The One Number Your Move Up Spreadsheet Skips

Why does my move up spreadsheet always say to stay?

Your spreadsheet compares only two interest rates, and your rate is just one line in a much bigger equation. It leaves out your home equity, the capital gains exclusion on a primary residence, your other monthly debts, and your true total monthly cost. When you add those lines, the equity from your current home can shrink the loan you need on the bigger place and even clear out other debt. So the move that felt impossible may not double your real monthly spend at all.

If you bought a home in Austin or Houston a few years back and your rate starts with a 2, this is the exact math nobody ran with you. You priced out a bigger place last weekend, saw the new payment, and the room went quiet. So you did the sensible thing. You put your current payment in one column, the new payment in the other, and the spreadsheet said stay. Every single time.

What is your move up spreadsheet actually leaving out?

The problem is simple. A two column spreadsheet can only ever compare two rates. You built a calculator that can give you exactly one answer, and then you keep rerunning it every weekend hoping for a different result.

Your interest rate matters, but it is one input. The lines that change the whole picture never make it into that spreadsheet:

• The equity sitting in your current home
• The tax treatment of that equity when you sell
• Your other monthly debts like car loans and credit cards
• Your total monthly cost, not just the mortgage line

Until those show up, the answer will always be stay, whether it is right or not.

How does home equity change the move up math?

Start with equity. If you bought in 2020 or 2021 in the Austin or Houston metro, your home has very likely picked up real value since then. That is not a number stuck on a screen. When you sell, that gain comes to you.

Here is the part most people miss. On your primary home, a married couple filing jointly can exclude up to $500,000 of profit from capital gains tax, and a single filer up to $250,000. The IRS explains this exclusion in Topic 701. It means the equity that walks out of your current house can walk straight into the down payment on the next one.

A larger down payment shrinks the loan you actually need on the bigger place. A smaller loan means a smaller payment. That is one whole line your two column spreadsheet never had.

Why does total monthly cost matter more than the price of the house?

This is the piece almost nobody runs, so sit with it. It is not the price of the house that matters. It is your total monthly cost.

Your total monthly cost is not just your mortgage. It is your mortgage plus your car loans plus that credit card plus whatever else you feed every month. When you look at moving up, you have to look at all of it together. Lenders already think this way through your debt-to-income ratio, which weighs your full monthly obligations, not just the house.

Say the payment on the new house does go up a few hundred a month. On the spreadsheet, that is a loss, full stop. But if a chunk of your equity clears out a car payment or knocks down high interest debt in the process, your total out the door every month can land close to where it started. In some cases it lands lower. Same family, bigger house, and the monthly number did not detonate. That only shows up when you stop staring at the rate and start looking at the full monthly picture.

How do Texas property taxes and insurance fit into the decision?

Let me be honest about the Texas part, because it is on your mind. Property taxes and insurance here have climbed, and escrow can quietly eat a rate you thought you won. Your monthly payment includes principal, interest, taxes, and insurance, and the CFPB breaks down what goes into a mortgage payment. Texas has no state income tax, but property taxes tend to run higher than the national average, so escrow deserves a real seat in the math.

That is exactly why comparing two rates is not a strategy. You need your actual numbers. Your equity, your tax picture, your other debts, and what a bigger house actually solves for your family day to day.

What is the True Monthly Method?

That is the whole idea behind what I call the True Monthly Method. We do not start with a pitch. We start with the reason you actually called.

Before you fill out a single application, we go through your credit, your income, and your assets so you know exactly where you stand. Then I put your total monthly spend, house and current debts, right next to the equity sitting in your current home. When you see those two numbers side by side, stuck stops being a feeling and becomes an actual answer.

And here is something you might not expect from someone who does this for a living. Sometimes the honest answer is stay. Sometimes when we run the full picture, keeping your low rate really is the smart move, and I will tell you that straight. But you deserve to know that from real numbers, not from a doomed spreadsheet you rerun every weekend. Right now you are not choosing to stay. You are stuck because nobody ever showed you the whole equation.

Ready to run your keep versus move numbers?

If you own a home in Texas and you have been telling yourself you are not ready to move up, let's find out if your equity disagrees. Book a free 20-minute strategy call and I will run your keep versus move numbers with you. No application, no pressure, just your real picture.

You have run half the math for months. Let's run the other half together.