Rich Coast Accounting

Our Story

Rich Coast Accounting was founded by Robert L. Pioso, US CPA CGMA in 2012 after moving to Costa Rica permanently in 2009. With 25 years of experience as a CPA licensed in the State of Illinois, he is one of the few professionals in Costa Rica who understands and works with both US and Costa Rican tax systems and accounting compliance and business planning matters, while being able to communicate in English.

Robert has extensive experience in financial, operational and internal control matters of Costa Rican businesses and the regulatory environment for successfully operating small businesses.

He also provides counsel and reviews cross border tax structures (US and Costa Rica) to create tax savings and minimization strategies. He also assist taxpayers in both the US and Costa Rica with their compliance needs.

A native of the US Midwest (Chicago and Milwaukee), Mr. Pioso worked for two large CPA firms and was the CFO of a real estate development and timeshare company. As one of the only three recognized tax professionals in Costa Rica, by the Internal Revenue Service, he has offices in both Escazu (San Jose) and Nosara (Guanacaste) and has a staff of 6.

Rich Coast Accounting services a variety of clients all over Costa Rica - Nosara, Puerto Viejo, San Jose, Jaco, Manual Antonio, Perez Zeldon, Tamarindo, Playa de Coco, Playa Flamingo, and Uvita.

Robert is a member in good standing in the following professional organizations. Click below to see which ones and review his credentials.

LIcenses/Memberships

Our Services

Costa Rican Business Accounting and Bookkeeping

Need a new way of tracking, organizing and managing your finances?

More Info

Costa Rican Tax Planning and Compliance

Nobody likes to pay more taxes than they should and many find taxation a foreign language.

More Info

Cost Segregation Studies

Are you a real estate developer?

More Info

Operational and Internal Control Assessments

Operating a business in a foreign country can be very challenging.

More Info

US Tax Compliance and Planning

If you are from the USA you are generally are required to file a income tax return – even if the source of the income is outside the USA.

More Info

New Company Registration Services

Costa Rica remains one of the safest and most attractive countries for foreign investment in Latin America and also has become a very popular destination for tourism given its proximity to the United States.

More Info

Our Customers

Here's what real clients have to say about Rich Coast Accounting...

Rich Burnam, Surfing Nosara Services

Nosara, Costa Rica

"We are proud to recommend Rich Coast Accounting. We very much appreciate their attention to detail and guidance. They have provided clear and coherent tax advice and transaction planing for many of our clients and ourselves. Having an English speaking CPA who is knowledgeable about US and Costa Rican taxes and business allows us to add deeper value to our relationships and operating ventures."

Brandon Richardson, Wanderlust Realty

Nosara, Costa Rica

"Over the last few years I have entrusted Robert and his team with all of my personal accounting and the books for my business as well. Not only is the service they offer impeccable, but Robert plays a key role in assisting me with my financial and growth strategy. As an American businessman who has operated multiple businesses in Costa Rica for the last 16 years, Robert and his team are indispensable to my success."

Javier Escalante, Attorney

San Jose, Costa Rica

"Robert (Rich Coast) has been of great help in providing crucial insight and support to a joint client who develops real estate and provides property management services. With his guidance and ideas, the client has been able to create the internal processes and financial systems that were needed. He has vast knowledge of both US and Costa Rican tax, accounting and operating aspects of businesses."

Josh Walker, Pura Vida Management

Nosara, Costa Rica

"Rich Coast Accounting provides Skipper Property Management with prompt and professional services and support. Our back office is able to maintain valuable repport with our clients due to the support that Rich Coast has helped develop and streamline."

Andrew Saxton, Nosara Design & Build

Nosara, Costa Rica

"I use Robert/Rich Coast Accounting for my personal and business accounting both in the US and Costa Rica. Being able to know I'm correctly covered in both gives me and my business peace of mind."

Camilo Guarin, Secure Wrap

Alajuela, Costa Rica

"Rich Coast accounting and their staff are very professional and they know what it takes to create and maintain a business in Costa RIca. When entering a new market, you always feel the fear of the unknown, thankfully we had Robert and his staff to help guide us through the every step of the process. Their team proved to us that they have the experience and professionalism to address all kinds of problems. When issues come up, Rich Coast addresses them quickly and provides solutions. They always go the extra step, and for that we are grateful."

Mike Dlugosh

Jaco, Costa Rica

"Robert has been a true help in understanding my financial situation and managing my US and Costa Rican tax filings. He has provided me timely advice that has helped me save taxes. It is unique to find somebody who speaks English that can explain the nuances of the Costa Rican business and tax system."

Eric Robinson, Adventure Inn

San Jose, Costa Rica

"I have been doing business in Costa Rica since 1995 owning two consecutive San Jose hotels. I have had bookkeepers and so called accountants doing my books and it was a huge mistake, ruining on more than one occasion the sale of my hotels. They just didn't have any ideas, or ways to reduce my taxable income. Out of frustration, I miraculously found Robert Pioso on the Internet. I was finally able to communicate with my accountant in English, and go very in depth with our conversations. For two and a half years Robert has been doing my books, and finally I have clear concise financial statements I can proudly present to potential buyers. He formed other corporations to spread out the tax burden and reduced my taxes to a fraction of what I was paying before, yet we are grossing and netting higher than ever before. But more than this, Robert takes the time to explain my options. He makes suggestions where we are weak and could use improvement, and has voluntarily made good solid suggestions to keep my hotel viable. I can't express enough how happy and satisfied I am with the work he does for me."

Latest News

Jun, 24

Federal Tax Credits for Contributions to Scholarship Granting Organizations

June 24, 2026 by relanetAdmin

The Internal Revenue Service announced that 27 states have elected to participate in the Federal Scholarship Tax Credit (FSTC) program, which enables eligible taxpayers to claim a federal tax credit for qualified contributions to Scholarship Granting Organizations (SGOs) providing scholarships for qualified elementary and secondary education expenses. In order to claim the tax credit ofRead more about Federal Tax Credits for Contributions to Scholarship Granting Organizations[…]
Read more Federal Tax Credits for Contributions to Scholarship Granting Organizations

Jun, 24

Is Your Business a Business or a Hobby?

June 24, 2026 by relanetAdmin

Many people have hobbies – things they enjoy doing in their spare time – and some even make a little extra money from them. But there’s a difference between a hobby and a business, especially in how each is treated when it comes to filing taxes. Businesses operate to make a profit while hobbies areRead more about Is Your Business a Business or a Hobby?[…]
Read more Is Your Business a Business or a Hobby?
May, 27

Tax Tip: Check Your Withholding

May 27, 2026 by relanetAdmin

Even though the tax filing deadline for tax year 2025 passed a couple weeks ago, it’s not too early to start planning for next year so that you can avoid any unpleasant surprises. One easy thing you can do is check for proper tax withholding. What is withholding? Taxpayers need to pay their tax asRead more about Tax Tip: Check Your Withholding[…]
Read more Tax Tip: Check Your Withholding

Apr, 29

Help! I Missed the Filing Deadline!

April 29, 2026 by relanetAdmin

If you missed the April 15 filing deadline, you should submit your federal tax return as soon as possible. If you missed the deadline to file and owe taxes, it is important to file as soon as possible to avoid penalties and interest. Requesting an extension allows for additional time to file but not toRead more about Help! I Missed the Filing Deadline![…]
Read more Help! I Missed the Filing Deadline!
Apr, 29

Tipped Workers Final Regulations

April 29, 2026 by relanetAdmin

The Department of the Treasury and the Internal Revenue Service has issued final regulations on the “No Tax on Tips” provision. The One, Big, Beautiful Bill final regulations provide the list of occupations that receive tips and define “qualified tips” that eligible taxpayers may claim as a deduction. The final regulations list more than 70Read more about Tipped Workers Final Regulations[…]
Read more Tipped Workers Final Regulations

Mar, 25

Proposed Regulations Issued for “Trump Accounts”

March 25, 2026 by relanetAdmin

The Department of the Treasury and the IRS have issued proposed regulations providing general requirements for Trump Accounts, certain definitions relating to Trump Accounts, election rules to open an initial Trump Account by an authorized individual for an eligible individual, and rules for who is the responsible party for the initial Trump Account once theRead more about Proposed Regulations Issued for “Trump Accounts”[…]
Read more Proposed Regulations Issued for “Trump Accounts”
Mar, 25

New Schedule Published for OBBB Provisions

March 25, 2026 by relanetAdmin

The Internal Revenue Service published, for tax year 2025, a new schedule that you can use to take advantage of some tax benefits provided the “One, Big, Beautiful Bill” (OBBB), including no tax on tips, no tax on overtime, no tax on car loans, and no tax on seniors. Schedule 1-A and its related instructionsRead more about New Schedule Published for OBBB Provisions[…]
Read more New Schedule Published for OBBB Provisions

Feb, 27

Tax Updates and Resources for Seniors

February 27, 2026 by relanetAdmin

There are some changes for the 2026 tax filing season that people who are 65 years of age and older should be aware of. The most recent being the enhanced deduction for seniors, which is provided for in recent legislation. Enhanced deduction for seniors This is a new deduction that is in addition to theRead more about Tax Updates and Resources for Seniors[…]
Read more Tax Updates and Resources for Seniors
Feb, 27

New and Enhanced Deductions for Individuals

February 27, 2026 by relanetAdmin

There are several new tax deductions that have been introduced for the 2026 filing season. A deduction is an amount subtracted from the taxpayer’s income when filing. Deductions lower the taxable income resulting in lowering the federal income tax obligation. New deductions for 2026 filing season Seniors age 65 and older may be eligible toRead more about New and Enhanced Deductions for Individuals[…]
Read more New and Enhanced Deductions for Individuals

Jan, 30

How to Take Advantage of No Tax on Tips and Overtime

January 30, 2026 by relanetAdmin

The One, Big, Beautiful Bill (OBBB) has a significant effect on federal taxes, credits and deductions. Millions of taxpayers reported earning tips and overtime on their tax returns, many of them are veterans and people working in lower wage jobs. This relief will impact most of these taxpayers and they can start taking advantage ofRead more about How to Take Advantage of No Tax on Tips and Overtime[…]
Read more How to Take Advantage of No Tax on Tips and Overtime