A Cost Basis Calculator
You Can Trust

For more than 25 years, Netbasis has been recognized as the benchmark for cost basis calculations among professionals.

Fast and Accurate!

Netbasis delivers quick and precise cost basis and capital gains tax calculations using a comprehensive database of corporate actions, prices, and dividends for various investments since 1925. Our system simplifies tax season by providing adjusted cost basis, gains/losses, investment performance, and detecting wash sale violations, ideal for clients with incomplete investment records. Just enter the purchase and sale information to begin.


Get Started!

A Cost Basis Calculator You Can Trust

For more than 25 years, Netbasis has been recognized as the benchmark for cost basis calculations among professionals.

Fast and Accurate!

Netbasis delivers quick and precise cost basis and capital gains tax calculations using a comprehensive database of corporate actions, prices, and dividends for various investments since 1925. Our system simplifies tax season by providing adjusted cost basis, gains/losses, investment performance, and detecting wash sale violations, ideal for clients with incomplete investment records. Just enter the purchase and sale information to begin.

Get Started

BUY ONE COST BASIS REPORT
GET ANOTHER FREE.

The Netbasis Tax Season Promotion for Professionals is here!

STEP ONE

SIGN UP FOR YOUR FREE ACCOUNT

Create your complimentary account by registering as a user and discover the features of Netbasis.

STEP TWO

NAVIGATE TO THE E-COMMERCE PAGE

Locate the Purchase icon to access the exclusive 2 for 1 promotional deal.

STEP THREE

SELECT YOUR SECURITIES AND GO!

With your personal account set up, you can now address your intricate cost basis problems and instantly produce a time-ordered report.

Sign up to access Netbasis
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A Century of Complete Coverage

We have all
your security’s
corporate actions.

Netbasis is the only investment tax tool that can determine the historical cost basis of virtually any security going back as early as 1925. Our rich proprietary data and patented technology allows Netbasis to provide other key wealth management tools that are essential to our users.

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A Century of Complete Coverage

We have all
your security’s
corporate actions.

Netbasis is the only investment tax tool that can determine the historical cost basis of virtually any security going back as early as 1925. Our rich proprietary data and patented technology allows Netbasis to provide other key wealth management tools that are essential to our users.

"What Information Do I Need To Start Using Netbasis?"


Netbasis has your security’s corporate actions (splits, mergers, spin-off, etc), pricing and dividend information. Netbasis requires only a minimum amount of information from you to calculate your cost basis. After identifying the original security you acquired, you just need to enter the following information:

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Acquisition and Sale Dates

Enter the acquisition date(s) for the shares you acquired (purchased, inherited or received in a spin-off). Then enter the date(s) of shares you sold.

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Amount of Shares

Enter the number of shares for every acquisition. Then enter the number of shares for every sale.

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Dividend Dates

You don’t have to enter every dividend. Click “Yes” if you reinvested dividends for the entire holding period or enter the start or end dates.

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Advanced Security

512 Bit

AES ENCRYPTION

Total Transactions Processed

325M+

PROVEN ACCURACY

Years of Service

25 Years

THE POWER OF RELIABILITY

Securities Covered

115K+

EQUITY & DIGITAL ASSETS

Access the Power of Netbasis this Tax Season.

Historical Cost Basis Calculation

A comprehensive tool to determine the cost basis for various investments, crucial for tax reporting and strategizing sales.

Wash Sales Deferral Loss

An advanced feature to navigate complex wash sale scenarios, ensuring accurate loss deferrals and tax compliance.

Gifting Calculation

Essential for donors and recipients to establish the value of gifted securities, aiding in tax planning and compliance.

Estate Calculations

Key for accurate estate settlement, providing essential valuations and compliance with IRS requirements.

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Solve Your Client’s Cost Basis Problems!


Netbasis offers a crucial cost basis calculation tool tailored for financial and tax professionals. This robust online application tackles intricate client cost basis challenges, ensuring swift and precise outcomes. It aids in maintaining compliance with IRS regulations regarding capital gain and loss reporting for your clients.


WHAT OUR CLIENTS ARE SAYING ABOUT US


"When I used Netbasis, I was just happy to know that I wasn’t going to have to try to figure out the cost basis on my AT&T shares, but I ended up finding out that I owned a lot more shares in different companies than I knew about!"

Meredith K. - Scottsdale, AZ

"Our firm has invested in a suite of applications offered by NetWorth which has allowed us to offer a higher level of investment services and increase our AUM."

Christopher F., Money Manager - New York, NY

"Even for someone in the investment business, corporate actions can be unbelievably difficult when trying to calculate your client’s cost basis. Having an automated system really saves a lot of time and frustration."

David B., Registered Investment Advisor - New York, NY

"I have quite a few clients whose investments go back quite a few years, either because they have invested for most of their adult life or they may have inherited investments. Netbasis allows me to quickly and easily handle complex investments within minutes. Before I started using this system, I was using spreadsheets and having nightmares!"

John H., Accountant - Boston, MA