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Income Tax (ITSA) Bridging

Submit ITSA cumulative year-to-date updates to HMRC using your existing spreadsheets.

This is the ITSA part of our VAT and ITSA bridging tool. Use cumulative updates during the tax year, then use final declaration in the ITSA workspace when HMRC shows it as open.

You provide the figures. We submit updates to HMRC. You remain responsible for your data and submissions.

How It Works

  • Prepare your figures in your spreadsheet
  • Enter or upload your totals
  • Submit your cumulative update to HMRC and receive a submission receipt

Cumulative updates

  • Supports cumulative ITSA year-to-date updates
  • Supports updates only, not full tax returns

Important

  • We do not calculate or verify your Income Tax figures
  • You are responsible for your figures and submissions
  • This is independent bridging software and is not affiliated with HMRC

Who It Is For

  • Sole traders
  • Landlords

Frequently Asked Questions

  • What is an ITSA update? It is a cumulative update sent to HMRC during the tax year.
  • Does this replace my Self Assessment? No. This tool supports ITSA updates only, not full tax returns.
  • Does this tool support final declaration? Yes, when HMRC shows final declaration as open for that tax year.
  • Can I use this for both VAT and ITSA? Yes. ITSA.TAX supports VAT return submissions and ITSA updates.
  • Who is responsible for my figures? You are responsible for the accuracy and completeness of your figures and submissions.

Spreadsheet guidance

  • Use your existing spreadsheet and working papers
  • Keep updates cumulative across the tax year
  • Check your figures before you submit

Ready to submit ITSA updates?

Connect to HMRC with OAuth, submit from your spreadsheet workflow, and receive an HMRC receipt.