How to Calculate HOA Prorations at Closing
HOA prorations are a common item on real estate settlement statements, but they are also one of the most misunderstood closing adjustments.
Whether HOA dues are paid annually, quarterly, or monthly, the goal of a proration is simple:
Each party should pay only for the time they own the property.
If the seller has already paid HOA dues beyond the closing date, the buyer may need to reimburse the seller for the unused portion. If the dues have not been paid, the seller may owe the buyer.
Let’s look at how HOA prorations are calculated for annual, quarterly, and monthly dues.
What Is an HOA Proration?
An HOA proration allocates homeowners association dues between the buyer and seller based on the closing date.
The basic formula is:
HOA Amount ÷ Days in Billing Period = Per Diem
Per Diem × Remaining Days = Proration Amount
The key is determining the correct number of days in the billing period.
Annual HOA Dues Example
Suppose the annual HOA dues are:
- $260 per year
The HOA period runs:
- April 1, 2026 through March 31, 2027
The closing date is:
- July 30, 2026
Step 1: Calculate the Per Diem
Annual dues are based on 365 days.
$260 ÷ 365 = $0.7123 per day
Rounded:
$0.71 per day
Step 2: Count Remaining Days
The seller owns the property through the day of closing.
The buyer owns the property beginning after closing.
From July 31, 2026 through March 31, 2027 there are:
244 remaining days
Step 3: Calculate the Proration
244 days × $0.71 = $173.24
Result:
Buyer owes Seller $173.24
This reimbursement occurs because the seller already paid HOA dues through March 31, 2027.
Quarterly HOA Dues Example
Now let’s assume the HOA dues are:
- $260 per quarter
The quarter runs:
- July 1, 2026 through September 30, 2026
The closing date remains:
- July 30, 2026
Step 1: Determine Days in the Quarter
- July = 31 days
- August = 31 days
- September = 30 days
Total:
92 days
Step 2: Calculate the Per Diem
$260 ÷ 92 = $2.83 per day
Step 3: Count Remaining Days
From July 31 through September 30:
62 remaining days
Step 4: Calculate the Proration
62 × $2.83 = $175.46
Result:
Buyer owes Seller $175.46
Monthly HOA Dues Example
Now suppose HOA dues are:
- $260 per month
The billing period runs:
- July 1 through July 31
The closing date is:
- July 15
Step 1: Determine Days in the Month
July contains:
31 days
Step 2: Calculate the Per Diem
$260 ÷ 31 = $8.39 per day
Step 3: Count Remaining Days
From July 16 through July 31:
16 days
Step 4: Calculate the Proration
16 × $8.39 = $134.24
Result:
Buyer owes Seller $134.24
Quick HOA Proration Comparison
| Billing Frequency | HOA Amount | Per Diem | Proration Amount |
|---|---|---|---|
| Annual | $260 | $0.71/day | $173.24 |
| Quarterly | $260 | $2.83/day | $175.46 |
| Monthly | $260 | $8.39/day | $134.24 |
Common HOA Proration Mistakes
Using the Wrong Billing Period
Always verify whether the HOA fees are annual, quarterly, monthly, or another billing schedule.
Incorrect Day Counts
Prorations are highly dependent on the number of days remaining in the billing period.
Ignoring Whether Dues Are Paid
The direction of the proration depends on whether the seller has already paid the HOA fees.
- If prepaid, the buyer typically reimburses the seller.
- If unpaid, the seller may owe the buyer.
How Expert Title Escrow Agency Handles HOA Prorations
At Expert Title Escrow Agency, we carefully review HOA information and calculate prorations based on the payment schedule, closing date, and payment status.
Whether dues are annual, quarterly, or monthly, proper prorations help ensure buyers and sellers are each responsible for their fair share.
Learn more about our
title and closing services in Dayton, Ohio.
Final Takeaway
HOA prorations may seem complicated, but the math is actually straightforward once the billing period is identified.
Simply calculate the per diem rate, determine the number of remaining days in the billing period, and apply the formula.
Accurate HOA prorations help ensure a fair closing for both buyers and sellers while avoiding last-minute disputes.