I'm not sure exactly what it is that you want. Please define what you mean by the term.
The IRS stopped using a declaration control number (DCN) for efiled returns several years ago. Is someone like a mortgage loan company asking you for something?
Or are you referring to a payment confirmation number such as when paying taxes at EFTPS or IRS Direct Pay?
Or are you referring to a page called "Electronic Postmark" that TurboTax provides after efiling? It shows efile dates.
