Banking, invoicing, bookkeeping and tax — built for UK & US freelancers. Everything you need to run the money side of your business, in one calm place.
Works with the tools you already use
One place for every part of your finances — so you can get back to the work you actually love.
Connect your accounts and see every transaction, balance and cash position in real time.
Send branded invoices and quotes, set up retainers and track who has paid at a glance.
Transactions categorised automatically, with a review queue that keeps your books clean.
Your tax pot updates as you earn, at your real marginal rate — no year-end surprises.
See income projections, runway and payment speed so you always know what is coming.
Profit & loss, tax return boxes and year-end close — export ready in a couple of clicks.
Sofinos speaks both tax systems natively — the rules are baked in, not bolted on.
Try the same tax engine that powers Sofinos — no sign-up required.
Income tax + Class 4 NIC from your annual profit, using 2025/26 rates.
Calculate →SE tax + income tax + QBI deduction from your net profit, using 2025 rates.
Calculate →Your real hourly rate — income divided by the hours you actually worked.
Calculate →Freelancers and solo founders use Sofinos to stay on top of the money side.
“I finally know exactly how much tax to set aside every time I get paid. No more January panic.”
“Invoices, expenses and my Schedule C in one place. It replaced three separate tools for me.”
“The cash flow forecast is scarily accurate. I can see my runway months ahead now.”
Join solopreneurs running their whole money stack on Sofinos.
