Accounting software for startups

Startup accounting software.
Without the busywork.

Accounting software for startups that does the work for you. Zeni's AI Accountant keeps your books current, and our finance and tax team closes every month and keeps your startup tax-ready.
Bookkeeping, tax and CFO support · Every AI call explained
A startup founder standing in his small studio office
Built for founders

Founders shouldn't spend their Sundays on the books.

Between fundraising, hiring and shipping, bookkeeping and tax deadlines are the first things to slip. Wander Maps' founder spent less than an hour on its R&D tax filing with Zeni and received $60,000 in credits, extending runway by three months.¹

$60K
in R&D tax credits received by Wander Maps
3 months
of runway those credits added
<1 hr
of the founder's time spent on the R&D tax filing
$1.25M
raised by Campfire with Zeni's forecast and investor reports
We set it up. We run the AI agents.

Zeni sets everything up for your startup, and our team manages the AI agents and reviews the work, so founders get bookkeeping, tax and CFO support without hiring a finance team. With other accounting software for startups, the work is still yours. With Zeni, it's ours.

✓ Set up by Zeni
✓ AI agents managed by our team
✓ Works out of the box
Grid icon representing multiple client companies

Bookkeeping on autopilot

Transactions categorized, receipts matched and accounts reconciled as activity happens, so the books never pile up.

Activity icon representing drafted close work

Startup taxes, handled

Tax plans cover federal and state income tax filing, with add-ons for Delaware franchise tax and R&D credits.

Eye icon representing review and approval

Investor-ready financials

Real-time P&L, balance sheet and cash flow, ready for funding rounds, board decks and due diligence.

Trending-up icon representing client advisory

CFO guidance as you scale

Ask the AI CFO about burn and runway any day, and add a fractional CFO for fundraising and budgeting.

Your startup's new teammates

An AI Accountant for the books.
An AI CFO for the answers.

The AI Accountant keeps your books current all month. The AI CFO turns them into answers.

AI Accountant

Codes every rent payment, SaaS tool and payroll run with its reasoning attached, routes low-confidence calls to reviewers, and reconciles bank and card accounts before month-end.

AI CFO

Answers questions on burn, runway and spend from live books, shows how it reasoned, and models scenarios like cutting software spend.

How it works

Connect your accounts. Get closed books.

Zeni's AI and finance team do the bookkeeping in between. You review the numbers and ask the questions.

1

Connect your accounts: link your bank accounts, cards, payroll and billing tools. Your Zeni team handles setup with you.

2

The AI Accountant works the month: it categorizes transactions, matches receipts and reconciles accounts as activity happens.

3

Your Zeni team closes and you review: we close the month, keep the books tax-ready, and deliver the reports investors expect.

A startup cofounder reviewing bookkeeping on a laptop in a coworking spaceClose work drafted by AI
Zeni transaction card showing a category assigned by AI
Startup accounting

What is startup accounting software?

Startup accounting software keeps a young company's books, financial reports and taxes in order while founders focus on growth. Most tools still leave the work to you. Zeni's AI Accountant codes and reconciles activity as it lands, and our finance team closes the month, so the books stop competing with the product for your time.

Your standards

Every number comes with its reasoning.

Each AI suggestion arrives with its reasoning and confidence, so you and your Zeni team can see why a WeWork payment or AWS bill landed where it did. Approval rules enforce separation of duties, and nothing changes in a closed period.

Built for review
"Show reason" on every AI categorization
Change history on every transaction
Journal entry schedules wait for approval
Created entries can be reverted
Submitters can never approve their own work
Two startup founders meeting with a finance advisor before a funding roundAI CFO · answers from live books
Advisory

Investor-ready numbers, any day of the month.

Zeni's AI CFO answers questions on burn, runway, margins and vendor spend from your live books, shows how every metric was calculated, and builds a 13-week cash forecast,² so your next funding conversation starts from numbers you trust.

From spreadsheets to real-time books

More than accounting software for startups.

Receipts chased by email
→
Receipts matched to transactions
Books caught up before each raise
→
Books closed every month
Tax deadlines tracked by the founder
→
Filings handled by Zeni's tax team
Burn rebuilt for every investor update
→
Burn and runway from live books

Zeni connects to your bank accounts, cards, payroll and billing tools. The AI Accountant keeps the books current, your Zeni team closes each month and handles your taxes, and the AI CFO answers from those same books.

Meet the AI Accountant →
Inside the close

Your month-end close, in one workspace.

Zeni Transactions screen with AI-suggested categories pending reviewThought process on every AI call
TRANSACTIONS

Coded, with the reasoning attached.

Every rent payment, SaaS tool and contractor bill gets a category, class and vendor, plus an explanation of how the AI decided.

Explore transactions →
Zeni Journal Entries screen with AI-created schedules pending reviewPrepaid schedule drafted, waiting on your approval
JE SCHEDULES

Schedules that post themselves.

Prepaid software, insurance and accrual schedules are built and maintained automatically, and every entry waits for approval before it posts.

Explore month-end close →
Zeni Receipts screen listing transactions missing receiptsReceipt matched to its charge, on the record
RECEIPTS

Never chase a receipt again.

Zeni flags every card charge missing a receipt, gives your team one place to upload or email them, and matches each receipt to its charge.

Explore receipts →
Zeni Flux Analysis screen comparing October and September spend by vendorAI CFO explains the spike: up 167% from September
FLUX ANALYSIS

Catch the swing before investors do.

Month-over-month variances by vendor, with a drill-down into the spend trend and an AI CFO summary of what changed.

Explore month-end close →
Zeni Reconciliation screen for a company bank accountFound 3 statement transactions missing from the books
RECONCILIATIONS

Matched to the bank, to the penny.

Zeni compares each statement to the cleared balance, finds transactions missing from the books, and suggests the entries to create.

Explore reconciliation →
Zeni Task Checklist with close tasks, owners and due datesEvery close task has an owner, a due date and time tracked
TASK CHECKLIST

See who owns every close task.

Every close task has an owner, a priority and a due date, so you can see where the month stands while it is still open.

Explore month-end close →
Beyond the close

Run more of your finance work in one place.

Invoice icon

Invoicing

Invoice your first customers, manage subscriptions and track payments, with automated reminders for past-due invoices.

Checklist icon

Task management

Give every close task an owner, a priority and a due date, so you see who owns what.

Explore month-end close →
Comment icon

Commenting

Ask a cofounder for a receipt or memo right on the transaction, @mention them, and keep the answer on the record.

Explore commenting →
Your questions, answered

What founders ask. What the AI CFO answers.

Every month
"How much cash do we have, and what's our runway?"
"What were our top five vendors last quarter?"
After close
"Why did burn go up in September?"
"Break down salaries and benefits for June."
Planning
"Build a 13-week cash forecast."
"Summarize Q3 for our investor update."
Who it's for

Built for founders and the teams they build.

A small startup team laughing during a stand-up meetingYour team, plus an AI Accountant and AI CFO

Founders and CEOs

Founders who want accurate books and taxes handled without hiring an accountant.

  • Stop spending weekends on bookkeeping
  • Know burn and runway any day of the month
  • Send investor updates from numbers you trust

Finance leads and operators

Growing startups that need a fast monthly close, board reporting and room to add CFO guidance.

  • Monthly close with flux analysis
  • Fractional CFO support for funding rounds
  • Books ready for due diligence
Built for startups

Build the company. We'll keep the books.

See the AI Accountant and AI CFO on books like yours.

Review by design
Reviewed by Zeni's finance team
Reasoning on every AI call
Approvals before anything posts
Separation of duties
SOC 2 Type II compliant
FAQ

Startup accounting software FAQs.

What is the best accounting software for startups?+
Look for software that keeps books current, produces GAAP financials and supports funding rounds. Zeni pairs AI software with a finance and tax team that does the work.
Do startups need to file taxes before they have revenue?+
Yes. A startup that is spending money still files federal and state income tax returns, and Delaware corporations owe an annual franchise tax. Zeni's tax team handles these filings and keeps you in compliance.
Can startups claim R&D tax credits?+
Many can. Qualifying startups can claim the federal research credit, and Zeni's tax team handles the claim as an add-on.
Do startups need a CPA?+
Most startups need CPA-level help for tax, audits and fundraising, not a full-time hire. Zeni's team includes CPAs, tax advisors and CFOs.
When should a startup switch from cash to accrual accounting?+
Usually before raising a priced round or once revenue is meaningful. Investors and auditors expect accrual-basis GAAP financials.
Who sets up and manages the AI agents?+
Zeni does. Our team deploys the platform and manages the AI agents, so everything works out of the box. Your Zeni finance team reviews the work, and you approve what needs your sign-off.
Can the AI make mistakes?+
Yes. Lower-confidence transactions go to a review queue instead of posting, your Zeni team reviews the close, and the AI CFO is in beta, so check anything important against the books.
How much does startup accounting software cost?+
Pricing depends on your monthly expenses and the services you need. See current plans on the pricing page or book a demo for a quote.
Sources and notes
  1. Zeni internal figures, October 2026, and customer results from Zeni's published case studies.
  2. AI CFO is in beta and can make mistakes; check anything important against the books.