Your Mortgage Payment Went Up and Your Rate Did Not Change

A letter arrives from the servicer. The monthly payment is going up by a meaningful amount, effective next month, and nothing about the loan has changed. The rate is the rate it has always been; the term is untouched. This is the single most common piece of post-closing confusion in homeownership, and the explanation is entirely mechanical.

Your payment is four things, and only two of them are fixed

A fixed-rate mortgage fixes principal and interest. That number genuinely never changes.

The bill you actually pay is usually principal, interest, taxes and insurance — the escrow portion. The servicer collects a twelfth of the annual tax and insurance cost with each payment, holds it, and pays the town and the insurer when the bills fall due. Your property tax and your premium both move, so the total moves with them, on a fixed-rate loan, permanently.

Mortgage insurance sits in there too where you have it, and a condominium fee usually does not — that is normally paid directly to the association, which is one reason a condominium's true monthly cost is easy to understate. Condominium fees and what they cover has the rest of that.

Why the escrow figure moves in Massachusetts

Three reasons, in descending order of how often they are the culprit:

The property tax bill changed. Assessments are updated on a fiscal year, the rate is reset annually, and an override or a debt exclusion approved at town meeting changes the levy itself. How Massachusetts property tax works explains why the rate alone does not tell you the bill, and why a falling rate can accompany a rising one.
The insurance premium went up. Renewals move, and in coastal and older housing stock they have been moving. The home insurance guide covers what drives it.
The first year was estimated, and estimated low. The most common cause of a large increase in year two, and the one worth understanding in detail.

The new-construction trap

This catches buyers of new houses every year and it is worth stating on its own.

At closing on a newly built house, the tax figure available to everyone is the tax on the land — because the house did not exist when the assessment was made. The escrow is funded against that number. Some months later the town assesses the completed house, the bill multiplies, and the escrow account is suddenly short by most of a year's difference.

The result is a double increase: a higher monthly escrow going forward, plus the shortage from the months already past. If you are buying new construction, ask the lender to estimate against the finished assessed value and put money aside regardless. Buying new construction covers the rest of what is different about those transactions.

What the annual escrow analysis is doing

Once a year the servicer reconciles: what came in, what went out, and what next year's disbursements are projected to be. The account must hold enough to pay each bill as it falls due, and federal rules — the escrow provisions implementing RESPA — permit the servicer to hold a cushion of up to one sixth of the year's projected disbursements, which is two months.

If projected costs have risen, two things happen at once, and conflating them is why the letter reads as worse than it is:

1.The going-forward monthly escrow rises to cover the new annual total.
2.A shortage is collected for the gap that already opened. You may usually pay it as a lump sum or spread it over twelve months — spreading it is why the increase sometimes looks alarming and then partially reverses a year later, once the shortage is paid off.

If costs fell, the mirror image happens and you get a surplus refunded, which is less memorable.

What to actually check when the letter arrives

1.Read the analysis statement, not just the new payment. It itemises what the servicer expects to pay and when.
2.Check the tax figure against your actual bill from the town. Servicer errors happen — a wrong parcel, an exemption not applied, a betterment counted as an annual charge.
3.Check whether an exemption is missing. Residential exemptions, and exemptions for seniors, veterans and others, are applied by the town but have to be claimed. If you qualify and are not receiving one, that is real money and the deadline matters.
4.Check the insurance figure against your renewal, and shop the policy if it has jumped. The servicer pays whatever your insurer bills; it has no view on whether the premium is reasonable.
5.Ask how the shortage is being collected, and choose deliberately between the lump sum and the spread.
6.Confirm the cushion being held is within the two-month limit.

Can you get rid of escrow entirely?

Sometimes. Many lenders will waive escrow at or after closing on a conventional loan with sufficient equity, occasionally for a small rate adjustment. Government-backed loans generally will not.

Whether you should is a question about you rather than about the loan. Paying a large tax bill quarterly and an insurance premium annually out of your own account is cheaper only if the money is genuinely there on the day. A missed property tax bill is a municipal lien on your house and ranks ahead of the mortgage, which is precisely why lenders prefer to hold the money themselves.

Buying rather than owning

If you are still shopping, the point of all this is that the payment quoted early in a pre-approval is principal and interest against an estimated tax line, and the tax line varies enough between neighbouring Massachusetts towns to move a comfortable house into an uncomfortable one at the same price. Run the full figure for the specific address — the calculators take taxes and insurance — and budget for the escrow to rise every year, because it will.

That is not pessimism. It is the one line of the payment that is not fixed, and knowing it moves is the difference between a letter that is annoying and a letter that is a problem.