As discussed here, you have the option to create a Manual Payment for checks. This will log the payment on the website AS IF it were paid for like an online payment through Paypal (the some code will be triggered as if it were a real payment).

In your Reporting / CSV Exports it will be noted as a manual purchase (instead of displaying the Paypal transaction ID). So for end-of-year accounting it is easy to separate which payments were real or not.

Regardless, your Treasurer or Accountant may decide to keep a separate ledger for check payments so the website reporting has no accounting of them.  In other words, if the website shows $156,025 in payments for 2020, you can reliably expect that amount shown in Paypal for 2020. Paypal will also give you an end of year total.

No matter what you decide, consistency is key.

So if you start adding Manual Payments for checks, keep doing it!  If you decide otherwise, don’t start mid-year. 

New members can be added or renewed without going through the Manual Payment system.