GCECPA Accounting & Finance

GCECPA rental investment model

Analyze rental properties without rebuilding a spreadsheet every time.

Run a quick rental scenario, compare a second property, review cash flow versus P&L, and expand into depreciation, sale, and long-term forecast details when you need more depth.

Example quick result $385/mo cash timing before annual-only costs
-$231Monthly P&L
4.1%Cap rate
1.2%1% rule

Quick scenarios

Start with purchase price, loan, rooms, rents, and core expenses. Defaults let you get a first answer quickly.

Side-by-side comparison

Compare a main property against an alternate property, rate, rent, or financing structure.

Investor metrics

Review monthly cash, monthly P&L, yearly results, cap rate, 1% rule, ROI, depreciation, and sale estimates.

Expandable detail

Move from a simple dashboard into 20-year forecasts and tax-oriented schedules when needed.

Planned account model

Free for quick analysis, premium later for saved portfolios and richer reports.

Rental investment quick model

Rental Property Dashboard

Compare a rental property in minutes, then refine the details when you have them.

Property address

Total Investment $0 cash required at purchase
Monthly Cash / Out-of-Pocket $0 cash timing before annual-only costs
Monthly P&L $0 annual economics shown monthly
Yearly P&L / Cash Flow $0 full first-year view

Scenario Snapshot

Cash Flow Mix

Income Expense Equity benefit

Expanded Model Detail

Educational estimate only. Results are simplified and are not tax, legal, investment, or lending advice. Tax treatment depends on facts such as personal use, land allocation, passive loss limits, depreciation recapture, and state rules.

Main model

Main Inputs

Input the high-impact assumptions first.

Property Address

Start here. A complete address makes tax, rent, growth, import, and future property-value lookups more reliable.

Import Redfin CSV

Upload a Redfin export using the same column structure as your workbook's Redfin List tab. Pick a property and the model will populate address, price, rooms, HOA, taxes, and related fields when available.

Auto-fill market assumptions

Use the property address, city/state, or ZIP to suggest tax rate, property growth, and room rent. These start the scenario quickly and stay editable.

No estimate yet. Enter a property address or ZIP, then run the estimator.

Optional detail

Enter closing costs when you have a loan estimate.

Estimated closing costs $0
Leave unknown items at zero and use the general closing-cost input on the Main Inputs page for fast scenarios. When the closing detail is better, use the detailed total as your closing cost assumption.

Reports and saved models

Save scenarios and export working data.

Log in to save models to the backend database, then come back later to load or update the scenario.

Save Current Model

Log in on the Account page to save models to the backend.

Export

Excel export is best handled in the backend/premium version so the workbook can be generated server-side without exposing formulas.

Account and premium roadmap

Account Access

Create a local test account to save models in the backend database. This is the first working version of the future free/premium account flow.

Free

Quick calculator

Run scenarios, use Redfin CSV import, compare two properties, and export basic CSV files.

Future premium

Saved portfolio

Login, saved models, Excel/PDF reports, more scenarios, private assumptions, and deeper tax/sale schedules.

Admin

Protected engine

Move calculations and report generation to a backend API so users see results, not the full calculation code.

Important: JavaScript delivered to the browser can be inspected and copied. Minifying or obfuscating helps only a little. To truly protect your formulas and support paid accounts, the calculation engine should run on a backend server.

Admin backend

User and activity dashboard

Review users, saved models, sessions, and account activity. This page is visible only to admin accounts.

Users