The letter arrived in January. It was from the mortgage servicer, and it said the Nguyens' monthly payment was going up by $200. They had a fixed-rate mortgage. They hadn't refinanced. Nothing about their loan had changed. What changed was their property taxes (up $600 for the year) and their homeowners insurance (up $1,800 for the year). The escrow account that collects for those expenses needed more money.
This happens to roughly 68% of homeowners every year or two [1]. It's the single most confusing part of homeownership for people who were told their payment would "stay the same" with a fixed-rate mortgage. The principal and interest stay the same. Everything else can move.
30-Second Summary: An escrow account is a holding account managed by your mortgage servicer that collects a portion of each mortgage payment to cover property taxes and homeowners insurance when they come due. About 80% of mortgage holders have one. Your monthly payment can still change if tax or insurance costs rise.
Escrow During the Purchase vs. Escrow After Closing
The word "escrow" means two different things during a home purchase, and conflating them causes endless confusion.
Purchase escrow is the neutral third party (typically a title company or escrow agent) that holds your earnest money and manages the closing process. They receive funds, verify that all contract conditions are met, and distribute money to the right parties. Once you close, this escrow is done.
Mortgage escrow is an ongoing account that lives alongside your loan for potentially 30 years. Each month, your servicer collects extra money on top of your principal and interest to cover property taxes and homeowners insurance. When those bills come due (usually twice a year for taxes, once a year for insurance), the servicer pays them from the escrow balance.
This article is about mortgage escrow. If you're looking for how earnest money is held during the buying process, see our earnest money guide.
How an Escrow Account Works
Here's the basic flow, using the Nguyens as an example:
Annual costs the escrow account covers:
- Property taxes: $4,800/year
- Homeowners insurance: $2,400/year
- Total annual escrow need: $7,200
Monthly collection: $7,200 ÷ 12 = $600/month
Their mortgage payment breakdown:
| Component | Monthly Amount |
|---|
| Principal & Interest (fixed) | $1,500 |
| Escrow (taxes + insurance) | $600 |
| Total Monthly Payment | $2,100 |
The $1,500 goes toward paying down the loan. The $600 sits in the escrow account, accumulating until the tax or insurance bill arrives. Then the servicer writes a check from the account.
The system exists because lenders have a vested interest in making sure your property taxes and insurance get paid. If you skip the tax bill, a tax lien can take priority over the mortgage. If you skip insurance and the house burns down, the lender's collateral vanishes. Escrow eliminates both risks by taking the decision out of the homeowner's hands.
About 80% of all mortgage holders have an escrow account [1]. For most borrowers, it's required. For some, it's optional. We'll get to the opt-out rules below.
Why Your "Fixed" Payment Changes
Only 60% of homeowners with escrow accounts fully understand how they work, and 45% incorrectly believe a fixed-rate mortgage means their total monthly payment will never change [1].
Here's the reality: a "fixed-rate mortgage" fixes the interest rate, which fixes the principal and interest portion of the payment. It does not fix property taxes or insurance premiums, which are set by your county assessor and your insurance company respectively.
The average property tax on a U.S. single-family home rose to $4,172 in 2024, a 2.7% increase [2]. The average cost of homeowners insurance jumped 16% in 2024 alone, to approximately $1,951 annually [3]. When these costs rise, your escrow account needs more money, and your monthly payment goes up.
Nobody warns you about this clearly enough when you're signing the mortgage papers. The excitement of closing day drowns it out. Then January arrives with that letter, and it feels like a betrayal.
The Annual Escrow Analysis: What's Actually Happening
Your servicer performs an annual escrow analysis, typically in the fall or early winter. They project next year's tax and insurance costs, compare them to what the account is currently collecting, and send you one of three results:
Surplus: The account has more than $50 extra. Federal law requires the servicer to refund you the overage [4]. You get a check.
On target: Collections roughly match projected disbursements. Nothing changes.
Shortage: The account doesn't have enough to cover projected costs. This is the letter the Nguyens got.
The Nguyens' Shortage, Step by Step
Their prior year escrow was collecting $500/month ($6,000/year) to cover $4,200 in taxes and $1,800 in insurance. That worked fine.
Then both costs increased:
- Property taxes: $4,200 → $4,800 (+$600)
- Homeowners insurance: $1,800 → $2,400 (+$600)
- New annual escrow need: $7,200 (up from $6,000)
The account is $1,200 short of where it needs to be (it was undercollecting by $100/month for 12 months). Plus, it now needs to collect $600/month going forward instead of $500.
Option 1: Pay the shortage in a lump sum.
Write a check for $1,200 now. New monthly payment: $1,500 (P&I) + $600 (new escrow base) = $2,100.
Option 2: Spread the shortage over 12 months.
The $1,200 shortage is divided by 12 ($100/month) and added to the payment.
New monthly payment: $1,500 + $600 + $100 = $2,200 (for one year, then drops to $2,100).
That's the "double whammy" homeowners feel: paying the new higher rate AND paying back last year's deficit. It's entirely normal. It just doesn't feel normal when the letter arrives.
The Two-Month Cushion Rule
Federal law (RESPA, specifically 12 CFR § 1024.17) limits the "cushion" a servicer can keep in your escrow account to no more than one-sixth of the total annual disbursements [4]. That works out to about two months' worth of escrow payments.
On the Nguyens' $7,200 annual escrow, the maximum cushion is $1,200 (two months × $600). The servicer can require the account to maintain this balance at all times. This cushion absorbs small fluctuations so you don't get a shortage letter every time a tax bill is $47 higher than projected.
If your escrow account has a surplus of more than $50, the servicer must refund it within 30 days of the annual analysis [4]. If you think your cushion is too high, request an escrow analysis. You have the right to one per year.
Can You Opt Out of Escrow?
Yes, but there are conditions. Fannie Mae's guidelines generally require at least 80% loan-to-value (20% equity) to waive escrow [5]. And Fannie Mae typically charges a loan-level price adjustment (LLPA) for the waiver [6], which translates to either a slightly higher interest rate or an upfront fee.
| Requirement | Typical Threshold |
|---|
| Loan-to-Value | 80% or less (20% equity) |
| Escrow Waiver Fee | LLPA varies; check with your lender |
| Payment History | Current, no late payments |
| Loan Type | Conventional only (FHA and VA generally require escrow) |
Without escrow, you're responsible for paying property taxes and insurance directly. That means budgeting for a $4,800 tax bill that comes twice a year (two payments of $2,400) and an annual insurance premium of $2,400. For disciplined savers, this works fine. For everyone else, the forced savings of escrow is a feature, not a bug.
Do Lenders Pay Interest on Your Escrow Money?
Usually no. But this is slowly changing.
About 13–15 states have laws requiring mortgage servicers to pay interest on escrow accounts. In 2024, the Supreme Court's decision in Cantero v. Bank of America [7] addressed whether national banks must follow state interest-on-escrow laws. The Court didn't give a definitive yes or no. Instead, it sent the case back for a more nuanced analysis, leaving the question partly unresolved.
If you live in a state with an escrow interest law (California, Connecticut, Iowa, Maine, Maryland, Massachusetts, Minnesota, New Hampshire, New York, Oregon, Rhode Island, Utah, Vermont, or Wisconsin), check whether your servicer is complying. The interest rate is typically low (0.25%–2%), but on a $7,200 annual balance, even modest interest adds up over 30 years.
For most homeowners in most states, the answer is still: no, your escrow money earns nothing while it sits in the account. It's an interest-free loan from you to your servicer.
What to Do
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Read your annual escrow analysis statement. It arrives once a year and tells you exactly what's happening with your money. Don't ignore it. If you see a shortage, decide immediately whether to pay it in a lump sum or absorb the higher monthly payment.
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Challenge your property tax assessment. If your property tax jumped significantly, the assessment may be incorrect. Most counties have a formal appeal process. A successful appeal reduces your taxes AND your escrow payment.
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Shop your homeowners insurance annually. Insurance premiums have risen 16% in a single year [3]. Get quotes from at least three carriers (State Farm, USAA, Lemonade, whoever serves your area). Switching to a policy that's $400 cheaper reduces your escrow by $33/month. Your servicer doesn't shop for you. You have to do it yourself.
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Ask about escrow waivers once you reach 20% equity. Eliminating escrow gives you control of the timing and investment of those funds. But be honest with yourself: if you won't save the money separately, escrow is protecting you from yourself.
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Set your own escrow "alert." When you buy a home, note your initial escrow amount. Check it against your actual tax and insurance bills each year. If the servicer is over-collecting, request an analysis and a refund. If they're under-collecting, start saving now for the adjustment.
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Factor escrow into your affordability calculation. Your monthly housing cost isn't just principal and interest. It's P&I plus taxes plus insurance plus PMI (if applicable). Use our mortgage calculator to see the full picture before you shop for homes. And if you're weighing whether to pay down debt to improve your DTI ratio and credit profile, that effort can shrink both your rate and your escrow-funded insurance costs.
References
- LERETA. (2025). Annual Escrow Awareness Survey Reveals Impact of Rising Property Taxes and Homeowners Insurance. PR Newswire. https://www.prnewswire.com/news-releases/annual-escrow-awareness-survey-reveals-impact-of-rising-property-taxes-and-homeowners-insurance-302355903.html
- ATTOM Data Solutions. (2025). Average Property Tax Amount on Single-Family Homes Up 2.7 Percent Across U.S. in 2024. ATTOM. https://www.attomdata.com/news/market-trends/home-sales-prices/2024-annual-tax-report/
- Forbes Advisor / Quadrant Information Services. (2025). Average Cost of Homeowners Insurance. Forbes. https://www.forbes.com/advisor/homeowners-insurance/average-cost-of-homeowners-insurance/
- Code of Federal Regulations. (2024). 12 CFR § 1024.17 — Escrow Accounts. eCFR. https://www.ecfr.gov/current/title-12/chapter-X/part-1024/section-1024.17
- Fannie Mae. (2024). B2-1.5-04: Escrow Accounts. Fannie Mae Selling Guide. https://selling-guide.fanniemae.com/sel/b2-1.5-04/escrow-accounts
- Fannie Mae. (2025). Loan-Level Price Adjustment (LLPA) Matrix. Fannie Mae. https://singlefamily.fanniemae.com/media/9391/display
- Supreme Court of the United States. (2024). Cantero v. Bank of America, N.A. (Opinion of the Court). https://www.supremecourt.gov/opinions/23pdf/22-529_1b7d.pdf
