How can I make a payment to the IRS?

You have several options to make payments to the IRS as follows;

EFTPS: The Electronic Federal Tax Payment System (no fee):https://www.irs.gov/payments/eftps-the-electronic-federal-tax-payment-system

Direct Pay with Bank Account (no fee): - https://www.irs.gov/payments/direct-pay

Pay Your Taxes by Debit or Credit Card (Credit Card not encouraged) (fee): https://www.irs.gov/payments/pay-taxes-by-credit-or-debit-card