Updated July 2026 · Prices as published by providers; always check their sites
Since HMRC's free service closed in March 2026, a buy-to-let company has four realistic routes to filing its Company Tax Return. We make one of them, so read this knowing that — we've tried to be scrupulously fair, including about when you should not use us.
| Route | Typical cost | Scope | Best when |
|---|---|---|---|
| This site | First filing free, then £19/yr | Deliberately narrow: residential-let SPVs, micro-entity, profitable year, no disposals | Your company fits the scope exactly — the 60-second gate tells you |
| Per-filing software (e.g. WeFile ~£25, TinyTax ~£59) | £25–£60 per return | Full CT600 with more schedules; you fill in the boxes yourself | You're comfortable with accounts and the form, but fall outside our scope |
| Subscription software (e.g. TaxCalc and similar) | ~£100+ per year | Full scope, multiple companies, amended and prior-year returns | Portfolios of companies, or an appointed agent |
| An accountant | £300–£800+ per year | Everything, plus judgement and advice | Anything non-routine — see the list below |
Full-scope software has to present every CT600 box, because someone somewhere needs each one. You get the whole form and the accounting standard to navigate. We inverted that: because we only accept the simple case, we can ask about twenty plain-English questions — rent, expenses, interest, balances — and generate the accounts, computation and CT600 ourselves, with the tax rules (full mortgage-interest deduction, marginal relief, associated companies) applied for you. The trade is real, though: the moment your year is unusual, we're the wrong tool, and we say so at the gate rather than after an hour of typing.
Go to an accountant (not just other software) the year you buy or sell a property, borrow from your own company, join a group, or let anything other than plain residential property. These involve judgement calls where getting it wrong costs multiples of any fee saved. For a plain-vanilla year that happens to fall outside our scope, per-filing software plus care is a reasonable middle road. (A long first period — 12 months plus a few days — is handled here: we prepare both returns automatically.)
Our eligibility gate and wizard are free to walk through end-to-end with no signup — you see your full computation before anything is generated. Several competitors also let you look before paying; Easy Digital Filing, for instance, lets you prepare first and pay on submission. Comparing what each asks of you for your own numbers is ten minutes well spent. Our calculator shows the tax result on its own if that's all you need today.
Six yes/no questions, no signup, and an honest answer — including "no, use an accountant".
Start the eligibility check