What Is Escrow on a Mortgage and How Does It Work?

A mortgage escrow account is a holding account your lender or servicer sets up to collect money from each monthly mortgage payment and use it to pay property-related bills on your behalf, mainly property taxes and homeowners insurance. Instead of writing a large check once or twice a year, you pay a little each month, and the servicer pays the bills when they come due. The arrangement protects you from falling behind on large lump-sum bills and protects the lender from losing its collateral to a tax lien or an uninsured loss.

What the Account Pays For

Property taxes and homeowners insurance are the two staples. Unpaid property taxes can turn into a government lien that outranks the mortgage, and a lapse in insurance leaves the home uninsured, so lenders have a direct interest in making sure both stay current.

Several other costs commonly run through the same account:

Private mortgage insurance (PMI) on a conventional loan when you have less than 20% equity.
FHA mortgage insurance premiums (MIP), which FHA guidelines require be paid through escrow for the life of most loans.
Flood insurance, if the property sits in a federally designated high-risk flood zone.

Two items are worth flagging because they trip people up. Homeowners association dues are almost never escrowed; they come from a private contract with the association, not a public lien, so the servicer has no stake in paying them. Supplemental property tax bills, which the county may issue after a sale to catch up a reassessed value, usually go directly to you and are not paid automatically from escrow. If you want your servicer to handle a supplemental bill, you generally need to send it to them and ask.

How Your Monthly Escrow Payment Is Calculated

Your servicer adds up the estimated annual cost of every item it will pay from the account and divides by twelve. That figure is added to your principal and interest to produce one combined monthly payment. If your annual property taxes are $4,800 and homeowners insurance runs $1,200, the escrow portion comes to $500 a month before any cushion.

Federal law lets the servicer keep a cushion in the account to absorb unexpected cost increases. Under Regulation X, that cushion can be as much as one-sixth of the total annual disbursements, which works out to roughly two months of escrow payments.¹ On the $6,000 example above, that’s up to $1,000 held in reserve.

The Initial Deposit at Closing

When you close on the loan, the servicer collects an upfront escrow deposit on top of your down payment and closing costs. It covers the gap between when taxes or insurance were last paid and when enough monthly payments will have accumulated to cover the next bill. Without it, the account would start in the red because bills tend to come due before monthly contributions can catch up.

The amount depends on where your closing falls in the local tax cycle, and the servicer can add the same one-sixth cushion on top.¹ Your closing disclosure itemizes exactly how many months of taxes and insurance are being pre-collected, so read that line carefully. First-time buyers who have budgeted precisely for the down payment are sometimes caught off guard by it.

The Annual Escrow Analysis

At least once a year, your servicer runs an escrow analysis that compares what came in against what went out, resets the cushion, and decides whether your monthly payment needs to change. Taxes move, insurance premiums move, and the account has to keep up. The analysis puts you into one of three categories, and the rules differ for each.

Surpluses

A surplus means the account collected more than it needed. If the surplus is $50 or more, the servicer must refund it to you within 30 days of the analysis. If it’s less than $50, the servicer can either send you a check or credit it toward next year’s payments.¹ You have to be current to get the refund; if your mortgage is more than 30 days past due at the time of the analysis, the servicer can hold the surplus under your loan documents.

Shortages

A shortage means the balance is still positive but below the target the servicer needs. The repayment rules depend on how big the shortage is compared to one month’s escrow payment:

If the shortage is less than one month’s escrow payment, the servicer can require repayment within 30 days, spread it over at least 12 months, or simply absorb it.
If the shortage is one month’s escrow payment or more, the servicer cannot demand a lump sum. It must either absorb the shortage or spread repayment over at least 12 months of increased payments.

That 12-month floor is a real consumer protection. A $1,500 shortage from a tax jump doesn’t turn into a demand letter next week; it gets folded into your monthly payment over the following year.¹

Deficiencies

A deficiency is worse: the account has a negative balance because the servicer had to advance its own funds to cover a bill. The repayment rules mirror those for shortages, with one difference. For a larger deficiency (one month’s payment or more), the servicer can require repayment over two or more months rather than the 12-month minimum that applies to shortages.¹ Most servicers still offer a reasonable timeline in practice, but they have more flexibility here.

Can You Opt Out of Escrow?

Not always, and it depends on the loan.

FHA loans require escrow for the life of the loan, with very limited exceptions. VA loans have no federal escrow mandate, but individual lenders almost universally require it. On a conventional loan backed by Fannie Mae, you can request a waiver once your loan balance drops below 80% of the original appraised value, provided you’ve had no late payments in the past 12 months and no 60-day delinquency in the past 24.² Even if you qualify, the servicer can deny the request if you previously had a waiver and missed payments, or if you’ve received a loan modification.

Waiving escrow often costs something. Some lenders charge a one-time fee of around 0.25% of the remaining loan balance to remove the requirement, which is $750 on a $300,000 balance. Others price a no-escrow option into a slightly higher interest rate at origination. The math only works if you’re disciplined about setting aside tax and insurance money each month and the fee or rate bump doesn’t swallow whatever benefit you gain from holding the funds yourself.

One piece you generally cannot peel off separately is mortgage insurance. Even on a conventional loan where the rest of escrow is waived, PMI payments typically stay escrowed.²

When Something Goes Wrong

Servicers are legally required to pay escrowed bills on time, even if the account is temporarily short. Under Regulation X, the servicer must advance its own funds to cover a disbursement as long as your payment is no more than 30 days overdue.¹ If the servicer misses a tax payment and you get hit with penalties, or lets your insurance lapse, that’s on them.

You have a formal dispute process. Send a written “notice of error” to the address your servicer designates on your monthly statement. The servicer must acknowledge it within five business days and resolve it within 30 business days, with one allowed 15-business-day extension if the servicer notifies you in writing before the original 30 days are up.³ If the servicer ignores the notice or refuses to fix the problem, federal law lets you recover actual damages plus additional damages for a pattern of noncompliance, along with attorney fees.⁴

Force-Placed Insurance

If your homeowners insurance lapses for any reason, the servicer will buy what’s called force-placed insurance on the property. It protects the lender’s interest, not yours, and it typically costs significantly more than a standard homeowners policy while covering less.⁵

Before charging you for it, the servicer must send a written notice at least 45 days in advance, then a reminder. You have 15 days after that second notice to show proof of your own coverage; if you do, the servicer must cancel the force-placed policy and refund any overlapping premiums.⁵ Having insurance paid through escrow sharply reduces the odds of ever getting one of those notices.

Taxes and Interest on the Money in the Account

Two things homeowners often get wrong. First, the money you deposit into escrow each month is not tax-deductible when you deposit it. You can only deduct property taxes in the year the servicer actually pays them to the taxing authority. Your annual property tax bill or year-end mortgage statement shows the amount actually paid, which is what you use on your return. The itemized deduction for mortgage insurance premiums has expired and is not available for the 2025 tax year.⁶

Second, your escrow balance can run into thousands of dollars, but there is no federal requirement that the servicer pay you interest on it. Roughly a dozen states require interest to be paid on escrow balances, usually at modest rates set in the loan documents or by the state banking regulator. Everywhere else, the servicer keeps the interest. If you’re weighing a waiver against the convenience of escrow, the real comparison is what you could earn and whether you’d keep the discipline, not the interest a state formula might generate.

1
Consumer Financial Protection Bureau. 12 CFR Part 1024 (Regulation X) – 1024.17 Escrow Accounts
2
Fannie Mae. Administering an Escrow Account and Paying Expenses
3
Consumer Financial Protection Bureau. 12 CFR Part 1024 (Regulation X) – 1024.35 Error Resolution Procedures
4
Office of the Law Revision Counsel. 12 U.S. Code 2605 – Servicing of Mortgage Loans and Administration of Escrow Accounts
5
Consumer Financial Protection Bureau. 12 CFR Part 1024 (Regulation X) – 1024.37 Force-Placed Insurance
6
Internal Revenue Service. Publication 530 (2025) – Tax Information for Homeowners