Last updated: July 22, 2026 | Educational methodology | Not legal advice
What This Page Explains
This page documents the calculation method used by the Dubai Rent Increase Calculator. It exists because a rent increase estimate is only useful if the formula is transparent. Tenants should be able to see which denominator is used, where the band thresholds come from, and why the official Dubai Land Department rental index remains the final source to check.
The calculator is a preparation tool. It does not replace the official rental index, Ejari records, tenancy contract terms, notice timing, or qualified professional advice. Its job is to help you spot whether a proposed increase deserves closer checking before you sign a renewal.
Official Basis Used
Dubai Land Department describes its rental index service as a way to calculate rental increases and average market rent by entering the required area and property data. Decree No. 43 of 2013 sets rent increase bands based on how far the current rent is below the average market rental rate for similar units.
For that reason, this calculator measures the gap against the estimated average market rent entered by the user. It does not measure the gap against the current rent. This matters because the two approaches can produce different percentages.
Formula Used
The simplified percentage gap is:
(estimated market annual rent - current annual rent) / estimated market annual rent x 100
If the market rent entered is AED 100,000 and the current rent is AED 80,000, the current rent is 20% below the market figure. The calculator then maps that percentage to the simplified band table below.
| Current rent compared with estimated market rent | Simplified estimated cap |
|---|---|
| Up to 10% below estimated market rent | 0% |
| More than 10% and up to 20% below estimated market rent | 5% |
| More than 20% and up to 30% below estimated market rent | 10% |
| More than 30% and up to 40% below estimated market rent | 15% |
| More than 40% below estimated market rent | 20% |
Worked Examples
AED 80,000 current rent and AED 100,000 market rent
The gap is AED 20,000. AED 20,000 divided by AED 100,000 equals 20%. In this simplified calculator, that maps to a possible 5% increase cap, giving an estimated maximum renewal rent of AED 84,000.
AED 70,000 current rent and AED 100,000 market rent
The gap is AED 30,000. AED 30,000 divided by AED 100,000 equals 30%. In this simplified calculator, that maps to a possible 10% increase cap, giving an estimated maximum renewal rent of AED 77,000.
AED 55,000 current rent and AED 100,000 market rent
The gap is AED 45,000. AED 45,000 divided by AED 100,000 equals 45%. In this simplified calculator, that maps to a possible 20% increase cap, giving an estimated maximum renewal rent of AED 66,000.
Why Your Official Result May Differ
The official rental index can use property and contract details that a two-field calculator cannot fully capture. The official service may ask for a contract end date, property type, location, Ejari contract number, DEWA premise number, area, or other required fields. It may also use current data that changes over time.
Use this site to prepare your numbers and identify obvious mismatches. Use the official Dubai Land Department result before you accept, reject, negotiate, or escalate a proposed increase.
If the Two Numbers Do Not Match
Treat the mismatch as a checklist problem, not a final answer. Re-run the official rental index with the same property, contract, and date details you plan to discuss with the landlord, then save both outputs before replying.
If the proposed increase still looks unsupported, move from math to evidence: keep the official rental index result, your tenancy dates, the landlord notice, and a written reply trail together. The RERA rental index guide, rent dispute evidence checklist, and reply email template are the next pages to use.
Download the Input Evidence Worksheet
Before comparing the calculator estimate with the official rental index, save the exact inputs in one place: current rent, proposed rent, market-rent input, official result, notice date, renewal date, area, property type, and any Ejari or DEWA reference used in the official form.
Download the Dubai rental index evidence worksheet
Evidence to Save Before Replying
- Current tenancy contract and current annual rent.
- Landlord or agent rent-increase notice, including the date received.
- Official rental index result or screenshot.
- Calculator estimate from this site, clearly marked as a preparation estimate.
- Ejari details, DEWA premise number, or property identifiers used in the official form.
- Written messages about renewal, proposed rent, and negotiation.
Official Sources
Source links checked July 22, 2026.
- Dubai Land Department rental index calculator
- Dubai Land Department rental index service description
- Dubai rental increase Decree No. 43 of 2013 PDF
Quick FAQ
Which denominator does this Dubai rent increase calculator use?
The simplified estimate compares the rent gap with the estimated market annual rent entered by the user: estimated market rent minus current rent, divided by estimated market rent.
Does this calculation replace the Dubai Land Department rental index?
No. This calculator is a preparation estimate only. Check the official Dubai Land Department rental index and your own contract details before acting.
What should I do if this estimate and the official result differ?
Save both results, check that the same property and contract details were used, and rely on the official Dubai Land Department result before accepting, rejecting, negotiating, or escalating a proposed renewal increase.
Should I save a worksheet with the calculation inputs?
Yes. Save the current rent, proposed rent, market-rent input, official rental index result, notice date, renewal date, and property identifiers in one worksheet so the estimate can be checked later.
Why can the official result differ from this estimate?
The official rental index can use property, contract, area, date, and registration details that a simple two-field calculator cannot fully capture.