Yes, you should pay at the IRS website. If it will be just a few days, you do not necessarily have to set up a Payment Plan- but if you may need more time, you can apply for the free short-term plan. (NOTE: Penalties and interest will apply regardless.)
Short-term Payment Plan (180 days or less)
- $0 setup fee
- Plus accrued penalties and interest until the balance is paid in full
After applying for a short-term payment plan, you can pay the amount owed directly from your checking or savings account (Direct Pay) or by check, money order or debit/credit card.
(Fees apply when paying by card.)
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