All sharers in the scheme may not necessarily have contributed to the boat's expenses. The owner may bear all or part of the cost of certain items.
If there are employees, as distinct from sharers, the owner may
1) pay all the employees' share of their SS contributions
2) supply the boat with food and other provisions for the
trip and
3) pay for repair and replacement of the gear and
weatherproof clothing, such as oilskins.
The food and provisions for the owner are not wholly and
exclusively incurred for the business. The owner would incur such
costs in normal life.