Mortgage & Wealth Calculators
Simple, powerful resources to help you plan, compare, and move forward with confidence.
You don’t have to guess. You don’t have to wing it.
Use our tools, and make your next move your smartest yet.
Charitable Remainder Trust (CRT) Cash Flow Estimator
Estimates income and tax benefits from a CRT-based donation plan.
Estate Distribution & Legacy Wealth Allocator
Plans how your estate and assets will be distributed by intent.
Home Affordability Calculator (Monthly Budget-Based)
Shows how much house you can afford based on your budget.
Max Purchase Price Calculator (Income + DTI-Based)
Calculates your max home price using income and DTI ratio.
Build ADU to Enjoy – Cost Calculator
Estimates total cost to build and enjoy an ADU on your property.
Debt Consolidation Loan Payment Calculator
Shows your new payment if debts are merged into one loan.
Early Payoff vs. Investment ROI Tool
Compares benefits of early mortgage payoff vs. investing funds.
Real Estate Investor Readiness Quiz
Evaluates your readiness to begin investing in real estate today.
Short-Term vs. Long-Term Rental ROI Comparison
Compares ROI from short-term and long-term rental strategies.
Build ADU to Rent – Net Income Calculator
Estimates long-term rental income from building and renting an ADU.
Build ADU to Sell – Cost/Profit ROI Calculator
Projects ROI from building and selling an accessory dwelling unit.
Real Estate Entity Structure Tax Comparison
Compares tax outcomes for different real estate entity types.
Short-Term Rental ROI Calculator (Airbnb)
Estimates profit from operating short-term vacation rental units.
Build ADU to Enjoy – Cost Calculator
Estimates total cost to build and enjoy an ADU on your property.
Debt Consolidation Loan Payment Calculator
Shows your new payment if debts are merged into one loan.
Early Payoff vs. Investment ROI Tool
Compares benefits of early mortgage payoff vs. investing funds.
Build ADU to Enjoy – Cost Calculator
Estimates total cost to build and enjoy an ADU on your property.
Debt Consolidation Loan Payment Calculator
Shows your new payment if debts are merged into one loan.
Early Payoff vs. Investment ROI Tool
Compares benefits of early mortgage payoff vs. investing funds.
Think Clearly. Act Confidently.
At Stairway Mortgage, we believe clarity creates confidence.
Whether you’re a first-time buyer or seasoned investor, our growing library of calculators, templates, and decision-making tools is designed to help you think strategically, act wisely, and feel prepared.
These aren’t gimmicks. They’re real tools we use with our clients every day.
Speed, Strategy, Clarity – All Working for You
- Are you comparing renting vs. owning?
- Do you know how to calculate ROI on a potential investment property?
- Wondering how much house you can actually afford—or if you should refinance?
- Planning to scale your portfolio and want a wealth roadmap?
100% Client Satisfaction
Real Comments, Real People
Hear From Some Past Clients of Our Founder
Alexis Kulick - via Faceook
Easy and quick refinance with great rates and expert advice.
I recently refinanced my existing mortgage with Jim and his team, and I was so pleased with how easy and quick the whole process was. Jim and his team were very responsive to my questions, and I feel confident that I got the best rate and shaved 9 years off my mortgage. He is very knowledgeable and helped me determine the best option for myself and my family. Definitely recommend him.
Julian Einfrank - via Facebook
Complex loan scenario handled with expertise and care.
The process went smoothly. Jim Blackburn is a lending saint. He knows the market well and cares about his clients tremendously. The team made it really easy to do business, uploading documents and getting forms signed. Our situation is a bit complex. Rather than turn us away for some added work, they dug in to get it done right. They like the complexity, whereas other lenders don’t want to roll up their sleeves. Highly recommend Jim Blackburn for new loans and refinances!
Elizabeth Torres - via Facebook
Closed in time for Thanksgiving! Jim and his team were amazing, and we got a much better deal than previous lender.
We closed our loan within 19 days. Just in time for Thanksgiving!! Jim and his team are amazing! We initially had gone with a different loan office and the interest rate and down payment was ridiculous. The owner of the company where my husband works referred us to Jim and we are very grateful for that. We had such an amazing experience with Jim and his team! Since our transaction, we’ve been referring Jim to anyone we know that are thinking of purchasing a house.
David Livermore - via Google
Secured financing despite market challenges and self-employment.
Run, don't walk to work with Jim and his team. Jim helped us get financing when it seemed like an impossible feat. It was hard enough to be managing a home purchase 2000 miles away, but add to that an extremely competitive market and being self-employed, and it seemed impossible until Jim's team got involved. Jim was not only responsive; he consistently went above and beyond by making clear recommendations, working his magic, and ensuring that financing wasn’t a barrier for buying our dream house in one of the most competitive markets in the country.
Christina Curva Carrasco - via Facebook
Smooth, fast, and hassle-free mortgage and refinance process.
Jim and his team are great to work with! We have used Jim twice with our home mortgage. Both times, the process was smooth and uneventful (which is what I wanted). He has kept in touch with us and contacted us when he felt it was the right time for us to refinance! I was amazed at our refinancing process – it took them about a little over two weeks to process all our information and close! I love the new online process of submitting all the information they require – it made it super easy for me to organize and gather all the documents.
The Numbers Matter — But So Do Your Goals
This quiz helps you pair what’s possible with what’s truly meaningful.
Use this short quiz to clarify your long-term financial goals — and let us guide you with more than just math. Together, we’ll align your numbers with your bigger picture and ensure every calculation leads somewhere worthwhile.