Real estate prorations ensure that each party pays only the share of an expense attributable to their ownership period. They commonly appear on the settlement statement or Closing Disclosure as credits to one party and corresponding charges to the other.

For example, if a seller prepaid annual property taxes but sells the home halfway through the year, the buyer generally reimburses the seller for the portion covering the buyer’s ownership period—unless the contract or local law provides otherwise.

The Consumer Financial Protection Bureau’s Closing Disclosure rules specifically address prorated property taxes, assessments, and homeowners association dues, including adjustments for items the seller paid in advance.

Why Prorations Matter

Without prorations, one party could pay an expense that benefits the other party.

Common examples include:

• Property taxes paid annually or semiannually
• County, city, or municipal assessments
• HOA, condominium, or co-op dues
• Rent and security deposits in an investment-property sale
• Water, sewer, trash, or other utility charges
• Oil or propane remaining in a tank
• Prepaid insurance or service contracts
• Interest on an assumed loan
• Ground rent or lease payments

Prorations are not usually an additional transaction expense. They are adjustments that allocate an existing expense fairly between the parties.

The Basic Proration Formula

The standard formula is:

[
\text{Daily rate}=\frac{\text{Total bill}}{\text{Number of days in the billing period}}
]

Then:

[
\text{Prorated amount}=\text{Daily rate}\times\text{Number of days attributable to the applicable party}
]

For a monthly charge, the calculation may use either:

• The actual number of days in that month; or
• A 30-day accounting month

The governing method should come from the purchase contract, state law, settlement instructions, or established local practice. Never assume that every state or closing office uses the same convention.

Step-by-Step Method

1. Identify the expense and billing period

Determine exactly what the charge covers.

Examples:

• Property taxes: January 1 through December 31
• HOA dues: July 1 through July 31
• Rent: August 1 through August 31
• Utility bill: June 15 through July 15

Obtain the actual bill, tax statement, HOA ledger, lease, or other supporting document whenever possible.

2. Confirm the closing date and proration cutoff

The contract should establish the date through which the seller is responsible. In many transactions, the seller is responsible through the day before closing and the buyer is responsible beginning on the closing date.

Other agreements may allocate the closing day to the seller or use possession or recording time instead of the scheduled closing date.

This distinction matters. A one-day difference can be material for large annual tax bills, commercial properties, or high-rent properties.

3. Determine the number of days in the billing period

Use the actual calendar days unless the contract specifies a 30-day month or another convention.

• A 365-day year has 365 days.
• A leap year has 366 days.
• February has 28 days in most years and 29 days in a leap year.
• Months have between 28 and 31 days.

The closing statement should identify the period covered so the calculation can be audited.

4. Calculate the daily rate

Divide the total charge by the number of days in the applicable billing period.

For example, assume annual property taxes are $7,300:

[
\$7,300\div365=\$20\text{ per day}
]

5. Count the seller’s and buyer’s days

Assume the transaction closes on April 10 and the contract makes the seller responsible through April 9:

• Seller’s responsibility: January 1 through April 9
• Buyer’s responsibility: April 10 through December 31

The seller’s period is 99 days in a non-leap year:

[
99\times\$20=\$1,980
]

The buyer’s period is 266 days:

[
266\times\$20=\$5,320
]

The two amounts total the annual tax bill:

[
\$1,980+\$5,320=\$7,300
]

Seller Credit Versus Buyer Charge

The direction of the adjustment depends on whether the expense has already been paid.

When the seller prepaid the expense

If the seller paid the entire bill in advance, the buyer generally reimburses the seller for the buyer’s share.

Example:

• Seller prepaid annual taxes: $7,300
• Buyer’s share after closing: $5,320

The settlement statement may show:

• Buyer debit: $5,320
• Seller credit: $5,320

The buyer’s debit and seller’s credit offset each other in the closing accounting.

The CFPB’s Closing Disclosure guidance describes these adjustments as amounts due from the consumer to reimburse the seller for prepaid taxes or assessments, with the relevant coverage period identified.

When the expense has not yet been paid

If the bill is unpaid and the seller is responsible for the period before closing, the seller may credit the buyer for the seller’s share. The buyer may then pay the full bill after closing.

Example:

• Annual tax bill: $7,300
• Seller’s share: $1,980
• Buyer will receive the tax bill after closing

The settlement statement may show:

• Seller debit: $1,980
• Buyer credit: $1,980

This gives the buyer funds to help cover the seller’s portion when the full bill becomes due.

The exact treatment can vary if the lender collects taxes through escrow or if the contract requires the seller to pay the bill directly at or before closing.

Property Tax Proration Example

Assume:

• Annual property taxes: $9,125
• Tax year: January 1 through December 31
• Closing date: September 15
• Seller responsible through September 14
• Buyer responsible beginning September 15
• Actual-day method

The daily tax rate is:

[
\$9,125\div365=\$25\text{ per day}
]

The seller owns the property for 257 days:

[
257\times\$25=\$6,425
]

The buyer owns it for 108 days:

[
108\times\$25=\$2,700
]

If the seller already paid the full year’s taxes, the buyer would generally reimburse the seller $2,700, subject to the contract and local closing practice.

Estimated taxes

Sometimes the final tax bill is not available when the transaction closes. In that case, the settlement agent may prorate using:

• The most recent tax bill
• The current assessed value and tax rate
• A settlement-agent estimate
• A figure specified by the contract

The parties may later make a post-closing adjustment when the actual bill becomes available. The agreement should state who may request a correction, the deadline, and how supporting documentation will be provided.

HOA and Condominium-Due Prorations

HOA and condominium dues are often billed monthly, quarterly, or annually.

Assume:

• Quarterly HOA dues: $900
• Billing period: April 1 through June 30
• Closing date: May 20
• Seller responsible through May 19
• Buyer responsible beginning May 20
• 91-day quarter

Daily HOA rate:

[
\$900\div91\approx\$9.89
]

Seller’s share for April 1 through May 19, or 49 days:

[
49\times\$9.89\approx\$484.61
]

Buyer’s share for May 20 through June 30, or 42 days:

[
42\times\$9.89\approx\$415.39
]

If the seller prepaid the full quarter, the buyer may reimburse the seller approximately $415.39.

HOA prorations require special care because dues may be paid in advance, and the association may also impose:

• Transfer fees
• Resale certificate fees
• Capital contributions
• Special assessments
• Move-in or move-out fees
• Fines or unpaid account balances

A routine proration does not automatically resolve responsibility for a special assessment. The contract should specifically address whether an assessment is based on the date imposed, the date due, the period benefited, or another standard.

HOA and condo dues are among the recurring charges that may appear in the Closing Disclosure’s adjustment and escrow-related sections.

Rental-Property Prorations

For an income-producing property, the buyer and seller may prorate:

• Monthly rent
• Security deposits
• Prepaid rent
• Late fees
• Utility reimbursements
• Parking fees
• Laundry income
• Tenant credits

Assume:

• Monthly rent: $2,400
• Closing date: May 12
• Seller responsible through May 11
• Buyer entitled to rent beginning May 12
• May has 31 days

Daily rent:

[
\$2,400\div31\approx\$77.42
]

Buyer’s share for May 12 through May 31, or 20 days:

[
20\times\$77.42\approx\$1,548.40
]

If the seller collected the entire month’s rent, the seller generally credits the buyer approximately $1,548.40.

Security deposits are not income to the seller. They are typically transferred or credited to the buyer, who assumes the landlord’s obligation to return them or apply them lawfully after the tenancy ends. The closing statement should separately identify security deposits rather than combining them with rent.

Utility and Fuel Prorations

Utilities are often handled through an estimated proration because the final meter reading or bill is unavailable at closing.

A typical process is:

1. Obtain a meter reading on or near the closing date.
2. Determine the billing period and previous meter reading.
3. Estimate the seller’s consumption through the cutoff date.
4. Apply the applicable utility rate.
5. Credit or debit the appropriate party.
6. Reconcile later if the final bill differs.

For heating oil or propane, the contract may require:

• A physical measurement at closing
• A credit based on the current supplier price
• A seller-paid tank refill
• No adjustment because the fuel is included in the purchase price

The contract should specify the valuation method because fuel prices can change significantly.

Interest and Mortgage-Related Prorations

Mortgage interest is commonly paid in arrears. At a sale, the settlement agent may calculate interest owed by the seller through the payoff date.

For an assumed loan, the buyer may reimburse the seller for interest or other charges that cover a period after closing.

Prepaid interest shown in a Closing Disclosure is different from a seller-buyer proration. Prepaid interest generally covers the period from closing through the end of the month before the borrower’s regular mortgage-payment cycle begins. The CFPB identifies prepaid interest and other prepaid charges separately from adjustments for items paid by the seller in advance.

How to Read the Closing Disclosure

A buyer’s Closing Disclosure generally separates categories such as:

• Loan costs
• Taxes and other government fees
• Prepaids
• Initial escrow payments
• Other costs
• Adjustments and credits

Prorations may appear as adjustments or credits, while prepaid taxes and escrow deposits may appear in separate sections. These are not necessarily the same thing.

For example:

• A tax proration reimburses the seller or allocates responsibility between the parties.
• An escrow deposit gives the lender funds to pay future property taxes or insurance.
• A prepaid tax amount may cover a specified period before the lender’s escrow cycle begins.

The Closing Disclosure must generally be provided to the borrower at least three business days before consummation, giving the buyer time to review the figures.

Review the seller’s settlement statement separately when possible. The seller’s figures may show the same adjustment from the opposite perspective.

A Practical Proration Worksheet

Use a worksheet with these fields:

| Item | Information to record |
|---|---|
| Expense | Property tax, HOA dues, rent, utility, or other charge |
| Total bill | Full amount for the billing period |
| Billing period | Beginning and ending dates |
| Closing date | Contractual closing or cutoff date |
| Seller days | Number of days assigned to seller |
| Buyer days | Number of days assigned to buyer |
| Day-count method | Actual days or 30-day convention |
| Daily rate | Total bill divided by period days |
| Seller share | Daily rate multiplied by seller days |
| Buyer share | Daily rate multiplied by buyer days |
| Payment status | Paid, unpaid, escrowed, or estimated |
| Settlement adjustment | Buyer debit, buyer credit, seller debit, or seller credit |
| Reconciliation | Post-closing correction, if needed |

A spreadsheet can reduce errors. Useful formulas include:

```text
Daily Rate = Total Charge / Billing Period Days

Seller Share = Daily Rate * Seller Days

Buyer Share = Daily Rate * Buyer Days
```

Always round currency consistently. A common practice is to round the final dollar amount to the nearest cent rather than rounding the daily rate too early.

Common Mistakes

Using the wrong closing-date convention

The parties may disagree about whether the seller or buyer owns the closing day. Confirm the contract before counting days.

Dividing by the wrong number of days

A 365-day divisor is not correct for every monthly or quarterly bill. Use the actual billing period unless the agreement specifies a standard accounting convention.

Ignoring leap years

A closing during a leap year can produce a different daily rate for annual expenses.

Confusing tax year with billing year

Some jurisdictions bill taxes for periods that do not match the calendar year. A tax bill may cover July through June or another fiscal period.

Treating estimated taxes as final

If the tax bill is based on an estimate, preserve the right to reconcile when the actual bill is issued.

Overlooking special assessments

An HOA assessment may be distinct from ordinary dues. Review the association’s resale package, account statement, board notices, and contract provisions.

Forgetting prepaid rent and deposits

Rental-property closings require more than prorating the current month’s rent. Include deposits, prepaid rent, tenant credits, and other amounts held for tenants.

Failing to verify payment status

The same expense can produce opposite adjustments depending on whether it has already been paid. Determine whether the seller paid, the buyer will pay, or a lender escrow account will pay it.

Rounding each step inconsistently

Rounding the daily rate to multiple decimal places and then rounding each party’s amount separately can create a small mismatch. Calculate using full precision and round only the final amounts.

Assuming national rules override local practice

Proration customs vary by state, county, contract form, title company, lender, and settlement agent. Federal disclosure requirements govern how certain items are presented, but the purchase contract and applicable state or local rules determine many responsibility and allocation questions.

Practical Tips for Buyers

• Request the latest property-tax bill before closing.
• Ask whether taxes are paid in arrears or in advance.
• Confirm whether the lender’s escrow analysis includes the same tax period.
• Review HOA statements for unpaid dues and pending assessments.
• Compare the Closing Disclosure with the purchase contract.
• Ask for an explanation of every debit and credit you do not recognize.
• Keep the final settlement statement and supporting bills.
• Calendar any post-closing reconciliation deadline.

A buyer should not assume that a tax proration eliminates future tax obligations. If the buyer owns the property when the next bill comes due, the buyer may need to pay the government directly even if the seller’s share was credited at closing.

Practical Tips for Sellers

• Provide paid tax receipts, HOA ledgers, utility bills, and lease records promptly.
• Confirm the payoff date and mortgage-interest calculation.
• Identify all tenant deposits and prepaid rents.
• Check whether any special assessments are pending.
• Verify that the seller credit accurately covers the seller’s ownership period.
• Review whether an unpaid bill will be paid from proceeds or handled through a buyer credit.
• Preserve documents supporting any estimated amount.

When to Ask for a Recalculation

Request a revised proration when:

• The closing date changes.
• The final tax bill differs from the estimate.
• The HOA changes the quarterly or monthly charge.
• A bill was paid after the settlement statement was prepared.
• The title or escrow company uses a different day-count method than the contract.
• A tax exemption, reassessment, or supplemental bill changes the amount.
• A tenant’s rent or security deposit was recorded incorrectly.

Ask for the calculation in writing. A useful explanation should identify the total bill, billing dates, daily rate, number of days, and resulting credit or debit.

How Real Estate Professionals Can Improve Accuracy

Agents, transaction coordinators, and other professionals can reduce closing problems by:

1. Reviewing proration provisions when the offer is written.
2. Recording the agreed cutoff convention in the transaction file.
3. Collecting current bills early.
4. Confirming whether taxes are paid in advance or arrears.
5. Separating ordinary charges from special assessments.
6. Sending changes in closing date to the settlement agent immediately.
7. Checking that seller credits and buyer debits mirror each other.
8. Comparing the final statement against the contract and estimates.
9. Explaining estimated amounts and later reconciliation procedures.
10. Referring clients to qualified settlement, tax, or legal professionals when an issue involves state-specific law or a disputed obligation.

For agents seeking broader transaction training and practical real estate education, LeapRealEstate.com can be a useful next-step resource for building stronger closing and contract fundamentals.

Final Checklist

Before signing, confirm:

• The expense and billing period are correct.
• The closing-date cutoff matches the contract.
• The day-count method is identified.
• The daily rate is mathematically accurate.
• Seller and buyer days add up to the full billing period.
• The expense’s payment status is correct.
• Credits and debits are shown to the proper party.
• Escrow deposits are not confused with prorations.
• Special assessments and tenant deposits are addressed separately.
• Any estimated amount has a clear reconciliation process.

A correct proration is transparent, reproducible, and supported by the underlying bill. When the calculation can be recreated from the closing statement and contract, both parties have a clear record of how responsibility was allocated.

Authoritative Sources

• [Consumer Financial Protection Bureau, “TILA-RESPA Integrated Disclosure: Guide to the Loan Estimate and Closing Disclosure Forms”]
• [Consumer Financial Protection Bureau, “12 CFR § 1026.38—Content of Disclosures for Certain Mortgage Transactions”]
• [Consumer Financial Protection Bureau, “Loan Estimate and Closing Disclosure Forms and Samples”]
• [Consumer Financial Protection Bureau, “Sample Closing Disclosure”]
• [National Association of REALTORS®, “Closing”]