For Investors

Investment Property Calculator

Monthly cash flow, cap rate, and return on your cash for a duplex, fourplex, or rental home. Change any number and the results update as you type.

Showing an example fourplex. Add an interest rate to see the cash flow, and replace any number with your own.

Purchase and Loan

The rate you have been quoted or want to test

Of the purchase price

Income

Parking, laundry, storage

Of rent

Expenses

Of the purchase price, per year

Of rent

Of rent, if you hire a manager

Monthly cash flow

Add a rate

Enter an interest rate to include the loan payment. Before financing, the property nets $6,281 a month.

Cap rate
4.71%

Net operating income as a share of the price. Ignores financing.

Cash-on-cash return
—

Yearly cash flow as a share of the cash you put in.

Debt coverage (DSCR)
—

Net operating income divided by the loan payments. Lenders look for this.

Gross rent multiplier
13.9

Price divided by a year of rent. A quick comparison between buildings.

Where the rent goes, per month
Rent and other income$9,600
Property tax−$1,467
Insurance−$400
Utilities−$300
Repairs and reserves−$768
Vacancy allowance−$384
Cash needed at purchase
$512,000
Net operating income
$75,376/yr
Loan payment
Add a rate

For estimates only. These results are not a loan offer, rate quote, or investment advice. Actual loan rates, terms, and down payments depend on the lender and the borrower, and actual rents and expenses vary by property. Verify every figure before you buy, and see what to check first on the investment property page.

Reading the Results

What is a good cap rate?

It depends on the market. On the Orange County coast, high land values keep cap rates lower than in most inland markets, so investors there often accept a lower return today in exchange for long-term growth. Compare a property with similar buildings nearby rather than with a national rule of thumb.

Why is the property tax based on the purchase price?

In California, Proposition 13 resets a property’s assessed value to the purchase price when it sells. The seller’s current tax bill is usually lower than yours will be, so always calculate from your own price. Local assessments can add to the base rate.

What does debt coverage (DSCR) tell me?

It compares the property’s net operating income with the loan payments. Above 1.0 means the income covers the debt. Many lenders that underwrite on the property’s income look for a minimum ratio, so a low number can limit how much you can borrow.

Can cash flow be negative and still be a good investment?

Sometimes. On the coast, many buyers accept little or negative cash flow in the early years in exchange for land value, appreciation, and principal paydown. Whether that works depends on your goals, your reserves, and how long you plan to hold.

Found a Property?

Let’s Check the Numbers Together

Send me the address or the listing and I will help you test the rents, expenses, and rules behind it.