Escrow monthly estimator

How escrow works

When you carry a mortgage, your servicer usually collects 1/12th of your annual property tax and homeowners insurance every month, along with your principal and interest payment. They hold those funds in a dedicated escrow account (sometimes called an "impound account" in the Western US) and pay the tax authority and insurer on your behalf when bills come due.

The arrangement protects the lender — they want to be sure property taxes and hazard insurance get paid on time, because both can extinguish their lien position. It also protects most homeowners, who would otherwise need to budget independently for two large semi-annual or annual lump-sum payments. The downside is that escrow analysis errors are a leading cause of "surprise" mortgage payment increases.

The RESPA cushion

Federal RESPA rules let servicers keep up to a 2-month cushion in your escrow account to absorb tax-rate increases and insurance-premium increases between annual escrow analyses. This is standard — not a fee, just a reserve. You'll either pay the cushion as part of your prepaid items at closing, or it builds up over the first year as the servicer collects slightly more than 1/12th of the annual amount.

• Monthly escrow = (Annual tax + Annual insurance) ÷ 12
• Cushion = Monthly escrow × 2 (one-time reserve)
• Annual escrow analysis = recalculation each year that adjusts your monthly amount up or down based on actual tax and insurance billed

When your escrow payment changes

Three triggers, in roughly descending order of frequency:

• Tax bill went up. Reassessment, mill rate change, or a new special assessment district lifted your annual tax. Your servicer recalculates monthly escrow, and may also charge a "shortage" if the account didn't have enough to cover the higher bill.
• Insurance premium went up. Same mechanism, often triggered by claims, regional rate filings, or coverage changes.
• Cushion target shifted. When tax or insurance amounts change, the 2-month cushion target also moves, which can add a small catch-up to your monthly amount even if the bill itself didn't move much.

Worked examples

Example 1 — Standard suburban homeowner. $6,800 annual property tax, $1,800/year homeowners insurance, 2-month cushion:

• Monthly escrow: ($6,800 + $1,800) ÷ 12 = $717
• Cushion at closing: $717 × 2 = $1,433
• First-year escrow contributions: $717 × 12 = $8,600 (matches annual outflow)

Example 2 — Reassessment hit. The same homeowner sees their property tax jump from $6,800 to $8,400 after a countywide reassessment. Insurance unchanged at $1,800.

• New monthly escrow: ($8,400 + $1,800) ÷ 12 = $850 (up from $717)
• Shortage to make up over 12 months: ~$1,600 ÷ 12 = $133/month
• Total monthly bump until shortage is recovered: roughly $250

Example 3 — Comfortable cushion paying down. If the annual escrow analysis finds an overage of more than $50 over the cushion target, RESPA requires the servicer to refund the overage within 30 days. Watch your annual escrow statement; refunds happen but you have to keep an eye on it.

Common mistakes

• Treating cushion as a fee. The cushion is your money, held in trust. If you pay off the mortgage or refinance, the remaining balance is refunded to you.
• Ignoring the annual escrow statement. Servicers send an Annual Escrow Account Disclosure Statement once a year. Read it. It explains projected vs. actual disbursements, shortages, overages, and the new monthly amount.
• Assuming escrow is required. If your loan-to-value is below 80% and your loan terms allow, you can ask to waive escrow. Pros: float your tax/insurance dollars yourself, earn interest. Cons: discipline required, and some lenders charge a small rate premium for non-escrowed loans.
• Skipping insurance in the calculator. If your servicer escrows for both tax and insurance (the usual case), include both inputs. If only tax, leave insurance at $0.
• Forgetting PMI. Some loans escrow for private mortgage insurance separately. PMI is not part of property-tax escrow and is not included here — but it does add to your total monthly payment.

Frequently asked questions

What is RESPA and why does it matter?

The Real Estate Settlement Procedures Act regulates how mortgage servicers handle escrow accounts. Most importantly, it caps the cushion at two months' worth of escrow disbursements and requires an annual escrow analysis with refunds for overages over $50.

Why did my mortgage payment go up?

Almost always because escrow went up — either property tax or insurance increased, and your servicer's annual analysis recalculated the monthly amount. The principal-and-interest portion of your payment is fixed for the life of a fixed-rate loan; only escrow moves.

Can I waive escrow on a new mortgage?

Often yes, if your loan-to-value is 80% or below and the lender's program allows it. Some lenders charge a small "no escrow" fee or a slightly higher rate. FHA and VA loans typically require escrow regardless of LTV.

What happens to escrow when I refinance or sell?

The remaining escrow balance — including the unused cushion — is refunded to you within ~20 days after payoff. If you refinance, the new lender starts a fresh escrow account with its own initial deposit at closing.

Can my servicer pay the wrong amount?

Yes, and it happens more often than you'd think — especially for non-homestead properties, properties with multiple parcels, or after a reassessment that the servicer's data feed missed. Always verify your county tax record shows "paid in full" each cycle. If the servicer misses a payment and you incur penalties, RESPA requires the servicer to cover the cost.

Why do I have to "front" several months of escrow at closing?

To prepay the cushion plus a few months toward the next disbursement. The exact amount depends on when in the tax cycle you close — closing right before a tax bill comes due means a larger prepaid item; closing right after means less.

Does escrow earn interest for me?

In most states, no. A handful of states (CA, CT, ME, MD, MA, MN, NH, NJ, NY, OR, RI, UT, VT, WI, IA) require servicers to pay interest on escrow balances, usually at a state-set rate. Otherwise the float benefits the servicer.

Should I send extra to escrow each month?

Generally no. Extra payments toward principal pay down the loan; extra payments to escrow just sit there until the next disbursement. If you want a buffer for a known upcoming tax increase, talk to your servicer about a voluntary escrow shortage payment or a one-time cushion top-up.