SaaS Accounting Services
SaaS Accounting Built for Founders Not Generalists.
ASC 606 compliance, ARR that reconciles to your books, and a monthly close in 10 business days. We work with seed through Series B SaaS companies, including the crypto-native and AI-native startups most firms refer out.
Bookkeeping starts at $1,200/month· Fractional CFO starts at $1,500/month· Trusted by SaaS founders raising from a16z, Sequoia, and Tier 1 crypto funds
Specialized SaaS Accounting and Financial Services
What we Actually Do.
We handle the operating accounting between funding rounds. The work that has to be done every month, whether or not you’re raising.
- Bookkeeping
Bookkeeping & Monthly Close
Accrual-basis books in QuickBooks Online or Xero. Every transaction reconciled. Monthly close completed in 10 business days. Financials that match what your auditor and your VC expect to see.
- Revenue Recognition
ASC 606 Revenue Recognition
Deferred revenue waterfalls for every customer contract. Multi-year, ramped, and usage-based deals handled correctly. ARR bridges that reconcile to the GL.
- SaaS Metrics
SaaS Metrics That Tie to the Books
ARR, MRR, NRR, GRR, CAC, and LTV calculated from billing data and reconciled to the financials. No dashboard estimates. No surprises in diligence.
- Taxes
Tax and R&D Credits
Federal and state tax filings, Section 174 capitalization, and R&D tax credits. Most AI and SaaS founders qualify for credits they haven’t claimed. We do the documentation auditors actually require.
- Our Support
Fractional CFO and Fundraising Support
Deferred revenue waterfalls for every customer contract. Multi-year, ramped, and usage-based deals handled correctly. ARR bridges that reconcile to the GL.
- Audit
Audit Readiness
Cleanup, documentation, and process setup before your auditor arrives. We work with RSM, Citrin Cooperman, Wolf & Company, and BPM directly.
- Bookkeeping
Crypto-Native SaaS
Wallet reconciliation, on-chain payment recognition, stablecoin treasury, and lot-level cost basis. Most SaaS firms refer this work out. We do it in-house.
What You Get
What You Actually, Get Every Month
When you sign on, the deliverables are specific and the timing is fixed.
By the 10th business day of every month:
- Profit and loss statement, accrual basis
- Balance sheet with reconciled accounts
- Cash flow statement
- Deferred revenue waterfall
- ARR snapshot with month-over-month bridge
- One-page metrics summary (MRR, ARR, NRR, burn rate, runway)
Continuously available:
- A shared Google Drive or Box folder with every report and reconciliation
- Direct Slack or email access to your senior accountant during business hours
- Quarterly review call with your engagement lead
On request, no extra charge for active clients:
- Investor update support
- Board deck financial sections
- Diligence response packages
Annually:
- Federal and state tax filings
- 1099 preparation and filing
- Section 174 capitalization documentation
- R&D tax credit study (if eligible)
How We're Different
We handle the operating accounting between funding rounds. The work that has to be done every month, whether or not you’re raising.
We focus on the operating months, not just the raise. Most VC-focused startup CPAs are built around fundraising events. We handle the 10 months between rounds when most of the accounting actually happens.
We can read a wallet. If you take payment on-chain, hold treasury in stablecoins, or pay contractors in crypto, your books need someone who can trace each balance to a hash. We can.
We handle AI cost allocation. GPU spend, training data, model inference costs, and Section 174 capitalization for software development. Most generalist firms get this wrong.
Flat-free pricing, not hourly. Cleanup is quoted as a fixed scope. Monthly close is a flat monthly fee. No retainer surprises. Full pricing tiers are on our pricing page.
Real senior accountants, not offshore staff. Every engagement has a senior accountant who knows your business. Your point of contact does not change every six months.
Our Team Members
Who You'll, Work With.
Most clients work with a team of two or three: an engagement lead, a staff accountant handling daily transactions, and a CFO or controller for strategic finance work as needed.
We’ll introduce you to your specific team during the audit call, before you commit to anything.
Reinoud Dykema
Interim CFO
Kristen Delgreco
Interim Controller
Marlene van Geer
Interim Accountant
Who You'll, Work With.
We work with funded SaaS founders between $1M and $20M ARR, including:
- B2B SaaS with annual contracts and complex billing
- Crypto-native SaaS taking payment on-chain or in stablecoins
- AI startups with usage-based pricing and GPU cost allocation
- Vertical SaaS in healthtech, fintech, and biotech
If you’re pre-revenue or below $500K ARR, we’re probably not the right fit yet. We’ll tell you that on the call.
Three Steps
The Three-Step for Engagement.
Book a 30-minute call.
We look at your current books, billing system, and metrics. You’ll know within the call whether we’re a fit.
We audit and quote.
Flat fee for cleanup, based on transaction volume and contract complexity. Monthly fee based on Fortress’s standard pricing tiers. No hourly billing surprises.
We rebuild and maintain.
Cleanup completes in 4 to 8 weeks for most SaaS companies. After that, monthly close in 10 business days, every month.
Common Questions
Common Questions, Before You Switch Firms.
What accounting services do SaaS companies need?
How does the handoff from my current firm work?
We’ve handled hundreds of transitions. The standard timeline is two to four weeks. We collect your last six months of books, identify any cleanup needed, and run parallel for one month so the transition month closes cleanly. Your team isn’t pulled into the handoff beyond a one-hour kickoff call and access provisioning.
What if I'm in the middle of a fundraise and can't switch right now?
We can do fundraise prep without taking over your books. Many of our engagements start as a fundraise prep project, then expand to ongoing accounting after the round closes. The work stays defensible and the transition happens when you have bandwidth.
What if I outgrow you?
Most clients don’t. We work with companies through Series C and into IPO prep. If you do outgrow us — usually because you’ve hired a full in-house finance team — we transition the work cleanly. We’ve helped clients hire their first VP of Finance and onboarded them ourselves.
Are you actually CPAs?
Yes. Every senior accountant on our team is either a CPA or works directly under a CPA. We don’t lead with the credential because the work matters more, but if you’re checking, every engagement has a CPA-level reviewer signing off on financials before they go to you.
Most Common Questions
Frequently Asked Questions
What's the difference between SaaS accounting and regular accounting?
SaaS accounting requires ASC 606 revenue recognition, deferred revenue tracking, and reconciliation of subscription metrics like ARR and MRR to the general ledger. Regular accounting handles cash in and cash out. SaaS accounting handles contracts that span multiple periods, which is most of the work.
Do I need a SaaS-specific accountant if my business is small?
Below roughly $500K ARR, a generalist bookkeeper may be enough. Above that threshold, especially if you plan to raise institutional capital, you need someone who handles ASC 606 and SaaS metrics correctly. The cost of fixing it later is higher than doing it right from the start.
How much does SaaS accounting cost?
Fortress bookkeeping starts at $1,200/month for pre-seed and seed-stage SaaS companies, $3,500/month for Series A through Series B, with custom pricing at Series C. Fractional CFO support starts at $1,500/month. Cleanup is quoted as a flat fee based on scope. Full pricing on our pricing page.
What software do you use for SaaS clients?
We work primarily in QuickBooks Online and Xero. We integrate with Stripe, Mercury, Brex, Ramp, and most major billing systems. For crypto-native clients, we use Bitwave and Cryptio for wallet reconciliation. For complex SaaS metrics, we build directly from billing data rather than relying on dashboard tools as the source of truth.
Can you help with our fundraising round?
Yes. We prepare GAAP financials, ARR bridges, unit economics, and 12-month forecasts for seed through Series B rounds. Most of our clients are actively raising or planning to raise within 12 months.
Do you handle crypto and Web3 SaaS companies?
Yes. We handle on-chain payment recognition, wallet reconciliation across Ethereum, Base, Arbitrum, Solana, and Stacks, stablecoin treasury, and lot-level cost basis. Most SaaS-focused accounting firms refer this work out. We do it in-house.
How long does onboarding take?
Most onboardings complete in 2 to 4 weeks. Faster if your books are already in good shape. Slower if cleanup is required first.
Still have questions? Contact us.
Get your SaaS Accounting Right Before Your Next Raise.
The fix is boring, which is why it works. Book a call. We’ll tell you what’s broken and what it takes to fix it.
47 funded SaaS clients· Bookkeeping from $1,200/month· 4 audit firm referral partners· Crypto and AI handled in-house