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Welcome to the TaxCalc Knowledge Base

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TaxCalc MTD Solution

The Making Tax Digital solution.

Whether it's full bookkeeping or a box of records TaxCalc MTD has the solution.

When tax goes digital, be MTD-ready for anything.

For Accountancy Practices and Finance Professionals

We've created TaxCalc MTD, an integrated, flexible end-to-end accountancy solution.

Find out more

For the self-employed, landlords, partnerships and trusts with a trade

We've designed TaxCalc MTD CashBook, a beautifully-simple record-keeping solution.

Find out more

Remote Connection

This service will only work if you are already in contact with TaxCalc Support. It enables us to help you more effectively with certain problems.

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HMRC Status
Companies House Status

There are no known issues affecting the HMRC of Companies House filing services.

If you are having problems filing online, please check our knowledge base above.

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Support: 0345 5190 882

Support hours

Support opening hours are from 9.30am to 5.00pm Monday to Thursday, and 9.00am to 5.00pm Friday, excluding UK bank holidays.


Acorah Software Products Limited
Rubra One
Mulberry Business Park
RG41 2GY

Throughout the year we normally answer calls within 60 seconds,
though this may be slightly longer in January.
Also we usually respond to emails within 1 working day.