I hear this worry all the time: "But won't my payment just keep going up every year, like rent does?" Someone I know bought land and told me exactly that — every year, his payment crept up, and nobody had explained why. So let's break it down, because once you see it, it stops being scary.
The Four Parts of PITI
Your monthly mortgage payment is actually four pieces bundled into one number: Principal, Interest, Taxes, and Insurance.
- Principal + Interest — this is your actual loan payment to the bank. This number is locked in for the life of your loan. Whether it's year 1 or year 29, it does not change.
- Taxes — property taxes, which can and do increase, usually because your home's assessed value goes up.
- Insurance — homeowner's insurance, which can also increase, but you control this one by shopping around every year for a better rate.
A Simple Example
Let's use easy round numbers to show how this works:
| Piece | Year 1 |
|---|---|
| Principal & Interest | $400 |
| Insurance | $150 |
| Taxes | $150 |
| Total Payment | $700 |
Now let's say insurance goes up $20 and taxes go up $40 the next year (maybe your city or school district passed a new bond, or your home's value went up):
| Piece | Year 2 |
|---|---|
| Principal & Interest | $400 (unchanged) |
| Insurance | $170 |
| Taxes | $190 |
| Total Payment | $760 |
Your payment went up $60 — but notice: the part you're actually borrowing never moved. That's the piece renters never get, because 100% of their payment can change, every single year, at their landlord's discretion.
You're Not Powerless Here
A lot of people just accept the increase without ever asking why. Here's what you can actually do:
On insurance: Call around every year. Rates change, and loyalty rarely gets rewarded. Moving companies for a better rate is completely normal and can offset a chunk of the increase.
On taxes: You can protest your home's assessed value. What you're really disputing isn't the tax rate — it's the value the county says your home is worth, which is often based on nearby sales, not anything you did to your own home. I've told this to clients over and over: if you never ask, you'll just keep getting whatever increase they hand you.
The Homestead Exemption — Don't Skip This
If you live in the home you own, file for a homestead exemption. Here's why it matters: the county doesn't tax your full home value — it taxes the value above a certain exemption amount (in recent examples, around $140,000).
- A $150,000 home → you're only taxed on about $10,000 of value
- A $200,000 home → you're only taxed on about $60,000 of value
That's a real, ongoing savings, every single year you own the home — and it only applies if you actually live there and file for it. It's one of those easy wins nobody tells you about until someone tells you about it.
Why This Actually Adds Up to Real Savings
Because your principal and interest never change, your housing cost becomes more predictable — and often cheaper — the longer you stay, especially compared to rent, which tends to march upward every single year without exception. Thirty years of a locked-in payment is thirty years of savings rent can never give you.
Your Next Step
Understanding your payment is half the picture. The other half is getting the money together to make that first payment happen — the down payment.
Coming up: How to Save for Down Payment — including a few mistakes that can quietly hurt your approval right before closing.
Read: How to Save for Down Payment →Educational content only — not financial, legal, or tax advice. Every homebuyer's situation is different; talk with a licensed loan officer, tax professional, or attorney about your specific numbers before making a decision.