Here are some options Immigration Planner put together to help sponsors meet their financial obligations.
Streamlined
There is only one applicant and the sponsor meets the financial obligation with a U.S.-based job as demonstrated by U.S.-issued W-2 forms (wage and tax statements).
Assets-booster
The sponsor uses his or her assets to bridge the gap between his or her income and the financial obligation. $15,000 of assets is the equivalent of $3,000 of income ($5,000 if the sponsor is a U.S. citizen and the applicant his or her spouse or children 17 years old or younger)
Internal-booster
The sponsor asks household members to join him or her in sponsoring the applicant by combining their income.
External-booster
The sponsor asks a person who is not a household member, the joint sponsor, to join him or her in sponsoring the applicant.