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HELOC Interest-Only Calculator

Educational estimate · Not financial advice

SF
Nobalio Editorial Team
Reviewed for clarity and educational usefulness. Last updated: June 2026.

Estimate a HELOC interest-only payment from balance and annual rate.

Enter your numbers and calculate.
On this pageHow to use itFormula and assumptionsExampleLimitationsRelated resources

How to use this calculator

Enter the balance and rate to estimate an interest-only payment. Principal repayment would be additional.

Formula and assumptions

Monthly interest-only payment equals balance times annual rate divided by 12.

Example

A $50,000 balance at 8.5% would have an estimated monthly interest-only amount before principal repayment.

Limitations

This calculator is for general education only. It is not financial, legal, tax, credit, mortgage, or investment advice.

Calculator FAQ

Are the results exact?

No. Results are estimates based on the inputs and simplified assumptions.

What should I do after calculating?

Use the result to compare scenarios, then verify current rates, fees, taxes, and terms before making decisions.