Tax Services for Tech Companies & SaaS Startups

This is probably the single most common question we get from Miami tech founders, and honestly, the answer isn’t as straightforward as most blog posts make it sound. The “right”. Entity structure depends on a handful of very specific factors about your company—your funding plans, your headcount, where your customers are, and how long you plan to hold the company before an exit.

Let’s start with C-corps, since that’s where most venture-backed startups end up. A C-corporation is a separate tax entity that pays its own federal income tax at a flat 21% rate under the Tax Cuts and Jobs Act. That rate has been locked in since 2018 and isn’t scheduled to change. The appeal for startups raising outside capital is that C-corps can issue multiple classes of stock—common shares for founders, preferred shares for investors—without running into IRS restrictions. Every institutional VC fund in the country expects to invest in a Delaware C-corp. If you try to hand a Series A term sheet to a fund while structured as an S-corp, they’ll either walk away or make you convert first, which costs legal fees and triggers potential tax consequences.

The big downside of C-corps is double taxation. The company pays tax on its profits at 21%, and then when those profits are distributed as dividends to shareholders, the shareholders pay tax again—typically at the 20% qualified dividend rate plus the 3.8% net investment income tax for high earners. That’s an effective combined rate north of 39% on distributed profits. If you’re bootstrapping and want to pull cash out regularly to cover living expenses, that math hurts.

S-corps avoid that double tax entirely. Profits flow through to shareholders’. Personal returns and are taxed once. But S-corps come with restrictions that make them impractical for most funded startups: you can only have 100 shareholders, all shareholders must be U.S. citizens or residents, and you can only have one class of stock. That single-class-of-stock rule is the deal-breaker for VC-backed companies. You can’t create preferred shares with liquidation preferences, participation rights, or anti-dilution protections under an S-corp structure.

For Miami founders specifically, there’s a massive advantage that didn’t exist a decade ago: Florida has no state income tax. That means your pass-through S-corp income faces zero state-level tax. Compare that to a California founder paying 13.3% on the same income, and you can see why so many tech workers have relocated to South Florida. A founder earning $400,000 in pass-through income saves roughly $53,000 annually just on state taxes by being in Florida instead of California. Over five years, that’s more than a quarter million dollars.

But here’s where it gets detailed. If you’re running an S-corp, you’re required to pay yourself a “reasonable salary”. And run payroll taxes on that amount. The IRS scrutinizes tech company S-corps that pay suspiciously low salaries to minimize payroll tax exposure. We’ve seen founders try to pay themselves $50,000 while their company earns $800,000—the IRS will reclassify a chunk of those distributions as wages and hit you with back payroll taxes plus penalties. A good rule of thumb is that your salary should be comparable to what you’d pay someone to do your job if you hired externally. For a Miami-based tech CEO, that’s probably in the $150,000 to $250,000 range depending on company size.

There’s also the Qualified Small Business Stock (QSBS) angle to consider. Section 1202 of the tax code lets founders of C-corps exclude up to $10 million (or 10x their basis, whichever is greater) in capital gains when they sell their shares—but only if the company is a C-corp. S-corps don’t qualify for QSBS treatment. If you think there’s a realistic path to an exit where your shares are worth more than a few million dollars, the QSBS exclusion alone can save you more in taxes at exit than you’d save with S-corp pass-through treatment over the entire life of the company.

Our recommendation for most Miami tech startups raising venture capital: incorporate as a Delaware C-corp and register as a foreign corporation in Florida. For bootstrapped companies planning to stay small and distribute profits regularly, an S-corp election often makes more sense—especially in a no-income-tax state like Florida. We run the actual numbers for both scenarios with every client so you’re making this decision based on projections, not guesses. Reach out and we’ll model it for your specific situation.

There’s another wrinkle that comes up constantly with Miami startups hiring remote workers in other states. If your S-corp has employees in California, New York, or any other state with income tax, you may need to file state tax returns in those states and withhold state income tax from those employees’. Paychecks—even though Florida itself doesn’t tax income. This creates multistate filing obligations that add complexity and cost. A C-corp handles this the same way, but the pass-through nature of an S-corp means the owners themselves might have state tax liability in states where the company operates, depending on that state’s rules for nonresident partners and shareholders.

We had a Miami SaaS client last year with developers in California and North Carolina. As an S-corp, the two founders had to file nonresident state returns in California because the company had payroll nexus there. They owed California tax on the portion of income allocated to that state—about $18,000 combined. Had they known that before hiring in California, they might have structured things differently or at least budgeted for the additional tax exposure. That’s why the entity decision isn’t just about federal rates—it’s about your entire operational footprint.

We also see founders overlook the Qualified Business Income (QBI) deduction under Section 199A. If you’re running an S-corp, up to 20% of your qualified business income might be deductible on your personal return—subject to wage and capital limitations at higher income levels. For Miami founders earning between $182,100 and $232,100 (single filers in 2024), the phase-out rules kick in and the math gets complicated. Above the threshold, the deduction is limited to the greater of 50% of W-2 wages or 25% of W-2 wages plus 2.5% of unadjusted basis in qualified property. Getting your salary and distribution mix right can mean thousands of dollars in additional deductions.

The R&D tax credit is one of the most misunderstood tax breaks in the startup world, and pre-revenue companies in Miami’s tech scene leave millions on the table every year because someone told them “you need profits first.” That’s flat-out wrong. The credit under IRC Section 41 is available to any company performing qualified research activities, regardless of whether you’ve earned a single dollar in revenue yet.

Here’s how it works at the federal level. Qualified research expenses (QREs) fall into four buckets: wages paid to employees performing or supervising qualified research, supplies consumed during the research process, contract research expenses (paid to third parties doing research on your behalf, though only 65% of those costs qualify), and certain cloud computing costs tied directly to research activities. For a typical SaaS startup, the bulk of your QREs will be developer salaries and the cloud infrastructure costs (AWS, Azure, GCP) used during product development.

The credit calculation uses the Alternative Simplified Credit (ASC) method, which is what most startups choose because it’s easier to compute and doesn’t require historical data going back to 1984. Under ASC, you take your current-year QREs, subtract 50% of your average QREs from the prior three years, and multiply the result by 14%. If you have no QRE history (because you’re brand new), you use 6% of current-year QREs as the credit amount.

Now here’s the part that matters most for pre-revenue startups: Section 41(h) allows “qualified small businesses”. To apply the R&D credit against payroll taxes instead of income taxes. A qualified small business is one with gross receipts under $5 million for the current year and no gross receipts for any tax year before the five-year period ending with the current year. If you fit that definition—and most early-stage startups do—you can offset up to $500,000 per year in employer-side payroll taxes (Social Security taxes, specifically). That cap increased from $250,000 to $500,000 for tax years beginning after December 31, 2022, thanks to the Inflation Reduction Act.

To put real numbers on this: say your Miami SaaS startup has three developers earning $150,000 each, and 70% of their time goes toward qualified research. That’s $315,000 in wage-based QREs. At the 6% first-year rate, your credit would be roughly $18,900. At the full 14% ASC rate (once you have three years of history), you’re looking at credits in the $30,000 to $44,000 range depending on your year-over-year QRE growth. Applied against payroll taxes, that’s cash in your bank account every quarter.

The documentation piece is where most startups trip up. The IRS wants to see contemporaneous records—meaning you tracked activities as they happened, not reconstructed them at year-end. At minimum, you need project descriptions documenting the technological uncertainty you were trying to resolve, time tracking showing which employees spent how many hours on qualified activities, and records of supplies and cloud costs tied to specific research projects. Tools like Jira, GitHub commit histories, and sprint planning docs can serve as excellent supporting evidence if they’re organized properly.

There’s also a Section 174 interaction you need to know about. Since 2022, R&D expenditures must be capitalized and amortized over five years (fifteen years for foreign research) rather than deducted immediately. This doesn’t eliminate the R&D credit—they’re separate provisions—but it does affect your overall tax picture because you can’t just expense those development costs in the year you incur them anymore. The amortization deduction still provides some tax benefit, but the cash flow impact is spread over five years instead of hitting all at once.

For Florida-based startups, there’s no state R&D credit to piggyback on (unlike California, which offers its own credit), but the absence of state income tax means your federal credit isn’t diluted by state tax obligations. Every dollar of federal R&D credit flows straight to your bottom line. We’ve helped Miami startups claim cumulative credits exceeding $200,000 over their first four years—money that funded additional hires and extended their runway by months. If your CPA hasn’t brought up the R&D credit, or told you it doesn’t apply to pre-revenue companies, get in touch with us for a second opinion.

Something else worth flagging for Miami startups: the interaction between the R&D credit and your fundraising timeline matters more than most founders realize. If you’re burning cash on development and claiming the payroll tax offset, that credit reduces your cash burn rate and extends your runway. Extending your runway by even a few months can mean the difference between raising your next round from a position of strength versus desperation. We’ve had clients where the R&D credit literally gave them an extra quarter of runway, which let them hit a key product milestone before going back to investors.

The documentation burden is real, but it’s manageable if you build it into your workflow from day one. Don’t wait until tax season to reconstruct which developers worked on what. Set up a simple time-tracking system—even a spreadsheet updated weekly—that logs each employee’s hours by project, distinguishing between qualified research activities (developing new features, experimenting with new algorithms, building prototypes) and non-qualifying work (bug fixes for existing code, routine maintenance, customer support). Your GitHub commit history and Jira boards can serve as supplementary evidence, but they’re not a substitute for a proper contemporaneous log.

One final note on audit risk: the IRS has increased scrutiny of R&D credit claims in recent years, particularly from small companies. Having a well-documented study prepared by a qualified tax professional significantly reduces your audit risk and ensures you can defend every dollar if the IRS asks questions. We prepare full R&D credit studies for our tech clients that include project narratives, employee interviews, expense breakdowns, and nexus-to-uncertainty documentation—the whole package the IRS expects to see.

Bottom line: the R&D credit is free money that the federal government is handing to startups doing exactly what you’re already doing—building new technology. If you’re not claiming it, you’re subsidizing your competitors who are. The application process takes about two to three weeks when you work with a firm that specializes in it, and the payoff is immediate.

This question keeps more SaaS founders up at night than almost anything else on the tax side, and for good reason—the rules are a tangled mess that varies state by state with very little federal guidance to smooth things out. The short answer is: it depends entirely on where your customers are located and what each state considers “taxable.”

Let’s start with Florida, since that’s home base for Miami tech companies. As of 2025, Florida does impose sales tax on SaaS products. The state treats remotely accessed software as taxable, which means if you’re selling a subscription-based software product to customers in Florida, you need to collect and remit Florida’s 6% state sales tax plus any applicable local discretionary surtax (which ranges from 0.5% to 2.5% depending on the county). Miami-Dade County, for example, adds a 1% surtax, bringing the effective rate to 7% on the first $5,000 of each transaction.

But here’s where it gets complicated. Not every state treats SaaS the same way. Texas taxes SaaS. New York taxes SaaS. California does not tax SaaS (they consider it a non-taxable service). Washington taxes SaaS under its B&O tax framework rather than traditional sales tax. Some states tax SaaS only when delivered to business customers, not consumers. Others tax it regardless. And a handful of states—like Oregon, Montana, New Hampshire, and Delaware—don’t have a general sales tax at all, so the question is moot for customers in those states.

The trigger for when you need to start collecting is called “nexus.” Before the Supreme Court’s 2018 South Dakota v. Wayfair decision, you generally needed a physical presence in a state—an office, an employee, inventory—to have sales tax obligations there. Wayfair changed everything by establishing that economic activity alone can create nexus. Most states have adopted thresholds around $100,000 in sales or 200 transactions into the state during the current or previous calendar year. Once you cross that threshold, you’re required to register and remit sales tax in that state.

For a fast-growing SaaS company, this creates a cascading compliance burden. You might start the year with nexus in three states and end it with nexus in fifteen. Each state has its own registration process, its own filing frequency (monthly, quarterly, or annually depending on your volume), its own rules about what’s taxable, and its own penalties for late filing. Miss a registration deadline in one state and you could face back taxes and penalties going back to the date you first established nexus—even if you had no idea you’d crossed the threshold.

The practical approach most of our Miami SaaS clients take is threefold. First, use a sales tax automation platform like Avalara, TaxJar, or Anrok to track nexus thresholds across all states in real time. These tools integrate with your billing system (Stripe, Chargebee, etc.) and automatically calculate and remit the correct amount of tax for each transaction. The cost runs between $200 and $500 per month for most startups, which is a fraction of what you’d pay for the manual compliance work.

Second, do a nexus study at least once a year. This is a formal analysis of where you have customers, how much revenue you’re generating in each state, and whether you’ve crossed any new thresholds. We run these for our clients as part of their annual tax planning engagement, and it’s not unusual to discover two or three new states where registration is required.

Third—and this is the one founders always push back on—register proactively in states where you’re approaching the threshold, rather than waiting until you’ve already crossed it and scrambling to catch up. Voluntary disclosure agreements (VDAs) can help if you’ve been collecting in a state without being registered, but they’re not available everywhere and they don’t eliminate all penalties.

One more thing worth mentioning: if you’re selling to enterprise customers, they may provide you with resale certificates or exemption certificates. When a customer provides a valid exemption certificate, you don’t need to collect sales tax on that transaction. But you do need to keep that certificate on file—if you get audited and can’t produce it, the state will treat the sale as taxable and you’ll owe the tax out of your own pocket. We help our clients set up systems to collect and store these certificates so there are no surprises during an audit. Let us know if you want a nexus review—most founders are surprised by what we find.

There’s also the question of how to handle sales tax when you’re offering a freemium product or a free trial. Most states only impose sales tax on paid transactions, so free tiers don’t trigger collection obligations. But if your free tier includes features that would otherwise be taxable, some states could argue the entire product is taxable and the “free”. Tier is just a marketing tool. This is an edge case, but it’s come up in a few state audits. The safest approach is to clearly separate your free and paid offerings in your terms of service and billing system so there’s no ambiguity about which transactions involve consideration.

Another common trap for SaaS companies is the bundling issue. If you sell software bundled with non-taxable services—say, a subscription that includes both SaaS access and consulting hours—the entire bundle might be treated as taxable in some states unless you separately state the prices for each component on the invoice. This is called the “true object”. Test in sales tax law, and it varies by state. Some states look at what the customer’s primary purpose is in buying the bundle. Others just tax everything if any taxable component is present and not separately stated. We structure our clients’. Invoicing to break out taxable and non-taxable components wherever possible, which reduces the overall sales tax burden and gives you a defensible position if audited.

If you’re already collecting sales tax and want to make sure you’re doing it right—or if you’ve been ignoring the issue and want to get compliant before it becomes a problem—reach out to our team. We do full nexus reviews and can get you registered and compliant in all required states within a few weeks.

If only it were that simple. California has the most aggressive tax authority in the country for claiming you still owe them money after you’ve moved, and the Franchise Tax Board (FTB) has an entire audit unit dedicated to residency cases. Thousands of tech workers have made the move from the Bay Area to Miami over the past few years, and the FTB has taken notice. They’re actively auditing people who claim to have changed their domicile to Florida, looking for any evidence that the move wasn’t genuine or complete.

The first thing you need to understand is the difference between domicile and residency for California tax purposes. Your domicile is the place you consider your permanent home—the place you intend to return to whenever you leave. California considers you a resident for tax purposes if you’re domiciled in California, OR if you’re in California for other than a temporary or transitory purpose, OR if you spend more than nine months in the state during the tax year (there’s a statutory presumption of residency at the nine-month mark). You need to genuinely change your domicile to Florida, which means more than just signing a lease in Miami and updating your driver’s license.

Here’s what the FTB looks at during a residency audit, and they go deep. They examine where you actually sleep most nights (cell phone records, credit card transactions, flight records). They look at where your closest social and family ties are—spouse, kids, friends, religious community. They check where you’re registered to vote, where your vehicles are registered, where your doctors and dentists are, where your pets are registered, where your bank accounts are domiciled, where your estate planning documents name as your state of residence, where you claim your homeowner’s exemption, and where your professional licenses are held. They even look at where you get your hair cut. No single factor is determinative, but the FTB builds a mosaic.

The financial stakes here are enormous. California’s top marginal rate is 13.3%, and there’s an additional 1% mental health services surcharge on income over $1 million. If you’re a tech founder with $2 million in income, the difference between California residency and Florida residency is roughly $286,000 in state taxes per year. Multiply that by three years of an open audit period, add interest and penalties, and you could be looking at a seven-figure assessment.

The safest approach is what we call a “clean break”. Strategy. On your departure date, you should have already secured a Florida residence (purchased or leased), transferred your driver’s license to Florida, registered your vehicles in Florida, updated your voter registration, moved your bank accounts to Florida-based branches, changed your mailing address with every financial institution and government agency, updated your estate planning documents to reflect Florida domicile, enrolled your kids in Florida schools if applicable, and joined a Florida-based gym, religious institution, or social club. The more ties you sever with California and establish in Florida on day one, the stronger your position if the FTB comes knocking.

But even a clean break doesn’t fully protect you if you keep going back to California for extended periods. The FTB uses a “closer connection”. Test, and if you’re spending 100+ days a year in California—maybe visiting family, attending board meetings, or working from a co-working space in SF—they can argue your real home never changed. We advise clients to keep their California days under 60 per year if possible, and to carefully document every day they spend in each state. A contemporaneous calendar or travel log is your best evidence in an audit.

There’s also the issue of California-source income. Even after you’ve successfully established Florida domicile, California can still tax income that’s “sourced”. To the state. If you’re a partner in a California LLC or have California-based clients, a portion of your income may remain taxable by California regardless of where you live. Stock options and RSUs from a California employer are particularly tricky—California claims the right to tax the portion of the vesting period during which you were a California resident, even if you exercise or sell the shares years after moving to Florida.

We’ve guided dozens of tech founders through this exact transition, and the ones who do it right save hundreds of thousands of dollars. The ones who do it carelessly end up in multi-year FTB audits that cost $50,000+ in legal and accounting fees alone—on top of whatever back taxes and penalties the FTB assesses. Schedule a residency planning session before you make the move, not after. The planning you do in the 90 days before your departure date is worth more than anything your accountant can do after the fact.

We should also mention the “safe harbor”. Approach that some tax advisors use for California departure situations. If you leave California before the end of the tax year, you file a part-year resident return for the portion of the year you lived in California and a nonresident return (or no return at all, if you have no California-source income) for the remainder. The part-year return taxes your worldwide income during the California-resident period and your California-source income during the nonresident period. Picking the right departure date—ideally before a large stock vesting event or bonus payment—can save you tens or even hundreds of thousands of dollars.

For RSUs and stock options specifically, California uses an allocation formula based on the number of working days you spent in California during the vesting period divided by total working days. So if you had a four-year RSU vest and spent two of those years in California and two in Florida, roughly half the gain would be taxable by California. This creates a declining California tax obligation as time passes—each new vest has a smaller California allocation than the last. But you need to track your California working days precisely for each grant, because the FTB absolutely will ask for this calculation during an audit.

We’ve built detailed relocation checklists for tech founders making this move—reach out and we’ll walk you through every step so nothing slips through the cracks.

Miami has built a reputation as a tech-friendly tax haven over the past several years, and it’s not just hype—the numbers genuinely back it up. Between Florida’s zero state income tax, relatively low property taxes compared to coastal California and New York, and a growing pool of tech talent, the financial case for basing a startup in Miami is strong. But there are also hidden costs and traps that founders don’t always account for when they make the move.

The headline advantage is obvious: Florida has no personal income tax. For a founder pulling $500,000 a year out of their company—whether as salary, distributions, or capital gains—that’s roughly $66,500 per year saved compared to California (at 13.3%) and about $44,000 per year compared to New York (at 8.82% state plus up to 3.876% New York City tax for city residents). Over a five-year period, those savings alone can fund an additional full-time engineer or a meaningful marketing budget.

Florida also has no corporate income tax for pass-through entities (S-corps, LLCs, partnerships). C-corporations do pay a Florida corporate income tax, but the rate is only 5.5% on net income over $50,000—and there’s a $50,000 exemption that eliminates the tax entirely for many early-stage companies. Compare that to California’s 8.84% corporate tax rate with an $800 minimum franchise tax, or New York’s complex corporate tax structure with rates ranging from 6.5% to 7.25% depending on the calculation method.

The property tax situation in Miami-Dade County is moderate. The effective property tax rate hovers around 1.0% to 1.1% of assessed value, which is higher than what you’d pay in some parts of Texas but significantly lower than New Jersey (2.2%+ average) or Westchester County, NY. If you’re buying a home in Miami, the homestead exemption knocks $50,000 off your assessed value, and the “Save Our Homes”. Cap limits annual assessment increases to 3% or the CPI, whichever is lower. That’s a significant long-term benefit for founders who plan to stay.

One tax founders often overlook is the Florida commercial rent tax. Florida is one of the only states that imposes sales tax on commercial lease payments. The current rate is 2% (it’s been declining from a high of 6%), but on top of the standard 6% state sales tax, tenants in Miami can end up paying an effective 8% tax on their office rent. For a startup leasing 3,000 square feet at $50 per square foot, that’s an extra $12,000 per year in rent taxes. It’s not a dealbreaker, but it catches people off guard.

Miami also participates in various local incentive programs that tech companies can tap into. The Miami-Dade Signal Council offers targeted tax incentives for companies creating high-wage jobs in the county. The state’s Qualified Target Industry (QTI) Tax Refund program provides refunds of up to $3,000 per new job created ($6,000 in enterprise zones), and companies in designated Opportunity Zones can defer and reduce capital gains taxes on qualified investments. Several neighborhoods in Miami—including parts of Overtown, Liberty City, and Little Haiti—are in Opportunity Zones.

From a talent perspective, Florida’s lack of state income tax is a recruiting advantage. When you offer a developer $150,000 in Miami versus $150,000 in San Francisco, the Miami offer is effectively worth about $20,000 more in take-home pay. That differential lets Miami startups compete on compensation without necessarily matching Bay Area salary levels dollar-for-dollar. And with remote work normalizing post-pandemic, many tech workers who moved to Florida during 2020-2021 have stayed put, creating a deeper local talent pool than Miami had five years ago.

There’s also a practical quality-of-life calculation that affects retention and productivity. Cost of living in Miami is lower than San Francisco, New York, or Seattle for most expense categories (though housing costs have risen sharply). Lower living costs mean your employees’. Salaries stretch further, which reduces pressure for raises and helps with retention. We’ve seen clients reduce their annual payroll growth rate by 2-3% simply by being in a lower-cost market.

The bottom line: Miami’s tax environment gives tech startups a meaningful financial edge, particularly for pass-through entities and for founders with high personal income. The savings compound over time and can meaningfully extend your runway or accelerate your path to profitability. But you need to plan around the commercial rent tax, understand the Florida corporate income tax if you’re a C-corp, and make sure your multistate tax obligations are handled correctly. Check out our guide on LLC taxation for more on how entity structure interacts with Florida’s tax rules.

Worth noting that Miami’s tax advantages extend beyond the startup itself to the founder’s personal wealth-building strategy. Florida has one of the strongest homestead protection laws in the country—your primary residence is fully protected from creditors under the state constitution, with no cap on value. That means a tech founder who buys a $3 million home in Miami has that entire asset shielded from business creditors, judgment creditors, and even bankruptcy proceedings (subject to a 1,215-day residency requirement for bankruptcy protection). Compare that to California, where the homestead exemption caps at $300,000 to $600,000 depending on circumstances. For founders in high-risk industries or those personally guaranteeing business debts, that asset protection alone is worth the move.

Florida also has no estate tax, which matters for long-term wealth planning. The federal estate tax exemption is currently at $13.61 million per individual ($27.22 million for married couples), but that’s set to revert to roughly half that amount after 2025 unless Congress acts. Even with the current high exemption, founders of successful tech companies can easily exceed those thresholds, and states like New York impose their own estate tax with exemptions as low as $6.94 million. Dying as a Florida resident means your estate pays only federal estate tax—no state-level bite on top.

If you’re weighing the Miami move and want someone to model the full tax picture—personal income taxes, corporate taxes, sales tax obligations, and estate planning implications—let us run the numbers for you. We build complete comparison models that account for all the variables, not just the headline state income tax rate.