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
Coaches
Coaches have helped you your whole life, in ways big and small. We’d like to be one of them.
Prevent a Rift: Money Tips for Newlyweds
Couples may be able to head off many of the problems in a marriage that money can cause.
Countdown to College
Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way.
Choosing a Business Structure
Entrepreneurs all face the same question, “Which business structure should I adopt?”
Systematic Withdrawals in Retirement
Taking regular, periodic withdrawals during retirement can be quite problematic.
Pullbacks, Corrections, and Bear Markets
Pullbacks, corrections, and bear markets are all a part of the investing cycle. When the market experiences volatility, it may be a good time to review these common terms.
When Should You Take Social Security
Monthly Social Security payments differ substantially depending on when you start receiving benefits.
Retirement Questions That Have Nothing to Do With Money
Things to consider before retirement.
Choose Your Own Retirement Adventure
Retirement is one of the greatest adventures you’ll have. Which retirement adventure will you choose?
View all articles 
Potential Income from an IRA
Estimate your monthly and annual income from various IRA types.
Roth 401(k) vs. Traditional 401(k)
This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).
What Is My Current Cash Flow?
Assess whether you are running “in the black” or “in the red” each month.
Should I Buy or Lease an Auto?
This calculator compares the financial impact of leasing versus buying an automobile.
Contributing to an IRA?
Determine if you are eligible to contribute to a traditional or Roth IRA.
Tax Freedom Day
Assess how many days you'll work to pay your federal tax liability.
View all calculators
Principles of Preserving Wealth
How federal estate taxes work, plus estate management documents and tactics.
Managing Your Lifestyle
Using smart management to get more of what you want and free up assets to invest.
Investment Strategies for Retirement
Investment tools and strategies that can enable you to pursue your retirement goals.
An Inside Look at Retirement Living
A number of questions and concerns need to be addressed to help you better prepare for retirement living.
Your Cash Flow Statement
A presentation about managing money: using it, saving it, and even getting credit.
5 Smart Investing Principles
Principles that can help create a portfolio designed to pursue investment goals.
View all presentations
A Fruitful Retirement: Social Security Benefit
Taking your Social Security benefits at the right time may help maximize your benefit.
The Power of Tax-Deferred Growth
Why are 401(k) plans, annuities, and IRAs so popular?
Exit Strategies of the Rich and Famous
Estate conservation is too important to put off. Do you have a smart exit strategy?
Once Upon a Goal
Do you know how to set up your financial goals for success? This knight does.
Saving for College 101
Here’s a crash course on saving for college.
The Real Cost of a Vacation Home
What if instead of buying that vacation home, you invested the money?