Where to I enter my balance due paid electronically to the IRS before I mail my return?

I calculated my return,  using Turbo Tax Deluxe Desktop and had a balance due.   I went to the IRS web site and made that payment.   Do I now need to enter that before I file so that my return shows balance due zero?   If so, where/how?   Or do I file showing my balance due and the IRS will match that up with the payment I sent today?