Mastering Proration Calculations: Step-by-Step Guide for the Dubai RERA Exam
Last updated: April 2026
If you are preparing to become a licensed real estate broker in the UAE, mastering real estate math is non-negotiable. Among the most commonly tested mathematical concepts on the licensing test are proration calculations. Understanding how to fairly divide property expenses between a buyer and a seller is essential not only for passing your exam but for facilitating smooth property transfers at the Dubai Land Department (DLD).
This mini-article provides a comprehensive, step-by-step framework for solving proration problems specific to the UAE market. For a broader look at all the topics you need to study, be sure to check out our Complete Dubai RERA Broker Exam Exam Guide.
Understanding Proration in Dubai Real Estate
Proration is the process of proportionally dividing property-related expenses or income between the seller and the buyer based on the exact date of property transfer. Because bills and income (like annual rent or service charges) rarely align perfectly with the date a property is sold, proration ensures that neither party overpays or is shortchanged.
In the UAE, the most common items requiring proration during a secondary market transaction include:
- Service Charges: Regulated by RERA and managed through the Mollak system, these are typically paid in advance by the seller.
- Rental Income: Regulated via Ejari, rent is often paid upfront in cheques. If a property is sold with a tenant in place, the seller must refund the buyer for the portion of rent covering the period after the transfer.
- District Cooling (Capacity Charges): Fixed annual capacity charges for providers like Empower or Emicool.
Note: Standard utility bills like DEWA (Dubai Electricity and Water Authority) are generally not prorated. Instead, the seller requests a final bill and closes their account, while the buyer opens a new account.
The 4-Step Proration Calculation Method
When tackling a proration question on the RERA exam, always follow this reliable four-step formula.
Step 1: Identify the Total Amount and the Time Period
Determine the total financial amount in question and the exact period it covers. In Dubai, most proration questions involve annual figures (a 365-day year).
Step 2: Calculate the Daily Rate (Per Diem)
Divide the total amount by the number of days in the period to find the daily cost.
Formula: Total Amount ÷ Total Days = Daily Rate
Step 3: Determine the Exact Number of Days
Calculate how many days the buyer or seller is responsible for. In UAE real estate practice (and typically on the RERA exam), the Buyer owns the day of transfer. Therefore, the seller is responsible for the property up to the day before the transfer, and the buyer is responsible from the day of transfer onward.
Step 4: Multiply the Daily Rate by the Number of Days
Multiply the daily rate by the exact number of days to find the prorated amount owed by one party to the other.
Practical Scenario 1: Prorating Service Charges (Paid in Advance)
Let’s apply the four steps to a classic exam question involving Mollak service charges.
The Scenario: A seller paid the annual service charge of AED 12,000 in full on January 1st for the entire calendar year (non-leap year). The property is transferred to the buyer on April 15th. How much does the buyer owe the seller at closing?
- Step 1: Total amount = AED 12,000. Time period = 365 days.
- Step 2: Daily Rate = 12,000 ÷ 365 = AED 32.8767 per day.
- Step 3: Count the Buyer's days. Since the seller paid in advance, the buyer must reimburse the seller for the days the buyer owns the property (April 15 to Dec 31).
- April: 16 days (April 15 to April 30 inclusive)
- May: 31 days
- June: 30 days
- July: 31 days
- August: 31 days
- September: 30 days
- October: 31 days
- November: 30 days
- December: 31 days
- Total Buyer Days = 261 days
- Step 4: 261 days × AED 32.8767 = AED 8,580.82.
Answer: The buyer will be debited (charged) AED 8,580.82, and the seller will be credited (refunded) AED 8,580.82 at the time of transfer.
Service Charge Proration Split (AED 12,000/yr)
Understanding how these charges work is critical. If a seller fails to pay their service charges, it can result in a block on the transfer. To understand how unpaid debts affect property rights, read our guide on Dubai RERA liens and their priority. Additionally, you should be able to distinguish standard service charges from unexpected community levies, which we cover in our article on Dubai RERA special assessments explained.
Practical Scenario 2: Prorating Rent (Collected in Advance)
When a tenanted property is sold, the seller has usually already collected the rent via post-dated cheques (PDCs) registered in Ejari. If the seller cashed a cheque that covers a period after the sale, they must refund the buyer.
The Scenario: A property is rented for AED 146,000 per year. The tenancy contract runs from January 1st to December 31st. The seller collected the rent in a single cheque and cashed it on January 1st. The property transfers to the buyer on September 10th. How much rent must the seller credit to the buyer?
- Step 1: Total rent = AED 146,000. Time period = 365 days.
- Step 2: Daily Rate = 146,000 ÷ 365 = AED 400 per day.
- Step 3: Count the Buyer's days (September 10 to Dec 31).
- September: 21 days (Sept 10 through Sept 30)
- October: 31 days
- November: 30 days
- December: 31 days
- Total Buyer Days = 113 days
- Step 4: 113 days × AED 400 = AED 45,200.
Answer: The seller must credit the buyer AED 45,200 at closing.
Tips for the RERA Exam Math Section
The math portion of the RERA exam can be intimidating, but it is highly predictable. Here are a few tips to ensure you don't lose easy points on proration questions:
- Read the dates carefully: Pay attention to the exact month lengths. Remember the knuckle trick for remembering which months have 30 vs. 31 days.
- Who owns the day of closing? Unless explicitly stated otherwise in the exam question, standard practice dictates the buyer is responsible for the day of transfer.
- Arrears vs. Advance: Always ask yourself: "Who already has the money, and who deserves it?" If the seller paid a bill in advance, the buyer owes the seller. If the seller collected rent in advance, the seller owes the buyer.
For more insights on how the exam is structured and how many math questions you can expect, review our Dubai RERA exam format and structure overview.
Frequently Asked Questions (FAQs)
1. What calendar year does the RERA exam use for proration calculations?
Unless a question specifically mentions a 360-day banker's year (which is rare in UAE real estate exams), you should always use a standard 365-day calendar year for your calculations.
2. Who is responsible for paying property expenses on the exact day of transfer in Dubai?
In standard UAE real estate practice, the buyer is considered the owner on the day of transfer. Therefore, the buyer is responsible for service charges and is entitled to rental income starting on the exact day the Title Deed is issued.
3. Are DEWA (electricity and water) bills prorated during a DLD transfer?
No. DEWA bills are based on exact meter readings. The standard procedure is for the seller to request a final bill and clearance certificate prior to transfer, while the buyer registers for a new DEWA connection. No mathematical proration is required between the parties.
4. How are unpaid Mollak service charges handled during proration?
If a seller is in arrears (has unpaid service charges), they must clear these debts before the Developer will issue a No Objection Certificate (NOC), which is a prerequisite for the DLD transfer. Proration is then calculated based on the fact that the seller has paid up to date.
5. How is rent prorated if the tenant pays in multiple cheques?
If rent is paid in multiple cheques, you only prorate the specific cheque period during which the transfer occurs. Any uncashed post-dated cheques (PDCs) for future periods are simply returned to the tenant and replaced with new cheques made payable to the new buyer.