The best CT600 software depends on your accounts type, where you need to file and how many filings you expect in a year. For eligible micro-entity and dormant companies, #Simple CompanyTax costs from £10 +VAT per company, per year, with unlimited filings and amendments for that company, including both returns of a long period and other accounting periods.
Published by #Simple CompanyTax, one of the suppliers compared. Supplier prices checked .
Every other supplier’s price and feature below comes from that supplier’s own published pages, checked on 17 October 2026, or from HMRC’s Corporation Tax commercial software supplier list, updated 12 October 2026. We have not tested other suppliers’ signed-in filing journeys. “Not stated” means we did not find the point on the checked pages, not that the supplier lacks it. We use no star ratings or review scores. #Simple CompanyTax publishes this page and is one of the suppliers compared.
Published prices for one company. Prices marked + VAT are before UK VAT at 20%. Charging units differ, so compare the total for the filings you need. #Simple CompanyTax appears first because it publishes this page. Row order is not a ranking.
| Supplier | Trading company | Dormant company | Charging unit | Companies House accounts | On HMRC’s supplier list | Amendments and extra periods |
|---|---|---|---|---|---|---|
| #Simple CompanyTax | £25 +VAT per year | £10 +VAT per year | Per company, per year | Yes, for eligible companies | Yes | Unlimited filings and amendments for the company, per year, including both returns of a long period and other accounting periods. |
| WeFile | £25 + VAT per filing | £15 + VAT per filing | Per filing | Yes, for supported accounts types | Yes | Each submission, including an amendment, is charged again at the filing price. The charge for the second return of a long period is not stated. |
| TinyTax | £59 + VAT per year (Solo) | £20 + VAT per year | Annual plan | Yes | Yes | Amendments need an active subscription, with no separate fee stated. Periods up to 18 months are split automatically. |
| Tax Optimiser | £10 + VAT | £5 + VAT | Per company for each accounting period | Yes | Not found | Amended returns for a paid period are free. The charge for the second return of a long period is not stated. |
| Taxley | £49.95 per return | £9.50 per return | Per return, no VAT to add | Yes | Not found | Amendments only for returns first filed with Taxley, at no extra charge. A first period of up to 18 months is one fee. |
| Taxpipe | £59 + VAT per return | No separate dormant price stated | Per return | No, its FAQ says it does not file accounts there | Yes | Rejection fixes at no extra cost. |
| CT600Filing | £79 + VAT | £49 + VAT | Per accounting period | Yes | Not found | Long periods up to 18 months in one payment. Unlimited amendments for the same period. |
| Easy Digital Filing | £119 + VAT with micro iXBRL accounts | No separate dormant price stated | Per filing | Add-on, £20 + VAT | Yes | Amendments within the period. Extended accounting period filing is an extra £40 + VAT. |
| Andica CT600 Cloud | From £70 + VAT per year | Not stated separately | Annual licence | Not stated for CT600 Cloud. Accounts Production is a separate product | Yes | Amended returns subject to HMRC limitations. |
| FreeAgent | £33 + VAT per month, or free with an eligible NatWest, RBS, Ulster Bank or Mettle account | Same subscription | Monthly bookkeeping subscription | Yes, FRS 105 micro-entity accounts | Yes | Filing is part of the bookkeeping subscription. |
| TaxCalc Limited Company | From £142 + VAT per year | Same licence | Annual licence | No. Attach accounts from TaxCalc Accounts Production (sold separately) or elsewhere | Yes | Licence-based. Accounts Production is priced separately. |
The four suppliers most often compared for a small company filing its own return. Each row links to the #Simple CompanyTax guide for that feature.
| Feature | #Simple CompanyTax | WeFile | TinyTax | Tax Optimiser |
|---|---|---|---|---|
| CT600 to HMRC and accounts to Companies House | Yes · FRS 105 and dormant accounts | Yes · FRS 105 and FRS 102 | Yes · Micro-entity accounts | Yes · FRS 105 and FRS 102 Section 1A |
| Unlimited filings and amendments for one price | Yes · Per company, per year | No · Each filing and amendment charged | Yes · With an active plan | Partly · Amendments free. Charged per period |
| Long period: you allocate amounts between the two returns | Yes · Enter once, then allocate | Partly · Split into two returns | Partly · Split automatically, profit apportioned | Partly · Filed as two returns |
| File only the outstanding second return of a long period | Yes | Not stated | Not stated | Not stated |
| Amend a CT600 first filed with another provider | Yes | Yes | Yes | Not stated |
| Import prepared reports, including prior-year comparatives | Yes · Xero, QuickBooks Online, Sage Accounting, CSV or Excel exports | Yes · Xero, QuickBooks Online, FreeAgent or CSV | Yes · Xero connection and trial balance upload | Yes · Xero and QuickBooks connection, spreadsheets |
| Charities, CASCs and unincorporated clubs (CT600E) | Yes · Charities, CASCs, clubs, CIOs and SCIOs | Yes · Charities and CASCs, CT600 only | Yes · Charities, CIOs, SCIOs and CASCs | Not stated |
| Community interest companies: CIC accounts and CIC34 report | Yes · CIC34 package to upload, plus CT600 | No · CT600 only for CICs | No · CT600 only for CICs | Yes · CIC34 PDF to file yourself |
| CT600A loans to participators | Yes | Yes | Not stated | Not stated |
| Preview the documents before paying | Yes · Watermarked PDFs, no card details | Not stated | Yes · Prepare and preview free | Yes · Free to prepare |
| Listed on HMRC’s Corporation Tax software supplier list | Yes | Yes | Yes | No · Not found under its own name |
| FRS 102 Section 1A small-company accounts | No · FRS 105 only | Yes | Not stated | Yes |
Supported workflows you can try before subscribing. They are reasons to choose #Simple CompanyTax, not claims that other suppliers lack them.
One annual price per company covers every supported filing for that company, with no limit on submissions or amendments. File both returns of a long period, catch up overdue periods, resubmit after a rejection or amend a return first filed elsewhere, all for the same annual price.
Not sure which returns to file? Open “Need help setting up your filing?” on the Company Profile & Period step. Answer which CT600 returns you need and what has already been filed, accepted or rejected, then select Apply. The wizard sets up the matching combination of new returns, amendments and Companies House accounts.
Imports current-period figures and prior-year comparatives from prepared trial balance, profit and loss or balance sheet reports. Review the period, mapped lines and figures before applying them.
Shows imported amounts that need your allocation on a long period and links to the existing allocation controls.
Files the outstanding short-period CT600 when the first return was already filed with the full accounts, without attaching the accounts again.
Prepares an amended CT600 from your corrected figures and amendment reason.
Files CT600 and CT600E for the supported charitable and CASC routes using your exemption choices and supplied accounts where required.
Prepares the supported CIC accounts and CIC34 ZIP package for you to upload to Companies House, before or alongside HMRC CT600 filing.
Shows watermarked draft PDFs before you pay so you can check the prepared filing.
| Compare | #Simple CompanyTax | WeFile |
|---|---|---|
| Trading company price | £25 +VAT per year | £25 + VAT per filing |
| Dormant company price | £10 +VAT per year | £15 + VAT per filing |
| Multiple submissions and amendments | Unlimited for the company, per year | Each submission is charged again, including amendments: £25 + VAT trading, £15 + VAT dormant |
| Long period (two CT600 returns) | Both returns included. You allocate amounts between them | Split into two returns. Charge for the second not stated |
| File only the outstanding second return | Yes | Not stated |
| Amend a return first filed elsewhere | Yes | Yes |
| Filing setup helper | Yes. Sets up your returns from your answers | Not stated |
| Accounts | FRS 105 micro-entity and dormant | FRS 105, FRS 102 Section 1A and full FRS 102 |
| Imports | Xero, QuickBooks Online, Sage Accounting, CSV or Excel exports | Xero, QuickBooks Online, FreeAgent or CSV |
| Charities, CASCs and clubs | CT600E for charities and CASCs, plus clubs, CIOs and SCIOs | CT600E for charities and CASCs, CT600 only |
| CIC accounts and CIC34 report | Yes. Package to upload, plus CT600 | No. CT600 only for CICs |
| CT600A loans to participators | Yes | Yes |
| Preview before paying | Yes. Watermarked PDFs, no card details | Not stated |
| Accountants | Practice plans from £80 + VAT per year for 5 companies | Accountant membership £250 + VAT per year |
WeFile charges per filing: £25 + VAT for a trading company and £15 + VAT for a dormant company. #Simple CompanyTax charges once per company, per year, with unlimited filings and amendments: £25 +VAT for a trading micro-entity and £10 +VAT for a dormant company.
One trading return: #Simple CompanyTax’s £25 + VAT per year is the same as WeFile’s £25 + VAT per filing.
One dormant return: #Simple CompanyTax’s £10 + VAT per year is £5 + VAT less than WeFile’s £15 + VAT per filing.
WeFile charges every submission, including an amendment, at its filing price. Its public reply to a customer review says “an amendment is a brand-new submission” charged at £25 + VAT for a trading company or £15 + VAT for a dormant company. With #Simple CompanyTax, submissions and amendments for the same company are unlimited for the year.
Both services import prepared figures, handle long periods and amend returns first filed with another provider. WeFile also prepares FRS 102 accounts and offers an accountant membership. WeFile CT600 pricing and scope →
| Compare | #Simple CompanyTax | TinyTax |
|---|---|---|
| Trading company price | £25 +VAT per year | £59 + VAT per year (Solo) |
| Dormant company price | £10 +VAT per year | £20 + VAT per year |
| Multiple submissions and amendments | Unlimited for the company, per year | Yes, with an active plan |
| Long period (two CT600 returns) | Both returns included. You allocate amounts between them | Split automatically, with profit apportioned |
| File only the outstanding second return | Yes | Not stated |
| Amend a return first filed elsewhere | Yes | Yes |
| Filing setup helper | Yes. Sets up your returns from your answers | Not stated |
| Accounts | FRS 105 micro-entity and dormant | Micro-entity accounts |
| Imports | Upload Xero, QuickBooks Online, Sage Accounting, CSV or Excel exports, including prior-year figures | Xero connection, trial balance upload and prior year from Companies House |
| Charities, CASCs and clubs | CT600E for charities and CASCs, plus clubs, CIOs and SCIOs | CT600E for charities, CIOs, SCIOs and CASCs |
| CIC accounts and CIC34 report | Yes. Package to upload, plus CT600 | No. CT600 only for CICs |
| Preview before paying | Yes. Watermarked PDFs, no card details | Yes. Prepare and preview free |
| Other filings | CT600 and company accounts | Also confirmation statements, MTD VAT and Self Assessment |
| Accountants | Practice plans from £80 + VAT per year for 5 companies | Portfolio from £99 + VAT per year for 2 to 3 companies |
TinyTax Solo costs £59 + VAT per year for one trading company, and its dormant plan £20 + VAT per year. #Simple CompanyTax’s annual prices are £25 +VAT and £10 +VAT.
Trading company: #Simple CompanyTax’s £25 + VAT per year is £34 + VAT less than TinyTax’s Solo plan at £59 + VAT per year.
Dormant company: #Simple CompanyTax’s £10 + VAT per year is £10 + VAT less than TinyTax’s Dormant plan at £20 + VAT per year.
Both file the CT600 to HMRC and micro-entity accounts to Companies House, split long periods into two returns and amend returns first filed elsewhere. With #Simple CompanyTax, you allocate relevant amounts between the two returns of a long period yourself. TinyTax apportions profit automatically. TinyTax pricing →
Tax Optimiser’s published price is lower for a single period: £10 + VAT per company for each accounting period, or £5 + VAT for a dormant company. Amended returns for a paid period are free. It also offers FRS 102 Section 1A accounts. Its pages do not state the charge for the second return of a long period. We did not find Tax Optimiser under its own name on HMRC’s Corporation Tax software supplier list, updated 12 October 2026. Tax Optimiser pricing →
Choose #Simple CompanyTax if you want unlimited filings and amendments for a company for one annual price, across every supported period, and the remaining-return and allocation workflows above.
HMRC’s free File your accounts and Company Tax Return service closed on 31 March 2026. From 1 April 2026 HMRC directs companies to commercial software, and paper returns are accepted only in limited cases. HMRC closure guidance →
FreeAgent includes CT600 and micro-entity accounts filing free for customers with an eligible NatWest, RBS, Ulster Bank or Mettle account. Most other suppliers charge a fee, and several let you prepare a return free first. With #Simple CompanyTax you can preview your CT600, computation and accounts without card details, then subscribe when you are ready to file.
#Simple CompanyTax does not prepare your underlying figures or give tax advice.
There is no single best CT600 software for every company. Match the software to your accounts type, where you need to file and how many filings you expect in a year. For eligible micro-entity and dormant companies with prepared figures, #Simple CompanyTax costs £10 +VAT or £25 +VAT per company, per year, with unlimited filings and amendments for that company, including both returns of a long period and other accounting periods. WeFile and Tax Optimiser also offer FRS 102 accounts. The #Simple CompanyTax comparison lists published prices and scope for 11 suppliers, checked 17 October 2026.
Of the published prices we checked on 17 October 2026, Tax Optimiser was lowest for one trading accounting period at £10 + VAT, and Taxley was lowest for a dormant return at £9.50 with no VAT to add. FreeAgent is free for some NatWest, RBS, Ulster Bank and Mettle customers. #Simple CompanyTax is £10 +VAT for a dormant company and £25 +VAT for a trading micro-entity, per year. That price includes unlimited filings and amendments for the company, including both returns of a long period and overdue earlier periods. Compare the total for all the filings you need.
WeFile charges £25 + VAT per trading filing and £15 + VAT per dormant filing, and charges each amendment again as a new submission. #Simple CompanyTax charges £25 +VAT per trading micro-entity and £10 +VAT per dormant company, per year, with unlimited filings and amendments for that company, including both returns of a long period. WeFile also supports FRS 102 accounts, which #Simple CompanyTax does not. WeFile prices checked 17 October 2026.
TinyTax Solo is £59 + VAT per year and its dormant plan is £20 + VAT per year. #Simple CompanyTax is £25 +VAT per trading micro-entity and £10 +VAT per dormant company, per year. Both file the CT600 to HMRC and accounts to Companies House, support long periods and amend returns first filed elsewhere. TinyTax prices checked 17 October 2026.
HMRC closed its free File your accounts and Company Tax Return service on 31 March 2026. From 1 April 2026 HMRC directs companies to commercial software, and paper returns are accepted only in limited cases. FreeAgent includes CT600 filing free for customers with an eligible NatWest, RBS, Ulster Bank or Mettle account. Most other suppliers charge a fee, and several let you prepare a return free before paying. #Simple CompanyTax lets you preview your documents without card details.
#Simple CompanyTax prepares the CIC accounts and CIC34 report as a package for you to upload to Companies House, and files the CT600 to HMRC. Tax Optimiser also prepares the CIC34 as a PDF for you to file. WeFile and TinyTax state that they file only the CT600 for a CIC, with the accounts filed separately. Checked 17 October 2026.
Often not. WeFile, TinyTax, Tax Optimiser, Taxpipe, CT600Filing and Easy Digital Filing publish prices plus VAT. Taxley states there is no VAT to add. #Simple CompanyTax shows £10 +VAT and £25 +VAT, with tax calculated at checkout. If your company cannot reclaim VAT, compare totals including VAT.
Supplier pages checked 17 October 2026.
Prices and features change. Check each supplier’s current terms before buying. This page is general information, not tax or accounting advice.