What is the Loan Affordability Calculator?

This calculator is an institutional-grade financial modeling tool designed to help professionals, business owners, and investors determine their maximum borrowing capacity. By reverse-engineering standard underwriting metrics like Debt-to-Income (DTI) ratios, it translates gross income, existing debt obligations, and prevailing interest rates into a realistic maximum loan amount.

What inputs do I need to get started?

To get the most accurate results, you will need your gross monthly income (or average monthly business distributions), your total monthly recurring personal debt payments (such as auto loans, student loans, and credit card minimums), the estimated interest rate, and the loan term. Having these inputs prepared ensures your scenario modeling is precise.

How often should I run these calculations?

It is highly recommended to recalculate your borrowing capacity whenever there is a shift in your primary income streams, changes in prevailing interest rates, or before you take on new recurring liabilities. Regular calculations keep your financial planning aligned with current market realities.

What are the most common errors to avoid?

The most frequent mistake is omitting recurring liabilities like co-signed loans or personal guarantees on business debt, which underwriters will uncover during credit checks. Additionally, using net take-home pay instead of gross income will skew the results, leading to inaccurate debt capacity estimates.

How do lenders evaluate self-employed or business owner income?

Underwriters typically look at the net taxable income from your business tax returns averaged over two years, rather than gross business revenues. They will adjust this figure by adding back non-cash expenses like depreciation to establish your qualifying gross monthly income.

Финанси

Колко мога да заема?

How Much House Can I Afford?

Валута

Annual Income

Monthly Debt Payments

Авансово плащане

Лихвен процент

Само за информационни цели. Този инструмент не представлява финансов съвет. Консултирайте се с квалифициран финансов съветник преди да вземате инвестиционни или финансови решения.

Deep Dive

Read the full guide on how to use this calculator effectively

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Formula-verified for precision

Reviewed October 2026

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Колко мога да заема?

How Much House Can I Afford?

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