Property Tax Calculator
Understand your property tax obligation with this comprehensive calculator. Enter your home's assessed value, local tax rate, and applicable exemptions to see your estimated annual and monthly property tax. Compare how taxes differ by location and see the impact of various exemptions. Great for homebuyers, real estate agents, and financial planners.
Try the Calculator
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export function propertyTaxCalculator(form: FormTs) {
form.addRow(row => {
row.addTextPanel('header', {
computedValue: () => 'Property Tax Calculator',
customStyles: { 'font-size': '1.5rem', 'font-weight': '600', 'color': '#1e293b' }
});
});
form.addSpacer({ height: 20 });
// Property Value Section
const propertySection = form.addSubform('property', { title: '🏠 Property Value' });
propertySection.addRow(row => {
row.addMoney('marketValue', {
label: 'Market Value',
min: 0,
max: 50000000,
defaultValue: 350000,
currency: '$',
isRequired: true,
tooltip: 'Estimated fair market value of your property'
}, '1fr');
row.addDropdown('propertyType', {
label: 'Property Type',
options: [
{ id: 'single-family', name: 'Single Family Home' },
{ id: 'condo', name: 'Condo/Townhouse' },
{ id: 'multi-family', name: 'Multi-Family (2-4 units)' },
{ id: 'vacant', name: 'Vacant Land' },
{ id: 'commercial', name: 'Commercial Property' }
],
defaultValue: 'single-family'
}, '1fr');
});
propertySection.addRow(row => {
row.addDropdown('assessmentRatio', {
label: 'Assessment Ratio',
options: [
{ id: '100', name: '100% of Market Value' },
{ id: '80', name: '80% of Market Value' },
{ id: '70', name: '70% of Market Value' },
{ id: '60', name: '60% of Market Value' },
{ id: '50', name: '50% of Market Value' },
{ id: '40', name: '40% of Market Value' },
{ id: 'custom', name: 'Custom Ratio' }
],
defaultValue: '100',
tooltip: 'Assessed value as percentage of market value (varies by location)'
}, '1fr');
row.addDecimal('customRatio', {
label: 'Custom Assessment Ratio (%)',
min: 1,
max: 100,
defaultValue: 85,
isVisible: () => propertySection.dropdown('assessmentRatio')?.value() === 'custom'
}, '1fr');
});
propertySection.addRow(row => {
row.addTextPanel('assessedValue', {
label: 'Assessed Value',
computedValue: () => {
const marketValue = propertySection.money('marketValue')?.value() || 350000;
const ratioOption = propertySection.dropdown('assessmentRatio')?.value() || '100';
const ratio = ratioOption === 'custom'
? (propertySection.decimal('customRatio')?.value() || 85) / 100
: parseInt(ratioOption) / 100;
return `$${Math.round(marketValue * ratio).toLocaleString()}`;
},
customStyles: { 'font-size': '1.2rem', 'font-weight': '600', 'color': '#059669' }
});
});
// Tax Rate Section
const taxSection = form.addSubform('tax', { title: '📊 Tax Rate' });
taxSection.addRow(row => {
row.addRadioButton('rateInput', {
label: 'Enter Rate As',
options: [
{ id: 'percentage', name: 'Percentage' },
{ id: 'mills', name: 'Mill Rate' },
{ id: 'per-thousand', name: 'Per $1,000' }
],
defaultValue: 'percentage'
});
});
taxSection.addRow(row => {
row.addDecimal('taxRatePercent', {
label: 'Tax Rate (%)',
min: 0,
max: 10,
defaultValue: 1.2,
isVisible: () => taxSection.radioButton('rateInput')?.value() === 'percentage',
tooltip: 'Annual property tax rate as percentage'
}, '1fr');
row.addDecimal('millRate', {
label: 'Mill Rate',
min: 0,
max: 100,
defaultValue: 12,
isVisible: () => taxSection.radioButton('rateInput')?.value() === 'mills',
tooltip: 'Mills per dollar of assessed value (1 mill = $1 per $1,000)'
}, '1fr');
row.addMoney('perThousand', {
label: 'Rate per $1,000',
min: 0,
max: 100,
defaultValue: 12,
currency: '$',
isVisible: () => taxSection.radioButton('rateInput')?.value() === 'per-thousand',
tooltip: 'Tax per $1,000 of assessed value'
}, '1fr');
});
taxSection.addRow(row => {
row.addTextPanel('effectiveRate', {
label: 'Effective Tax Rate',
computedValue: () => {
const rateInput = taxSection.radioButton('rateInput')?.value() || 'percentage';
let rate = 0;
if (rateInput === 'percentage') {
rate = taxSection.decimal('taxRatePercent')?.value() || 1.2;
} else if (rateInput === 'mills') {
rate = (taxSection.decimal('millRate')?.value() || 12) / 10;
} else {
rate = (taxSection.money('perThousand')?.value() || 12) / 10;
}
return `${(Number(rate) || 0).toFixed(3)}%`;
},
customStyles: { 'font-size': '1.1rem', 'font-weight': '500', 'color': '#2563eb' }
});
});
// Exemptions Section
const exemptionsSection = form.addSubform('exemptions', { title: '✨ Exemptions & Deductions' });
exemptionsSection.addRow(row => {
row.addCheckbox('homestead', {
label: 'Homestead Exemption',
defaultValue: false,
tooltip: 'Primary residence exemption (varies by state)'
}, '1fr');
row.addDropdown('homesteadAmount', {
label: 'Exemption Amount',
options: [
{ id: '25000', name: '$25,000' },
{ id: '40000', name: '$40,000' },
{ id: '50000', name: '$50,000' },
{ id: '75000', name: '$75,000' },
{ id: '100000', name: '$100,000' },
{ id: 'custom', name: 'Custom Amount' }
],
defaultValue: '50000',
isVisible: () => exemptionsSection.checkbox('homestead')?.value() === true
}, '1fr');
});
exemptionsSection.addRow(row => {
row.addMoney('customHomestead', {
label: 'Custom Exemption Amount',
min: 0,
max: 500000,
defaultValue: 50000,
currency: '$',
isVisible: () => exemptionsSection.checkbox('homestead')?.value() === true &&
exemptionsSection.dropdown('homesteadAmount')?.value() === 'custom'
});
});
exemptionsSection.addRow(row => {
row.addCheckbox('seniorExemption', {
label: 'Senior Citizen Exemption',
defaultValue: false,
tooltip: 'Additional exemption for seniors 65+'
}, '1fr');
row.addMoney('seniorAmount', {
label: 'Senior Exemption Amount',
min: 0,
max: 100000,
defaultValue: 10000,
currency: '$',
isVisible: () => exemptionsSection.checkbox('seniorExemption')?.value() === true
}, '1fr');
});
exemptionsSection.addRow(row => {
row.addCheckbox('veteranExemption', {
label: 'Veteran/Disabled Exemption',
defaultValue: false
}, '1fr');
row.addMoney('veteranAmount', {
label: 'Veteran Exemption Amount',
min: 0,
max: 500000,
defaultValue: 25000,
currency: '$',
isVisible: () => exemptionsSection.checkbox('veteranExemption')?.value() === true
}, '1fr');
});
exemptionsSection.addRow(row => {
row.addMoney('otherExemptions', {
label: 'Other Exemptions',
min: 0,
max: 500000,
defaultValue: 0,
currency: '$',
tooltip: 'Any additional exemptions (agricultural, historical, etc.)'
});
});
// Special Assessments Section
const assessmentsSection = form.addSubform('assessments', { title: '📋 Special Assessments' });
assessmentsSection.addRow(row => {
row.addMoney('specialAssessments', {
label: 'Special District Assessments',
min: 0,
max: 50000,
defaultValue: 0,
currency: '$',
tooltip: 'Additional assessments (schools, fire, water, etc.)'
}, '1fr');
row.addMoney('hoaFees', {
label: 'HOA/Mello-Roos (Annual)',
min: 0,
max: 50000,
defaultValue: 0,
currency: '$',
tooltip: 'Not technically property tax but included in escrow'
}, '1fr');
});
form.addSpacer({ height: 20, showLine: true, lineStyle: 'dashed' });
// Results Section
const resultsSection = form.addSubform('results', { title: '📊 Tax Calculation', isCollapsible: false });
const calculateTax = () => {
const marketValue = propertySection.money('marketValue')?.value() || 350000;
const ratioOption = propertySection.dropdown('assessmentRatio')?.value() || '100';
const ratio = ratioOption === 'custom'
? (propertySection.decimal('customRatio')?.value() || 85) / 100
: parseInt(ratioOption) / 100;
const assessedValue = marketValue * ratio;
// Get tax rate as decimal
const rateInput = taxSection.radioButton('rateInput')?.value() || 'percentage';
let taxRate = 0;
if (rateInput === 'percentage') {
taxRate = (taxSection.decimal('taxRatePercent')?.value() || 1.2) / 100;
} else if (rateInput === 'mills') {
taxRate = (taxSection.decimal('millRate')?.value() || 12) / 1000;
} else {
taxRate = (taxSection.money('perThousand')?.value() || 12) / 1000;
}
// Calculate exemptions
let totalExemptions = 0;
if (exemptionsSection.checkbox('homestead')?.value()) {
const homesteadOption = exemptionsSection.dropdown('homesteadAmount')?.value() || '50000';
totalExemptions += homesteadOption === 'custom'
? (exemptionsSection.money('customHomestead')?.value() || 50000)
: parseInt(homesteadOption);
}
if (exemptionsSection.checkbox('seniorExemption')?.value()) {
totalExemptions += exemptionsSection.money('seniorAmount')?.value() || 10000;
}
if (exemptionsSection.checkbox('veteranExemption')?.value()) {
totalExemptions += exemptionsSection.money('veteranAmount')?.value() || 25000;
}
totalExemptions += exemptionsSection.money('otherExemptions')?.value() || 0;
// Taxable value
const taxableValue = Math.max(0, assessedValue - totalExemptions);
// Base property tax
const baseTax = taxableValue * taxRate;
// Special assessments
const specialAssessments = assessmentsSection.money('specialAssessments')?.value() || 0;
const hoaFees = assessmentsSection.money('hoaFees')?.value() || 0;
// Totals
const totalAnnualTax = baseTax + specialAssessments;
const totalWithHOA = totalAnnualTax + hoaFees;
const monthlyTax = totalAnnualTax / 12;
const monthlyWithHOA = totalWithHOA / 12;
// Effective rate on market value
const effectiveRate = marketValue > 0 ? (baseTax / marketValue) * 100 : 0;
return {
assessedValue: Math.round(assessedValue),
totalExemptions: Math.round(totalExemptions),
taxableValue: Math.round(taxableValue),
baseTax: Math.round(baseTax),
specialAssessments: Math.round(specialAssessments),
totalAnnualTax: Math.round(totalAnnualTax),
totalWithHOA: Math.round(totalWithHOA),
monthlyTax: Math.round(monthlyTax),
monthlyWithHOA: Math.round(monthlyWithHOA),
effectiveRate: (Number(effectiveRate) || 0).toFixed(3)
};
};
resultsSection.addRow(row => {
row.addPriceDisplay('assessedValue', {
label: 'Assessed Value',
computedValue: () => calculateTax().assessedValue,
variant: 'default'
}, '1fr');
row.addPriceDisplay('exemptions', {
label: 'Total Exemptions',
computedValue: () => calculateTax().totalExemptions,
variant: 'success',
isVisible: () => calculateTax().totalExemptions > 0
}, '1fr');
});
resultsSection.addRow(row => {
row.addPriceDisplay('taxableValue', {
label: 'Taxable Value',
computedValue: () => calculateTax().taxableValue,
variant: 'default'
}, '1fr');
row.addTextPanel('effectiveRate', {
label: 'Effective Rate (on Market Value)',
computedValue: () => `${calculateTax().effectiveRate}%`,
customStyles: { 'font-size': '1.1rem', 'font-weight': '500', 'text-align': 'center' }
}, '1fr');
});
resultsSection.addRow(row => {
row.addPriceDisplay('baseTax', {
label: 'Base Property Tax',
computedValue: () => calculateTax().baseTax,
variant: 'default'
}, '1fr');
row.addPriceDisplay('special', {
label: 'Special Assessments',
computedValue: () => calculateTax().specialAssessments,
variant: 'default',
isVisible: () => calculateTax().specialAssessments > 0
}, '1fr');
});
// Summary Section
const summarySection = form.addSubform('summary', {
title: '💰 Tax Summary',
isCollapsible: false,
sticky: 'bottom'
});
summarySection.addRow(row => {
row.addPriceDisplay('annualTax', {
label: 'Annual Property Tax',
computedValue: () => calculateTax().totalAnnualTax,
variant: 'large'
}, '1fr');
row.addPriceDisplay('monthlyTax', {
label: 'Monthly (for Escrow)',
computedValue: () => calculateTax().monthlyTax,
variant: 'success'
}, '1fr');
});
summarySection.addRow(row => {
row.addTextPanel('withHOA', {
computedValue: () => {
const tax = calculateTax();
if (tax.totalWithHOA > tax.totalAnnualTax) {
return `Including HOA: $${tax.monthlyWithHOA}/month`;
}
return '';
},
customStyles: { 'font-size': '0.9rem', 'color': '#64748b', 'text-align': 'center' },
isVisible: () => calculateTax().totalWithHOA > calculateTax().totalAnnualTax
});
});
summarySection.addRow(row => {
row.addTextPanel('note', {
computedValue: () => 'Actual taxes may vary. Contact your local tax assessor for exact amounts.',
customStyles: { 'font-size': '0.8rem', 'color': '#64748b', 'text-align': 'center' }
});
});
form.configureSubmitButton({
label: 'Get Full Tax Report'
});
}
Frequently Asked Questions
How are property taxes calculated?
Property taxes = (Assessed Value - Exemptions) x Tax Rate. Assessed value is typically a percentage of market value, and rates vary by location.
What is a homestead exemption?
A homestead exemption reduces the taxable value of your primary residence, typically by a fixed amount ($25,000-$50,000) or percentage. Requirements vary by state.
How often are property taxes paid?
Most homeowners pay monthly through escrow with their mortgage payment. Without a mortgage, taxes are typically due annually or semi-annually.
Can property taxes increase?
Yes, taxes can increase if your property's assessed value increases or if local tax rates rise. Many areas limit annual assessment increases.
Can real estate professionals use this calculator?
Yes! Real estate agents and mortgage professionals can customize this calculator with local rates and embed it on their website to help clients.