The number peaked at 5,800 in the first quarter of this year from just 20 in the second quarter of 2003, according to figures released in the Commons by Treasury Economic Secretary John Healey.
By July and August alone, payments had totalled 3,500, he told Liberal Democrat spokesman David Laws.
The extent of the faults failed to deter the Lib Dems from demanding that the Inland revenue take over the work of the disastrous Child Support Agency.
Committee expresses concern about costs to businesses and April 2018 implementation date
Drastically fewer offices for HMRC in the hope to reduce their running costs
An 80% increase in additional revenue for HMRC coincides with a crackdown on income tax avoidance
Laurence Field, the head of tax at national audit, tax and advisory firm Crowe Clark Whitehill outlines the 6 'unexpected items' regarding HMRC's Making Tax Digital plans