Rent split calculator.

Start from the total upfront cost, not the headline rent. Nigerian landlords take a year (sometimes two) in advance, and agent and agreement fees of about 10% each are usually added on top, plus a refundable caution deposit. Add all of it together first, then divide. Splitting equally is fine when the rooms are similar; when one person gets the master with its own bathroom, weight the shares so the split reflects what each person is actually getting.

Usually yes, and agreeing it before you move in prevents most flatmate arguments. A common approach is to weight the master bedroom at roughly a third more than a standard room and a small or box room at about a quarter less. This calculator uses those weights when you choose to split by room size — adjust the outcome between yourselves if your rooms do not fit the pattern.

Typically an agent fee (around 10% of the annual rent), an agreement or legal fee (around another 10%), a caution or security deposit that should be refundable when you leave, and in serviced buildings an annual service charge. On a ₦1,200,000 flat those extras can add ₦240,000 or more before you have paid a single month of living there, so include them before you agree a split.

Divide your share of the total by twelve and save that amount monthly. Because Nigerian rent falls due as one large annual payment, treating it as a monthly saving is the only realistic way to be ready for renewal instead of scrambling for a loan. The calculator shows this figure alongside your share.

Almost always, and the gap is larger than people expect because the fees are shared too. Two people splitting a ₦1,200,000 flat with standard fees each pay around ₦720,000 instead of ₦1,440,000 — the saving is roughly the cost of a modest self-contained flat on its own.