Is it a sin to be a cheapskate?
What did Jesus say about storing up earthly goods? Of course it is moral to support yourself and your family, but, God gave you everything you have. Is it sinful to be stingy with the Church? I think we all know the answer to that.
Also, many complain that the parish does not have XYZ program, has a charge for RE/CCD or VBS, has less than modern facilities, no state of the art parish center, like first Baptist up the street. Well, when Catholics donate at the levels of their Protestant neighbors the parishes can then afford all of those luxuries.
Ask your parish finance committee about ways you can help your parish.
In the US, Diocesan priests are paid a very small salary in an amount that is determined by the Diocese. They are also provided an apartment or small house, health insurance, the basic utilities are paid and they likely get a mileage allowance. If they are sent to a very small, very rural, very poor parish their salary may be paid a small amount by a Missions priest fund at the Diocese. Those Mission parishes, if there is one near you, should be considered when you want to have a Mass said because often the stipend from Masses is the only way that priest can afford luxuries like gas or new shoes.
The priest has to pay for their car and insurance, food and clothes and shampoo and cable and all of the other expenses you have. Many priests give back to their parishes, they are generous with charitable giving.
This is simply the average Diocesan priest. Priests from various orders may have no salary at all and rely on the donations from others to keep the order running.
When you think of charities, remember to consider your Diocese funds like:
Retired Priests and Religious Fund
Seminarian Fund
Mission Parishes Fund
On Father’s Day or Christmas, you might want to give your priest a small gift card to a place that sells gasoline or tires (around here that is Walmart or Sams).