Compare buying today with renting for a while and buying later at a price and rate you choose. Both paths spend the same each month; the cheaper one invests the difference.
Buying today
Advanced assumptions
If you wait: three scenarios you choose
| Scenario | Buy now | Wait | Waiting comes out | Rate waiting needs |
|---|---|---|---|---|
| Rates fall, prices rise | $231,827 | $241,595 | $9,768 ahead | Below 6.28% |
| Nothing changes | $212,412 | $223,067 | $10,654 ahead | Below 7.07% |
| Rates and prices rise | $257,097 | $223,284 | $33,813 behind | Below 6.28% |
| Scenario | Price paid | P&I payment | Cash to buy | Extra cash needed | Rent while waiting |
|---|---|---|---|---|---|
| Buy now | $400,000 | $2,075.51 | $92,000 | — | — |
| Rates fall, prices rise | $416,000 | $1,995.30 | $95,680 | $0 | $27,600 |
| Nothing changes | $400,000 | $2,075.51 | $92,000 | $0 | $27,600 |
| Rates and prices rise | $416,000 | $2,270.28 | $95,680 | $0 | $27,600 |
Nobody can predict prices or rates. The “rate waiting needs” column turns that uncertainty into one question: would the rate really have to fall that far, with that price change, for waiting to pay? Buying now does not stop you refinancing later if rates fall, though refinancing has costs and is not guaranteed.
How it works
Path one buys today. Path two pays rent for the wait with the down payment and closing costs invested, then buys the same home at the price change and rate in the scenario. Each month both paths spend the same: the one with the lower housing cost invests the difference. Both homes follow one value path, so after the horizon net worth is the home’s value after selling costs, minus the loan balance, plus savings. The break-even rate is found by searching for the rate at which the two paths come out equal.
See buy now, refinance later, check what a rate change does to your budget with the buying power calculator, and compare buying with renting for good in the buy vs rent calculator.
Sources and further reading
- Loan Estimate Explainer (CFPB)
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Have a specific home in mind? Analyze a specific property with Reaixo to see its value, monthly cost and risks alongside your financing.
Frequently asked questions
Should I wait for mortgage rates to drop before buying?
Nobody can reliably predict rates or prices. A lower rate later can be offset by a higher price, more rent paid and less time building equity. The calculator shows how far the rate would need to fall, under each price assumption, for waiting to come out ahead.
Why does the calculator include savings?
While you wait, the down payment can stay invested, and whichever path has the lower monthly cost can invest the difference. Counting it on both sides keeps the comparison fair.
Can I buy now and refinance later?
Often, if rates fall and you qualify, but refinancing has costs and is not guaranteed. Read the buy-now-refinance-later guide and check the refinance break-even before relying on it.
Are the scenarios predictions?
No. They are starting points for you to edit. Try a price drop, a rate rise and a longer wait to see which assumptions change the answer.
Mortgage Tools
Mortgage Payment & Affordability
Estimate your total monthly housing payment, or how much home you can afford based on income, debts and down payment.
Calculate Now →Compare Loan Offers
Compare rate, APR, term, points, and fees across up to three loan offers side by side.
Compare Offers →Lock or Float?
See how a rate change would affect your payment and work through the lock-vs-float decision.
Explore Scenarios →Should You Refinance?
See your true economic break-even — not just a lower payment from resetting your loan term.
Check Break-Even →Down Payment & PMI Calculator
Compare 5%, 10%, 15% and 20% down side by side — loan amount, PMI, monthly cost, cash to close and PMI timeline.
Compare Down Payments →Mortgage APR Calculator
Calculate the real APR of up to two offers, with points, fees, mortgage insurance and credits, plus a break-even month.
Calculate APR →Mortgage Points Break-Even
See the month discount points pay for themselves.
Find Break-Even →Temporary vs Permanent Buydown
Compare a 2-1 buydown with a permanent rate cut bought with the same dollars.
Compare Buydowns →ARM vs Fixed-Rate Calculator
Stress-test an adjustable-rate mortgage against a fixed rate using real rate caps.
Compare ARM and Fixed →New Construction True Cost Calculator
See what a new construction home actually costs after lot premium, options, upgrades, incentives and closing costs — not just the base price.
Calculate True Cost →Property Tax & Escrow Calculator
Model property tax and insurance changes, escrow shortages, and your current, temporary and stabilized mortgage payment.
Run My Scenario →Compare Renting vs Buying
See the financial outcome of buying vs. renting over any time horizon.
Compare Renting & Buying →HELOC vs Cash-Out Refinance
Keep your rate and add a HELOC, or refinance it all: compare interest and fees.
Compare Equity Options →PMI Removal Timeline
The month your PMI can end, and what extra payments or an appraisal change.
Find My PMI Date →Understand the numbers
Buy now, refinance later · Mortgage Rates & Rate Locks Guide
Financing a specific home?
The loan is only half the decision. Check the property's value, true monthly cost and risks with Reaixo before you commit.
Analyze a property with Reaixo →Educational Use Only: Reaixo is not a lender, mortgage broker, financial advisor, or loan originator. Calculations are estimates for informational and educational purposes only and may not include every cost associated with a mortgage. Rates, APRs, fees, taxes, insurance, mortgage insurance, eligibility, and loan terms vary by borrower, property, lender, loan program, and market conditions. Verify all figures and loan terms with a qualified lender and review your official Loan Estimate before making a financial decision.