When receiving the plant, do not repot immediately but wait at least 6-8 months or if the roots are beginning to get crowded and growing through the drainage holes.
Repot in the spring, using a 2" bigger pot. (Too big of a pot could cause the soil to dry slower, which is not helpful.) Use a well-draining indoor potting mix with perlite to help with drainage.
Water your plant in the old pot before transferring over and let it sit an hour.
Place a piece of screening at the bottom of the container over the drainage hole to secure the soil and allow it to drain. Add soil to the bottom to elevate the rhizomes that mimic potatoes. Lift the plant and release the roots against the existing planter. Use a clean knife or garden trowel to wedge between the pot and the soil to loosen.
Inspect the rhizomes. Notice if there are any dead or rot and trim off with sterile pruners. If the plant is rootbound, separate the roots and rhizomes if you wish to make more plants. If not, remove any weak leaves off the plant to help revitalize its energy.
Ensure the plant is sitting about 1" below the edge of the pot to avoid water spillage. Add more soil and backfill around the sides by tamping down. Fill up to the soil line but not over.
Water thoroughly, leaving the soil damp but not soggy. If settling occurs, add more soil.