Tithes and offerings
        According to Matthew 23:23
          Jesus did not do away with tithing (These you ought to have done
          [justice, mercy, and faithfulness], without neglecting the others [tithing]).
          Also, there is good internal evidence that the early church tithed to
          support its ministers (1 Corinthians 9:13-14; Galatians 6:6). The question
          for New Testament house-church believers is not whether to tithe,
          but how? 
         
        There is no concept of salary
          in the New Testament. You might say the New Testament ministers worked
          on a contract-level basis. Much like a carpenter, once the task
          of building a church in one city was completed, they moved
          on to the next. If they stopped and stayed, it was to strength the church.
          However, Paul rarely did this. Usually he would move on, and then come
          back on a subsequent trip to elect elders and provide additional encouragement.
          Also, you will note that the New Testament apostles all had a vocation
          to fall back on (Peter and several of the other disciples were fishermen;
          Paul was a tentmaker). Even Jesus had a vocation. Note Pauls reason
          behind working as a tentmaker:
         
        
          Paul knew that those
            who neglect physical work soon become enfeebled. He desired to
            teach young ministers that by working with their hands, by bringing
            into exercise their muscles and sinews, they would become strong to
            endure the toils and privations that awaited them in the gospel field.
            And he realized that his own teachings would lack vitality and force
            if he did not keep all parts of the system properly exercised.
            --Ellen G. White, Acts of the Apostles, p. 352.
        
         
        So, if a house-church has
          no temple or priesthood (i.e. no building complex to support and no
          full time Pastor), What do they do with their tithes and offerings?
          The New Testament does not give clear instructions. One suggested approach
          is the following:
         
        
          Let each family set aside
            their tithes and offerings into their own special giving fund. The
            money can accrue there, stored up until a need in the congregation
            arises. Giving is done directly from giver to getter, with no middleman
            involved. In this way believers can give to church planters, missionaries,
            foreign orphanages, and the needy. The house-church does not pass
            an offering plate each week. It has no church bank account nor owns
            property. 
        
         
        The 
          pioneer Seventh-day Adventist Church practiced this approach initially
          (in the mid-1800s), but found it inequitable. That is, depending on
          the ministerial tour each minister would take, he might
          get significantly more or less than the other ministers. So they began
          to pool the money and hence began the need for an organization. Ellen
          G. White was in favor of an organization, but not too much of an organization.
         
        Today, the matter has gotten
          quite out of hand. It is estimated that as much as 82% of church revenues
          go toward buildings, staff and internal programs; only 18% goes to outreach.
          Who then is better able to advance the gospel, a modern-day church saddled
          with a mortgage payment, utilities, janitorial fees, building maintenance
          and pastoral salaries or a network of house-churches with no staff to
          pay and no buildings to maintain?