Renewal Price Elasticity Calculator

Too-high renewal bumps drive turnover. Too-low leaves money on the table. This calculator finds optimal lift.

Baseline renewal rate %

Baseline rent bump %

Proposed rent bump %

Elasticity coefficient

Expected renewal rate

58.0%

Rate drop

-4.00%

Rent × renewal (relative)

1.4

How the math works

Rate drop = elasticity × bump delta. Decision ratio > 1 = proposed bump is accretive.

Test bumps in 1-2% increments and track renewal rates over 90 days. Don't chase single-renewal wins — optimize portfolio-level NOI growth, not max rent on each unit.

How to Use

Enter baseline renewal rate.
Enter baseline rent increase %.
Enter proposed rent increase %.
Enter elasticity coefficient.
Read expected renewal rate.

Frequently Asked Questions

What's elasticity?

How much renewal rate falls per % of rent bump. Typically -1.5 to -3.0 in multifamily. Elasticity > -1 = inelastic (bump won't hurt). Elasticity < -3 = highly sensitive.

Calibrating?

Run A/B test: 4% bump vs 6% bump across comparable tenants. Measure renewal rate difference. Over 50 renewals, result is statistically meaningful.

Optimal?

Maximize (rent bump × renewal rate). Usually a sweet spot at 3-5% bump depending on market. Above, renewal crashes; below, money left on the table.

How often should I rerun this?

Rerun this calculator whenever inputs change materially — new rent roll data, rate moves, loan balance updates, or quarterly operating data. For active deals, monthly refresh is typical. For stabilized assets under monitoring, quarterly is fine. Treat the output as a decision tool, not a one-time answer — market conditions evolve and so should your analysis.