**Property investment calculator** is a term used to define an application that provides fundamental financial analysis underpinning the purchase, ownership, management, rental and/or sale of real estate for profit. Property Investment Calculators are typically driven by mathematical finance models and converted into source code. Key concepts that drive property investment calculators include returns, cash flow, affordability of financing, investment strategy, equity and risk management.

Here are some of the calculations that one may expect to see from a property investment calculator along with definitions.

- Cash on Cash Return - Your cash flow in year 1 divided by your cash invested in the property.
- Equity Build Up Rate - Your increase in equity in year 1 from mortgage principal payments divided by your cash invested in the property.
- Capitalization Rate - Your Net Operating Income(NOI) divided by your property's asset value.
^{[1]} - Gross Rent Multiplier - The ratio between a rental property's gross scheduled income and its market value.
- Net Cash Flows - The amount of cash you expect to receive after expenses.
- Net Present Value of Future Cash Flows - The sum of your net future cash flows discounted back to the present value using the time value of money to understand what future cash flows are worth today.
- Gross Rental Income The total rental income one expects to receive.
- Operating Expenses - All expenses associated with operating the property. These can include homeowner's insurance, property taxes, and maintenance expenses to name a few.
- Net Operating Income(NOI) - Net operating income is also known as net income and is your income received after subtracting all operating expenses. This will exclude income taxes and interest.
- Depreciation
^{[2]}- The expense associated with the depreciation of your property. For more information on depreciation, see IRS Publication 946. - Tax Savings From Depreciation - The amount of taxes saved from using depreciation as an expense against income.
- Debt to Asset Ratio - The ratio of debt remaining on the property to the value of the property or asset.
- Internal Rate of Return - Technically speaking, it is the discount rate at which the Net Present Value of Future Cash Flows equals $0. In laymen terms, it is the rate of return you will receive on your investment in a given year adjusting for the time value of money.

- House Flipping Calculator
- Rental Property Calculator

In response to 2007 subprime mortgage crisis and preceding US Property Bubble, a number of residential property investment analysis tools and applications have been launched to the public by both government, commercial organisations and as part of open source projects. These analytical tools have been developed to help real estate investors to understand the risk and returns of residential property investing. These tools have included mortgage calculator, residential property depreciation calculators and property investment calculators. A number of web technology companies have also developed comprehensive all-in-one packages that provide financing, risk and return analysis, investment strategy and portfolio management capabilities.

**^**root (2003-11-18). "Capitalization Rate".*Investopedia*. Retrieved 2016-11-13.**^**"Publication 527 (2015), Residential Rental Property".*www.irs.gov*. Retrieved 2016-11-13.

- Capitalization rate
- Cash on cash return
- Creative Real Estate Investing
- Real-estate developer
- Off plan property
- Internal rate of return
- Investment Rating for Real Estate
- Flipping
- Wholesaling
- Rental Property Calculator (Rental Property Analysis Software)

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