Why we built a global DTI calculator - and who built it
This Debt-to-Income (DTI) calculator was built by Clarity House Studio, a digital product studio focused on building free, neutral web tools that genuinely help people understand their financial position. We build tools for real people - not for financial institutions, not for lead generation, and not to push you toward any product or service.
We take no commission. We earn nothing when you make a financial decision. The site may show advertising to keep it free, which means our incentive is to be useful enough that you come back - not to mislead you into clicking anything.
Most debt-to-income ratio calculators we found were built for one audience: American mortgage applicants. They assumed you had a formal salary, a credit card, and a student loan. They accepted monthly figures in US dollars. They gave results against a 43% FHA threshold and stopped there.
That leaves out most of the world. A garment worker in Bangladesh paid daily. A market trader in Nigeria with microfinance repayments. A freelancer in the Philippines managing paluwagan contributions alongside a vehicle loan. A gig worker in India juggling a chit fund and a bank EMI (Equated Monthly Installment). None of those people had a calculator that understood their financial reality.
So we built one.
This calculator covers: 196 countries in local currency. Daily, weekly, and monthly income and debt frequencies. Informal obligations including microfinance EMIs, savings groups (ajo, paluwagan, chit fund, tontine), family loans, and 5-6 lending. Lender thresholds from eight major markets. A reverse calculator, goal calculator, and scenario simulator - all in your browser, with nothing sent to any server.
All calculations happen entirely in your browser. We never see your numbers.
We built this tool with a simple principle: your financial information is private. Unlike many financial tools that require you to create an account, connect a bank, or hand over personal details to see a result, this calculator needs nothing from you except the numbers you choose to type in - and those numbers never leave your device.
We display Google AdSense ads, which means Google may set cookies for advertising purposes. This is disclosed in our Privacy Policy. Beyond standard AdSense, we collect nothing and store nothing about you or your financial situation.
For full details, see our Privacy Policy.
If you find an error, have a suggestion, or want to report a problem with the calculator, we want to hear from you. This tool is free and we maintain it because it is useful - your feedback helps it stay that way.
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The calculator takes two inputs: your total monthly debt payments and your gross monthly income. It divides the debt total by the income figure to produce your DTI ratio as a percentage. The calculation itself is simple - the complexity lies in knowing which debts and income sources to include, and how lenders interpret the result.
Most lenders use two DTI figures: the front-end ratio, which covers only housing costs, and the back-end ratio, which covers all recurring debt obligations. Our calculator focuses on the back-end ratio because that is the figure most commonly used in lending decisions across the 196 countries we support.
All calculations happen in your browser. Your income and debt figures are never transmitted to any server. Close the tab and the numbers are gone. We have no way to access what you entered.
The answer depends on your country, your lender, and the type of credit you are seeking. In the United States, the Consumer Financial Protection Bureau considers 43 percent the maximum back-end DTI for a qualified mortgage. Most conventional lenders prefer 36 percent or below. FHA loans allow up to 50 percent in some cases.
In the United Kingdom, lenders use affordability assessments rather than strict DTI cutoffs, but most prefer a DTI below 40 percent. In Canada, the Gross Debt Service ratio should not exceed 39 percent and the Total Debt Service ratio should not exceed 44 percent under CMHC guidelines.
Across the Gulf states - UAE, Saudi Arabia, Kuwait, Qatar - central bank regulations typically cap monthly debt repayments at 50 percent of salary for expatriates and nationals. In Australia, no regulatory cap exists but most major banks prefer a DTI below 6 times annual income for total debt exposure.
Our by-country guide covers the specific guidelines for 196 countries including informal debt systems like ajo, paluwagan, chit funds, and 5-6 lending that formal calculators typically ignore.
Anyone preparing to apply for a mortgage, personal loan, car finance, or credit card will benefit from knowing their DTI before a lender checks it. A high DTI is one of the most common reasons for loan rejection and one of the most actionable - unlike a low credit score, which takes time to improve, a high DTI can often be reduced quickly by paying down specific debts or increasing income.
Renters who are planning to buy, employees considering a job change that might affect their borrowing capacity, and anyone consolidating debt will find this tool useful for running quick scenarios before making a financial commitment.
This tool is also useful for financial educators, housing counselors, and advisors who work with clients preparing for lending applications in multiple countries.
DTI is not a factor in credit score calculations. Credit scores are based on payment history, credit utilization, length of credit history, credit mix, and new inquiries. However, lenders check both your credit score and your DTI when evaluating a loan application, so both matter.
Only if you are applying jointly. If both names will appear on the loan application, include both incomes and both debt obligations. If applying individually, use only your own figures.
Lenders typically use an average of the past 24 months of income for self-employed applicants, freelancers, and commission-based workers. Use your average monthly income for the most accurate DTI calculation.
Check it whenever you are considering taking on new debt, changing jobs, or planning a major purchase. It is also worth checking quarterly if you are actively working to improve your financial position.
We review our country-by-country DTI guidelines regularly against official sources including central bank publications, financial regulatory body guidelines, and government housing authority documents. When regulations change, we update our data. If you notice outdated information for your country, please contact us at clarityhousestudio@gmail.com with the correct figure and a source reference and we will update it promptly.
Our 196-country coverage includes countries where formal DTI guidelines do not exist or are not publicly published. For those countries, we provide context about typical informal lending practices and the general financial health benchmarks used by local financial institutions. We are transparent about the difference between regulatory requirements and general guidance.
Every design decision in this calculator was made with privacy as a constraint, not an afterthought. We chose client-side JavaScript calculation over server-side processing specifically so we would never receive your financial data. We do not use analytics tools that track your behavior across sessions. We do not set persistent cookies tied to your identity. The advertising we display through Google AdSense is the only third-party service that interacts with your browser, and you can opt out of personalized ads at google.com/settings/ads at any time. Financial information deserves to stay private, and we built this tool to respect that from the ground up.