Buying a property with a mortgage usually starts in the wrong place. You open Property Finder, pick an area, browse apartments, find one you like — and only then start working out how much the bank will actually lend and how much cash the transaction will require.
I prefer the reverse order: numbers first, property second. That is why I built a dedicated mortgage calculator for Dubai — something you can use before your first serious viewing.
Why a standard mortgage calculator is not enough
Most mortgage calculators answer one question: what your monthly payment will be for a given loan amount, interest rate and term. That is not enough for a real property purchase in Dubai, because the payment is only one part of the transaction.
A buyer needs to understand the down payment, DLD fees, mortgage-registration costs, bank and agency fees, valuation, NOC and other expenses at the same time. It is also important to check in advance whether the proposed mortgage works with the client’s income and existing debt commitments.
So I did not want to make yet another loan amount × rate × years, but a tool that answers a more practical question: how much money will I actually need to buy this property?
Enter a property price — get the real picture of the deal
It starts with the price of a completed resale property. You then select the buyer type, purchase purpose, age, income, existing monthly commitments and the amount of cash the buyer is prepared to use.
The calculator applies the LTV limits and immediately shows the minimum cash contribution. Under current CBUAE rules, an expatriate buying a first home priced up to AED 5 million can borrow up to 80% LTV; above AED 5 million, the maximum is 70%. For UAE nationals, the corresponding maximums are 85% and 75%, while second homes and investment properties are subject to lower limits.
That changes the whole approach to searching. Instead of the abstract “I want an apartment for around AED 3 million”, you get a clear range in which the purchase can genuinely happen.
An AED 500,000 down payment does not mean the transaction requires AED 500,000
In the calculator’s opening example, the property costs AED 2.5 million. For an expatriate buying a first home, the down payment is AED 500,000 and the loan is AED 2 million.
But a more important number appears below: the transaction requires around AED 688,720 of your own funds with the current example settings. The difference comes from registration, bank and transaction costs that are often forgotten when people calculate only the down payment.
The calculator itemises DLD, the trustee fee, mortgage registration, bank valuation, NOC, bank commission and agency commission. Dubai Land Department does charge 4% on a sale registration, while mortgage registration is calculated at 0.25% of the secured amount; the registration trustee fee varies with the property value.
That is why I calculate not just the down payment for a client, but the full amount of money needed before and on the transfer day
What if the bank values the property below the seller’s price?
This is another point that ordinary calculators almost never show. The buyer agrees a price with the seller, but the bank then carries out an independent valuation.
If an apartment is selling for AED 2.5 million but the bank valuer considers it worth AED 2.35 million, the loan is calculated from the bank valuation. The buyer has to cover the difference with their own funds.
The calculator lets you enter the valuation separately from the agreed price and immediately see how the valuation gap changes the required cash. For me as a broker, this is especially useful because it lets us discuss valuation risk before signing the deal, rather than after the problem appears
Income reveals the budget ceiling, not just the payment
The next level of the calculation begins when the client enters monthly income and existing credit commitments. The calculator checks debt burden and shows an indicative maximum purchase budget.
Current CBUAE rules set the maximum Debt Burden Ratio at 50% of gross income and regular verified sources of income. A bank is not obliged to lend automatically up to that maximum DBR and will also assess the client’s individual ability to service the debt.
This is an important distinction. The question is no longer “Can I pay AED 12,000 per month?” but “What mortgage can a bank realistically consider given my income, existing loans and financial profile?”
What happens after that attractive fixed rate?
A bank’s advertised rate rarely applies for the full twenty or twenty-five years. A mortgage product may have a two-, three- or five-year fixed period, after which the rate moves to another formula, often linked to EIBOR and the bank’s margin.
The calculator therefore shows not only the first payment but also the scenario after the fixed period ends. You can see the remaining loan balance at that point and what happens to the monthly payment if the rate rises by one or two percentage points.
To me, this is far more useful than showing a client one attractive number for the first year. A mortgage needs to be assessed not only when you receive the keys, but with an understanding of what may happen several years later.
Rent, a mortgage and the investment case
If the property is being bought as an investment, the mortgage payment alone is not enough either. The calculator lets you add expected annual rent and see gross yield, cash-on-cash return and whether rent can cover the mortgage payment.
For owner-occupation, there is another scenario: rent versus buy. You can enter what you currently pay in rent, see the difference between today’s costs and the proposed mortgage, and look at the long-term effect of owning the property.
This is not an attempt to prove that buying is always better than renting. On the contrary, the tool is designed to show the numbers early enough for someone to make a decision without forcing the calculation to fit an apartment they have already fallen for.
Compare two properties before a viewing
One feature I particularly missed in standard mortgage services was a quick comparison of two prices. For example, a client may be choosing between an AED 2.4 million apartment and an AED 2.8 million property.
At first glance, the difference is AED 400,000. But what matters more to the buyer is how much the required cash changes, what the new loan amount will be and how far the monthly payment rises.
The calculator lets you view those two transactions side by side. The property discussion becomes much more concrete: we compare not only size, view and location, but the real financial burden as well.
When exactly will the money be needed?
Even the total cash required for a transaction does not answer another practical question: when exactly does that money need to be paid?
The calculator therefore splits payments by stage. It shows the reservation or seller deposit, bank valuation, NOC and the amount needed directly at the DLD transfer separately.
This lets you prepare liquidity in advance and avoid a situation where the buyer has the total amount but part of it sits in a deposit or investment account, or simply cannot arrive by the transaction date.
Three languages and one link to a specific calculation
The calculator works in Russian, English and Arabic. For Arabic, the interface fully switches to RTL, while the numbers remain Latin numerals — just as clients are used to seeing them in UAE documents and banking interfaces.
Every calculation can be saved in a link and sent to a client on Telegram or WhatsApp. It may seem like a small thing, but it is very useful in a broker’s work: instead of a screenshot with a few figures, the person receives the same calculation and can change the price, rate or down payment themselves.
A conversation tool, not a bank promise
The calculator does not issue mortgage pre-approval and does not try to replace a bank or mortgage adviser. It gives an indication based on the entered parameters, current regulatory limits and stated market assumptions.
The final rate, loan amount and terms always depend on the specific bank, the client’s employer or business, credit history, property valuation and the property itself. That is why the next step after the calculation is a proper review of the financial profile and obtaining pre-approval.
I work with mortgage clients together with Huspy: they help find the right banking solution and navigate the mortgage process, while through Nevsky Realty I handle the property, negotiations and the transaction itself.
A little about how it was built
The calculator started out almost as a working experiment. I built it with Grok Build, using the visual language of nevsky.ae as a foundation: Geist, a dark interface, plenty of space and minimal decoration.
Inside, it is no longer just a form with a few fields. The LTV rules, payment calculation, DBR, fees and the remaining formulas sit in a separate calculation engine, while the interface works in three languages. The core calculations have automated tests, because even a beautiful calculator is useless if its numbers are wrong.
But what matters more to me is not how many lines of code it contains or how many hours it took to build. What matters is that before viewing a specific apartment, I can now open one page and show a client the financial picture of the entire purchase in a few minutes.
Numbers first, property second
I like real estate, but I do not think it should be bought with an emotions calculator. A good property at the wrong price or with an unsuitable mortgage does not become a good deal.
So my order is simple: first establish the real budget, calculate the cash required, check the mortgage options and obtain pre-approval. Only then do we look for an apartment or villa that can genuinely be bought.
If you would like to analyse a specific property, you can first run it through the calculator yourself and then send me the result. I will review it with you, and from there we can move on to the bank, pre-approval and the property search.
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