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Foreign subsidiaries, nexus in a dozen states, an acquisition closing mid-⁠year. We file federal and state returns in all 50 states, and make the judgment calls.

5 stars

#1 Most-Rated Firmon Sam's List, YC Deals

Trusted by 1,100+ teams

  • Cursor
  • Cognition
  • Ramp
  • PI
  • modal
  • Chai discovery
  • Rox
  • Braintrust
  • Pika
  • AfterQuery
  • Every
  • Instinct

The whole corporate tax stack.

  • Form 1120 & state returns

    Federal and state returns, with the extra IRS reporting that comes with foreign subsidiaries or a foreign parent.

  • Delaware franchise tax

    Annual report and franchise tax by March 1, refigured when Delaware's default method overstates the bill.

  • ASC 740 provisions

    Year-⁠end and quarterly provisions, with the valuation allowance and uncertain positions included.

  • Nexus & apportionment

    Where your people and sales create filings, and how much of your income each state gets to tax.

  • Information returns

    1099s, option exercise filings, and the other forms that come with paying people.

  • Executive returns, too

    The CEO's and executive team's 1040s, from people who already know the company.

Four steps, then it's off your plate.

  1. Scope the engagement

    We review your entities, the states you file in, and last year's return before we start.

  2. Connect your systems

    Access to your books, payroll, and cap table, so we pull what we need instead of asking.

  3. We prepare everything

    Every return, plus the provision workpapers your auditors will ask for.

  4. You review, we e-⁠file

    Approve the returns in one place, and we e-⁠file in every state where you file.
  1. CC

    C.J. Cregg10:02 AM

    Board asked if we're set for the October 15 deadline. Are we?

  2. Ankit BansalRivet10:20 AM

    We are. Your 1120 and 14 state returns are ready for review, with Form 5471 for the UK subsidiary. Approve today and we e-⁠file tomorrow.

  3. CC

    C.J. Cregg10:24 AM

    Approved. Thank you, that's a weight off.

Signs your corporate taxes got complicated.

  • You signed a term sheet
  • Your auditor flagged a tax issue
  • You have a foreign bank account
  • You redeemed founder shares
  • Your revenue crossed $1M
  • You moved to accrual books
  • You switched accounting systems
  • Your finance lead just left
  • You claimed the ERC
  • You received a government grant
  • You started granting RSUs
  • You bill annual plans upfront
  • You have a non-calendar year end
  • You pay late penalties each year
  • You missed a filing deadline
  • A state rejected your return
  • A state billed franchise tax
  • You got an IRS notice
  • You owe estimated tax now
  • You're winding down an entity
  • You have a holding company
  • You spun out a subsidiary
  • You sold a product line
  • Investors ask about QSBS
  • Your NOLs face a 382 limit
  • You took on venture debt
  • Your SAFEs converted
  • You moved your HQ to a new state
  • You opened an office abroad
  • You bill a foreign affiliate
  • Your engineers are offshore
  • You've never claimed R&D credits
  • You capitalized R&D in 2022–2024
  • A state sent a nexus letter
  • You have unfiled state returns
  • You've never filed a Form 1120
  • You're preparing for an IPO
  • You turned profitable this year
  • You converted from an LLC
  • You pay contractors abroad
  • Your last firm missed a deadline
  • You're preparing to be acquired
  • Employees exercised ISOs
  • Your Delaware bill looks wrong
  • You acquired a company
  • You have staff in several states
  • Your parent company is foreign
  • You have a foreign subsidiary
  • Your auditors need a provision
  • You raised a priced round

Popular with startups & AI companies, VC & investment funds, crypto & fintech companies, founders & executives, and established businesses.

Clients, in their own words.

  • Cursor
    “Responsiveness and reliability! Most accountants don’t answer your questions for weeks, and try to avoid being helpful to save time. Rivet felt like the opposite. They went above and beyond.”
    Vibhav JoopelliVP of Finance at Cursor
  • Ramp
    “It’s been awesome seeing Rivet serve many of the fastest growing companies in the world.”
    Eric GlymanCo-⁠Founder, CEO at Ramp
  • XYZ
    “The perfect example of customer-⁠obsessed, deep domain experts who are building delightful products with AI.”
    Chauncey HamiltonPartner at XYZ
  • Ranger
    “Rivet is the only tax firm Ranger ever plans to use.”
    Josh IpFounder at Ranger
  • Fair Square
    “Rivet is 100x better than any tax advisor we've used before.”
    Daniel PetkevichFounder at Fair Square

See why industry-⁠leading businesses choose Rivet.

  • Flat fee, no surprises

    One annual fee, agreed before we start. No hourly meter.

  • Planning, not just filing

    We look ahead while we file, so big decisions get made before they get expensive.

  • Big Four-⁠trained accountants

    A team from the Big Four and top national firms reviews every return.

  • Agents do the legwork

    Software we built runs the busywork, so our accountants spend their time on judgment calls.

  • Every filing in-⁠house

    Our own team prepares and files your federal and state returns, in all 50 states.

  • Tax only, or tax plus bookkeeping

    Your choice. Keep your books and upgrade your tax, or hand us both.

Frequently asked questions

Can't find what you're looking for? Talk to our team.

Often paired with corporate tax prep.

Don't let complexity slow you down.

One price for the whole year. No hourly billing.
Got an IRS notice or a deadline coming up? Book an urgent call