ROIStack helps you stress-test a US rental, flip, or BRRRR deal in minutes, with no spreadsheets and no formulas to memorize. This guide walks you from a fresh account to your first scored deal.
1. Pick your strategy
From the home screen, choose the analyzer that matches what you're underwriting. If you're not sure, use the table below as a quick filter.
- LTR: buy and hold with a tenant on a 12-month lease.
- STR: Airbnb or VRBO short-term rental.
- Flip: buy, renovate, and resell within 6 to 12 months.
- BRRRR: rehab, rent, then cash-out refinance.
2. Enter the basics
Every analyzer starts with purchase price, down payment, and interest rate. Defaults are sane US starting points (for example, 25% down on a 30-year fixed). Change them to match your actual quote.
3. Layer in expenses
Taxes, insurance, vacancy, maintenance, and management. Use county-typical numbers if you don't have a quote yet. Conservative beats optimistic.
4. Read the score
The score blends cash-on-cash return, cap rate, DSCR, and monthly cash flow against strategy-specific benchmarks. See How the deal score works for the breakdown.
5. Save, share, or move on
Save it to your account, share a read-only link with a partner, or export a branded PDF (Pro). When the numbers do not work, that is useful information too.