Why Do You Have to Prepay Property Taxes at Closing?

When you close on a home with a mortgage, you prepay property taxes at closing for two separate reasons: to settle up with the seller for the portion of the current tax period that belongs to each of you, and to fund the escrow account your lender will use to pay future tax bills on your behalf. Together these line items often add up to several thousand dollars, and the size depends almost entirely on where your closing date falls in the local tax cycle.

Two Different Charges Hiding Under One Label

The money labeled “property taxes” on your settlement statement is really two transactions stacked together. One is a one-time adjustment between you and the seller. The other is a deposit to start a reserve account that belongs to your mortgage servicer. They show up in different sections of the Closing Disclosure, follow different rules, and are sized by completely different math.

The adjustment with the seller is called a proration. Property taxes cover a fixed assessment period, but closings rarely line up with the start or end of that period, so the bill gets split by the days each party owned the home. For federal tax purposes, the IRS treats the seller as paying taxes up to but not including the date of sale, and the buyer as paying beginning on the date of sale.1Internal Revenue Service. Publication 530 (2025), Tax Information for Homeowners Local customs sometimes split the day differently, but the IRS rule governs who gets to claim the deduction.

Which direction the cash flows depends on whether the current tax bill has been paid yet. If the seller already paid the whole year, you reimburse them for the months you’ll own the home. If taxes are still outstanding, the seller’s share is pulled from their sale proceeds and credited to you so you have the money ready when the bill arrives. Either way, the taxing authority eventually gets paid in full and on time.

Why the Lender Insists on an Escrow Account

The larger charge at closing funds an escrow account, and the reason your lender insists on it is pure self-protection. A property tax lien outranks a mortgage lien. If you fell far enough behind on taxes for the county to place a lien and ultimately sell the property, that tax sale could wipe out the lender’s security interest entirely.2Internal Revenue Service. IRM 5.17.2 Federal Tax Liens – Section: Real Property Tax and Special Assessment Liens

An escrow account removes that risk by taking the tax payment out of your hands. Each month your mortgage servicer collects roughly one-twelfth of the annual tax bill as part of your mortgage payment, holds the funds, and pays the county directly when a bill comes due. You never write a separate check for property taxes. The tradeoff is that the account has to be funded up front, and that upfront deposit is what makes your closing costs look so steep.

How the Initial Escrow Deposit Is Sized

The initial deposit has two components. Once you see them separately, the total stops looking arbitrary.

The first is gap funding. Your servicer needs enough cash in the account to pay the first tax installment that comes due after closing. You’ll be making monthly escrow contributions along the way, but if that first installment hits in two or three months, those few payments won’t cover it. The initial deposit fills the gap so the account can meet the bill on time.

The second is a federally capped cushion. Regulation X, which implements the Real Estate Settlement Procedures Act, lets your servicer collect a reserve of no more than one-sixth of the estimated total annual escrow disbursements.3Consumer Financial Protection Bureau. 12 CFR 1024.17 – Escrow Accounts One-sixth of a year is two months, so the maximum cushion equals two months of tax and insurance payments. The buffer protects the servicer against unexpected tax hikes and timing hiccups.

The deposit is sized so the running account balance never drops below zero at any point during the year, and then the two-month cushion is added on top. The closer your closing lands to a major tax installment, the less gap funding you need because fewer monthly payments have to catch up. Close right after a tax installment is paid and the gap is wider, so the deposit is larger. Close right before one and your monthly payments do more of the work.

A Worked Example

Say you close on March 1. The annual tax bill is $6,000, payable in two $3,000 installments due May 1 and November 1, and the current year’s taxes haven’t been paid yet.

The daily tax rate is $16.44 ($6,000 ÷ 365). Under the IRS rule, the seller owes January 1 through February 28, which is 59 days. The seller’s share works out to $969.96 (59 × $16.44), pulled from the seller’s proceeds and credited to you on the Closing Disclosure.

For the escrow deposit, your monthly escrow payment is $500 ($6,000 ÷ 12). Between closing and the May 1 installment you’ll make two monthly payments, contributing $1,000. The servicer still needs another $2,000 to cover the $3,000 installment. Add the two-month cushion of $1,000, and the initial escrow deposit comes to $3,000.3Consumer Financial Protection Bureau. 12 CFR 1024.17 – Escrow Accounts

Net property-tax cash at closing: a $3,000 escrow deposit, offset by a $969.96 credit from the seller. Different sections of the Closing Disclosure, same checkbook.

Where to Find Each Charge on Your Closing Disclosure

Because the two charges live in different places on the form, it’s easy to miss that you’re paying for two separate things.

The proration with the seller appears on Page 3 under Summaries of Transactions, itemized as “City/Town Taxes” or “County Taxes.”4Consumer Financial Protection Bureau. 12 CFR 1026.38 – Content of Disclosures for Certain Mortgage Transactions (Closing Disclosure) Whether it’s a charge or a credit depends on whether the seller already paid the current year’s bill.

The initial escrow funding, cushion included, appears on Page 2 under Section G, labeled “Initial Escrow Payment at Closing.” That section spells out how many months of taxes and insurance are being collected and the per-month amount.4Consumer Financial Protection Bureau. 12 CFR 1026.38 – Content of Disclosures for Certain Mortgage Transactions (Closing Disclosure) If the month count looks high, measure the gap between closing and the next tax installment, add two months for the cushion, and the arithmetic should match.

Can You Skip the Escrow Deposit?

If tying up thousands of dollars in a servicer-controlled account bothers you, an escrow waiver is sometimes possible. Possible, not easy.

For conventional loans, Fannie Mae requires lenders to maintain a written escrow waiver policy, and that policy cannot rest on loan-to-value alone. The lender also has to evaluate whether you can actually handle large lump-sum tax and insurance payments on your own.5Fannie Mae. Escrow Accounts In practice, most lenders look for at least 20% equity and solid credit before they’ll consider it. Even when they say yes, a waiver usually carries a cost: a one-time fee, often 0.25% to 0.50% of the loan amount, or a small bump to your interest rate.

Government-backed loans are tighter. FHA guidelines require lenders to establish and maintain escrow accounts, with waivers available only in narrow circumstances authorized by the mortgagee.6U.S. Department of Housing and Urban Development. FHA Single Family Housing Policy Handbook VA and USDA loans take a similar line. For most buyers using government-backed financing, escrow is effectively mandatory.

Buying with cash removes the question. Without a lender there’s no escrow account; you’ll still owe the proration adjustment to settle up with the seller, but there’s no large upfront deposit to fund.

One Bill the Escrow Account Won’t Catch

Watch for the supplemental property tax bill. When a property changes hands, many jurisdictions reassess the value. If the new assessment is higher than the old one, the county issues a supplemental bill covering the difference for the rest of the tax year. These bills generally are not routed through your escrow account, and your lender may never see a copy. You’re responsible for paying them yourself, directly. Ask your settlement agent whether your area issues supplemental assessments so the bill, if it comes, doesn’t catch you off guard.