More than your salary, more than the property price, one number quietly decides most UAE mortgages: your Debt Burden Ratio (DBR). Understand it and you understand why a bank lends what it lends — and how to make it lend more.
The rule: 50% of your income
The Central Bank caps your DBR at 50%. That means your total monthly debt repayments — including the new mortgage — cannot exceed half your gross monthly income. There is one exception: UAE nationals borrowing under a government-guaranteed housing programme get a higher 60% cap. For everyone else, 50% is the ceiling every lender works to.
How to calculate it
The formula is simple:
DBR = total monthly debt repayments ÷ gross monthly income.
What goes into "total monthly debt repayments":
- Personal loan and car-finance instalments
- The new mortgage payment — but stress-tested at a higher rate (see below)
- A slice for credit cards — banks typically count about 5% of your total card limit, even if you pay it off in full
Note: the 50% cap is a Central Bank rule, but the 5% credit-card figure is lender practice, not a regulation — banks apply it slightly differently, so confirm the treatment with yours.
A worked example
Take a AED 20,000 monthly salary, with a AED 2,000 car-loan payment and a AED 50,000 credit-card limit:
- Car loan: AED 2,000
- Credit card: 5% of AED 50,000 = AED 2,500
- Existing commitments: AED 4,500/month → a current DBR of 22.5%
The 50% cap allows AED 10,000 of total commitments, so this buyer has AED 5,500 a month of headroom for a mortgage payment. That headroom — not the salary itself — is what sets the loan. You can run your own figure in seconds with the DBR calculator.
Why the stress test makes the mortgage "count" for more
The mortgage payment in your DBR isn't the one you actually pay — banks must size it at a stressed rate, 2–4 percentage points above the real rate. So your headroom buys a smaller loan than today's rate alone would suggest. That is deliberate, and it is explained in our guide to the UAE stress test.
How to improve your DBR before you apply
- Clear a small loan — it removes the whole instalment from the ratio.
- Reduce a credit-card limit — because banks count ~5% of the limit, lowering an unused limit instantly frees capacity.
- Avoid taking on new finance in the months before you apply.
From DBR to your actual loan
Your DBR sets the monthly headroom; the loan that headroom supports then depends on the rate, the term and the LTV cap. To go straight from a salary to a borrowing figure, see how much you can borrow on a 15k or 20k salary, or put your own numbers through the DBR calculator and the eligibility calculator.