One flat price per filing. No hourly anything. No subscription.
Pay once, for the year you file — and if a register won't accept it, refiling is free or the fee comes back. Every price is the price you pay: no VAT is added at checkout, because we're not VAT-registered. Rivals' plus-VAT stickers grow 20% at the till; ours don't.
Pay per filing, once
File a year, pay for a year.
Dormant company
£29 one-off
Your company didn't trade — the government still wants two filings. We do both: accounts to Companies House, nil CT600 to HMRC.
- Dormant accounts + nil CT600, both registers
- Long first years split into two returns automatically
- Documents previewed free before you pay
Trading company
£59 one-off
The whole trading year: FRS 105 accounts to Companies House, CT600 with iXBRL computations to HMRC — figures agree by construction.
- Eight figures in — or import a trial balance
- Marginal relief and first-year splits handled
- Prior-year comparatives read from the register
Charity or CASC
£39 one-off
A charity claiming exemption on all its income: the CT600 with the CT600E supplementary pages, filed and tracked to HMRC.
- Full exemption claimed, tax nil
- Trustee declaration, IRmark receipt kept forever
- Documents previewed free before you pay
Every filing: documents previewed free before you pay · live tracking to each register's acceptance · rejected? refiling is free — or refunded.
When you need them
Add-ons, priced the same way.
- Confirmation statement
- £69 one-off
- The annual CS01, prefilled from the public register — the £50 government fee is included.
- MTD VAT return
- £9 per return — free while in beta
- The nine boxes with the arithmetic done for you, filed over HMRC's MTD API. Free while in beta.
The only subscription we sell
Compliance Watch — the whole year, handled.
Everything your company must file this year, done and watched: the confirmation statement with its £50 government fee included, the dormant filings, and a reminder before every deadline. Filed elsewhere? The dashboard still tells the truth.
£89 /year, per company
Watch my companyFree, account optional
And a lot of it costs nothing.
Deadline watching
Every statutory deadline for any UK company, straight from the register — with an iCal feed. No account needed.
Tools & guides
Free calculators and plain-English guides, running the same engine that files the returns.
Preview before paying
Documents are generated and previewed in full before any payment — for every filing type.
Who can file with WrenTax
UK private limited companies filing as micro-entities — since April 2025 that's turnover up to £1m, balance sheet up to £500k, up to 10 employees. That covers the overwhelming majority of small owner-managed companies. We check eligibility from the register and your figures before you pay, and refuse honestly when your company needs more than software.
What we deliberately don't do
- — R&D tax credit claims
- — Director's loan charges (CT600A / s.455)
- — Group structures and consolidated accounts
- — Loss carry-back and complex loss reliefs
- — Investment property and audit-required companies
Those need judgement, not forms — an accountant is the right answer, and pretending otherwise is how cheap software gets people fined.
Accepted or refunded
Clause 5 of the terms, not small print — read it.
Receipts from the registers themselves
Correlation IDs and submission numbers, quoted verbatim — see one.
Operated by UniBookTrade Ltd
Company 17019570 — look us up with our own tool.
The honest bit
The price on the tin is the price at checkout: UniBookTrade Ltd is not VAT-registered, so no VAT is added — unlike most rivals' prices, which grow 20% at the till. (If we register for VAT later, VAT will be added and shown at checkout before you pay.) Where a Companies House fee applies it's included in the price. If a filing is rejected, refiling is free; if it can't be made acceptable, the fee is refunded in full — that's in the terms, not the small print. Submission goes live once HMRC and Companies House recognition completes — until then every flow runs end-to-end in preview, and nothing is charged. Prices shown are launch prices.