If you can earn a safe after-tax return higher than the effective loan cost, keeping the loan can sometimes make sense. For high-rate personal loans, however, risk-free returns are often lower than the borrowing cost. Use after-tax, risk-adjusted numbers rather than comparing a guaranteed loan rate with optimistic stock-market returns.
Consider upcoming large expenses
School fees, medical treatment or relocation within the next year may justify keeping more cash even when foreclosure saves interest. Liquidity has value.
Check credit insurance
If insurance was bundled with the loan, ask what happens on early closure and whether any premium is refundable. Include that in net saving.
The best foreclosure decision balances three things: future interest, charges and liquidity. A spreadsheet that ignores emergency cash is financially incomplete.