The Freelancer OS forBookkeepers
TrustSolo is the operating system for your first years of freelancing.
Start with Confidence
Going self-employed is an exciting time but getting setup correctly can feel daunting and the monthly admin can really eat into your time.
Need a contract?
Build, review and send a professional contract in minutes using ready-made templates for many popular disciplines. Your clients sign online. Templates reviewed by a UK solicitor.
Get paid quickly
Issue an invoice in seconds - just fill in the placeholders, review and send. Your client can pay online using the Stripe payment link. Automated payment reminders in case they forget.
Tax estimates
Track your HMRC tax liabilities in real-time. TrustSolo estimates and breaks down how much tax you'll need to pay, and when.
Contracts
A contract built for bookkeepers — covering what you actually need
Covers agreed services, system access terms, professional indemnity, and confidentiality. Purpose-built for bookkeeping engagements so both sides know exactly what is included.

The agreement

Your client signs online

Invoicing
Professional invoices sent and paid online
Send a professional invoice with an online payment link. Automated reminders go out so you don't have to chase. Every invoice logged, every payment tracked.


Tax
Understand your tax position at every step
A real-time tax estimate updated as you earn. Income tax, Class 2 NI — broken down in plain English.


Clients
Every client, contract and invoice in one place
See your full client history at a glance. Who owes you, who has signed, which projects are ongoing. No spreadsheets, no digging through email.


Already freelancing?
Tell us where you are this tax year and we'll take it from here — client, contracts, invoices and tax estimates, simplified from day one.
Get set up in just 5 minutes
How it works
Create an account
Select your business discipline, trading name, rates
Add a client, send a contract
Ready-made template contracts, Solicitor-reviewed, signed online
Invoices issued and paid online
Includes online payment link, automated reminders
Ready-made contract templates for designers, copywriters, developers, photographers, consultants, and more.
TrustSolo provides everything you need from day one.
Built on trust
Why freelancers trust us
Bookkeeper rates
What should you charge?
See typical UK day rates for bookkeepers at every experience level.
Simple pricing
One plan to get started. More on the way.
- Solicitor-reviewed contracts for your discipline
- Professional invoices with online payment links
- Automated payment reminders
- Tax estimates
- Freelance rate calculator
- Client address book
- Dashboard with income tracking
- Everything in Solo
- Appointments calendar and reminders
- Customised contract templates
- Proposals and quotes
- Time tracking
- Expense tracking with receipt capture
- Business health dashboard
Frequently asked questions
No. TrustSolo handles contracts, invoicing, payments, and tax estimates. For full bookkeeping you’ll eventually want an accountant, but TrustSolo gives you everything you need in your first years.
Set up properly from day one
TrustSolo focuses on your admin —
so you can concentrate on delivery
30 days full access. No credit card. Cancel any time.