Your credit score is based on your payment history, outstanding debt, length of time you've had credit, types of credit you now have and the number of inquiries.

FORBES: Magazine Article

In effect what the Chancellor has said is that if an individual cannot afford to pay their tax any other way, the Revenue will be happy to collect the outstanding liability by credit card payment.

BBC: Money Talk

Payment in full of all outstanding liabilities is usually required during the amnesty period--most programs do not offer installment plan options.

FORBES