In answer to your question, asked by quite a number of people, Bishop Geoffrey Robinson in his book "Marriage, Divorce and Nullity, A Guide to the Annulment Process in the Catholic Church" says:
"A tribunal has to employ staff, pay rent and generally run a large and busy office. Because of the common and false accusation that decrees of nullity can be bought, the Church is very sensitive about costs. No one is ever asked to pay the whole cost of the process. Every tribunal is subsidised from Church funds. In most tribunals two-thirds comes from the Church subsidy, only one-third from clients. From those who can afford to pay it, a payment is asked. If a person cannot pay that amount, less is asked. If a person cannot pay anything, nothing is asked. No one is ever refused a decree of nullity (annulment) because of an inability to pay. A rich person received no priority, either in the time the case will take or in the way the case is handled. Costs vary with the type of case. You will be informed of costs when you contact a tribunal." (Page 117)
Click here for the contact details of your local diocese Marriage Tribunal.
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14 October 2019