Published 15 July 2026 · Updated 15 July 2026

Mortgage repayment calculator UAE: principal vs interest, year by year

By Fatima Al Rashid, Senior Mortgage Editor · 10 min read

Your first mortgage payment on a AED 1.5M UAE home loan is about AED 8,126. Roughly AED 5,257 of that goes to interest. Only AED 2,869 actually reduces what you owe. Nobody puts that split on the rate sheet.

It gets better with time, month by month, in a curve rather than a straight line. This piece runs the actual amortisation table so you can see exactly how the split moves, the precise month it tips in your favour, and what a shorter term or a modest overpayment habit does to both numbers.

Where your first year's payment actually goes

Take an illustrative AED 1.5M loan at 4.25% over 25 years, a rate chosen to show the mechanics clearly, not a specific bank's quote (the current market floor is 3.78% conventional, per the ticker above). The monthly payment works out to AED 8,126.

In year one, that adds up to AED 34,428 of principal and AED 63,085 of interest. Interest is nearly double the principal portion. That's not a rip-off; it's how a reducing-balance loan is built. You're borrowing the full AED 1.5M on day one, so the bank charges interest on the full balance from day one too. Only as the balance shrinks does the interest slice shrink with it.

AED 1.5M loan, 4.25% illustrative fixed rate, 25-year term, standard reducing-balance amortisation. Figures rounded to the nearest AED. Run your own loan amount and rate on the mortgage calculator.

Look at year 20 against year 1. The payment is the same AED 8,126 every single month. What's inside it has almost completely flipped.

The crossover point: when principal takes the lead

There's one specific month where the balance tips. On this loan, it's month 105. That's 8 years and 9 months in. Before month 105, every payment sends more to the bank's interest line than to your equity. From month 105 onward, it reverses, and it keeps reversing harder every month after that.

Nine years is a long runway. If you're planning to sell or refinance inside a decade, most of what you've paid has gone to interest, not to building equity in the property. That's worth knowing before you assume a mortgage payment behaves like a savings deposit. It doesn't, not for a while.

Does a shorter term change the split?

Dramatically. Take the identical AED 1.5M loan and drop the term to 15 years instead of 25. The payment rises to AED 11,284 a month. But something else changes too: principal is already ahead of interest from the very first payment. There's no nine-year wait.

Same AED 1.5M principal, same 4.25% illustrative rate, term only variable changed.

A 15-year term costs about AED 3,158 more each month. In exchange, total interest across the life of the loan drops by roughly AED 407,000. That's not a small trade. It's a genuine tradeoff between monthly cash flow now and total cost over time, and it's the single biggest lever a borrower controls after the rate itself. Our UAE mortgage term calculator guide walks through the maths on other term lengths.

What overpaying does to the split

You don't have to commit to a whole new term to get some of that benefit. Most UAE banks let you make extra payments, and every extra dirham comes straight off the principal, not the interest, because that's how the balance calculation works.

Add an amount equal to 10% of your annual instalment, paid as a lump sum each year, to the original 25-year AED 1.5M loan. The payoff moves from 300 months to roughly 257 months, about 21 years and 5 months. Total interest drops from AED 937,821 to approximately AED 787,574. That's a saving near AED 150,000, and you own the property free and clear about 3 years and 7 months sooner.

Check your bank's overpayment terms before you commit to a habit like this. Some UAE products cap free annual overpayments at a set percentage; others charge a fee past that limit. Our overpayment calculator guide covers the bank-by-bank rules in more depth.

Why this matters more than the headline rate for long-term holders

Shoppers fixate on the rate because it's the number on the billboard. Fair enough. But two loans with rates half a point apart can have wildly different amortisation shapes depending on the term and how disciplined the borrower is about extra payments. A slightly higher rate on a 15-year term can beat a lower rate on a 25-year term on total interest paid, even though the headline looks worse. Our guide on how UAE banks design mortgages goes into why the advertised rate is only one lever among several.

There's also the reversion question. Most UAE mortgages carry a fixed introductory period before switching to a variable rate tied to 3-month EIBOR plus a margin. Everything above assumes one flat rate for the full term to keep the maths readable. Your real schedule will re-shape itself the moment the fixed period ends and the rate resets, so treat this as the mechanics, not a prediction of your exact bank statement in year 12.

What a repayment calculator can't show you

The principal-interest split covers the loan itself. It says nothing about processing fees (typically 0.5% to 1% of the loan), mortgage registration with the Dubai Land Department (0.25% of the loan), or mandatory life takaful or insurance, usually 0.2% to 0.5% of the outstanding balance annually. None of that shows up in an amortisation table, and all of it adds real cost on top. Our fixed vs variable guide and EMI calculator guide cover those pieces if you want the fuller picture before you sign.

Common questions on repayment splits

What percentage of my mortgage payment is interest in the early years?

On a AED 1.5M UAE mortgage at 4.25% over 25 years, roughly 65% of your first year's payments go to interest and 35% to principal. That ratio improves every month, but it stays interest-heavy for close to a decade before it turns.

When do I start paying more principal than interest on a UAE mortgage?

On a 25-year loan at 4.25%, the crossover lands in month 105, eight years and nine months in. Before that month, interest is the bigger slice of every payment. After it, principal takes over and your equity builds noticeably faster for the remaining 16 years.

Does a shorter mortgage term mean less total interest in the UAE?

Yes, substantially. On the same AED 1.5M loan at 4.25%, a 15-year term pays roughly AED 531,000 in total interest against AED 938,000 on a 25-year term, a saving of about AED 407,000. The tradeoff is a monthly payment that jumps from AED 8,126 to AED 11,284.

Does overpaying a UAE mortgage reduce the total interest paid?

Yes. Adding an extra payment equal to 10% of your annual instalment each year, on a AED 1.5M loan at 4.25% over 25 years, cuts the term to roughly 21 years 5 months and saves about AED 150,000 in total interest, because every extra dirham comes straight off the principal balance the bank charges you on.

Why does my UAE bank's amortisation schedule look different from a generic calculator?

Most UAE mortgages are variable after an initial fixed period, reverting to 3-month EIBOR plus the bank's margin. A generic calculator that assumes one flat rate for 25 years will diverge from your bank's real schedule the moment EIBOR moves, because your payment or your term (depending on the product) resets to reflect the new rate.