TaxKey vs TaxSlayer
TaxKey
taxkey.co.ukTaxSlayer
taxslayer.comSide by side
| Figure | TaxKey | TaxSlayer |
|---|---|---|
| Price from | £8.25/mo | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Plans published | 3 | 8 |
| Spec score · Tax Software | 7.1 (#119) | 9.0 (#9) |
| Spec score · Personal Tax Software | 7.1 (#106) | 9.0 (#11) |
| Free plan | No | Yes |
| Investment income | Yes | Yes |
| Purpose | TaxKey automates UK investor tax reporting, calculations, and submissions to HMRC. | TaxSlayer provides forms, calculations, and resources to prepare and electronically file federal and state tax returns. |
| Support | The site directs users to [email protected] and offers priority support and account management on Accountant Pro. | TaxSlayer offers year-round phone and email support for all package options; chat is available to Premium and Self-Employed users during operating hours. |
Plans
TaxKey
- Individual Self Assessment£99 a year
- Accountant ProPriced on request
- White Label & APIPriced on request
TaxSlayer
- Simply FreeFree
- ClassicPriced on request
- PremiumPriced on request
- Self-EmployedPriced on request
- Simply FreeFree
- Classic$44.99, paid once
- Premium$64.99, paid once
- Self-Employed$74.99, paid once
In their own words
TaxSlayer
TaxSlayer provides forms, calculations, and resources for preparing and electronically filing federal and state tax returns. Its listed capabilities include self-employment, investment, and rental income, plus audit support. Paid products support the IRS forms, credits, and deductions covered by the software, though business and other specialized situations may not be included. Simply Free is limited to eligible taxpayers, with eligibility based on age, income, credits, and deductions; it includes one federal return and one state return and costs nothing. Users can prepare and file federal and state taxes through the mobile app on a smartphone or tablet, as well as on the web. W-2 and 1099 import is listed, and support instructions describe uploading a PDF copy of a W-2. TaxSlayer lists AES-256 encryption for data in transit and at rest, multi-layer authentication, and a dedicated cybersecurity team. Phone and email support is offered year-round for all packages.