Agents and taxpayers can no longer pay cash or cheques of more than £10,000 via the Post Office, after Santander brought in a new temporary measure.
MPs will question Post Office directors on Tuesday about a procedure to hear claims by sub-postmasters that they were blamed for false accounting and fraud that was caused by IT errors.
Tax administration is all about rules. Rebecca Cave asks: What happens when the HMRC don’t abide by the rules?