An IRA Contribution is any new money added to an individual retirement account (IRA). When an investor adds new retirement funds to their IRA, this would be considered a contribution, which should count towards the annual contribution limits established by the IRS.
As it relates to Fundrise, any contributions to an IRA on the platform would come directly from an associated bank account.
Please keep in mind, a contribution is not the same as a rollover or transfer of existing retirement funds.