What is a mortgage escrow payment?
A mortgage escrow payment is the part of your monthly mortgage bill that doesn't touch the loan. Your servicer collects it, parks it in an escrow account, and uses it to pay your property tax and homeowners insurance when those bills come due. This escrow calculator turns those yearly bills into the monthly amount, adds any shortage or surplus from your escrow analysis letter, and shows the math behind every line.
Escrow exists because lenders don't want to find out, two years in, that the house they lent against has a tax lien or no insurance. So most lenders require it on most loans. Instead of writing a $4,800 check to the county and a $1,500 check to the insurer, you pay $525 a month and the servicer writes the checks for you.
The catch is the letter. Once a year the servicer runs an escrow analysis and mails you the result. It usually says the payment is going up, and it rarely explains why in numbers you can check at the kitchen table. That's the gap this page fills.
How to use the Escrow Calculator
You need two numbers to start, both on your escrow letter or your last tax and insurance bills. The whole thing takes about 30 seconds.
- Type your yearly property tax. Use the full-year amount, not one installment.
$4,800,4,800and4800all read the same. - Type your yearly homeowners insurance premium. If you leave one of the two blank, it counts as $0.
- If the servicer also pays flood insurance or mortgage insurance from escrow, put the yearly total in Other escrowed items.
- Read the monthly escrow. It updates as you type. There's no Calculate button to press.
- If your letter lists a shortage or a surplus, pick it from the From your escrow analysis letter menu and type the amount.
- Optionally, add your monthly principal and interest to see the whole payment.
Under the monthly figure you'll see the annual total, the largest cushion federal rules allow, and (if you picked one) what the shortage or surplus means for you. The Copy button grabs the monthly figure so you can hold it up against your statement.
How escrow is calculated
The formula is short. Your servicer's letter may run to three pages, but the arithmetic underneath is this:
Monthly escrow = (annual property tax + annual insurance + other escrowed bills) ÷ 12
With a shortage: monthly escrow = (annual bills + shortage) ÷ 12
Maximum cushion = annual bills ÷ 6
The annual bills are everything the servicer pays out of the account in a year. The shortage is the gap between what the account will hold and what it needs to hold, and servicers usually spread it over the next 12 payments. The cushion is a buffer the servicer may keep in the account. Under RESPA (Regulation X, 12 CFR 1024.17) it can't be more than one-sixth of the year's bills, which is two months' worth.
A worked example: the insurance renewal
Say your property tax is $4,800 a year and your insurance was $1,500. That's $6,300 a year, or $525.00 a month.
Then the insurer renews at $2,100. The new yearly total is $6,900, so the ongoing escrow becomes $575.00 a month. But you spent the last year paying $525, which was set for the old bill. Your account comes up $600 short. The servicer spreads that $600 over 12 months:
($6,900 + $600) ÷ 12 = $625.00 a month.
So a $600 insurance increase moves your escrow from $525 to $625 in year one. That's a $100 jump for a $50-a-month bill increase, and it's the part that makes people call their servicer. In year two, once the shortage is repaid, the payment settles at $575. The cushion rises too: $6,900 ÷ 6 = $1,150 at most.
If your principal and interest is $2,129.21, the year-one total payment is $2,754.21, and it drops to $2,704.21 once the shortage is gone.
Why the calculator rounds once
The Escrow Calculator adds the shortage to the yearly total before dividing, then rounds to the cent a single time. That can differ by a penny from rounding each piece first. On $2,000 of bills with a $5 shortage, $2,005 ÷ 12 is $167.08. Round $166.67 and $0.42 separately and you get $167.09. A penny won't break anyone, but if you're checking a servicer's figure to the cent, you want the arithmetic done properly.
Common escrow payments by bill size
Property tax and insurance vary wildly by county and by state. Here's what the math returns for a range of typical bills. Every row comes straight from the calculator.
| Yearly property tax | Yearly insurance | Other items | Monthly escrow | Max cushion |
|---|---|---|---|---|
| $1,000 | $1,000 | $0 | $166.67 | $333.33 |
| $2,400 | $1,200 | $0 | $300.00 | $600.00 |
| $3,600 | $1,500 | $0 | $425.00 | $850.00 |
| $4,800 | $1,500 | $0 | $525.00 | $1,050.00 |
| $4,800 | $2,100 | $0 | $575.00 | $1,150.00 |
| $6,000 | $2,400 | $0 | $700.00 | $1,400.00 |
| $9,000 | $3,000 | $900 (flood) | $1,075.00 | $2,150.00 |
Two things stand out. First, every $1,200 of yearly bills adds exactly $100 a month, so you can do rough escrow math in your head. Second, the cushion is always exactly two months of escrow. If your letter shows a required balance much bigger than two months of payments, ask the servicer to itemize it.
What the shortage and surplus lines mean
| Letter says | Amount | Monthly escrow ($6,300 of bills) | What the calculator tells you |
|---|---|---|---|
| Nothing | — | $525.00 | Just the base figure |
| Shortage | $437 | $561.42 | Or pay $437.00 now and keep $525.00/mo |
| Shortage | $600 | $575.00 | Or pay $600.00 now and keep $525.00/mo |
| Surplus | $49.99 | $525.00 | Servicer can send a check or credit it to next year |
| Surplus | $50 | $525.00 | Servicer must refund it within 30 days |
A surplus never lowers the monthly figure here. The coming year's payment is set by the coming year's bills. The surplus is last year's overpayment, and it comes back to you separately.
Edge cases and limitations
The math is simple. The real world adds a few wrinkles, and it's better to know them before you argue with a servicer.
- Projected vs. actual bills. Servicers often project next year's bills with an expected increase. If you type last year's actual bills, your figure will run a little lower than theirs. Type the projected amounts from the letter instead.
- Different spread periods. This tool spreads a shortage over 12 months, which is the most common setup. A servicer may offer a longer spread. If your letter uses 24 months, the monthly bump will be smaller than what you see here.
- The first year of a new loan. The initial deposit at closing depends on how many months remain until each bill is due. That needs bill dates, so it's out of scope here.
- Zero bills. If both bills are $0, you'll see $0.00 and a note: nothing to escrow, you pay these bills yourself.
- Input limits. Each field takes 0 to $1,000,000. Negative numbers and typos like
48,00show an error rather than a wrong answer.
If your servicer's number and this one are far apart, don't panic and don't pay yet. Ask for the itemized projected disbursements, type them in, and the gap usually explains itself. If it doesn't, you now have specific numbers to ask about, which gets a much better answer from a phone rep than "why did my payment go up?"
This is arithmetic, not legal or financial advice. The RESPA rules it quotes are federal minimums. Your loan documents and your state may add to them.
Why this calculator doesn't ask for your phone number
Search for an escrow calculator and you'll notice a pattern. Many of them are rate quotes in a costume. You type your tax bill, and before the answer appears there's a form asking for your name, email, phone, credit range and "best time to call." The number you came for sits behind someone else's sales pipeline. Others stop at dividing by 12, which is the one step you could already do, and skip the shortage, the cushion and the surplus rule that the letter is actually about.
This is the full tool. No form, no signup, no trial, no "talk to a loan officer" button. It runs in your browser, and nothing you type leaves the page. It's the same tool whether you're a first-time buyer staring at your first escrow letter, a landlord checking six of them, or a retiree on a fixed income who needs to know exactly what March looks like.
Related calculations
Escrow is one slice of the payment. For the rest of it, the mortgage calculator builds the full monthly figure from the loan amount, rate and term, including principal and interest, which you can paste back in here. If you want to see how each payment splits between interest and balance over time, the amortization calculator lays out the schedule month by month. Shopping for a house rather than living in one? The house affordability calculator shows what price range your income supports, and a county's tax rate plus an insurance quote run through this page tells you what escrow adds on top. And if a letter says your insurance went from $1,500 to $2,100, the percentage calculator puts a number on it: a 40% increase.
Frequently asked questions
Does my escrow payment reduce my loan balance?
No. Escrow money never touches the loan. It sits in a separate account and goes out to the county and your insurer. Only the principal part of your payment lowers what you owe. Paying extra into escrow doesn't shorten your mortgage.
Does an escrow account earn interest?
Usually not. Federal law doesn't require it. A handful of states require servicers to pay a small amount of interest on escrow balances for some loans. Your annual escrow statement will show it if yours does.
Can HOA dues be paid through escrow?
Rarely. Most homeowners pay HOA dues straight to the association. If your servicer does escrow them, add the yearly amount under Other escrowed items and the monthly figure will include it.
What happens to my escrow balance when I sell or refinance?
When the loan is paid off, the old servicer closes the escrow account and refunds what's left, generally within 30 days of payoff. A refinance opens a new escrow account, often funded at closing. So there's usually a stretch where you've paid into the new one before the refund from the old one arrives.
What does PITI mean?
Principal, interest, taxes and insurance, the four parts of a typical mortgage payment. Principal and interest go to the loan. Taxes and insurance go through escrow. Fill in the optional principal and interest field and the Escrow Calculator shows the full PITI total.
Will a property tax exemption lower my escrow payment?
Yes, once it shows up on your tax bill. The servicer picks it up at the next escrow analysis. If the exemption lands mid-year, the account may build a surplus. Ask the servicer for an early analysis instead of waiting for the annual one. Type the new, lower tax bill in here to see where the payment should land.