan, and in this bay the insurance and flood lines have moved faster since 2024 than the payment ever will.
Calculator
The purchase
20.0% down. The minimum on this price is $8,896. At 20% or more there is no mortgage insurance.
A US lender qualifies you on debt-to-income rather than at a stress-test rate, so this payment is the payment. What varies is the rate you are quoted: credit score, points paid at closing and the lender itself move it by more than half a point.
The contract length, not the amortization. At the end of it you renew at whatever rates are then available.
Paying it down faster
Most lenders cap annual prepayments at 10–20% of the original principal, and charge a penalty above it. Check your own commitment before planning around a large lump sum.
Where the money goes, year by year
Early payments are almost all interest. The crossover (the year principal finally exceeds interest) is the real shape of an amortized loan, and it is much later than most people expect.
Show the first two years of the schedule
| Payment | Amount | Interest | Principal |
|---|---|---|---|
| 1 | $1,526.00 | $1,318.54 | $207.46 |
| 2 | $1,526.00 | $1,317.39 | $208.61 |
| 3 | $1,526.00 | $1,316.23 | $209.77 |
| 4 | $1,526.00 | $1,315.06 | $210.94 |
| 5 | $1,526.00 | $1,313.89 | $212.11 |
| 6 | $1,526.00 | $1,312.71 | $213.29 |
| 7 | $1,526.00 | $1,311.53 | $214.47 |
| 8 | $1,526.00 | $1,310.33 | $215.67 |
| 9 | $1,526.00 | $1,309.14 | $216.86 |
| 10 | $1,526.00 | $1,307.93 | $218.07 |
| 11 | $1,526.00 | $1,306.72 | $219.28 |
| 12 | $1,526.00 | $1,305.50 | $220.50 |
| 13 | $1,526.00 | $1,304.27 | $221.73 |
| 14 | $1,526.00 | $1,303.04 | $222.96 |
| 15 | $1,526.00 | $1,301.80 | $224.20 |
| 16 | $1,526.00 | $1,300.56 | $225.44 |
| 17 | $1,526.00 | $1,299.30 | $226.70 |
| 18 | $1,526.00 | $1,298.04 | $227.96 |
| 19 | $1,526.00 | $1,296.78 | $229.22 |
| 20 | $1,526.00 | $1,295.50 | $230.50 |
| 21 | $1,526.00 | $1,294.22 | $231.78 |
| 22 | $1,526.00 | $1,292.93 | $233.07 |
| 23 | $1,526.00 | $1,291.64 | $234.36 |
| 24 | $1,526.00 | $1,290.33 | $235.67 |
Derived from the figures above, not a lender's statement. A real schedule also depends on your closing date and the lender's rounding.
An estimate from published figures, not a lender quote.
The payment is often the smaller half of the monthly cost here
Principal and interest is what this calculator computes. On the typical South Pasadena house your lender will escrow roughly $396 a month in property tax: the 1.60% a homesteaded buyer pays out of 18.6422 mills charged, and about $390 a month in homeowners insurance. That insurance figure is the single largest uncertainty on this page and the reason a Pinellas County purchase can fail underwriting on a payment that looked comfortable.
Florida taxes the loan, not just the deed
The documentary stamp tax on the deed, at 70 cents per $100, is the seller's by convention in both these counties. What is the buyer's is a second documentary stamp on the promissory note at 0.35% and a non-recurring intangible tax on the mortgage at 0.2%: both charged on the amount borrowed rather than the price. On this house that is $1,305 at 20% down and $1,549 at 5% down. It is one of the few closing costs that gets larger the less you put down, and it is cash at the table rather than part of the payment.
PMI is the number to watch, not the rate
Below 20% down the lender adds private mortgage insurance, which insures the lender rather than you. Federal law makes them terminate it once the scheduled balance first reaches 78% of the purchase price, and you can ask for cancellation at 80% if you are current. The calculator shows the exact month rather than averaging the premium across the loan, and the month moves when you add extra principal, because the trigger is the amortization schedule rather than what the house is worth.
Monthly compounding, and why the Canadian number would be wrong
An American fixed-rate mortgage compounds monthly: the periodic rate is the annual rate divided by twelve. Canadian mortgages compound twice a year, which makes the same nominal rate slightly cheaper. This site runs both conventions and no page borrows the other country's arithmetic.
What this cannot tell you
Homeowners insurance does not cover flood, and in Tampa Bay that distinction did the damage. Hurricane Helene put the largest storm surge on record into this bay in September 2024, over six feet in St. Petersburg and more than seven on the barrier islands, and Milton followed two weeks later. Flood is a separate policy, the elevation certificate is the document that prices it, and FEMA's substantial improvement rule can force a full elevation on what looks like an ordinary repair. The figure on this page is homeowners insurance only. None of this includes a community development district assessment. A CDD is a special-purpose government that borrows to build a master-planned community's roads, drainage and amenities and repays the bonds through a non-ad-valorem line on your tax bill. Commonly $1,200 to $3,000 a year in the newer parts of Florida. It is in no millage, it is not in any figure here, and it is the first thing to check on a new-build address. It also cannot tell you what a flood policy will cost, what an elevation certificate will show, or what an insurer will quote on the specific structure (roof age, construction, opening protection and flood zone move that figure by multiples) or what the property appraiser will assess the house at in the January after you buy, which will be your purchase price rather than the seller's capped assessment. For the full comparison against renting, use the rent versus buy calculator.
Sources
- Zillow Home Value Index (ZHVI), all homes, mid-tier, smoothed and seasonally adjusted: city file, June 2026 · Zillow Research · retrieved Supports: A typical home value for each municipality, computed on one method across all twenty-four, The same series and month the Charlotte, Orlando, Palm Beach and Miami pages use, Year-over-year change to June 2026, which is negative in twenty-three of the twenty-four
- Zillow Observed Rent Index (ZORI), all homes, smoothed: city file, June 2026 · Zillow Research · retrieved Supports: Asking rents for the seventeen municipalities Zillow indexes
- Final 2025 millage rates by taxing district · Hillsborough County Property Appraiser · retrieved Supports: Published totals of 19.8428 for Tampa, 19.5319 for Temple Terrace, 18.2926 for Plant City and 18.2515 for the unincorporated county, Every component behind them, including the 0.5583 library services levy Temple Terrace and Plant City are outside and the 0.5000 transit authority levy Plant City is outside, A county General Purpose MSTU of 4.6163 paid in the unincorporated area in place of a municipal rate
- Millage rates levied for 2025 taxes · Pinellas County Tax Collector · retrieved Supports: A published real estate total for every taxing district in Pinellas County, from Redington Shores at 15.1568 to Belleair at 20.4449, including St Petersburg at 19.9197 and Belleair Beach at 15.4466, Countywide components: general fund 4.5423, health department 0.0713, emergency medical services 0.8050 and school 6.2930, Other districts totalling 1.0256: planning council 0.0175, Juvenile Welfare Board 0.8250 and the Southwest Florida Water Management District 0.1831, The Transit District at 0.7300 and which districts are inside it, and the Pinellas Suncoast Fire District at 0.6700 and which are inside that
- Table 1: Comparison of Taxes Levied, county and municipal governments, fiscal years 2024-25 and 2025-26 · Florida Department of Revenue, Property Tax Oversight · retrieved Supports: Independent confirmation of each municipality's own adopted 2025-26 levy in both counties
- Annual estimates of the resident population for incorporated places, 2020 to 2024 · United States Census Bureau, Population Estimates Program · retrieved Supports: 2020 census counts and 2024 estimates for each municipality, Tampa at 414,547 and St. Petersburg at 267,102; Indian Shores at 1,190
- Hurricane Helene storm surge and Pinellas County flooding, September 2024 · Latent Insurance, on National Weather Service and Pinellas County data · retrieved Supports: The largest storm surge on record for St. Petersburg, over six feet in the city and more than seven on the barrier islands, Thousands of Pinellas homes flooded, many of which had never flooded before, St. Petersburg single-family homeowners insurance of roughly $3,900 to $5,500 a year with wind coverage, and higher on the barrier islands
- Home insurance in Tampa, Florida: 2026 rates · InsuranceQuotes · retrieved Supports: Tampa homeowners insurance averaging about $2,400 a year in 2026, A Tampa Bay range of roughly $3,285 to $5,100 across Hillsborough, Pinellas and Pasco
- Primary Mortgage Market Survey · Freddie Mac · retrieved Supports: 30-year fixed-rate mortgage averaging 6.67%
- Documentary stamp tax · Florida Department of Revenue · retrieved Supports: 70 cents per $100 on a deed, in every county except Miami-Dade, which charges 60 cents plus a 45-cent surtax, 35 cents per $100 on a promissory note or other written obligation to pay money
- Governmental leasehold intangible personal property tax and the non-recurring intangible tax on mortgages · Florida Department of Revenue · retrieved Supports: A non-recurring intangible tax of 2 mills: 0.2%, on the obligation secured by a mortgage on Florida real property
- Property tax exemptions and additional benefits · Florida Department of Revenue · retrieved Supports: A $25,000 homestead exemption applying to all taxing authorities and a second slice, $25,000 in the 2024 base year and adjusted for inflation each 1 January since, applying to all but the school district, The Save Our Homes assessment limitation of 3% or the change in CPI, whichever is lower, Portability of up to $500,000 of accrued Save Our Homes benefit to a new homestead, The 1 March filing deadline
- Chapter 2023-17, Laws of Florida: preemption of rent control · The Florida Senate · retrieved Supports: The repeal of the referendum exception that had allowed a local rent control ordinance in a declared housing emergency
These are estimates built from published figures, not a lender quote, a pre-approval or financial advice. Rates, premiums and state and federal rules change; confirm anything you plan to act on with a mortgage professional and read the sourcing methodology.