Yes. You must pay the balance due on or before April 15*. Late-filed payments may be subject to statutory penalty, interest and costs.
Archivo electrónico de Keystone lets you schedule your payment from your bank account on or before April 15*. You may also pay by credit card.
Note: First Data Corp. charges a 2.5% bank processing fee for all credit card transactions, with a minimum fee of $0.50 per transaction.
* Tax Day deadline is April 15 unless the date falls on a weekend or holiday, then it is the next business day.