With a one-year subscription to GainsKeeper, individual investors can create a Schedule D for tax years 1999 forward and Form 8949 for tax years 2011 forward. If trading activity exceeds the number of trades included in the subscription, additional trade buckets may be purchased at any time. Purchasing trade buckets does not extend the subscription's expiration date. However, unused trade buckets can be carried over when renewing your subscription as long as the subscription is renewed before it expires.