Mortgage Calculators
Estimate your monthly payment, compare loan types, calculate affordability, and plan your home purchase with confidence.
Monthly Payment Calculator
Estimate the full monthly cost of a home purchase: principal, interest, property taxes, homeowners insurance, HOA dues, and mortgage insurance. This is the PITI figure an underwriter uses.
20.0% down
Edit either field, the other follows.
Enter the rate you were quoted. We do not publish rates, so this is an illustration, not an offer.
Oregon runs roughly 1.0% to 1.2% of assessed value.
No PMI at 80% LTV or below.
Estimated monthly payment
$4,331
Principal, interest, taxes, and insurance
Conforming loan
Payment breakdown
Affordability Calculator
Work backward from your income. This finds the largest purchase price whose full monthly payment still fits inside a target debt-to-income ratio, counting the car loans, student loans, and credit card minimums you already carry.
Before taxes, all borrowers combined.
Car, student loan, and minimum card payments.
Enter the rate you were quoted. Illustration only.
43% is a common conventional ceiling. Some programs allow more.
Counted whenever the down payment leaves you above 80% loan to value.
Estimated maximum price
$638,062
Based on a 43% debt-to-income ceiling.
Conforming territory
What that payment looks like
Refinance Break-Even Calculator
A refinance costs money to close. This shows how many months of savings it takes to earn those costs back, and whether the new loan actually costs less over its full life once the term resets.
336 months is 28 years left on a 30-year loan.
Enter the rate you were quoted. Illustration only.
Monthly payment change
$322
Lower every month
Saves monthly and long term
Side by side
Principal and interest only. Your taxes and insurance escrow does not change when you refinance.
Early Payoff Calculator
See what paying a little extra each month does to your payoff date and your total interest. Every extra dollar goes straight to principal, so the effect compounds over the life of the loan.
Applied once, before the first payment.
7 yr 7 mo
Sooner to payoff
$149,581
Interest saved
$2,828
Your monthly P and I
Balance over time
Scheduled
With extra payments
What the numbers look like
Four real Portland-metro scenarios, calculated with the same math the tools above use. Every figure below assumes a 6.5% rate purely for illustration. Rates change daily and we do not publish them. For 2026, the conforming loan limit for a one-unit home in Clackamas, Multnomah, and Washington counties is $832,750, and Oregon property taxes generally run 1.0% to 1.2% of assessed value per year.
A $700,000 West Linn purchase with 20% down
A 30-year fixed loan of $560,000 at 6.5%, with Oregon property taxes at 1.1% of value and $1,800 a year in homeowners insurance. At exactly 80% loan to value there is no mortgage insurance.
| Loan amount | $560,000 |
|---|---|
| Principal and interest | $3,540 |
| Property taxes | $642 |
| Homeowners insurance | $150 |
| Mortgage insurance | None |
| Total monthly payment | $4,331 |
What $12,000 a month of income buys
Gross monthly income of $12,000, $800 of existing monthly debt, $100,000 saved for a down payment, and a 43% debt-to-income ceiling. That leaves $4,360 a month for the full housing payment. With $100,000 down the loan sits above 80% loan to value, so mortgage insurance is counted too.
| Monthly housing budget | $4,360 |
|---|---|
| Maximum purchase price | $638,062 |
| Loan amount | $538,062 |
| Principal and interest | $3,401 |
| Taxes, insurance, and mortgage insurance | $959 |
| Total debt ratio | 43.0% |
Refinancing $400,000 from 7.25% to 6.25%
A borrower 2 years into a 30-year loan, so 336 months remain. The new loan restarts at 30 years and costs $6,000 to close. Here the rate drop is large enough that total interest falls even with the longer term, which is not always the case.
| Current payment | $2,785 |
|---|---|
| New payment | $2,463 |
| Monthly savings | $322 |
| Break-even on $6,000 of costs | 19 months |
| Lifetime interest change | $43,002 less |
Adding $300 a month to a $400,000 loan
A 30-year fixed loan at 6.5% with a scheduled principal and interest payment of $2,528. Paying $2,828 instead, an extra $300 every month, changes the outcome substantially.
| Scheduled payoff | 30 years |
|---|---|
| Payoff with extra payments | 22 years 5 months |
| Interest on the scheduled path | $510,178 |
| Interest with extra payments | $360,597 |
| Interest saved | $149,581 |
Looking at an All-In-One first-lien HELOC instead? That has its own model, and we built a separate AIO payoff calculator for it.
About these calculators
Are the calculator results an actual loan offer?
No. The calculators provide educational estimates only. Actual loan terms depend on full underwriting, including credit, income, assets, and property review. Contact Renegade Home Mortgage to receive a real pre-approval and rate quote.
What property tax rate should I use for West Linn?
West Linn property taxes generally run 1.0% to 1.2% of assessed value annually, depending on the specific tax code area within Clackamas County. Always verify the current rate for the specific home you are evaluating.
What is the difference between a conforming loan and a jumbo loan in Portland?
For 2026, the conforming loan limit for a one-unit home in the Portland metro area, including Clackamas, Multnomah, and Washington counties, is $832,750. A loan at or below that amount is conforming. Above it, the loan is a jumbo and is underwritten to different guidelines, often requiring a larger down payment and more reserves. The payment calculator flags which side of the line your loan amount falls on.
Does a lower refinance rate always save money?
Not always. A lower rate reduces the monthly payment, but resetting the term back to 30 years can increase the total interest paid over the life of the loan even as the payment drops. The refinance calculator shows both figures, the monthly savings and the lifetime interest difference, along with how many months it takes for the monthly savings to cover the closing costs.
Why is there no rate filled in for me?
We do not publish rates on this site. Mortgage pricing moves daily and depends on your credit, loan size, property type, occupancy, and lock period, so a rate shown to everyone would be wrong for almost everyone. The calculators start from an illustrative figure you can change. For a real number, ask for a quote.
Ready to Get Started?
Once you've run the numbers, let's make it real. Apply online in minutes or schedule a free consultation.