The church has provided a Payment Request tool for Presidents of the organizations (Youth, Primary, Relief Society, Elders). This can be accessed on LCR or through the Member Tools app on your smart devices.
The instructions to help you are here. You will need your LDS account and be able to log in to see this.
Please read the section below under OTHERS if you lost one of your receipts for further instructions.
Go here and make sure you have enabled your account to receive an EFT e-transfer
For others not in those positions you can still submit electronically to your Unit or Stake clerk. Follow the steps below if you are using a computer: