Capital Stack Buy BRRRR calculator DSCR underwriting spreadsheet business license 3 seats

Capital$tack | Buy: BRRRR Calculator + DSCR Underwriting Spreadsheet (Business License)

$349 (up to 3 seats)

Capital$tack | Buy (Business License) is a lender-aligned BRRRR calculator + DSCR underwriting spreadsheet (Google Sheets) built for conservative deal decisions that hold up under real lender numbers.

If you’re tired of “guru math”… this is bank math.

Created for BRRRR & DSCR investors who want lender math before they make an offer.

It’s a deal-underwriting app wearing Google Sheets clothing.

✅ Click here to make your Business copy How it works ↓
We do lender math, not magic. Want the weekly cheat codes?

Free Deal Math Drops
1–2 emails/week. Underwriting tips, negotiation levers, lender rules. No spam.

Small-Team License (3 Seats)

Built for teams analyzing multiple deals together without breaking license rules.

BRRRR + DSCR Lender Math

Rent, PITIA, NOI, DSCR, and bank-style underwriting outputs that hold up under lenders.

Max Offer + Deal Filter Mode

Screen fast, skip dead deals early, and go deeper only when the numbers deserve it.

How delivery works: Click the button → checkout on Gumroad → instantly create your private Google Sheets copy.
Disclaimer: We do lender math, not magic. This tool doesn’t guarantee approvals or profits. It helps you underwrite conservatively based on the numbers you enter.

What this tool underwrites (like a lender)

✅ Works as a BRRRR calculator, Max Offer calculator, DSCR calculator, and cashflow underwriting sheet in one.

This tool helps you quickly answer the only question that matters: Does this deal breathe… or does it die the moment a lender sees it?

  • Rent (Market + Underwritten Rent)
  • PITIA + cashflow modeling (post-refi)
  • NOI + DSCR outputs (lender-aligned)
  • Max Offer logic (negotiation-ready)
  • Suggested Opening Offer guidance
  • Primary Concern + verdict-style decision outputs
  • Includes Deal Filter Mode to screen deals fast and skip dead deals early
Best for
  • BRRRR investors (Buy, Rehab, Rent, Refi)
  • DSCR loan buyers
  • Conservative underwriting
  • Negotiation math + lender reality checks
  • Small teams analyzing multiple deals together
How delivery works
No waiting, no “request access”, no confusion. Checkout creates your private copy instantly.
1

Click the button above

Start checkout from this page to get instant access.

2

Checkout on Gumroad

Fast payment + automatic delivery handled for you.

3

Make your private copy

Your link creates your Google Sheets copy immediately.

FAQ
How many users are included?

Business License = up to 3 users (3 seats). You may share this file with up to 3 people inside your business/team.

Is this the same tool as Personal?

Yes. Same lender-aligned underwriting tool. The difference is the Business License allows up to 3 users.

Can I share it publicly or resell it?

No. ❌ Not for public sharing, resale, redistribution, or client-wide distribution.

Does this guarantee approvals or profits?

No. We do lender math, not magic. This tool doesn’t guarantee approvals or profits. It helps you underwrite conservatively based on the numbers you enter.

License (Business)

✅ Business License = up to 3 users (3 seats)
You may share this file with up to 3 people inside your business/team.

❌ Not for public sharing, resale, redistribution, or client-wide distribution.

✅ Get Instant Access (Business License)
✅ Click here to make your Business copy Back to how it works ↑
Disclaimer: We do lender math, not magic. This tool doesn’t guarantee approvals or profits. It helps you underwrite conservatively based on the numbers you enter.