- Home
- Tax Software
- 123 SA100 Solution
123 SA100 Solution
123 SA100 Solution · 2nd floor, 6 Oxford Street, Bolton, Greater Manchester, BL1 1RF, United Kingdom · founded 2016
Plans and prices
Multi Returns Package
1 partnership plus 2 personal returns, or any 3 self-assessment returns
Read 11 Oct 2026 · 123efiling.co.uk
MTD-ITSA Package (Single Business – Self-Employed or Landlord)
4 quarterly returns and a final declaration · 1 business
Read 11 Oct 2026 · 123efiling.co.uk
MTD ITSA/VAT 100
51 to 100 MTD ITSA/VAT returns; credits can be used for VAT and/or MTD Income Tax submissions
Read 11 Oct 2026 · 123efiling.co.uk
MTD ITSA/VAT 20
Up to 20 MTD ITSA/VAT returns; credits can be used for VAT and/or MTD Income Tax submissions
Read 11 Oct 2026 · 123efiling.co.uk
MTD ITSA/VAT 200
Above 100 MTD ITSA/VAT returns; credits can be used for VAT and/or MTD Income Tax submissions
Read 11 Oct 2026 · 123efiling.co.uk
MTD ITSA/VAT 50
21 to 50 MTD ITSA/VAT returns; credits can be used for VAT and/or MTD Income Tax submissions
Read 11 Oct 2026 · 123efiling.co.uk
MTD-VAT Package (Single Business)
4 VAT returns · 1 business
Read 11 Oct 2026 · 123efiling.co.uk
Assisted Package
1 personal or partnership return · return review by tax team · tax adviser assistance
Read 11 Oct 2026 · 123efiling.co.uk
Standard Package
1 personal or partnership return · supports non-resident and trust pages
Read 11 Oct 2026 · 123efiling.co.uk
On the record
- Assisted service
- The Assisted Package includes review by a member of the tax team, help with tax queries and technical support for validation issues.123efiling.co.uk · read 11 Oct 2026
- Data transfers
- The privacy policy says information may be transferred to countries including the United States, Russia, Japan, China and India.123efiling.co.uk · read 11 Oct 2026
- HMRC recognition
- The maker says its service is HMRC recognised for SA100 personal returns, SA800 partnership returns and MTD VAT.123efiling.co.uk · read 11 Oct 2026
- Integration
- The service submits returns online to HMRC and requires customers to have activated the relevant service in their HMRC online account.123efiling.co.uk · read 11 Oct 2026
- Mobile access
- web_and_mobile123efiling.co.uk · read 20 Sep 2026
- MTD workflow
- For MTD returns, users complete a spreadsheet template, upload it to the bridging software, then review and submit it to HMRC.123efiling.co.uk · read 11 Oct 2026
- Rental income
- Yes123efiling.co.uk · read 20 Sep 2026
- Return downloads
- Users can download, view, save and print their return or tax report.123efiling.co.uk · read 11 Oct 2026
- Security
- The privacy policy says personal information is stored on password- and firewall-protected servers and electronic financial transactions are protected by encryption technology.123efiling.co.uk · read 11 Oct 2026
- Self-employment support
- Yes123efiling.co.uk · read 20 Sep 2026
- Spreadsheet compatibility
- The MTD spreadsheet workflow supports Excel 2010 or newer and does not support Excel 2007.123efiling.co.uk · read 11 Oct 2026
- State filing
- none123efiling.co.uk · read 20 Sep 2026
- Support
- Free online chat support is available 9am–5pm UK time Monday to Friday, with extended hours until 10pm in January.123efiling.co.uk · read 11 Oct 2026
- Supported tax cases
- The Standard Package supports schedules including non-resident and trust pages, plus employed, self-employed, partnership, rental and foreign income.123efiling.co.uk · read 11 Oct 2026
- Web service
- The maker says there are no downloads required to use its forms.123efiling.co.uk · read 11 Oct 2026
- What it does
- The online service prepares and submits personal and partnership tax returns and VAT returns to HMRC.123efiling.co.uk · read 11 Oct 2026
- Who it serves
- The MTD ITSA page describes the intended users as self-employed individuals and landlords.123efiling.co.uk · read 11 Oct 2026
