Let me start with the part nobody likes to hear. If you're a first-time buyer in Portland right now, your monthly mortgage payment is almost certainly going to be higher than your rent. With the average 30-year fixed rate sitting at 7.40% this week (the highest we've seen since late 2023), there's no way around it, and I'm not going to pretend otherwise.
So why would anyone buy right now? Because the monthly payment is only one piece of the picture, and if you plan on staying put for a while (I'm going to use 7 years for this example), the math tells a very different story than the monthly payment does.
The setup
Here's the scenario I'm going to walk through:
- Purchase price: $400,000
- Down payment: 3% ($12,000), which is possible with several conventional first-time buyer programs
- Loan amount: $388,000
- Rate: 7.40% (this week's Freddie Mac average, used for illustration only)
That puts principal and interest at about $2,686 a month. Add in roughly $367 for property taxes, $100 for homeowners insurance, and around $145 for mortgage insurance (PMI, which is required when you put less than 20% down), and you're looking at roughly $3,300 a month all in.
Compare that to renting. The average rent on a 3-bedroom house in Portland is running about $2,800 to $2,950 a month, so let's call it $2,800 for our renter. That means our buyer is paying about $500 more a month than our renter in year one.
That being said, let's look at what each of them actually has to show for it after 7 years.
Round 1: The home vs. the stock market
Our renter didn't spend that $12,000 on a down payment, so let's assume they did the smart thing and put it in an S&P 500 index fund. The S&P 500 has averaged about 10.4% a year since 1957 (with dividends reinvested), which is a great return, and I'm not knocking it.
After 7 years, that $12,000 grows to about $24,000. So the renter made roughly $12,000 on their money.
Now our buyer. Portland home values have appreciated about 4.6% a year on average since 2000, according to FHFA data. That's a lower annual return than the stock market, and if you stopped reading here you'd think the stock market wins. But here's the thing... you aren't earning that 4.6% on your $12,000. You're earning it on the entire $400,000 house.
At 4.6% a year, that $400,000 home is worth about $547,000 after 7 years. That's roughly $147,000 in appreciation on a $12,000 down payment!
What gives? This is leverage, and it's the single biggest reason homeownership builds wealth the way it does. The bank owns most of the house, but you keep all of the appreciation.
(And for what it's worth, Portland's 10-year average has been closer to 6%, which would push that home value north of $600,000. I'm using the more conservative number on purpose.)
Round 2: Add back the equity from paying down the loan
Every mortgage payment you make has two parts, interest (what the bank charges you to borrow the money) and principal (the part that actually pays down your loan). That principal portion is basically a forced savings account.
Over 7 years on this loan, our buyer pays down about $32,000 in principal. That's money that went straight into their own pocket, not a landlord's.
Round 3: Add back the tax savings
So, this is the part people forget about. Mortgage interest is deductible if you itemize, and in the early years of a loan, most of your payment is interest. In year one alone, our buyer pays about $28,600 in interest.
Here's how that shakes out for a married couple making around $120,000 a year (22% federal bracket):
- Federal: Their mortgage interest plus property taxes and state income taxes push them past the $32,200 standard deduction, which saves them roughly $2,000 a year, or about $13,500 over 7 years.
- Oregon: This is the bonus a lot of people miss. Oregon's standard deduction is tiny ($5,820 for married couples in 2026), so almost all of that mortgage interest and property tax is deductible at the state level. At Oregon's 8.75% rate, that's roughly another $2,300 a year, or about $16,000 over 7 years.
If you're a single buyer, the federal savings are even bigger because your standard deduction is half the size ($16,100), so more of your interest counts.
(Quick note: starting in 2026, PMI is deductible again too, for households under about $100,000 of income. It phases out completely at $109,000.)
The scorecard after 7 years
Now let me be fair to the renter, because I'd rather you understand this than trust me. A really disciplined renter would also invest that extra $500 a month they're not spending on a mortgage. If they did that every single month for 7 years, on top of the original $12,000, they'd end up with around $58,000. That's a solid number.
And the buyer has to sell to cash out their equity, which costs real money (agent commissions, title, escrow), usually somewhere around 6% to 8%. Even after taking 7% off the top for selling costs, our buyer walks away with roughly $153,000 in equity, before you even count the tax savings.
Bottom line, the renter has a nice brokerage account. The buyer has a house, more than 2.5x the net worth, and a payment that won't go up with the rent every year (your principal and interest is locked for 30 years, while that $2,800 rent will likely be closer to $3,350 by year 7 at a normal 3% annual increase).
A few honest caveats
- These numbers assume Portland keeps appreciating close to its long-term average. Past performance doesn't guarantee anything, and home values can go down in the short term.
- The 7-year horizon matters. If you think you'll move in 2 or 3 years, renting may well be the better call because selling costs will eat most of your gains.
- Taxes are personal. Your actual savings depend on your income, filing status, and everything else on your return, so please run this by your CPA or tax preparer.
If you want me to run these numbers using your actual rent, income, and target price, I'm happy to do it. It takes about 15 minutes and it's the best way to see whether buying makes sense for you right now.
Example is for illustration only and is not a loan quote or tax advice. Payment estimates assume a 30-year fixed conventional loan at 7.40%, an estimated property tax rate of 1.1%, $100/month insurance, and estimated PMI; your rate, APR, and costs will vary based on credit, property, and program. Consult a tax professional about your situation.
Want this run on your actual numbers?
Everything above is a worked example. Give me your real figures and I'll tell you what it looks like for you, with no application and no credit pull.