Why My Mortgage Went Up: Key Factors and Solutions for Veterans

Last updated April 11, 2026 by Tim Stacey, Stacey Solutions powered by Xpert Home Lending, Inc NMLS 2179191.

Your Principal and Interest Did Not Change

If you have a fixed-rate mortgage, the principal and interest portion of your monthly payment is locked in for the life of the loan. That number does not change. So when your total payment goes up, the increase is coming from somewhere else in your escrow account. Your mortgage servicer collects property taxes and homeowner’s insurance on your behalf each month, holds the funds in escrow, and pays those bills when they come due. When those costs rise, your monthly payment rises with them.

I see this catch homeowners off guard regularly, especially in Solano County where property tax reassessments and insurance rate increases have been hitting harder over the last couple of years. The payment change is real, but it is not your lender raising your rate. It is your county or your insurance company raising their charges.

Property Tax Increases

Property taxes are the most common reason mortgage payments go up. In California, Proposition 13 limits the base tax rate to 1% of your assessed value, with annual increases capped at 2%. But supplemental tax assessments, voter-approved bond measures, and Mello-Roos fees can push your effective rate well above that baseline.

If you purchased your home in Vacaville or Fairfield recently, you may have received a supplemental tax bill that your escrow account was not set up to cover. When the servicer catches up, they adjust your monthly escrow collection upward to cover the shortfall and build a cushion for next year. That adjustment shows up as a higher mortgage payment.

You can check your property tax assessment through the Solano County Assessor’s website. If the assessed value looks wrong or you believe you qualify for an exemption you are not receiving, filing an appeal or applying for the homeowner’s exemption can reduce your tax bill and bring your payment back down.

Homeowner’s Insurance Premium Increases

Insurance premiums across California have been climbing steadily, and Solano County is no exception. Carriers have raised rates in response to wildfire risk, inflation in rebuilding costs, and reinsurance market pressures. Even if you have never filed a claim, your annual premium may have jumped 20% to 40% at renewal.

When your insurance premium goes up, your servicer increases your escrow payment to match. A $1,200 annual increase in your insurance premium translates to $100 more per month in your mortgage payment. If your servicer also identifies an escrow shortage from the prior year, they may spread that catch-up amount across the next 12 months, making the increase feel even larger.

Shopping your insurance annually is one of the most effective ways to control this. I recommend getting quotes from at least three carriers before your renewal date. Bundling home and auto, raising your deductible, or making fire-hardening improvements to your property can all bring the premium down.

Escrow Account Shortages and Adjustments

Your mortgage servicer performs an escrow analysis once a year, usually around the anniversary of your loan. They compare what they collected over the past 12 months against what they actually paid out for taxes and insurance. If there is a shortage, they adjust your monthly payment upward to cover the difference and prevent another shortfall next year.

Federal law requires servicers to maintain a cushion of no more than two months of escrow payments. If your taxes or insurance went up and the servicer did not collect enough, they will spread the shortage repayment over the next 12 months and increase the ongoing monthly collection. Both of those add to your payment.

When you receive your annual escrow analysis statement, read it carefully. It breaks down exactly where the increase is coming from. If you have the cash available, you can make a lump-sum payment to cover the shortage, which prevents the repayment from being spread across your monthly payments. That alone can bring your payment back down significantly.

Adjustable-Rate Mortgage Resets

If you have an adjustable-rate mortgage, your interest rate and monthly payment can change at predetermined intervals. A 5/1 ARM, for example, holds a fixed rate for the first five years and then adjusts annually. When rates have risen since you closed, that adjustment can be substantial.

ARM adjustments are tied to an index plus a margin. When the index rate goes up, your rate follows. Most ARMs have caps that limit how much the rate can increase at each adjustment and over the life of the loan, but even a 2% cap on a single adjustment can translate to hundreds of dollars more per month.

If your ARM is approaching its first adjustment or has already reset, refinancing into a fixed-rate loan may be worth exploring. I help homeowners near Travis AFB and across Solano County evaluate whether locking in a fixed rate makes sense given their current balance, remaining term, and how long they plan to stay in the home.

Temporary Rate Buydown Expirations

If your seller or builder paid for a temporary rate buydown when you purchased, your initial payments were artificially lower. A 2-1 buydown reduces your rate by 2% in year one, 1% in year two, and then reverts to your full note rate in year three. When that buydown period ends, the jump can feel dramatic even though it was built into your loan from the start.

I always make sure my clients understand the full payment schedule before closing on a buydown. If your payment just jumped and you purchased within the last two or three years with builder incentives, check your original loan documents. The buydown schedule will show you exactly when each increase was planned.

Mortgage Insurance Changes

If you put less than 20% down on a conventional loan, you are paying private mortgage insurance. PMI rates can change at renewal, and the amount is recalculated if your loan balance or property value changes. FHA mortgage insurance premiums are fixed for the life of the loan on most current FHA loans, so those should not change.

The good news is that conventional PMI can be removed once you reach 20% equity based on the original value, or 25% equity based on current value if you request early cancellation with a new appraisal. Dropping PMI can offset other payment increases and bring your total monthly cost back in line with what you budgeted.

What You Can Do About It

Start by reading your escrow analysis statement. It tells you exactly which line items increased and by how much. From there, you have several options: shop your insurance, appeal your property tax assessment, make a lump-sum escrow payment, request PMI removal if you qualify, or explore refinancing if your rate is no longer competitive.

If you are not sure where to start, I am happy to review your statement with you. I work with homeowners across Vacaville, Fairfield, Suisun City, and the greater Solano County area, and sometimes a quick look at the numbers is all it takes to find real savings.

Frequently Asked Questions

Can my mortgage payment go up if I have a fixed-rate loan?

Yes. Your principal and interest stay the same, but your total payment can increase if property taxes, homeowner’s insurance, or other escrow items go up. The escrow portion of your payment is reviewed annually and adjusted as needed.

How do I find out why my payment increased?

Your mortgage servicer sends an annual escrow analysis statement that breaks down every line item. It shows what was collected, what was paid out, and where any shortages exist. That document is the fastest way to identify exactly what changed.

Can I lower my mortgage payment without refinancing?

Yes. Shopping for a lower insurance premium, appealing your property tax assessment, making a lump-sum escrow shortage payment, or requesting PMI removal are all ways to reduce your payment without refinancing.

What is an escrow shortage and how does it affect my payment?

An escrow shortage occurs when your servicer paid out more for taxes or insurance than they collected from you. They spread the repayment over the next 12 months and increase your ongoing collection, both of which raise your monthly payment.

Should I refinance if my ARM rate just adjusted higher?

It depends on the current fixed rates, your remaining loan balance, and how long you plan to stay in the home. If fixed rates are lower than your adjusted ARM rate or close to it, locking in could save you money and eliminate future adjustment risk. I can run the comparison for you.

Let’s Figure Out What Changed

A payment increase does not have to be permanent. Once we identify what is driving it, there are usually steps you can take to bring it back down. If you are a homeowner in Vacaville, Fairfield, Suisun City, or anywhere in Solano County and your mortgage payment just went up, reach out for a free review. I will walk through your escrow statement with you and help you figure out the best path forward.