Cost of Owning

How a Mortgage Escrow Account Works (and Why Your Payment Changes)

By Aritz Boveda · Updated October 21, 2026
Fact-checked against primary sources on October 21, 2026

An escrow account is a holding account your mortgage servicer uses to pay your property tax and homeowners insurance for you. Each month, part of your payment goes into it. Once a year the servicer reviews the account, and if your tax or insurance went up, your monthly payment goes up too, even on a fixed-rate loan. That annual review is why so many homeowners are surprised by a higher payment.

What goes into escrow

Most escrow accounts cover:

• Property tax, paid to your county or town on its schedule.
• Homeowners insurance, paid to your insurer when the policy renews.
• Flood insurance, if required.
• Mortgage insurance, on some loans.

HOA dues, utilities and maintenance are not paid through escrow. You pay those yourself.

Some lenders let you waive escrow and pay taxes and insurance directly, usually only with a larger down payment, and sometimes for a fee. Fannie Mae, for example, won’t let a servicer grant a waiver request while the balance is 80% or more of the original appraised value. FHA and USDA loans require escrow, and many other lenders require it on low-down-payment loans.

How your monthly escrow amount is set

The servicer adds up the bills it expects to pay over the next 12 months and divides by 12. It can also keep a cushion to cover unexpected increases. Under federal rules (Regulation X), that cushion can’t be more than one-sixth of the year’s total escrow payments, which is about two months’ worth. Your loan documents or state law can set a lower limit.

Example: expected property tax of $4,800 and insurance of $1,800 total $6,600 a year. Divided by 12, that’s $550 a month. The maximum cushion is $6,600 ÷ 6 = $1,100.

The annual escrow analysis

At least once a year the servicer compares what it collected with what it actually paid and projects the next year. You’ll receive an escrow statement showing one of three results:

1. Surplus

You paid in more than needed. If the surplus is $50 or more, the servicer generally must refund it within 30 days, as long as your payments are current. Smaller surpluses are usually credited toward next year’s payments.

2. Shortage

The account will run low during the coming year, usually because a tax bill or insurance premium came in higher than projected. You’ll typically be offered two options:

• Pay the shortage in one lump sum, or
• Spread it over the next 12 months (added to your monthly payment).

Federal rules limit what the servicer can demand. If the shortage is one month’s escrow payment or more, it can’t require a lump sum; it must let you repay over at least 12 months. A smaller shortage can be billed within 30 days or spread out.

3. Deficiency

The account actually went negative because the servicer had to advance money to pay a bill. If the deficiency is less than one month’s escrow payment, the servicer can ask for it within 30 days; if it’s larger, it must let you repay over 2 to 12 months.

Why the payment jumps more than the bill increase

When a bill rises, your payment rises for two reasons at once: the new, higher monthly amount for the year ahead, plus repayment of the shortfall from the year that just ended.

Example: your insurance premium rises from $1,800 to $2,400.

If your servicer keeps a cushion, the cushion target rises with the bill too, so the real shortage can be a little larger. After that year, once the shortage is repaid, the payment drops back by about $50, as long as the premium doesn’t rise again.

How to keep escrow under control

1. Read the escrow statement. Check that the tax and insurance amounts match your actual bills.
2. Watch for exemptions. If you qualify for a homestead or senior exemption, apply. A lower tax bill lowers your escrow payment at the next analysis. See how property tax is calculated.
3. Shop your insurance before renewal. If you switch insurers, tell your servicer so the right company gets paid.
4. Appeal a high assessment if your home’s assessed value is out of line with similar homes.
5. Pay a shortage in a lump sum if you can, to keep the monthly payment lower.

In short

Escrow is a convenience, not a fixed cost. Your payment follows your tax bill and insurance premium, so the most effective way to lower it is to lower those two bills: claim every exemption, appeal an inflated assessment and shop your insurance before each renewal.