Tax & Accounting Expertise for a Changing Financial World.
Serving clients nationwide from our office in Commack, New York.
Mac Tax is a modern CPA firm helping individuals and businesses navigate taxes, accounting, cryptocurrency, and complex financial decisions with confidence.
From personal and business tax preparation to cryptocurrency tax reporting, bookkeeping, tax planning, R&D Tax Credits, and fractional CFO services, our team combines experienced guidance with modern technology to make accounting simpler, smarter, and more strategic.
Business Tax & Accounting
Running a business creates financial decisions that extend far beyond filing an annual tax return. Mac Tax provides tax and accounting services designed to help business owners stay organized, meet their tax obligations, and make informed financial decisions.
Personal Tax Services
Personal taxes can become complicated when investments, business interests, multiple sources of income, or other financial considerations are involved. Mac Tax provides professional individual tax preparation and guidance with an emphasis on accurate reporting, tax efficiency, and helping clients understand the decisions that can affect their tax position.
Cryptocurrency Tax Services
Cryptocurrency creates tax challenges that many traditional accounting firms are not equipped to handle. Mac Tax specializes in cryptocurrency and NFT tax reporting, helping clients organize and reconcile digital-asset activity and properly account for taxable transactions. Whether you have activity across multiple exchanges, wallets, or digital assets, our team can help bring clarity to complicated crypto tax reporting. Whether you are investing in cryptocurrency in your personal name or have cryptocurrency held in a business or trust Mac Tax CPA can help.
Fractional CFO Services
Growing businesses often need strategic financial expertise before they need or want a full-time chief financial officer. Mac Tax provides fractional CFO services that give business owners access to higher-level financial insight and guidance. We help businesses better understand their numbers, evaluate financial decisions, and build a stronger foundation for sustainable growth.
ABOUT MAC TAX
More Than
Tax Preparation.
Your accountant should do more than prepare forms once a year.
At Mac Tax, we take an advisory-first approach to tax and accounting. Our team works to understand the complete financial picture, identify tax-efficient opportunities, maintain accurate financial information, and help you make informed decisions throughout the year.
Whether you're filing an individual tax return, managing a growing business, navigating cryptocurrency transactions, or looking for higher-level financial guidance, we provide the expertise and support to help you move forward with confidence.
OUR SERVICES
Tax, Accounting &
Advisory
Business Tax & Accounting
Running a business creates financial decisions that extend far beyond filing an annual tax return. Mac Tax provides tax and accounting services designed to help business owners stay organized, meet their tax obligations, and make informed financial decisions.
Personal Tax Services
Personal taxes can become complicated when investments, business interests, multiple sources of income, or other financial considerations are involved. Mac Tax provides professional individual tax preparation and guidance with an emphasis on accurate reporting and tax efficiency.
Cryptocurrency Tax Services
Cryptocurrency creates tax challenges that many traditional accounting firms are not equipped to handle. Mac Tax specializes in cryptocurrency and NFT tax reporting, helping clients organize and reconcile digital-asset activity.
Fractional CFO Services
Growing businesses often need strategic financial expertise before they need, or want, a full-time chief financial officer. Mac Tax provides fractional CFO services that give business owners access to higher-level financial insight.
WHY MAC TAX
A Modern CPA Firm Built
Around Better Advice.
Accounting shouldn’t feel outdated, confusing, or disconnected from the decisions you make every day.
Mac Tax combines experienced tax and accounting professionals with modern technology to create a more efficient client experience. More importantly, we strive to become a trusted financial resource our clients can turn to when important personal and business decisions arise.
Many financial decisions have tax consequences. Our goal is to help clients understand those consequences and identify tax-efficient strategies before important decisions are made, whenever possible.
We help clients organize and reconcile activity across exchanges, wallets and digital assets, and report cryptocurrency and NFT transactions accurately, whether they are held personally or inside a business or trust.
Secure document sharing, digital signatures and modern accounting tools make working with us efficient, while every client keeps a direct relationship with their advisor.
ABOUT MAC TAX
Led By Experience. Built For What’s Next.
Mac Tax is led by founder Justin Macari, CPA, whose experience spans individual and business taxation.
Justin earned his MBA and accounting degrees from Adelphi University and began his career working with high-net-worth individual tax returns before joining PwC. At PwC, he worked directly with businesses on federal, state, and foreign income tax returns, gaining experience with companies ranging from startups to organizations generating more than $500 million in revenue.
Justin began building Mac Tax in 2020 and transitioned to the firm full time in 2021. Today, Mac Tax has grown into a team of tax and financial professionals serving individuals and businesses with a shared philosophy: provide clients with more than tax preparation by helping them make smarter, more informed financial decisions.
Specialized Knowledge For Modern Taxpayers.
The financial world is changing quickly. Cryptocurrency, digital assets, evolving tax regulations, new business models, and increasingly complex reporting requirements have created situations that require more than a traditional approach to accounting.
Mac Tax combines established CPA expertise with experience in emerging areas of taxation. That allows our team to serve traditional individuals and businesses while also helping clients navigate financial situations that many accounting firms may not routinely encounter.
Whether you need help preparing a return, organizing business finances, planning for future tax obligations, resolving an IRS issue, or understanding cryptocurrency reporting, you have access to a team prepared to look at the bigger picture.
Tax Planning That Looks
Beyond April
Good tax planning doesn’t begin when it’s time to file your return.
Mac Tax helps individuals and businesses take a proactive approach to taxes by considering how financial and business decisions may affect their tax position before year-end. Depending on your circumstances, planning may involve business structure, income timing, investments, estimated taxes, deductions, or other tax considerations.
Our goal is straightforward: help you make informed decisions while remaining compliant with applicable tax requirements.
When Tax Issues become complicated, you don't have to Handle them alone
Receiving an IRS notice or discovering a tax-reporting issue can be stressful, particularly when cryptocurrency or complex transactions are involved.
Mac Tax provides IRS representation and notice-resolution services to help clients understand the issue, organize the necessary information, and determine an appropriate path forward. We have helped clients through several IRS and State audits. We are here to calm the uncertainty and fight for you.
Why Clients Choose Mac Tax.
CPA Expertise
Mac Tax brings together Certified Public Accountants and experienced tax professionals with expertise across individual and business taxation.
Business & Personal Tax Knowledge
From individual returns to S corporations, partnerships, and C corporations, our team understands a wide range of tax situations.
Cryptocurrency Tax Specialization
Access specialized cryptocurrency and NFT tax knowledge from a CPA firm experienced in digital-asset reporting.
Business Advisory support
Go beyond tax compliance with bookkeeping, tax planning, business consulting, and fractional CFO services.
Modern, Responsive service
Technology helps us create a more efficient accounting experience without losing the personal relationship between client and advisor
Nationwide client support
Mac Tax works with individuals and businesses across the United States while maintaining its office in Commack, New York.
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