All of it depends on where you live, diocese-wise. But it isn’t cut-and-dried like that, where one whips out the old checkbook or Visa card. In fact, if you could not afford all or part of the fee, it would be waived or taken in payments.
Your “nullification” made me chuckle. As others have explained, there really is no anullment, just a decree saying no valid marriage existed.
YOU SHOULD LOOK AT YOUR OWN DIOCESE’S WEB SITE UNDER “TRIBUNAL”.
To give you an idea only how it varies, here are the tribunal web sites from my home state:
http://www.dioceseofjoliet.org/tribunal/docs/Declaration%20of%20Nullity%20Proceedings_FULL.pdf (I read an offering of $***by the petitioner- That’s a true bargain!)
http://www.archchicago.org/departments/tribunal/faq.shtm (Quesiton 37- A big gap between Chicago and Joliet, but compare this to the cost of a civil divorce.)
http://www.rockforddiocese.org//ministries/Tribunal.htm (Go about 7/8 of the way down to “Fees” another bargain, and better than the Archdiocese!)
http://www.cdop.org/files/cdop_documents/Declaration%20of%20Nullity%20Procedures.pdf (A good deal- not as good as Joliet or Rockford, better than the Archdiocese.)
http://www.diobelle.org/resources/Tribunal.htm (This is the second best deal in the state!)
So, as you can see, it can vary from diocese to diocese, even in the same state.