Big Brothers Big Sisters of P.E.I. says Canada Post's postal rate increase will have a big impact on the organization.

Among many changes Canada Post announced earlier this week, was the news that rates will be rising on March 31 from 63 cents to a dollar for a single stamp or 85 cents if bought in a pack.

The group mailing costs will jump about $3,500, said Heather Doran, the organization's communication and development manager.

These are some costs that we just can't get around. People need to get their tax receipts. And yes, we'll have to find a way to find $3,500 in our budget," said Doran.

"You know, we can send a little bit less through Bowl for Kids Sake, but we still have to send those tax receipts. We still have to send the Dream Cottage brochures, and so either we will have to cut back in other areas, or we will have to fundraise more."

The organization plans to contact Canada Post and government officials to tell them what the changes will mean for them, said Doran.