A taxpayer has the right to pay all or a part of a tax claim made against him by the Department for the purpose of stopping the running of further interest, and the payment may not prejudice the right to pursue other administrative or judicial remedies provided by statute under section 1108(a) of the FC (72 P. S. § 1108(a)).
61 Pa. Code § 4.10
This section cited in 61 Pa. Code § 35.2 (relating to interest, additions, penalties, crimes and offenses).