AK
Ayesha Khan
Co-founder and CEO
We are building accounting that stays out of your way
Numbers Calculus started with one frustration: good bookkeeping should not need a maze of spreadsheets. We bring invoices, bank feeds and tax deadlines into one clear place.
Every business deserves books it can actually trust.
We began as a handful of engineers and accountants who kept seeing the same problem: owners spending their evenings reconciling bank lines, chasing invoices and guessing at tax deadlines.
So we built one workspace where those jobs connect. An invoice sent becomes a payment matched, a payment matched becomes a report updated, and a report updated becomes a deadline you can see coming.
Today thousands of teams rely on us, from solo freelancers to growing groups. Our goal has not changed: make the numbers calm, clear and correct.
12,000+
Businesses run on our books
2.4M
Invoices processed every year
40+
Countries with active teams
What we stand for
Six principles guide every feature we ship and every conversation we have.
Clarity first
Every screen answers one question well. If a number needs explaining, we have not finished designing it.
Trust by default
Your financial data is encrypted, backed up and never sold. Security is part of the product, not an add-on.
Built with accountants
Accountants shape our roadmap, so the software fits the way real books are kept and reviewed.
Quiet automation
We automate the repetitive work, from matching bank lines to reminding clients, and keep you in control.
Fair and simple pricing
Clear plans with no hidden fees. You pay for what you use and can change plans whenever you need to.
People, not tickets
When you reach out, a person who knows the product answers, usually within the same working day.
How we got here
A few steps along the way, from a small experiment to a platform thousands rely on.
2021
The first line of code
A small team starts building simple invoicing for freelancers who were tired of spreadsheets.
2022
First 1,000 businesses
Word spreads through accountants, and our first thousand customers move their books over.
2024
Bank feeds and tax calendar
Automatic bank matching and shared tax deadlines arrive, cutting month-end work dramatically.
2025
The accountant network
Accountants get their own workspace to manage many clients from one place.
2026
Multi-company books
Growing groups can now run several companies under a single login with shared reporting.
The people behind the numbers
A small, focused team of engineers, designers and accountants.
HQ
Hamza Qureshi
Co-founder and CTO
SM
Sofia Marin
Head of Product
DR
Daniel Reed
Head of Customer Success
Ready to see your numbers clearly?
Join thousands of teams who closed their books faster this month. Set up takes an afternoon, not a project.