Bankrate's analysts have a name for what's happening: the 'hidden homeownership tax.' It's not a line item on your closing disclosure. It's what you pay every month because your lender never had to fight for your business.

Analyst Alex Gailey says the root cause is simple — and fixable. Most buyers trust a recommendation from their realtor or a family member and stop there. They submit paperwork, get a rate, and sign. What they skip is the part that could save them tens of thousands of dollars: asking someone else what they'd charge.

It's happening because lenders aren't having to compete for your business nearly as much as they should be.Alex Gailey, Analyst

The Overpayment Gap — By the Numbers

• 87% — Borrowers Overpaying
• $3,300 — Avg. Annual Extra Cost
• $78,000 — 30-Year Total Loss
• 3+ — Lenders to Compare

That $78,000 gap is what Bankrate is calling the hidden homeownership tax — and it follows you for the life of your loan. Unlike property taxes or insurance, it's invisible. There's no annual notice. The only way to know you're paying it is to find out what someone else would have charged.

The current average 30-year U.S. mortgage rate sits at 6.58%. At that rate, the difference between the best and worst offer from competing lenders can be significant. Even a fraction of a percentage point, compounded over 30 years, moves the needle by thousands.

How Lender Shopping Changes the Equation

How Much Do You Know About the Hidden Homeownership Tax?

Four questions. See how well you read the fine print.

What share of American mortgage borrowers are currently overpaying on their loan, according to Bankrate?

• About half — 50% — The real number is much higher. Bankrate found 87% of borrowers are overpaying — nearly nine in ten.
• Two-thirds — 67% — Close guess, but the reality is worse. Bankrate's research put the figure at 87% of all borrowers.
• 87% — Correct. Bankrate found 87% of borrowers are overpaying — the vast majority of American homeowners.
• Nearly all — 95% — Not quite — 87% is already a striking number. One in eight borrowers is getting a competitive rate, likely because they shopped around.

How much does the average homeowner overpay each year by not shopping around for a mortgage rate?

• Around $500 a year — The real figure is far higher. Bankrate found the average overpayment runs more than $3,300 per year.
• Around $1,200 a year — Still well below what Bankrate found. The average annual overpayment exceeds $3,300 per homeowner.
• More than $3,300 a year — Correct. Bankrate put the average annual overpayment at more than $3,300 — a cost that compounds dramatically over time.
• More than $8,000 a year — That overstates the annual figure. Bankrate found $3,300 per year on average — but even that adds up to $78,000 over 30 years.

According to Bankrate analyst Alex Gailey, what is the primary reason so many borrowers end up overpaying?

• Mortgage rates have risen too fast for buyers to react — Rate movements are a factor in any market, but Gailey's explanation is about behavior, not timing. The problem is that lenders don't have to compete for buyers who don't make them.
• Lenders don't have to compete for borrowers' business — Exactly right. Gailey said the overpayment gap exists because lenders aren't having to compete for buyers' business nearly as much as they should be.
• First-time buyers can't afford to pay for multiple loan applications — Application fees are a concern, but Gailey pointed to a behavioral root: most buyers simply go with the first recommendation and never ask anyone else for a rate.
• Credit scores lock most buyers into a single lender tier — Credit score affects your rate, but it doesn't lock you into one lender. Gailey's research found the lack of comparison shopping — not credit — is the primary driver of overpayment.

Bankrate's guidance for getting the most competitive mortgage rate recommends comparing lenders in which specific way?

• Get quotes over several weeks and take the lowest you see — Spreading quotes over weeks actually works against you — rates move daily. Gailey recommends getting quotes from multiple lenders on the same day for a true apples-to-apples comparison.
• Compare at least three lenders on the same day — Correct. Gailey specifically recommended comparing three or more lenders on the same day so that market conditions are identical and the comparison is meaningful.
• Negotiate with your realtor's preferred lender until they match the posted rate — Relying on a realtor's preferred lender is actually one of the habits Bankrate identified as a leading cause of overpayment. Going outside that recommendation is the point.
• Apply to as many lenders as possible to maximize credit inquiries — Bankrate's advice isn't to maximize applications — it's to compare at least three lenders on the same day. Quality of comparison matters more than quantity.

The good news buried in Bankrate's findings: the overpayment gap is almost entirely behavioral. Markets fluctuate. Rates are set by forces no buyer controls. But the act of comparing lenders — getting at least three quotes on the same day — is something every buyer can do before signing.

That same logic applies if you already own and are considering a refinance. Bankrate found the overpayment pattern repeats itself when homeowners refinance, often because they return to the same lender without checking whether the market has better options.

Take the recommendations, but also do your own research and do a broader market check and make sure you're comparing at least three or more lenders and ideally on the same day when you're getting that mortgage quote, because you want to have an apples-to-apples comparison as much as possible.Alex Gailey, Analyst

Common Mortgage Myths — Checked

Going with your realtor's preferred lender is usually the easiest and safest choice.

Verdict: mixed

It's easier — but not necessarily safest for your wallet. Bankrate found that trusting a single recommendation without comparing alternatives is one of the primary reasons 87% of borrowers end up overpaying.

The difference between lenders is usually just a few dollars a month — not worth the hassle.

Verdict: false

Bankrate's research found the average annual overpayment exceeds $3,300. Over a 30-year loan, that compounds to more than $78,000 — a significant sum by any measure.

Shopping around for rates only makes sense when you're buying — not refinancing.

Verdict: false

Bankrate found homeowners overpay on refinances too. The same comparison-shopping advice applies every time a borrower takes out or restructures a loan.

Comparing multiple lenders on the same day gives you a more accurate rate comparison.

Verdict: true

Analyst Alex Gailey specifically recommended same-day comparisons from three or more lenders, because mortgage rates shift daily and only same-day quotes give you a true apples-to-apples picture.

How to Stop Overpaying — Starting Today

1. Start with recommendations, then go further — A referral from a realtor or family member is a starting point — not a final answer. Use that quote as a benchmark, then seek others.
2. Get quotes from at least three lenders on the same day — Bankrate analyst Alex Gailey recommends three or more same-day quotes so you're comparing identical market conditions — an apples-to-apples picture.
3. Gather the same documents for each application — Tax returns, pay stubs, and financial records will be requested. Having them ready speeds up the process across all lenders at once.
4. Bring competing offers back to your top choice — Once you have multiple quotes, ask your preferred lender whether they can match or beat the best offer. Competition works in your favor when you create it.
5. Apply the same process if you refinance — Bankrate found overpayment on refinances is just as common. Every new loan is a new opportunity to shop — don't assume your current lender's rate is the best available.

Before You Sign — Your Rate Checklist

• Have you compared at least 3 lenders?: Bankrate's research recommends a minimum of three lenders, contacted on the same day, for a valid rate comparison.
• Are your quotes from the same day?: Mortgage rates move daily. Quotes gathered over days or weeks can't be compared directly — same-day is the standard.
• Have you asked your preferred lender to match?: Once you have a better offer in hand, bring it to your top-choice lender and ask them to beat it. You've earned that conversation.
• Refinancing? Start over with fresh quotes.: Bankrate found overpayment is just as common among refinancers who return to their original lender without shopping.

The 'hidden homeownership tax' will keep collecting as long as lenders don't have to fight for your business. Bankrate's research makes the case plainly: the buyers who escape it aren't lucky — they're the ones who made lenders compete.

At a 6.58% average rate on a 30-year loan, even a modest improvement secured through comparison shopping can compound into real money over time. The paperwork is annoying. The payoff is $78,000.

Sources & References

• Primary source: Scripps News — Emily Hanford-Ostmann
• Bankrate — Research finding that 87% of borrowers overpay, averaging $3,300 annually and $78,000 over a 30-year loan