Quote from @Jason Deveau: For others that use the BP Pro rental property calculator, what are you using for your Repair/Maintenance, CapEx and Vacancy numbers? 

Calculators play a key role in quickly analyzing market news and data, helping users understand changes, trends, and potential impacts.

Hi Investors,I created a fix and flip calculator with the help of ChatGPT. 

The question you need to answer is what will the rents be as that is what investors need to calculate their ROI on a hold property.If the rents do not support a purchase along with the ongoing expenses (use the rental tool here), you will have a hard time selling to an investor.

I wanted to clarify how rental income taxes are calculated, so that I can see how much I owe to uncle Sam and how much after tax cash flow I make.

Where can I use or download rental/flip calculators?

Here are some solid tools you can find online for free:1) BiggerPockets Rental Calculator: simple and reliable for quick cash flow, ROI, and cap rate checks2) Google Sheets/Excel: build your own analysis templates or use saved ones you find online3) Zillow/Redfin/Realtor: comparative sales & rent estimates4) Rentometer: great for checking realistic rent comps in specific areas.5) Mortgage Payment Calculators (Bankrate, NerdWallet, etc)Free tools and calculators are great for screening deals and running quick scenarios, but they’re only as good as the assumptions you put into them.

I am new, just wondering what you guys use as calculator to analyze deal in spreadsheets?

I have a small number of rental units now and use the standard deal models pre and post close including the BP calculator.

Understand how the calculators work, so you can modify inputs to be realistic to what you are doing.