Nixsheets | AI-native finance & accounting for SaaS and AI companies

Past and present clients

What clients say

In their words

“Clarity around recurring revenue, spending, and how the pieces fit together.

If you're running a SaaS business, Sal and his team at Nixsheets are the people you need to be working with. They've given us so much clarity at G2X around recurring revenue, spending, and how the pieces fit together. They genuinely understand the SaaS business model, and it shows in the questions they ask, the reporting they build, and the advice they give.”

Ron Jones

CEO, G2X

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“Made going through diligence easy when we brought on a growth equity investor.

Sal was our first finance hire at Quorum and was integral to Quorum's success as we built the business. He immediately jumped in, rolled up his sleeves, and got to work making sure that we had a strong financial system in place… Sal's work made going through diligence easy when we brought on a growth equity investor.”

Alex Wirth

CEO, Quorum

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“Incredible fractional CFO service. Every SaaS startup founder needs to know Sal.”

Kieran O'Brien

Co-founder, ShopGenie

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Who we serve

Built for scaling SaaS & AI companies

$1M–$50M

in ARR

SaaS & AI

companies

North America

headquartered

No in-house

finance team

Sound familiar?

No board or investor reporting

Board decks and investor updates get pieced together from scratch each time, or don't happen at all.

No one owns the finance function

An internal team, an outside bookkeeper, a fractional CFO, and a stack of software tools, but nobody owns the architecture or the execution.

SaaS metrics take days

Every ARR, retention, or churn figure means days of manual pulling, reconciling, and back-and-forth.

Transacting is a headache

Invoicing, collections, and paying bills eat up founder and operator time that belongs elsewhere.

A raise, audit, or diligence is coming

You need numbers that hold up under scrutiny, and you can't afford to scramble for them.

Two or more of these?

That's exactly the gap we close. Let's talk →

We're probably not the right fit if…

✕ Clean, reliable numbers aren't a priority for you.

✕ You're not a SaaS or AI company.

✕ You already have an in-house CFO or Controller.

Why Nixsheets

Everyone else covers a corner. We cover the whole map.

A SaaS finance function needs both: AI and software to automate the work, and experienced people to own it, from transactions to strategy. Most options give you one piece. We give you all of it, on a deterministic ledger that keeps every number exact and auditable.

Specialized in SaaS & AI

SaaS and AI companies are all we do. ARR, revenue recognition, subscription and usage billing, and the metrics investors scrutinize are our everyday work, not edge cases.

The right-size, end-to-end fit

Not a bookkeeper, and not purely strategic. We focus on operations, systems, and processes: the layer where finance functions actually break as companies scale.

Embedded finance teams

Our team works as if it is part of yours: inside your workflows, close to your operators, and accountable for your numbers, not a vendor you hear from once a month.

AI / Software + People. You need both. Here's where every option lands.

NixsheetsAI, software, and experienced people, from transactions to strategy, specialized in SaaS & AI.

AI / Software, transactionalAccounting, rev rec & AI toolsAutomates entries and schedules, but no one owns the judgment calls or the close.

AI / Software, strategicFP&A & reporting toolsDashboards and models, built on data nobody has cleaned or reconciled.

People, transactionalBookkeepersRecord transactions by hand. Systems, reporting, and judgment are left to you.

People, strategicFractional CFOsBoard advice and models, sitting on top of spreadsheets and books nobody owns.

One partner replaces all four. Our technology is included in every engagement, not billed separately.

Save up to $40K

on rev rec and reporting software

Solutions & pricing

Three ways to work with us

Every engagement starts with the Controller foundation. Add FP&A or CFO-level leadership as your company grows. Each tier replaces the in-house roles you'd otherwise have to hire, and our technology is included at every level.

Core offering

Controller-led

Starting at $2,500/month

Systems, monthly close, and a SaaS reporting packet. The foundation every company needs.

Replaces: a bookkeeper and a controller

Tier 2

FP&A-led

Custom pricing

Everything in Controller-led, plus budgeting, forecasting, and budget-vs-actuals.

Replaces: a bookkeeper, a controller, and a director of finance

Tier 3

CFO-led

Custom pricing

Everything in FP&A-led, plus strategic finance, fundraising support, board materials, and key decisions.

Replaces: a bookkeeper, a controller, a director of finance, and a CFO

Core offering

The Controller Package

Everything a SaaS or AI company needs to run on clean, reliable numbers, from the transactional plumbing to the monthly reporting packet.

Build

We build your transactional infrastructure: AR, AP, expenses, payroll, and the systems and workflows that connect them.

We close your books every month on a dependable cadence, with reconciliations and revenue recognition handled properly.

Report

You get a SaaS-specific reporting packet: your financial statements plus every SaaS metric your board and investors track.

What we deliver every month

Nixsheets executive summary: monthly P&L, bookings, ARR roll-forward, customers, growth, and retention

A page from the monthly packet: P&L, bookings, ARR roll-forward, customers, growth, and retention, actuals flowing into forecast. Sample data shown.

01 Financial statements

SaaS P&L

Structured for SaaS, with gross margin shown the way investors read it.

Department P&Ls

Spend by function, so every leader owns their numbers.

Balance Sheet

Reconciled and supported every month.

Cash Flow Statement

Where cash came from and where it went.

02 Cash & working capital

AR Aging

Who owes you, how much, and for how long.

AP Aging

What you owe and when it comes due.

Burn

Gross and net burn, tracked month over month.

03 Recurring revenue

ARR by Customer

A customer-level ARR build, tied out to billing and the books.

ARR Roll-forward

New, expansion, contraction, and churn, from opening to closing ARR.

04 SaaS metrics

Retention

Gross and net revenue retention, and logo churn.

Unit economics

What it costs to acquire a customer and how fast you earn it back.

Efficiency & growth

ARR per FTE, Rule of 40, and the other benchmarks investors use.

Why a Controller comes before a CFO

Most startups don't need a CFO yet. They need a foundation. Forecasts, fundraising models, and board strategy are only as good as the numbers underneath them.

Without clean books, reliable systems, and a consistent close, CFO-level spend buys analysis built on numbers nobody trusts. We build the foundation first, so strategic finance has something solid to stand on when you're ready for it.

Controller foundation of systems, close, and reporting, with FP&A and CFO layers above

Add as you grow

Accounts Receivable

Invoicing, collections, and cash application.

Accounts Payable

Bill pay, approvals, and vendor management.

Payroll Services

Payroll runs, processing, and reconciliation.

Tax & audit, coordinated

We work with your CPA and auditors.

Our platform

The system that replaces the spreadsheets

Most finance functions are held together by spreadsheets: deferred revenue schedules, ARR trackers, allocation models, prepaid amortization. They break, they don't tie out, and they live with one person. Our AI-native subledger automates that entire layer.

CRM, Stripe and QuickBooks flow into the Nixsheets subledger, which produces the reporting packet, SaaS metrics, and GL entries

Deferred revenue

Schedules built and rolled forward from billing data, not maintained by hand.

ARR

Customer-level ARR that ties to your billing system and your books.

Allocations

Shared costs allocated across departments consistently, every month.

Prepaids

Prepaid expenses amortized automatically on the right schedule.

Why a deterministic ledger matters

AI does the work. A deterministic ledger keeps it right.

Accounting has one correct answer. The same transactions must always produce the same numbers, every figure has to tie to its source, and an auditor has to be able to follow every step. A large language model on its own can't promise any of that.

An LLM without guardrails

Probabilistic by design: it can return a different answer to the same question, produce confident numbers that are wrong, and leave no audit trail from a figure back to its source.

Nixsheets: AI on a deterministic ledger

✓ Rules-based accounting: the same inputs always produce the same outputs.

✓ AI handles the heavy lifting, like classifying, matching, and flagging exceptions.

✓ Every AI output is checked against the ledger before it reaches your books.

✓ Our team reviews and owns the result, so every number is traceable and auditable.

How it works

From kickoff to a finance function that runs like clockwork

Onboarding takes 30 to 90 days, depending on where your books start.

Built on top of QuickBooks

Our AI-native subledger sits on top of QuickBooks, so there's no need to replace the core of what you have.

Then we refine, together

Over the following months, we fine-tune the process and reporting with you until it fits how you run the business.

Data structure & integrity

Chart of accounts, departments, dimensions, and SKUs set up consistently across your accounting system and every subsystem.

Tech stack selection, implementation & integration

We choose the right tools for your stage, implement them, and connect them so data flows without manual handoffs.

Revenue & COGS identification

We define your revenue streams and cost of revenue so margins and SaaS metrics are right from the start.

Process mapping

We document how money moves through your business: who does what, when, and in which system.

Historical cleanup, ARR build & reporting packet

We clean up and tag your history, build customer-level ARR, and create your metrics and reporting packet in our AI-native subledger.

Monthly procedures & reporting cadence

Close procedures, deadlines, and a reporting rhythm are established, so every month runs the same way.

Our team

A fractional team, not a fractional person

A SaaS finance function needs three to four distinct skill sets. Hiring all of them in-house isn't realistic at your stage, and each role also needs real SaaS and AI experience: ARR, revenue recognition, usage-based billing, and the metrics investors expect.

People with that industry depth are hard to find for even one role. Someone who can do all four, and do them well, is a unicorn. With Nixsheets, you get all four skill sets, specialized in SaaS and AI, in one engagement.

Bookkeeper

Transactions

Controller

Systems & close

FP&A Analyst

Budgets & forecasts

CFO

Strategy & capital

All four, specialized in SaaS & AI

Who you'll work with

Sal Abdulla

Founder & CEO

A SaaS CFO with more than a decade of experience across bootstrapped, PE-backed, and VC-backed startups between $1M and $50M in ARR.

Big 4–trained accountants

KPMG and EY alumni

Our team is made up mostly of accountants trained at KPMG and EY, bringing audit-grade rigor to every close.

In-house engineering

The team behind the platform

Our AI-native subledger and reporting platform is built and maintained by our own engineers, working alongside the finance team. The technology isn't a tool we rent; it's part of how we deliver, and it evolves with what our clients need.

FAQs

The finance team for SaaS and AI companies from $1M to $50M ARR.

In their words

Built for scaling SaaS & AI companies

Sound familiar?

We're probably not the right fit if…

Everyone else covers a corner. We cover the whole map.

AI / Software + People. You need both. Here's where every option lands.

Three ways to work with us

The Controller Package

What we deliver every month

Why a Controller comes before a CFO

Add as you grow

The system that replaces the spreadsheets

AI does the work. A deterministic ledger keeps it right.

From kickoff to a finance function that runs like clockwork

A fractional team, not a fractional person

Who you'll work with

Frequently asked questions

Let's map out your first 90 days.