# RERA rent calculator worked example: index result, notice and renewal

> A worked RERA rent calculator example showing the index gap, Decree 43 cap, revised rent and 90-day renewal notice as separate tests.

Source: https://withlida.com/insights/rera-rent-calculator-worked-example

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:::intro
Dubai's renewal scale has five statutory maximum bands, 0%, 5%, 10%, 15% and 20%. In this transparent hypothetical, AED 90,000 against an assumed AED 120,000 index average is 25% below the average, which maps to a 10% cap and a maximum revised rent of AED 99,000, while the 90-day notice test remains separate ([Decree No. 43 of 2013](https://dubailand.gov.ae/media/z2dn3gtr/rental-increase-decree-43-in-dubai.pdf) and [Law No. 33 of 2008](https://dlp.dubai.gov.ae/Legislation%20Reference/2009/Law%20No.%20(33)%20of%202008%20Amending%20Law%20No.%20(26)%20of%202007.pdf), checked 25 September 2026).
:::

:::summary
- The worked result is AED 99,000, but only because this example assumes an AED 120,000 index average. It is not a result for a real tenancy.
- The calculator or Smart Rental Index result supplies the comparable average and eligibility signal. It does not replace the decree's cap table.
- A 25% gap maps to the 10% maximum band under Decree No. 43 of 2013, as checked 25 September 2026.
- The 10% is applied to the current AED 90,000 rent, producing an AED 9,000 maximum increase and AED 99,000 revised rent.
- Notice is a separate timing test. Article 14 sets a default minimum of 90 days before expiry unless the parties agreed otherwise.
:::

## Read the renewal as three separate tests

The clean answer is not one percentage. A renewal file has an index result, a statutory cap and a notice timeline. Each answers a different question.

| Test | Worked input or finding | What it establishes | What it does not establish |
| --- | --- | --- | --- |
| Calculator or index | Hypothetical average: AED 120,000 | The comparison point for a similar unit | Whether notice was timely |
| Decree 43 cap | AED 90,000 is 25% below AED 120,000, so the band is 10% | The maximum percentage under the statutory scale | That every contract may automatically change |
| Revised-rent arithmetic | AED 90,000 + AED 9,000 = AED 99,000 | The maximum revised annual rent in this hypothetical | A result for any actual property |
| Contract and notice | Expiry 31 December 2026; notice 1 October 2026, 91 days before expiry | The hypothetical notice clears the default 90-day timing test | The index band or revised amount |

The first two rows come from different official instruments. Dubai Land Department, or DLD, runs the [Rental Index service](https://dubailand.gov.ae/en/eservices/rental-index/). Decree No. 43 of 2013 supplies the maximum bands and says the average market rental rate is set according to the Rent Index approved by RERA, DLD's Real Estate Regulatory Agency. The notice rule comes from Article 14 of Law No. 33 of 2008. All were checked on 25 September 2026.

For the broad rule set, use the [Dubai rent increase rules guide](/insights/dubai-rent-increase-rules). This companion stays with the worked calculation.

## What the live DLD calculator asks for

The current service asks for the contract end date, property type and current annual rent, plus a way to identify the relevant property. DLD's service procedure also names the area and room count. The live residential interface exposes an Ejari Contract Number or Municipality Number, with area-based fields elsewhere. Ejari is DLD's tenancy-registration system.

The live form was extracted at **2026-09-25T06:14:15Z**. DLD's service page displayed “Site was last updated on 23 September 2026 - 07:09 AM” when checked on 25 September 2026. The live interface also required a CAPTCHA.

::figure{src="images/blog/rera-rent-calculator-worked-example/tool-1.webp" alt="Current Dubai Land Department Rental Index input form" caption="The official DLD Rental Index surface accepts a contract end date, property type, property lookup and current annual rent; checked 25 September 2026."}

No valid Municipality Number, Ejari Contract Number or complete area record was used in this run, so the calculator did not return a result for a real tenancy. The worked example therefore assumes an index average of AED 120,000. It does not invent a property address, contract number, calculator certificate or transaction document.

:::aside{title="The exact hypothetical inputs"}
Contract expiry: 31 December 2026. Property type: apartment. Current annual rent: AED 90,000. Proposed annual rent: AED 105,000. Assumed index average: AED 120,000. The property's lookup identifier, area, building and bedroom count are deliberately left unspecified because no real tenancy was queried.
:::

## The worked calculation reaches AED 99,000

The calculation has four stages, and each stage can be checked independently. DLD's own [Decree 43 calculation sheet](https://dubailand.gov.ae/media/q1plwff4/how-to-calculate-the-increase.pdf), fetched 25 September 2026, uses the same sequence: calculate the gap against the official average, identify the band, apply that band to current rent, then add the increase.

### 1. Calculate how far the current rent sits below the assumed average

The assumed index average is AED 120,000. The current annual rent is AED 90,000.

**AED 120,000 minus AED 90,000 = AED 30,000.**

Divide the AED 30,000 difference by the AED 120,000 average:

**AED 30,000 ÷ AED 120,000 × 100 = 25%.**

The denominator matters. DLD's published worked method divides the difference by the index average, not by the current rent, as checked 25 September 2026.

### 2. Map the 25% gap to the decree band

Decree No. 43 of 2013 sets five maximum bands. The table below reproduces the official thresholds checked on 25 September 2026.

| Current rent below the comparable index average | Maximum increase at renewal |
| --- | ---: |
| Up to 10% below | 0% |
| 11% to 20% below | 5% |
| 21% to 30% below | 10% |
| 31% to 40% below | 15% |
| More than 40% below | 20% |

Source: [Decree No. 43 of 2013, Articles 1 and 3](https://dubailand.gov.ae/media/z2dn3gtr/rental-increase-decree-43-in-dubai.pdf), checked 25 September 2026.

A 25% gap sits in the 21% to 30% row, so the maximum band in this hypothetical is **10%**.

### 3. Apply 10% to the current rent

The band applies to the current AED 90,000 rent:

**AED 90,000 × 10% = AED 9,000.**

Add that increase to the current rent:

**AED 90,000 + AED 9,000 = AED 99,000.**

That is the worked maximum revised annual rent. It is not the assumed AED 120,000 index average, and it is not a direction to use that amount in an actual contract.

### 4. Compare the proposal with the worked maximum

The hypothetical proposal is AED 105,000. Against the current AED 90,000 rent, that is an AED 15,000 increase, or 16.67% rounded to two decimal places. The proposal is AED 6,000 above the worked AED 99,000 maximum.

The stage checks are therefore consistent: AED 30,000 gap, 25% below the average, 10% band, AED 9,000 maximum increase, AED 99,000 maximum revised rent. The full arithmetic was recomputed in code for this article on 25 September 2026.

::figure{src="images/blog/rera-rent-calculator-worked-example/inline-1.png" alt="Worked RERA rent calculation from index average to revised rent" caption="The assumed AED 120,000 average produces a 25% gap, a 10% band and a worked AED 99,000 maximum revised rent."}

## Notice changes the contract process, not the arithmetic

The 90-day rule does not alter 25%, 10% or AED 99,000. It asks whether the proposed contract change was notified in time.

Article 14 of [Law No. 33 of 2008](https://dlp.dubai.gov.ae/Legislation%20Reference/2009/Law%20No.%20(33)%20of%202008%20Amending%20Law%20No.%20(26)%20of%202007.pdf) says that, unless the parties agreed otherwise, a party wishing to amend a lease term must notify the other party no less than 90 days before the lease expires. The law defines Notice as written notification sent through a notary public, registered mail, by hand or another technological means approved by law. This official text was checked 25 September 2026.

For the hypothetical 31 December 2026 expiry, the point 90 days before expiry is **2 October 2026**. A notice dated 1 October is **91 days** before expiry. A notice dated 3 October is **89 days** before expiry. Those calculations establish timing only.

DLD's [Smart Rent Index explanation](https://dubailand.gov.ae/en/news-media/the-smart-rent-index-mitigates-inflation-in-dubai-and-enhances-market-transparency/), published 16 February 2025 and fetched 25 September 2026, also treats index eligibility and 90-day notice as separate conditions. It says an increase is not applied where the index shows eligibility but the landlord did not give the tenant at least 90 days' notice.

::figure{src="images/blog/rera-rent-calculator-worked-example/inline-2.png" alt="Ninety-day notice timeline for a 31 December 2026 Dubai tenancy expiry" caption="For the hypothetical expiry, 2 October is the 90-day point and 1 October is 91 days before expiry."}

The [index-date versus notice-date companion](/insights/dubai-rent-increase-notice-index-date) covers what each timestamp proves when calculator evidence changes between notice and renewal.

## Keep one renewal file with all three tests

A readable renewal file preserves the calculator inputs, the band calculation and the notice evidence without treating one as a substitute for another. The steps below are an editorial record-keeping method, not an official statutory checklist.

::::steps
:::step{title="Save the registered contract"}
Keep the Ejari-registered contract showing the current annual rent and exact expiry date. Do not infer either input from an informal message.
:::
:::step{title="Capture every calculator input"}
Record the run date, contract end date, property type, search method, property identifier or area details, bedroom count where requested, and current annual rent. Save the full result rather than only its percentage.
:::
:::step{title="Recompute the band"}
Subtract current rent from the displayed comparable average, divide by that average, and map the percentage to the Decree 43 table. Then apply the permitted band to current rent.
:::
:::step{title="Keep the notice and delivery evidence"}
Retain the complete written notice and the evidence showing when and how it reached the other party. The legal definition of Notice and the 90-day timing rule are separate from the index calculation.
:::
:::step{title="Compare like with like"}
If the parties hold different results, compare the contract end date, search method and property inputs first. A cropped output or a run for a different unit cannot explain the difference on its own.
:::
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## RERA rent calculator FAQs, checked 25 September 2026

::::faq
:::faq-item{q="How much can rent increase under RERA rules?"}
Decree No. 43 of 2013 sets maximum bands of 0%, 5%, 10%, 15% and 20%, according to how far current rent sits below the RERA-approved index average. The applicable amount also depends on the actual index result and the separate contract and notice facts.
:::
:::faq-item{q="How do I check rent on the RERA calculator?"}
Open DLD's Rental Index service and enter the contract end date, property type, supported property lookup and current annual rent. The live residential surface checked 25 September 2026 exposed an Ejari Contract Number or Municipality Number, with area-based fields elsewhere.
:::
:::faq-item{q="Can a landlord increase rent after one year in Dubai?"}
One year by itself does not set the amount. The index result, the Decree 43 maximum band, the tenancy terms and Article 14's default 90-day notice test answer different parts of the renewal question.
:::
:::faq-item{q="What is the RERA rent calculator?"}
DLD describes its Rental Index as a service that calculates the rental increase and the average rent in the real-estate market for the required area. The service was checked 25 September 2026.
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:::callout{variant="note" title="Keep the date on the rule"}
Subscribe to withlida's newsletter for dated Dubai property guides and official-source updates, with no listings or sales pressure.
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:::callout{variant="info" title="Before you act"}
This guide is general information, not financial, legal, or investment advice. Rent-index results, thresholds, and rules change; verify the current requirements with the Dubai Land Department (DLD), RERA, the Rental Disputes Center, or a licensed professional before you commit.
:::