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Industries · Software startups · Private equity

Software startups with private equity investors: the tax issues that come with the capital.

A private equity investment brings new reporting deadlines, audit requirements and tax questions, from how development costs are deducted to whether founders keep QSBS treatment at exit. We work with founders, CFOs and fund deal teams to get the structure and the numbers right.

Forms & standards
IRC § 174A (domestic R&E expensing)IRC § 41 (research credit)IRC § 1202 (QSBS)IRC § 382 (NOL limitation)IRC § 409A and § 83(b)IRC § 280G (golden parachutes)Rev. Proc. 2011-29 (success-based fees)

Serving United States, Virginia, Washington, DC, Maryland.

What we handle

The tax issues PE-backed software companies face

Structure comes first. Funds often invest through a C corporation or a holding LLC with a corporate blocker, and the choice drives everything else: whether founders' shares qualify for the section 1202 QSBS exclusion, how management incentive units or profits interests are taxed, and whether a later sale is a stock or asset deal. Converting an LLC to a C corporation before the investment can start the QSBS clock, and for stock issued after July 4, 2025 the exclusion phases in at 50%, 75% and 100% after three, four and five years, up to $15 million per shareholder per company.

Software development is research for tax purposes. Starting in 2025, domestic research and development costs, including developer salaries, can again be deducted immediately under section 174A, while work performed by offshore teams must still be amortized over 15 years. Smaller companies may be able to recover deductions from 2022 to 2024 through time-limited elections. The research credit adds a dollar-for-dollar benefit, and an early-stage company with under $5 million of receipts can use up to $500,000 a year against payroll taxes.

Each financing round matters for losses. A change of more than 50% in ownership by 5% shareholders over three years triggers section 382, which caps how much of the company's net operating losses can be used each year, so loss models should be updated after every round. Other recurring issues: 409A valuations for option grants and 83(b) elections within 30 days for restricted founder stock; sales tax on SaaS, which some states tax and others do not; payroll and income tax nexus created by remote employees in many states; transfer pricing and foreign reporting for development teams abroad; capitalizing deal costs, with the 70% safe harbor for success-based fees; and section 280G golden parachute rules, which private companies can often address through a 75% shareholder vote.

Speak with an advisor
  • Entity and investment structureC corporation, holding LLC and blocker structures, conversions and rollover equity.
  • Section 174A and R&D creditsDeveloper cost tracking, current-year expensing, prior-year recovery elections and payroll tax offsets.
  • QSBS planningEligibility reviews, documentation and stacking for founders and early investors.
  • Equity compensation409A valuations, ISOs and NSOs, 83(b) elections and profits interests for management.
  • SaaS sales tax and multi-stateTaxability by state, economic nexus, registrations and voluntary disclosures.
  • Audits and investor reportingASC 606 revenue recognition, audited statements for the fund and quality of earnings at exit.

Where we help

When each issue usually shows up

Before the round

Getting investment-ready

Entity conversion, clean books, QSBS documentation, cap table and option plan review.

After closing

Living with a PE investor

Monthly reporting, annual audits, Section 382 tracking, R&D documentation and board-ready tax provisions.

Growth

Scaling across states and countries

Sales tax registrations, remote payroll, offshore development entities and transfer pricing.

Exit

Selling or recapitalizing

Diligence clean-up, QSBS at sale, 280G votes, deal cost deductions and earnout planning.

Our approach

How the engagement runs.

Review

A senior advisor reviews your facts and documents.

Plan

Scope, fees and timeline in an engagement letter.

File

Returns, elections and forms prepared and reviewed.

Support

IRS contact and planning all year.

Questions

Frequently asked

If your question isn't here, call (703) 880-8412 and you'll reach a person.

Does a PE investment end our QSBS eligibility?

Not by itself. QSBS depends on the company being a qualified C corporation with gross assets under the limit when the stock is issued, and on how and when each shareholder acquired the stock. Redemptions around the investment and the use of LLC structures can cause problems, so review eligibility before closing.

Can we deduct our developers' salaries immediately?

For domestic software development performed in tax years beginning after 2024, generally yes under section 174A. Costs of development performed outside the US are still amortized over 15 years, so offshore teams change the result.

What happens to our net operating losses after the investment?

If the investment and earlier rounds add up to more than a 50% ownership change, section 382 limits annual use of pre-change losses to roughly the company's value times a federal rate. The losses are not lost, but they may be used more slowly.

Is our SaaS product subject to sales tax?

It depends on the state. Some states tax SaaS as software or a digital service, many do not, and economic nexus thresholds apply once sales into a state pass set levels. A taxability matrix by state is usually the first step.

Our PE investor requires an audit. Can you do it?

Yes. As a PCAOB-registered firm we perform financial statement audits under GAAS, including ASC 606 revenue recognition for subscription revenue, and can coordinate with the fund's reporting timeline.

Latest updates

IRS & federal tax

All IRS & federal tax updates
Nov 5, 2026IRS & federal tax

IRS releases 2027 inflation adjustments (Rev. Proc. 2026-35)

For 2027 the joint-return standard deduction rises to $33,200, the estate tax basic exclusion to $15,480,000, the annual gift exclusion to $20,000 and the Section 179 expensing limit to $2,640,000. Our advisors recommend revisiting year-end gifting and equipment purchase plans with these figures in mind.

Source: IRS (IR-2026-133)

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