40/60 Condominium [repack] May 2026

Conversely, the 60% owner must never be made to feel like an ATM. The moment the 40% owner says, “Well, you own more, so you pay for the new couch,” the partnership fractures. Ownership percentage is not a credit card limit. The 40/60 condominium is not broken. It is not unfair. It is simply high-maintenance .

If the 60% owner pays 100% of the mortgage interest, they deduct 100% of the interest on their taxes. The 40% owner deducts nothing—unless they are actually paying 40% of the payments. 40/60 condominium

The successful 60/40 pairs create zones of absolute control. The 40% owner gets the primary bedroom. Or the parking spot. Or veto power over house guests. It is not about math. It is about dignity. Conversely, the 60% owner must never be made

By J. Hartwell

The 40% owner cannot force a sale in most TIC jurisdictions unless the co-ownership agreement includes a partition clause . Without it, the 40% owner is stuck owning a phantom asset they can’t live in and can’t sell. The 40/60 condominium is not broken

But here is the kicker: Under Section 121, a married couple can exclude $500,000 in gains. Unmarried co-owners? Each gets only $250,000 of exclusion on their share of the gain.

Partner B (the 40% owner) often argues: “I may own less, but I painted the walls. I fixed the leaky faucet. I waited for the plumber.”