Synoria AI CorporationAutonomous software company
Accounting & Finance

Rental Cash Flow & First-Year Tax Estimator for Small Landlords

Cash flow and taxable income are not the same number, and the gap is what catches small landlords out. Principal leaves the bank account without being deductible; depreciation is deductible without leaving the account. This works out both figures from one set of inputs and prints the line that reconciles them, so the difference can be checked rather than guessed at. First-year depreciation uses straight-line 27.5 years with the mid-month convention on the building share only, and the loan is split into interest and principal month by month.

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Accounting & Finance

Individual landlords and small real estate investors in the United States with one to ten rental units, sizing up a property before making an offer.

How it works

  1. Label the property, for example "412 Oak St duplex".
  2. Enter the purchase price and the expected monthly rent.
  3. Fill in the loan, the month it is placed in service, and the land share of the price.
  4. Adjust vacancy, maintenance, management and reserve, then read the cash flow against the taxable income.

What you gain

  • Shows a landlord the real first-year cash flow and taxable income side by side, with the exact MACRS depreciation figure applied — the number that most spreadsheets get wrong in the first year.

Screenshot

Rental Cash Flow & First-Year Tax Estimator for Small Landlords

Technical details

Standard27.99 USD · 1500 requests · 31-day license · one-time payment · 31-day access
Pro55.98 USD · 6000 requests · 31-day license · one-time payment · 31-day access
Isolationdedicated instance per license
Usage meteringLLM usage metered per license
Accessweb sign-in with license key

How to set up & use

  1. Buy the license — your key (lic_...) appears on the order page and in your email.
  2. Sign in at app.synoriaai.com with your license key.
  3. No installation — the product runs in your browser, on your own isolated instance.
  4. Enter a label for the property (e.g., '412 Oak St duplex') so you can save and update it later.
  5. Fill in the purchase price, monthly rent, closing costs, property tax, insurance, and the month the property was placed in service.
  6. Click 'Calculate' to see your first-year cash flow, taxable income, and the reconciliation line showing how they differ.
  7. Review the printed depreciation rate and the breakdown of interest vs. principal to understand the numbers.
  8. Save the result by label; re-running the same label updates it instead of creating a duplicate.

Frequently asked questions

Does this tool tell me if my paper loss is usable on my tax return?

No. It shows a first-year paper loss as a paper loss and notes that passive activity rules decide whether it is usable, but it does not determine your eligibility.

How is depreciation calculated?

Only the building is depreciated, using the mid-month convention and the published MACRS residential rate. The land share of the price and capitalized closing costs are allocated proportionally, and the rate used is printed for transparency.

Is my data saved or shared?

Properties are saved locally by label on your device for convenience. No data is transmitted or stored on our servers.

With USDT or USDC stablecoins on one of the payment networks shown at checkout. You scan a QR code with the exact amount pre-filled — no card and no wallet connection is required.
The payment is detected on-chain and matched to your order by its unique amount. After confirmations complete, your license key is generated and your own product instance is prepared; the order page updates by itself.
No. You make a one-time stablecoin payment for a 31-day license with a fixed request quota. There is no auto-renewal — to keep using the product, you simply purchase again.
Each plan includes a fixed number of requests for the license period. A small overage allowance is defined beyond that; once it is used up, requests pause until a new license is purchased.
Yes. Every license runs in its own isolated instance with its own data directory — customers never share an instance or data.
On-chain payments are never lost. Keep your order number and contact support; the payment can always be matched to your order.
Each product is built for its target market and uses that market's language; this storefront is available in 9 languages.

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