Head of Tax & Accounting
Aparna DevallaCPA
Aparna is a Certified Public Accountant who leads the tax and accounting practice at StartupCFO. Her work spans GAAP-compliant monthly close, multi-state sales and income tax compliance, R&D tax credit studies, and Delaware franchise tax filings. Aparna has prepared and defended financial statements through venture diligence, audit, and multi-state tax audits for startups from pre-seed through Series B.
Areas of expertise
- Multi-state sales tax (post-Wayfair) compliance
- R&D tax credit studies and Form 6765 preparation
- Delaware franchise tax and corporate returns
- ASC 606 revenue recognition for SaaS
- Audit-readiness and financial diligence support
Articles by Aparna Devalla
18 articles published.
Austin Startup Tax Deadlines 2027: Texas Franchise Tax Calendar
Texas has no personal or corporate income tax, but Austin startup taxes are not zero. Here is the 2027 calendar for founders: the May franchise tax report, the Public Information Report, sales tax on SaaS, the new refundable R&D credit, Travis County property renditions, and the federal and Delaware dates layered on top.
Tax & ComplianceBoston Startup Tax Deadlines 2027: Massachusetts Calendar
Boston startup taxes run mostly through the state: the Massachusetts corporate excise with its $456 minimum, sales tax on SaaS, PFML contributions, and the 4% millionaire surtax that hits founders at exit. Here is the full 2027 calendar for a Delaware C-corp in Massachusetts.
Tax & ComplianceDecember 2026 Startup Tax Deadlines and Year-End Checklist
The December startup tax deadlines for 2026, plus the year-end checklist that sets up a clean January: the December 15 corporate estimate, W-2 and W-9 prep under the new $2,000 1099 threshold, accrual cleanup, 409A timing and Delaware prep.
Tax & ComplianceLos Angeles Startup Tax Deadlines 2027: City and California Calendar
Los Angeles startup taxes come in three layers: the City of LA business tax renewal, the LA County 571-L property statement, and California franchise and payroll tax. Here is the 2027 calendar, the $100,000 small business exemption you lose by filing late, and how Santa Monica and Culver City differ.
Tax & ComplianceNew York City Startup Tax Deadlines 2027: State and City Calendar
New York City startup taxes stack three layers: the New York State franchise tax, the NYC Business Corporation Tax, and payroll levies like the MCTMT. Here is the full 2027 calendar for a Delaware C-corp with a New York office, with weekend shifts applied.
Tax & ComplianceSeattle Startup Tax Deadlines 2027: Washington B&O Calendar
Washington has no corporate income tax, but Seattle startup taxes start with the first dollar of revenue. Here is the 2027 calendar for founders: Washington B&O tax, sales tax on SaaS and newly taxed services, Seattle's business license tax and payroll expense tax, Paid Leave and WA Cares premiums, and the federal and Delaware dates on top.
Tax & Compliance2027 Startup Tax Deadlines: The Complete Calendar for Venture-Backed Companies
Startup tax deadlines 2027, month by month: every federal, Delaware and payroll date a venture-backed C-corp needs to hit, with weekend shifts, who files, penalty amounts, and the new $2,000 threshold for 1099s.
TaxThe Delaware C-Corp Startup Tax Guide: Every Filing You Owe
Every tax and filing a venture-backed Delaware C-corp owes: Delaware franchise tax, Form 1120, quarterly estimates, state registrations, payroll and 1099 filings, sales tax, and the credits and elections that save real money.
TaxThe Foreign Founder's Guide to US Startup Taxes: Forms 5472, 5471, FBAR, and the Penalties That Actually Hit
Foreign founders of US startups face fixed-dollar information reporting penalties that ignore income: $25,000 for a missed Form 5472, $10,000 for Form 5471, FBAR exposure for foreign accounts. Here is every form, deadline, and penalty, and how to stay clean.
TaxForm 5472 for Startups: Who Files, What Counts, and the $25,000 Penalty
Form 5472 carries a $25,000 penalty that ignores income entirely. Here is who must file, what a reportable transaction is, how the pro forma 1120 works for foreign-owned LLCs, and how to fix a missed year.
TaxHow to File an 83(b) Election: Form 15620, E-Filing, and the 30-Day Clock
The 83(b) election is twenty minutes of paperwork with a 30-day fuse. Here is who needs to file, the tax math behind the decision, and the step-by-step mechanics: Form 15620, IRS e-filing, certified mail, and the records to keep forever.
TaxMissed Your 83(b) Election Deadline? What Happens and What You Can Actually Do
The 30-day 83(b) deadline has no extension and no late filing. Here is how to confirm whether you actually missed it, what it costs if you did, and the remediation paths that genuinely exist.
TaxSan Francisco Startup Tax Deadlines and Obligations (2026)
San Francisco moved its business registration deadline, rewrote its gross receipts tax under Prop M, and now exempts most sub $5 million startups from city tax. Here is the full 2026 calendar for SF founders, layered on top of the federal and California dates.
EquityQSBS Explained: A Founder's Guide to the Section 1202 Tax Exclusion (2026)
Qualified Small Business Stock can let founders and early employees exclude up to $15 million of gain from federal tax. Here is how Section 1202 works, what the One Big Beautiful Bill Act changed, and the mistakes that quietly disqualify your stock.
CompensationHow to Pay Yourself as a Startup Founder: Salary, Payroll Setup, and Tax Structure
Founder W-2 pay: $85K to $165K at seed, $140K to $215K at Series A. The fastest Delaware C-corp payroll setup, Gusto vs Rippling vs Justworks, and health insurance.
Tax & Compliance2026 Startup Tax Deadlines: The Complete Calendar for Venture-Backed Companies
Every federal, state, and Delaware deadline a venture-backed startup needs to hit in 2026, with penalty amounts, who files what, and the specific gotchas founders miss.
TaxTax Planning Strategies Under the One Big Beautiful Bill Act
A practical guide to tax planning under the enacted OBBBA: permanent deductions, restored expensing, and the windows that have already closed.
TaxThe One Big Beautiful Bill Act: Tax Benefits for Businesses and Individuals
The OBBBA introduces sweeping changes to the U.S. tax code: business deductions, individual rates, and retirement savings. What matters for startups.
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