Guarantor Coverage Calculator

A signed guarantee is only as strong as the guarantor's capacity. This calculator translates guarantor finances into real coverage months.

Guarantor annual income

Liquid assets

Existing monthly debt

Monthly rent

Coverage months

4 yr 9 mo

Income coverage

3 mo

Liquid coverage

2 yr 3 mo

How the math works

Coverage = (net income after debt ÷ rent) × 12 + (liquid ÷ rent). Shows months covered if tenant defaults.

Require 24+ months total coverage for meaningful protection. Guarantors who barely cover the full lease have no margin — they default too when the tenant does.

How to Use

Enter guarantor gross income.
Enter liquid assets.
Enter existing debts.
Enter monthly rent.
Read coverage months and strength.

Frequently Asked Questions

Typical requirement?

Guarantor income 80-100x monthly rent annually, or liquid assets 12-24x monthly rent. Rule: guarantor's own financial capacity must absorb full lease in a pinch.

Corporate guarantor?

Request audited financials, 3-yr tax returns, and bank statements. Insist on personal guarantee from principals behind any thin-cap corporate entity.

Can I stack?

Multiple guarantors share but don't multiply coverage. Default case is pro-rata. Joint-and-several gives LL full claim against any — but expensive to enforce.

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.