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Live build · Real estate tooling

A deal calculator that picks a side.

The Ledger is a tailored real estate investment calculator — rentals, flips, BRRRR, wholesale, mortgages, and rent-vs-sell, all in one tool. Every number recalculates live, and every deal ends with an honest verdict stamped across it.

6
Deal types in one tool
Live
Every field recalculates instantly
Cap rate
Cash flow, CoC return, 1% rule
Verdict
Worth a look / Walk away, stamped
The problem

Spreadsheets don't tell you to walk away.

Most investors evaluate deals in scattered spreadsheets — one for rentals, another for flips, a third someone half-built for BRRRR. Formulas break, assumptions get buried in cells nobody remembers editing, and there's no single moment where the deal actually says whether it's worth pursuing.

A good deal and a bad one can look nearly identical in a spreadsheet if you're not the one who built it — the numbers are there, but the verdict isn't.

What we built

Six deal types, one ledger.

Not a generic calculator with extra tabs bolted on — each mode is built around how that specific deal type actually gets evaluated.

Rental & Mortgage

Purchase price, closing costs, financing terms, and every recurring cost — taxes, insurance, HOA, maintenance, vacancy, management fee — rolled into a monthly cash flow figure that updates as you type.

BRRRR & Flip

Rehab cost, holding period, after-repair value, and refinance terms feed straight into cash-left-in-deal and post-refinance cash flow — the two numbers that actually decide if a BRRRR works.

Wholesale & Rent-vs-Sell

The two decisions that don't fit a standard rental model get their own dedicated logic, instead of being forced through the same formula as everything else.

The tally

Every deal ends with a stamp.

Cap rate, cash-on-cash return, and the 1% rule check all calculate live from the line items above them. Once the tally lands, the deal gets marked — plainly, in red or gold ink, no hedging.

WORTH A LOOK

Positive cash flow, a cap rate that clears the bar, and a cash-on-cash return that justifies the capital tied up — the deal earns a green light.

WALK AWAY

Negative monthly cash flow and a cash-on-cash return underwater — the same tool, the same honesty, in the other direction.

The result

A calculator with an opinion.

Saved deals persist across sessions, every mode shares the same clean line-item structure, and the verdict at the bottom means nobody has to reverse-engineer whether a deal is actually good.