Understanding Unpaid Loan Growth
A loan can grow even when no payment is made. Interest keeps accruing from the start date to the selected balance date. This calculator focuses on that narrow case. It ignores scheduled repayments and shows the cost of waiting.
Why Date Based Balance Matters
Many finance reviews need a balance on a specific day. A lender may ask for a payoff estimate. A borrower may compare settlement dates. An accountant may need an accrued figure for a report. Using the exact date helps avoid vague estimates.
Interest Accrual Basics
The main driver is the annual rate. The tool converts that rate into a year fraction. The year fraction depends on the day count method. Actual over 365 is common for simple estimates. Actual over 360 is often used in commercial lending. The 30 over 360 method smooths months into fixed lengths.
Compounding Choices
Compounding changes the balance faster than simple interest. Daily compounding applies interest very often. Monthly compounding is easier to explain on statements. Quarterly and annual compounding are useful for formal agreements. Continuous compounding is mostly used for analysis. Pick the method that matches the note or policy.
Fees And Penalties
Fees can make the unpaid balance much higher. An upfront fee may be added to principal. It may also remain separate. Monthly charges, daily penalties, and annual administration fees can be included. These settings help model a delayed account without payments.
Reading The Result
The result shows elapsed days, year fraction, interest, fees, and estimated balance. Review each line before using the final number. The balance is only as reliable as the inputs. Check the loan contract for exact rate language and day count rules.
Practical Use
Use this page for planning, reconciliation, and quick finance checks. It helps compare dates before a settlement or payoff. Export the result for records. Keep the CSV with spreadsheets. Save the PDF for sharing. For legal collections or regulated lending, verify the calculation with the lender or advisor before making decisions.
Limitations To Remember
The calculator does not replace a signed agreement. Some loans use special rounding, minimum interest, or legal caps. Taxes may also apply. Always keep source documents near the calculation screen for audits.