(571) 314-1000 Based in Puerto Rico · serving nearly every U.S. state
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About JST Advisor, LLC

Over 17 years of accounting and tax experience, delivered personally — to individuals and small businesses across the United States.

Jonatan Soto, Owner and Tax Professional at JST Advisor, LLC
Jonatan Soto Owner & Tax Professional
Who you’ll be working with

You deal with Jonatan, not a call centre

JST Advisor is a small firm by design. The person who takes your first call is the person who prepares your return.

Jonatan Soto has more than seventeen years of accounting and tax experience, working with everyone from independent contractors and small “DBA” businesses to established companies with more complex structures. That work covers bookkeeping, payroll, tax preparation, business formation, financial guidance and tax planning.

He holds a Master in Business Administration with a major in Accounting.

He founded JST Advisor, LLC in 2016 and has run it as a virtual firm since, working in English and Spanish.

Jonatan works from Puerto Rico and knows the island’s rules. Filing here means Hacienda as well as the IRS, and bona fide residency changes both what you owe and what you have to report. That is not something he read up on for a brochure — it is where he lives and works.

If you are on the island, JST Advisor is taking new clients. Request a free consultation or call (571) 314-1000.

17+Years of accounting & tax experience
2016Year JST Advisor, LLC was founded
100%Virtual — paperless and secure
EN / ESBilingual service in English and Spanish

IRS-authorized e-file provider

We e-file federal and state returns directly, so refunds are processed as quickly as the agencies allow — and you get confirmation that your return was accepted. Bookkeeping runs in QuickBooks, and everything is exchanged through the secure client portal.

JST Advisor has been supporting Protect3 Solutions for the last three years and has been an invaluable partner in financials and tax planning. The knowledge and expertise in strategically planning for the tax year and financials separates them from other Advisory firms. JST Advisor has always been there to help.

Jason Hernandez Owner, Protect3 Solutions
What we stand for

The commitments behind every engagement

Tax savings & solutions

We have the skills and know-how to make sure you meet all your tax obligations without paying a penny more than you owe. If you have tax problems, we’ll help you resolve them and get a fresh start.

Integrity & responsibility

Trust is the cornerstone of a successful business or financial relationship. From providing honest advice based on sound analysis to saving trees with paperless options, we hold ourselves to the highest standards of client service. That means peace of mind for you.

Peace of mind for the future

Whether it’s family financial security or the ongoing growth of your business, long-term success comes only with in-depth analysis and careful planning. We have the knowledge and expertise to set you on a solid path toward your goals, so you can relax.

Safeguarding taxpayer data

Your information is protected — by policy and by law

Our systems are configured with the latest security updates in order to protect our customers’ data. We are legally required to safeguard your information, and we treat that obligation seriously.

Our tax preparation programs, internet portal and related software packages are purchased through IRS-approved vendors.

How to share documents safely

Always use the secure client portal for Social Security numbers, bank details and tax forms — never regular email. We will never ask you for your portal password.

  • Firewall system protecting our network perimeter
  • Anti-malware and anti-virus programs kept current
  • Strong passwords enforced across every system
  • SSL certificate securing the entire website
  • Office 365 email running full encryption
  • IRS-approved vendors for all tax and portal software
Why virtual works

Convenience without cutting corners

Thanks to today’s technology, we proudly serve clients anywhere in the United States. Whether you’re an individual filer or a growing business, we make the process simple, secure and convenient — all online. No waiting rooms, no lost paperwork, no driving across town with a folder of receipts.