Financial Disclaimer

Mortgage Number Lab does not provide individualized financial, mortgage, investment, tax, legal, or insurance advice. The website is operated by a software provider, not a licensed financial professional, lender, or broker.

No information on this website — including calculator outputs, explanatory articles, FAQs, or example calculations — should be treated as a personalized recommendation for your situation.

Mortgage calculations depend entirely on the inputs you provide and standard mathematical formulas. Actual costs and payments you encounter with a lender may differ significantly because of factors including, but not limited to:

• Your specific interest rate, which depends on your credit score, down payment, loan type, lender pricing, and current market conditions
• Annual Percentage Rate (APR), which includes lender fees and is higher than the interest rate alone
• Loan program type (conventional, FHA, VA, USDA, jumbo, adjustable-rate)
• Your credit profile and debt-to-income ratio as evaluated by your lender
• Actual property tax rates for your specific property and jurisdiction, which can change annually
• Actual homeowners insurance premiums quoted for your property and coverage level
• Private mortgage insurance (PMI) rates, which vary by lender, insurer, credit score, and LTV ratio
• HOA fees, special assessments, and condo association costs
• Lender-specific origination fees, discount points, and closing costs
• Title, escrow, and government recording fees
• Escrow account requirements and annual adjustments
• State and local mortgage regulations
• Market conditions that change between the time of your estimate and closing

No result from any calculator on this website should be interpreted as:

• A mortgage pre-approval or pre-qualification
• A lending commitment or promise of credit
• A guaranteed interest rate or APR
• A credit decision of any kind
• Evidence of ability to qualify for a loan

Mortgage approval is determined entirely by lenders based on their underwriting guidelines, your complete financial profile, and the specific property you are financing.

The Mortgage Affordability Calculator provides a rough estimate based on editable debt-to-income planning ratios. Lenders use their own underwriting criteria, which may differ substantially from the planning ratios used in this calculator.

An affordability calculator result does not mean a lender will approve you for that amount. Approval depends on your full credit application, property appraisal, and the lender's complete underwriting process.

For an accurate picture of what you may qualify for, speak with a licensed mortgage loan originator.

Private mortgage insurance estimates on this site are based on a general rate applied to the loan amount. Actual PMI costs vary based on:

• The specific lender and mortgage insurer
• Your loan-to-value ratio
• Your credit score and risk profile
• The loan program (conventional, FHA MIP, VA funding fee, USDA guarantee fee)
• Whether PMI is paid monthly, upfront, or as lender-paid PMI

PMI cancellation rights and timelines also vary by loan type and lender. Consult your lender for specific PMI terms applicable to your loan.

The Refinance Calculator compares two loan scenarios based on the inputs you provide. A lower monthly payment from a refinance does not necessarily mean the refinance is financially beneficial. Extending your loan term may reduce your monthly payment while significantly increasing total interest paid over the life of the loan.

A break-even calculation is an estimate based on simplified assumptions and does not account for tax deductibility of mortgage interest, investment of payment difference, changes in property value, or other factors specific to your situation.

This calculator result should not be interpreted as a recommendation to refinance or to remain in your current mortgage.

Property tax amounts shown in calculator results are based on values you input and are not verified for any specific location. Actual property taxes:

• Vary significantly by state, county, and municipality
• Are assessed based on the property's assessed value, which may differ from purchase price
• Can change from year to year based on reassessments or rate changes
• May be subject to exemptions (homestead, veterans, senior, etc.) that affect your actual bill

This website does not provide tax advice. For guidance on property taxes, consult your county assessor's office. For broader tax planning related to homeownership, consult a qualified tax professional.

Before making any significant financial decision based on a calculator result, we strongly encourage you to:

• Get a Loan Estimate from one or more licensed mortgage lenders
• Consult a licensed mortgage loan originator (MLO) about your specific situation
• Work with a financial advisor to understand long-term implications
• Consult a tax professional for any tax-related aspects of homeownership
• Consult a real estate attorney for contract and title matters, where appropriate

We invest significant effort in implementing and testing our calculators to ensure they use correct formulas and produce reasonable results. Our Methodology page documents the formulas, rounding methods, and known limitations of each calculator.

However, we cannot warrant that calculator results are free of errors, that they will match any specific lender's calculations, or that the methodologies used are appropriate for every mortgage scenario. We make no express or implied warranty regarding accuracy, completeness, or fitness for any particular purpose.

If you believe you have found a calculation error, please contact us with the details so we can investigate and correct it.

This website may display advertising from third-party advertising networks. Advertisers have no influence over the calculator formulas, methodology, or results presented on this site. The presence of advertisements does not affect how calculations are performed.