Trust Services
401k Sponsorships
IRA Retirement Plans
The South Dakota Advantage
Build, Manage, and Preserve Wealth for Generations to Come
Cornerstone Private Asset Trust Company, LLC, is boutique trust company that helps businesses and individuals implement estate planning goals and transition wealth from one generation to the next. It provides services above and beyond those of a traditional trust company by focusing on the individual nature of each client and their long-term goals.
An independent public trust company based in Sioux Falls, South Dakota, Cornerstone provides unique tax advantages to its clients as well as a wide variety of specialized trust services, including trusts under wills as well as dynasty, charitable, revocable living trusts.
In the retirement plan area, Cornerstone develops plans to meet the needs of the employees, the company and the owners. It specializes in working with business owners who excel at running their businesses, but do not want to be experts in retirement planning. Cornerstone works as a retirement planning partner keeping business owners informed on the status of their plans as well as their fiduciary responsibility as the plan sponsor of the company’s retirement program.
Contact Us
Download Our Free App
We’ve built a handy mobile app that allows you to easily stay in touch with us on-the-go wherever you are. Ask us questions, send and receive secure messages, request an appointment, get directions to our office, receive helpful notifications, and more.
Helpful Content
A Penny Saved is Two Pennies Earned
Here are some simple and inexpensive energy-saving tips that may help you save money.
Social Security: Five Facts You Need to Know
Here are five facts about Social Security that are important to keep in mind.
The Other Sure Thing
Though we don’t like to think about it, all of us will make an exit sometime. Are you prepared?
How the Federal Reserve Works
Each day, the Fed is behind the scenes supporting the economy and providing services to the U.S. financial system.
What Is a Roth 401(k)?
Roth 401(k) plans combine features of traditional 401(k) plans with those of a Roth IRA.
A Cheat Sheet for Sending Your Kid to College
Dropping off your son or daughter is loaded with emotions; here are a few tips for a smoother experience.
Tax Reform: Before and After
What did the 2017 Tax Cuts and Jobs Act change? Here's a quick snapshot.
What If You Get Audited?
The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing.
Buying Auto Insurance For Teen Drivers
Tips on insuring your teen driver.
View all articles 
Home Mortgage Deduction
Use this calculator to assess the potential benefits of a home mortgage deduction.
What Is the Dividend Yield?
This calculator helps determine your pre-tax and after-tax dividend yield on a particular stock.
Potential Income from an IRA
Estimate your monthly and annual income from various IRA types.
Taxable vs. Tax-Deferred Savings
Use this calculator to compare the future value of investments with different tax consequences.
Historical Inflation
This calculator shows how inflation over the years has impacted purchasing power.
Estimate Your RMD
Help determine the required minimum distribution from an IRA or other qualified retirement plan.
View all calculators
Keys to Investing for Retirement
There are some key concepts to understand when investing for retirement
Protecting Those Who Matter Most
The importance of life insurance, how it works, and how much coverage you need.
Principles of Preserving Wealth
How federal estate taxes work, plus estate management documents and tactics.
Tax Management Strategies
Learn more about taxes, tax-favored investing, and tax strategies.
Retirement Plan Distributions
There are a number of ways to withdraw money from a qualified retirement plan.
5 Smart Investing Strategies
There are some smart strategies that may help you pursue your investment objectives
View all presentations
Are Alternative Investments Right for You?
With alternative investments, it’s critical to sort through the complexity.
Social Security: By the Numbers
Here are five facts about Social Security that might surprise you.
Should I Invest in Gold?
Learning more about gold and its history may help you decide whether it has a place in your portfolio.
Where Is the Market Headed?
We all know the stock market can be unpredictable. We all want to know, “What’s next for the financial markets?”
The Latte Lie and Other Myths
Do you know these three personal finance sayings?
A Bucket Plan to Go with Your Bucket List
A bucket plan can help you be better prepared for a comfortable retirement.