Underwriterentalswith clarity.
A calm analyst's workbench for rental real estate. Search any address, edit assumptions, and watch the math respond instantly — from purchase price to a 10-year pro forma.
We refuse to ship spreadsheets that quietly lie about your returns.
Every number on a CashOnCash report can be traced, edited, and trusted. It is the underwriting tool we wished we had.
A calmer way to underwrite rentals — with every assumption in plain sight.
One report. Every number you can defend.
CashOnCash gives each property its own report — a single page you can read in 30 seconds and edit in 30 more. No tabs, no VLOOKUPs, no cells named Sheet2!B17.
- Editable purchase price, rent, taxes, and operating expenses
- Lender-ready DSCR, cap rate, and amortization built in
- Share a link — partners see the same live model you do
Search any address
Drop in a street, MLS link, or Zillow URL. We hydrate beds, baths, taxes, and listing rent in seconds.
Live underwriting math
Every cell is editable. Cash on cash, NOI, DSCR, and IRR recompute the moment you change an assumption.
Side-by-side comps
Stack your subject against three nearby rentals; spot the outlier before you make the offer.
Built for analysts who measure twice and cut once.
Real-time math
Every assumption recalculates the entire model live. No recalc spinners, no broken cells.
Auditable assumptions
Each KPI traces back to an editable input. Defend your number in any credit memo.
Lender-ready exports
Share a live link or export a polished PDF. DSCR, NOI, and cap rate, ready for review.
From street name to signed offer — in three quiet steps.
- 01
Search
Paste an address, MLS link, or Zillow URL. We pull beds, baths, taxes, and a fresh listing rent in seconds.
- 02
Underwrite
Edit any assumption — price, rent, vacancy, taxes — and the full P&L, debt service, and 10-year pro forma recompute live.
- 03
Share
Send a link to your partner, lender, or LP. They open the same live model you do — no PDF rounds, no broken cells.
- Zillow
- Redfin
- RentCast
- County records
- FRED
- Treasury rates
- OpenStreetMap
See the next decade before you sign.
Stress-test rent growth, exit cap, and operating expenses with preset scenarios — or drag the assumptions yourself. The 10-year cash flow, equity build, and IRR update without a single recalc spinner.
- Scenarios
- Base · Optimistic · Stress · Custom
- Outputs
- CoC, NOI, DSCR, IRR, equity multiple, payback
- Exports
- Shareable link, PDF, Excel
Trust the inputs. Defend the outputs.
Public records
County assessor parcel data, tax rolls, and zoning attached to every report.
Listing comps
Three nearby active rentals scored against your subject, refreshed on demand.
Treasury & FRED rates
Mortgage rates, 10-yr UST, and CPI flowing into your scenario presets automatically.
What analysts are saying
- Mara K.Acquisitions, Holland Capital
“I used to keep a 'live' spreadsheet open with twenty tabs. CashOnCash replaced all of it with a single report I can defend in a credit memo.”
- Jordan T.Independent operator
“The scenario sliders let me show an LP the downside in under a minute. The conversation changed completely.”
- Priya S.Asset manager, Bridgework
“It's the first underwriting tool I've trusted to share with sellers. Everything ties out.”
- Devin R.Credit, regional bank
“Borrowers send me a link, I open the model, and the DSCR matches my spread sheet. We've cut underwriting time in half.”
We come from operating, not from finance.
For years we underwrote our own deals on the back of someone else's spreadsheet. It worked — until a tab broke, a formula silently drifted, or we shared the wrong version with a lender.
CashOnCash is the tool we wished we had: a single live report you can defend, edit, and share without flinching. Every number traces back to an editable input you control.
We treat underwriting like a craft. Quiet, careful, honest. If that's how you work too — we built this for you.
CashOnCash at a glance
- Real-time math
- Editable model
- 10-yr pro forma
- Side-by-side comps
- Scenario sliders
- Shareable reports
Underwrite your next deal in minutes.
Free to try. No credit card. Workspaces for teams.