Should You Wait to Buy a Bigger Home So You Can Build More Equity?
Not necessarily. Waiting longer may help you build more equity in your current home, but it can also make the next home significantly more expensive, increase the size of your future mortgage, and extend your debt well into your desired retirement timeline.
The better question isn’t simply, “How much more equity can I build if I wait?” It’s: “What does waiting do to the my long-term financial plan?”
I recently had a conversation with a past client who bought her home about 18 months ago. I call my past clients every six months to keep in touch, and this particular conversation became a great example of why those check-ins matter.
Since buying the home, she has gotten married, and the two of them have begun fostering a child. As her life and family have grown, she is already thinking about needing more space for everything happening inside their home.
Funny how quickly the “perfect amount of space” changes once you add another person, a few toys, and approximately 700 items that apparently must be stored in the living room.
Her initial thought was: “We should wait another 5–10 years before buying a bigger house so we can build more equity here first.” On the surface, that sounds reasonable. More time in the house should mean more equity, a smaller mortgage balance, and a stronger perceived position for the next purchase.
But after talking it through, I think her perspective shifted for three important reasons.
1. Mortgage Amortization
Her thought was to keep the current loan until they were further along in paying it down.
The perspective I shared was that whenever they buy the larger home, they will start the mortgage process all over again. During the early years of a mortgage, a larger portion of each monthly payment goes toward interest rather than principal. This is because interest is paid on the outstanding loan balance, so when the loan is brand new and a higher amount, there is more interest accrued. Over time, the balance gradually declines and more of the payment begins going to pay down the principal balance.
Under her original plan, they could spend several more years paying a large portion of the interest on the current mortgage, sell the home, and then start a brand-new 30yr mortgage from the beginning.
In other words, they would get farther along in one amortization schedule just in time to reset the clock on another one.
This doesn’t automatically mean they should move immediately. It simply means that “waiting to get farther into the mortgage” may not create as much long-term benefit as it appears to.
2. Home Appreciation
Her current home is worth about $400,000, while the type of home she would want today is selling for around $550,000.
Based on appreciation in her market, that $550,000 home could be worth approximately $670,000 in five years, assuming roughly 4.3% annual appreciation, which is typical in her ZIP code right now. That means the home she is saving toward may also be moving farther away financially.
Yes, her current home would likely appreciate during that time too, but the more expensive home is growing from a larger starting number.
A 4.3% increase on $550,000 home creates more dollars of appreciation than the same percentage increase on $400,000 property. Percentages are annoyingly fair that way.
That higher future purchase price would mean:
A larger down payment
A larger monthly mortgage
More total interest paid over time
The numbers became even more dramatic when we looked at waiting 10 years.
This is why I don’t think buyers should look only at how much equity they may gain in their current home. They also need to consider what may happen to the price of the home they ultimately want.
Your equity may be growing. Unfortunately, the finish line may be moving too.
3. The Lifetime Debt Plan
This was the big “ah-ha” moment in our conversation.
She is currently in her early 30s. I introduced a concept I call the lifetime debt plan, which begins with a simple question:
“How late into your life do you want to remain in debt?”
Her current mortgage is scheduled to be paid off when she is in her early 60s. If she waits another five years before purchasing the larger home and begins a new 30-year mortgage, she could be carrying mortgage debt into her late 60s. If she waits 10 years, that could potentially extend into her early 70s. That can change a retirement strategy pretty quickly.
Most people don’t think about their next mortgage in relation to retirement. They tend to focus on the current payment, the down payment, and whether they can qualify. Those things matter, of course. But I also want to know what age you’ll be when the mortgage is scheduled to disappear. Nobody dreams of celebrating retirement by making payment number 287.
The Cost of Waiting Is More Than a Higher Home Price
Waiting can be the right decision in some cases.
A family may need time to:
Increase income
Improve credit
Build savings
Pay down other debt
Prepare for a larger monthly payment
Decide where they truly want to live
Those are all valid reasons. But “we should wait because waiting is automatically financially smarter” is not always true.
Waiting has a cost too. That cost may include:
A higher future purchase price
More total interest
A longer mortgage timeline
Lost years in the home that better fits the family
Carrying housing debt later into life
Sometimes waiting creates a stronger financial position. Sometimes it simply delays the same decision while making the future home more expensive. In my experience and most scenarios I have ran, waiting for a home purchase rarely creates a long-term benefit for the customer unless they truly cannot afford it today.
The New Timeline
By the end of our conversation, we landed on a new timeline of approximately two to three years. That gives them time to prepare personally and financially while still moving toward the larger, long-term home sooner than they had originally planned.
They don’t need to rush. But they also don’t need to automatically wait a decade because it sounds like the responsible thing to do. There is a big difference between making a patient decision and postponing a decision without running the numbers.
Why Regular Mortgage Reviews Matter
We wrapped up with her expressing gratitude for the regular check-ins, our ongoing relationship, and most importantly, a different perspective on managing debt and planning for her family’s financial future. That is exactly why I call my past clients every six months.
Life changes. People get married. Families grow. Careers change. Financial goals shift. The home that worked perfectly two years ago may no longer fit the life happening inside it.
A mortgage shouldn’t be something you discuss once at closing and then ignore for the next 30 years. Your mortgage is one part of a much larger financial life. It should be reviewed when that life changes.
Key Takeaway
Should you wait to buy a bigger home so you can build more equity? Sometimes. But the decision should include far more than the balance of your current mortgage.
You should also consider:
How quickly the next home may appreciate
How large the future mortgage could become
How much total interest you may pay
How the timing affects retirement
How long your current home will continue meeting your family’s needs
The right move isn’t always “buy now.” And it isn’t always “wait longer.” The right move is building a timeline that supports both your family’s life and your long-term financial goals.
Not all loans are the same, and not all loan officers are the same either. My approach is holistic and consultative. I’m not just here to quote rates and close loans. I help people make strategic decisions about their finances, debt, and housing needs well into the future.
I’m not retiring anytime soon, and my goal is to create clients for life. I want to be there for the first home, the larger home, the refinance, the investment property, and the conversation that begins with: “Our life looks different now. What should we do next?”
-Brian Kimball, Sr. Mortgage Advisor/Team Leader, The Lighthouse Group at Waterstone Mortgage