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?

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Costa Rican Tax Planning and Compliance

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

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Cost Segregation Studies

Are you a real estate developer?

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Operational and Internal Control Assessments

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

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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.

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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.

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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

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
Dec, 31

2026 Business Standard Mileage Rate

December 31, 2025 by relanetAdmin

The Internal Revenue Service has announced that the optional standard mileage rate for business use of automobiles will increase by 2.5 cents in 2026, while the mileage rate for vehicles used for medical purposes will decrease by half a cent. Optional standard mileage rates are used to calculate the deductible costs of operating vehicles forRead more about 2026 Business Standard Mileage Rate[…]
Read more 2026 Business Standard Mileage Rate
Dec, 31

Guidance on Trump Accounts Announced

December 31, 2025 by relanetAdmin

The Department of the Treasury and the Internal Revenue Service has issued a notice announcing upcoming regulations and providing guidance regarding Trump Accounts, which are a new type of individual retirement account (IRA) for eligible children. The Working Families Tax Cuts provides for establishing a Trump Account on behalf of every eligible child for whomRead more about Guidance on Trump Accounts Announced[…]
Read more Guidance on Trump Accounts Announced
Nov, 21

Guidance for People Who Received Tips or Overtime Pay in 2025

November 21, 2025 by relanetAdmin

The Internal Revenue Service have issued guidance for workers eligible to claim the deduction for tips and for overtime compensation for tax year 2025. Specifically, the IRS clarified for workers how to determine the amount of their deduction without receiving a separate accounting from their employer for cash tips or qualified overtime on information returnsRead more about Guidance for People Who Received Tips or Overtime Pay in 2025[…]
Read more Guidance for People Who Received Tips or Overtime Pay in 2025
Nov, 21

Increased Limits for 401(k) and IRA Plans

November 21, 2025 by relanetAdmin

The Internal Revenue Service has announced that the amount that individuals can contribute to their 401(k) plans, 403(b) plans, governmental 457 plans, and the federal government’s Thrift Savings Plan plans in 2026 has increased to $24,500, up from $23,500 for 2025. The limit on annual contributions to an IRA is increased to $7,500 from $7,000.Read more about Increased Limits for 401(k) and IRA Plans[…]
Read more Increased Limits for 401(k) and IRA Plans
Oct, 29

Form 1099-K threshold reverts to $20,000

October 29, 2025 by relanetAdmin

Recent legislation retroactively reinstated the reporting threshold in effect prior to the passage of the American Rescue Plan Act of 2021 (ARPA) so that third party settlement organizations are not required to file Forms 1099-K unless the gross amount of reportable payment transactions to a payee exceeds $20,000 and the number of transactions exceeds 200.Read more about Form 1099-K threshold reverts to $20,000[…]
Read more Form 1099-K threshold reverts to $20,000
Oct, 29

Inflation Adjustments for Tax Year 2026

October 29, 2025 by relanetAdmin

The Internal Revenue Service has announced the tax year 2026 annual inflation adjustments for more than 60 tax provisions, including the tax rate schedules and other tax changes. Notable changes The tax year 2026 adjustments described below generally apply to tax returns filed in 2027. Of particular interest to many taxpayers: Standard Deduction. For taxRead more about Inflation Adjustments for Tax Year 2026[…]
Read more Inflation Adjustments for Tax Year 2026
Sep, 24

Final Regulations for Catch-up Contributinos

September 24, 2025 by relanetAdmin

The IRS issued final regulations on September 15 addressing the new Roth IRA catch-up contribution rule enacted as part of the SECURE 2.0 Act in December 2022. These final regulations generally follow the proposed regulations issued in January 2025, with some changes made in response to comments the IRS received. The new rule generally requiresRead more about Final Regulations for Catch-up Contributinos[…]
Read more Final Regulations for Catch-up Contributinos