Annual and monthly tax at the rate applied. Verify locally.
Measure
Value
Assessed value
300,000
Rate applied
1.10%
Annual tax
3,300
Monthly tax
275
Estimates only — not financial, tax, or professional advice.
100% private — every number you enter is calculated in your browser and never sent to our servers.
What it calculates: Property Tax (Selected Period), Annual Property Tax, Monthly Property Tax, Effective Rate.
Updated 5 June 2026 · Transparent assumptions
Tax is charged on the assessment, not on what the house is worth
A 1.1% rate on a $300,000 assessed value is $3,300 a year, or $275 a month. The important word is assessed: most jurisdictions tax a value set by an assessor, which can sit well below market value, be capped in how fast it may rise, or be reassessed only every few years.
That gap has consequences. A long-held property can carry an assessment far below what it would sell for, and a sale often triggers reassessment to market — so a buyer inherits a tax bill materially higher than the seller was paying. Checking the current assessment against the likely post-sale assessment is a standard and frequently skipped step.
A mortgage ends; property tax does not
Unlike the mortgage, property tax continues for as long as you own the property, and it rises. A household that paid off its mortgage still owes $275 a month here, indexed upward by reassessments and rate changes over decades, which is the reason property tax is a retirement planning issue rather than a purchase-time one.
It is also why a low purchase price in a high-tax jurisdiction can be more expensive over twenty years than a higher price in a low-tax one. Comparing total cost of ownership rather than purchase price is the only way to see it, and property tax is usually the largest line in that difference.
State, county, city, school district and special levies all stack
The rate entered here is typically a combined figure. In most US jurisdictions the bill is the sum of separate levies from county, municipality, school district and any special assessment district, each set independently. Two properties a mile apart can face materially different combined rates because one sits in a different school district.
Across countries the structure differs entirely: some systems tax a banded valuation rather than a percentage, others tax land rather than buildings, and several apply relief for a primary residence, for older owners, or for long-held properties. Enter the combined effective rate that applies to your own property rather than a headline figure.
Exemptions, caps, and anything billed alongside the tax
Homestead exemptions, senior and veteran relief, and assessment caps all reduce the effective rate below the headline figure, sometimes substantially, and none is modelled here. Where they apply, computing tax on the full assessed value overstates the bill.
Special assessments for infrastructure, HOA dues and any municipal service charges billed alongside the tax are outside it as well. For a purchase decision, ask for the actual current bill and the assessment history rather than computing from a rate — the bill is a fact and the rate is an approximation of it.
Sources & References
Figures on this page are checked against primary, authoritative sources. Links open in a new tab.
Tax rules vary by country, state, tax year, filing status, income type, deductions, and exemptions. This calculator is educational and uses the values you enter. Always verify final tax treatment with official sources or a qualified tax professional.
Published the calculator with its formula, worked example, assumptions, limitations and a bespoke guide, and added an automated formula test suite covering it.
Tested that the monthly figure is exactly a twelfth of the annual one and that the effective rate reproduces the rate entered.
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