Nadhim Zahawi paid a punishment arsenic portion of his taxation quality with HMRC, the BBC has been told.
The Conservative Party president is facing claims helium tried to debar taxation and had to wage it back. On Saturday helium confirmed helium did marque a outgo to HMRC to settee the issue.
It was antecedently reported the wealth helium paid included a penalty, but this had not been confirmed.
On Sunday evening, Mr Zahawi's aides insisted helium would proceed successful his role.
The BBC besides understands the taxation contented was resolved portion Mr Zahawi was chancellor betwixt July and September past twelvemonth - and the full magnitude paid is successful portion of what has been reported, of astir £5m.
Pressure has been increasing connected Mr Zahawi to springiness much details astir his finances - aft reports emerged this week helium had agreed to wage millions of pounds to HMRC to settee his taxation affairs.
The Guardian had reported that Mr Zahawi paid backmost taxation helium had owed, arsenic good arsenic a 30% penalty, with the full colony amounting to £4.8m.
Penalties tin beryllium applied by HMRC if taxation is not paid successful the close magnitude astatine the close time.
Mr Zahawi has not confirmed however overmuch the punishment amounted to, nor the full worth of the last colony with HMRC.
In a connection this weekend, Mr Zahawi claimed helium had made an mistake successful his taxes, but that it was "careless and not deliberate".
But Labour said determination were a full database of questions that inactive needed answers - and called connected him to people each his correspondence with HMRC "so we tin get the afloat picture". Labour besides said determination are questions implicit the timing.
Although the BBC has been told the contented with HMRC was resolved portion Mr Zahawi was chancellor, but it is inactive not wide erstwhile helium primitively became alert of it.
His allies assertion helium told the government's Propriety and Ethics Team - which is successful complaint of ensuring morals crossed authorities departments - astir it earlier his assignment arsenic chancellor.
And aft having go chancellor, Mr Zahawi did not question to situation HMRC's demands, but instructed his accountants to wage each of what they said was due, the BBC has been told.
On Sunday, elder Conservative Sir Iain Duncan Smith then joined the calls for much scrutiny, urging Mr Zahawi to merchandise "the implicit facts" and "get it each retired now, immoderate you person to bash and wide it up".
But helium defended Mr Zahawi, saying helium did not judge helium was "deceitful".
Foreign Secretary James Cleverly said it was for Mr Zahawi to determine "how overmuch item to enactment successful the nationalist domain".
The BBC was antecedently told connected Saturday that Prime Minister Rishi Sunak was satisfied with Mr Zahawi's relationship and has assurance successful him arsenic president of the Conservative Party.