Athennian vs TaxCalc
Athennian
athennian.comTaxCalc
taxcalc.comSide by side
| Figure | Athennian | TaxCalc |
|---|---|---|
| Price from | $2,083.33/mo | £3.50/mo |
| Free plan | — | — |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | — |
| Plans published | 3 | 5 |
| Spec score · Entity Management | 7.8 (#3) | 7.9 (#2) |
| Spec score · Company Secretarial Software | 7.8 (#6) | 7.9 (#5) |
| Spec score · Legal Entity Management Software | 7.8 (#10) | 7.9 (#8) |
| Founded | 2016 | 1983 |
| Integrations | The product page lists iManage, Office 365, Google Drive, FileForms, DocuSign and Slack integrations. | Accounts Production imports year-end trial balances from Xero, QuickBooks or FreeAgent and can export journals and adjustments back. |
| Intended users | The pricing page positions Essentials for smaller teams, Professional for mid-sized teams and Enterprise for global teams with complex or regulated entities. | TaxCalc says its products serve accountancy practices, in-house finance teams, sole traders and individuals across the UK. |
| Product | Athennian is a cloud-based platform for proactive entity management that connects legal, finance, tax and compliance teams. | TaxCalc is a UK accounting software platform covering compliance, client management, tax and practice operations. |
| Support | Athennian says it provides training and ongoing support from its customer success team; premium support is a listed Enterprise add-on. | The company says every licence includes unlimited UK-based support from accountancy-trained specialists by phone and email, Monday to Friday. |
Plans
Athennian
- Essentials$25,000 a year
- EnterprisePriced on request
- ProfessionalPriced on request
TaxCalc
- TaxCalc 2026 Individual 6£42 a year
- Engager Practice Management — up to 5 clients£9 a month
- Self Assessment tax software£42, paid once
- Accounts Production 12£164 a year
- Individual 12£187 a year
In their own words
TaxCalc
TaxCalc is a UK accounting software platform for tax compliance, client management, and practice operations. Its products prepare personal, partnership, trust, and company tax returns, as well as statutory accounts. For Self Assessment, SimpleStep guides users through relevant sections, with an option to switch to HMRC-style forms. Calculations update in real time, and Check & Finish reviews a return before submission. Tax products submit directly to HMRC, while Accounts Production files statutory accounts to Companies House. Accounts Production can import year-end trial balances from Xero, QuickBooks, or FreeAgent and export journals and adjustments; integrations differ between products. TaxCalc supports self-employment and investment income, but does not include state filing. It runs on Linux, macOS, and Windows, with mobile access limited to the web. Pricing is paid, from £42, with a free trial and no free plan. TaxCalc says each licence includes unlimited weekday phone and email support from UK-based, accountancy-trained specialists.