Fast, confident short-term rental underwriting
Our underwriting tools help you move faster, with full clarity to forecast revenue, benchmark returns, and underwrite short-term rental deals with precision.
A data-powered way to evaluate STR deals
SummerOS is a powerful, flexible STR underwriting engine designed for operators, investors, and owners. Input your price, furnishing budget, operating costs, and capital expenses—then layer in accurate revenue projections based on real Airbnb market data and comps. You’ll get a complete financial snapshot for your next investment in seconds.
Underwrite short-term rental deals in minutes using real data, not outdated market reports
Connect to performance tracking for a full view from acquisition to optimization
Add price, loan terms, CapEx, furnishings, and more to model complete deal economics
Got questions?
We’ve got answers.
What is short-term rental underwriting, and why does it matter?
Underwriting is the process of analyzing whether a property will be a good investment. For short-term rentals, this means projecting revenue, estimating costs, and understanding your expected returns on a vacation rental before making a purchase.
With SummerOS, you can build a full Airbnb pro forma in minutes using real market data—so you can make confident decisions without relying on guesswork or outdated averages.
Who should use SummerOS underwriting tools?
How do these projections connect to real performance later?
This is where SummerOS shines.
After a property is live, you can track its actual performance using our real-time analytics tools. Your original projections are saved, so you can see how real revenue, occupancy, and profitability compare. This helps you refine your assumptions, guide pricing adjustments, and improve your future underwriting.
What financial inputs can I plug into SummerOS?
What does SummerOS do?
SummerOS is the asset intelligence platform built for short-term rental professionals who are serious about performance. It delivers revenue projections, real-time performance tracking, and owner-ready reporting—so you can operate strategically, drive results, and scale with confidence.
For STR property managers and operators looking to grow intelligently, SummerOS is the only platform that combines best-in-class forecasting, competitive benchmarking, and portfolio-wide visibility that’s purpose-built for the unique demands of the short-term rental industry.
Your PMS handles operations. Tools like AirDNA show you overly broad market reports. SummerOS powers your future. It’s how you win more deals, retain more owners, and hit your revenue goals—all with one data-driven platform built to elevate your business.
Do I need a financial background to use SummerOS?
Not at all. SummerOS is built to be intuitive and approachable—even if you’ve never built a financial model before.
The platform guides you through each step with a clean interface and helpful defaults, so you can generate professional-quality results without a finance background or spreadsheet wizardry. (Promise.)
How does SummerOS improve short-term rental underwriting compared to traditional tools?
Traditional underwriting tools—like spreadsheets or broad real estate calculators—are slow, manual, and not designed for the unique dynamics of short-term rentals.
They rely on outdated formulas or generic market assumptions that don’t reflect what’s actually happening in your target area. SummerOS replaces all of that with a streamlined, purpose-built platform for STR professionals. It combines real-time local data with customizable competitive sets that allow you to benchmark your property against real, high-performing listings nearby. You can filter comp sets by bedroom count, property type, amenities, and more—ensuring your revenue projections are based on apples-to-apples comparisons.
From there, SummerOS automatically calculates key financial metrics like ROI, IRR, and cash flow—giving you accurate, data-backed insights in minutes, not hours. It’s the smarter, faster way to underwrite STR deals with clarity and confidence.
Is this useful for owner onboarding or growth conversations?
Yes, and it’s one of the most popular use cases. You can use SummerOS to build a compelling, data-backed case for why an owner should work with you—or what their property could earn as an STR. The combination of clear projections, real comps, and polished term sheets helps you win trust and close deals faster.
How does SummerOS compare to other short-term rental software?
SummerOS isn’t just another tool in your tech stack—it’s the platform that ties your entire revenue strategy together.
- Data platforms like AirDNA offer broad market trends—but those numbers aren’t tied to your actual properties or strategy. SummerOS shows your actual opportunity and forecasts what each asset can earn and helping you act on it.
- PMS platforms are built for operations: calendar syncing, cleaning tasks, team coordination. SummerOS is built for performance. It tracks real-time revenue, identifies dips, and shows you how to maximize revenue.
- Pricing tools adjust rates, but they don’t explain why a property is underperforming. SummerOS gives you the full picture, with portfolio-wide performance tracking and smart alerts that help you hit revenue goals, not just adjust numbers.
- Reporting tools show retroactive stats. But SummerOS helps you outperform in the future, with actionable insights that build owner trust and drive retention.
Bottom line: SummerOS is the only asset intelligence platform built specifically for short-term rental managers who want to grow smarter, move faster, and deliver better returns. It’s not about tracking what happened—it’s about powering what’s next.
How much does SummerOS cost?
If you’re still in the research phase and haven’t bought an STR yet, you can get 30 days of SummerOS access for just $50 with our Lite plan. It’s a great way to explore markets, run projections, and get clarity on potential returns before you make a purchase.
Once you’re managing properties, plans start at $19/month and scale with you as your portfolio grows. Pro plans with greater features are $25 per property, and if you’re overseeing 25+ properties, we’ll set you up with custom pricing that comes with added support, onboarding, and more.
No matter where you are in your journey, you can start with free limited access to get a feel for the SummerOS platform. And as soon as you sign up, you’ll unlock a 3-day free trial with full access, so you can experience everything SummerOS has to offer.