Online Accountant for
UK Small Businesses.
Fixed-fee. HMRC-registered.
Get Self Assessment, company accounts, VAT, MTD and company registration handled online by UK accountants with clear fixed pricing. No hourly billing, no surprise fees — published prices, filed direct with HMRC and Companies House.
Built for UK sole traders, landlords, contractors and limited companies
WHO IS THIS FOR
Who this service is for
If you want a real UK accountant without the high-street price tag, TaxRoot handles every common UK tax filing online — the same person handles your file from quote to HMRC submission.
Sole traders & freelancers
Self Assessment with SA100 + SA103 self-employment from £134. Allowable expenses optimised, payments on account calculated, filed direct with HMRC.
Limited company directors
Company accounts and CT600 Corporation Tax from £389/year. Confirmation Statement, director’s personal Self Assessment, dividend vouchers and salary/dividend planning.
Landlords & contractors
SA100 + SA105 property, mortgage interest restriction handled, CIS subcontractor refunds, IR35-aware contractor accounting. From £134 per Self Assessment.
WHAT'S INCLUDED
What TaxRoot can handle online
Self Assessment
SA100 with every supplement (SA103, SA105, SA106, SA108, SA109) prepared, reviewed and filed direct with HMRC.
Company accounts + CT600
Statutory accounts at Companies House, Corporation Tax CT600 at HMRC, allowances and reliefs reviewed.
Company registration
Form a UK Limited Company in 24 hours — £100 all-in (£50 Companies House fee + setup). Non-UK directors accepted.
VAT returns + MTD
Quarterly VAT returns under standard, cash or flat-rate schemes. MTD-compliant digital filing.
MTD for Income Tax
Quarterly updates, EOPS and Final Declaration for sole traders and landlords above the threshold — from £34/month.
Payroll + bookkeeping
PAYE/RTI from £15 per payslip; per-transaction bookkeeping from 59p when you need it.
THE PROCESS
How it works
Get a fixed-fee quote
Tell us what you need on /pricing. Every service is individually priced — no plans, no bundles, no hidden admin fees.
Sign up & authorise us
Create your account and authorise TaxRoot as your HMRC agent. Takes about two minutes.
Upload your records
Send documents through your TaxRoot dashboard. We tell you exactly what we need; nothing more, nothing less.
We file with HMRC
A UK accountant prepares the filing, asks any clarifying questions, then submits direct to HMRC / Companies House.
HMRC RULES
What we file for you online
These are the filings TaxRoot completes for UK sole traders, landlords and limited companies. Every one is filed direct with HMRC or Companies House under our Agent Services Account.
Self Assessment (SA100 and supplements)
TaxRoot prepares and files the SA100 plus every relevant supplement — SA103 self-employment, SA105 UK property, SA106 foreign income, SA108 capital gains, SA109 residence — for UK sole traders, landlords, directors and high earners. From £134 per return.
HMRC — Self AssessmentCorporation Tax (CT600)
TaxRoot prepares the CT600, statutory accounts and supporting tax computation for UK Limited Companies. Filed within 12 months of the accounting period end (payment 9 months and 1 day after). All allowances and reliefs reviewed before submission.
HMRC — Corporation TaxVAT returns + Making Tax Digital
Quarterly VAT returns under standard, cash or flat-rate schemes, filed MTD-compliant. TaxRoot also handles VAT registration when turnover approaches the £90,000 threshold.
HMRC — VAT registrationMTD for Income Tax (from April 2026)
Quarterly digital updates, End of Period Statement and Final Declaration for UK sole traders and landlords with qualifying income above the threshold. TaxRoot handles registration, software, every quarterly submission, and the year-end declaration.
HMRC — MTD for Income TaxCompanies House annual accounts + Confirmation Statement
Statutory annual accounts filed at Companies House (9 months after year-end), Confirmation Statement filed annually, and registered office address renewal if you use ours.
Companies HousePRICING
Fixed pricing. Pay only for what you need.
Simple, fixed pricing. No hidden fees.
Prices shown are flat fees with no hidden charges. Larger limited companies and complex setups are quoted transparently before any work begins.
COMMON QUESTIONS
Frequently asked questions
Official Resources
Useful links from HMRC and UK government sources.
RELATED SPECIALIST SERVICES
Other ways TaxRoot can help
Get an online accountant who actually picks up. From £134.
All TaxRoot Services
Everything you need to start, run, and grow your UK business — all in one place.