The Move-Up Math. Your First House Is Your Down Payment.

You've been in the house five years. It's tight. Somebody's working from a closet, the second kid shares a room with the treadmill, and every time you scroll listings you do the same thing: look at the price, wince, close the app.

Here's what that wince is missing. You're not the same buyer you were five years ago. Last time, you had to scrape a down payment together out of savings. This time, you've been building one every month without thinking about it — it's just been wearing a costume. It looks like your house.

Let's run it.

Say you bought at $350,000 five years back. Houses like yours now move around $450,000, and your loan balance is down to about $290,000. The gap between what it's worth and what you owe — $160,000 — that's yours. That's equity, and equity is a down payment that's been quietly doing push-ups since the day you closed.

Now, you don't walk away with all $160,000, and I'm not going to pretend you do. Selling costs money — agent compensation, closing costs, the little pile of fixes the inspection shakes loose. Call it roughly 7%, about $31,500 on a $450,000 sale. You clear somewhere near $128,500.

Hold that number, because here's what it does. The $550,000 house you keep wincing at? Twenty percent down is $110,000. Your walk-away covers it — with about $18,500 left over for moving trucks and the couch that actually fits the new living room. Twenty percent down means no mortgage insurance on most conventional loans, which is a monthly bill you simply never meet.

That's the move-up math, and almost nobody runs it before they wince. The list price isn't the question. The question is the gap between your equity and the next down payment — and for a lot of people five-plus years into a house, the gap is already closed.

Couple of things to keep you sharp:

Your equity number is a live number. You don't guess it — you get your home's likely sale range from someone who watches your market, and your exact loan balance off your statement. Ten minutes, two numbers, no mystery.

The payment still has to fit. A bigger loan means a bigger payment, and the payment has to sit right next to your income and your other monthly obligations — that ratio is the one every lender reads first. Run it before you fall in love with a kitchen. (My colleague Simone has the buydown math if you want to go deeper on rate options, and Vera can tell you exactly how an underwriter reads your income — those two don't miss.)

You don't have to sell first and camp in a rental. There are ways to sequence it — sale contingencies, bridge options, timing the two closings — and the right one depends on your market and your nerves. That's a sit-down conversation, not a blog paragraph.

You built this position one payment at a time for five years. You did the hard part already — you just did it slowly enough that it never felt like progress.

You don't need a pep talk. You need a number. Go find your balance, get your home's range, and subtract. I'm not going to talk you into anything — the math is better at this than I am.

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Education, not pressure. Illustrative figures; your home's value, sale costs, loan options, and payment depend on your market and your file. When you're ready to run your actual numbers, that's what we're here for.