diff --git a/frontend/src/views/loans/LoansView.vue b/frontend/src/views/loans/LoansView.vue
index 8bf68f0..8310a3b 100644
--- a/frontend/src/views/loans/LoansView.vue
+++ b/frontend/src/views/loans/LoansView.vue
@@ -104,7 +104,7 @@
- Amounts shown are estimates based on standard monthly compounding. Actual values may differ slightly due to your lender's rounding practices.
+ Amounts shown are estimates using {{ isDailyAccrualAccount ? 'daily interest accrual' : 'standard monthly compounding' }}. Actual values may differ slightly due to your lender's rounding practices.
@@ -268,12 +268,18 @@ const snackbar = ref(false)
const snackbarText = ref('')
const snackbarColor = ref('success')
-const loanAccountTypes = ['AutoLoan', 'PersonalLoan', 'Mortgage']
+const loanAccountTypes = ['AutoLoan', 'PersonalLoan', 'Mortgage', 'LineOfCredit']
+const dailyAccrualTypes = ['AutoLoan', 'LineOfCredit']
const loanAccounts = computed(() =>
accountsStore.accounts.filter(a => a.hasLoanDetail || loanAccountTypes.includes(a.type))
)
+const isDailyAccrualAccount = computed(() => {
+ const account = accountsStore.accounts.find(a => a.id === props.id)
+ return account ? dailyAccrualTypes.includes(account.type) : false
+})
+
const amortHeaders = [
{ title: '#', key: 'paymentNumber', width: '60px' },
{ title: 'Date', key: 'paymentDate', width: '110px' },
diff --git a/src/Purrse.Api/Services/LoanService.cs b/src/Purrse.Api/Services/LoanService.cs
index 071326e..d1aca58 100644
--- a/src/Purrse.Api/Services/LoanService.cs
+++ b/src/Purrse.Api/Services/LoanService.cs
@@ -49,7 +49,7 @@ public class LoanService : ILoanService
ExtraPayment = request.ExtraPayment
};
- var entries = GenerateAmortizationSchedule(loanDetail);
+ var entries = GenerateAmortizationSchedule(loanDetail, account.Type);
loanDetail.AmortizationEntries = entries;
_db.LoanDetails.Add(loanDetail);
@@ -82,7 +82,7 @@ public class LoanService : ILoanService
l.EscrowAmount = request.EscrowAmount;
l.ExtraPayment = request.ExtraPayment;
- var entries = GenerateAmortizationSchedule(l);
+ var entries = GenerateAmortizationSchedule(l, account.Type);
foreach (var entry in entries)
{
entry.LoanDetailId = l.Id;
@@ -118,11 +118,14 @@ public class LoanService : ILoanService
// Build new schedule with extra payments
var balance = Math.Abs(account.Balance);
+ var useDailyAccrual = UseDailyAccrual(account.Type);
var monthlyRate = l.InterestRate / 100m / 12m;
+ var dailyRate = l.InterestRate / 100m / 365m;
var extraMonthly = request.ExtraMonthlyPayment ?? 0;
var basePayment = l.MonthlyPayment - (l.EscrowAmount ?? 0);
var now = DateTime.UtcNow;
var startDate = new DateTime(now.Year, now.Month, l.OriginationDate.Day, 0, 0, 0, DateTimeKind.Utc);
+ var previousDate = startDate;
var newEntries = new List();
int paymentNum = 0;
@@ -139,12 +142,15 @@ public class LoanService : ILoanService
paymentNum++;
var paymentDate = startDate.AddMonths(paymentNum);
- var interest = Math.Round(balance * monthlyRate, 2);
+ var interest = useDailyAccrual
+ ? Math.Round(balance * dailyRate * (paymentDate - previousDate).Days, 2)
+ : Math.Round(balance * monthlyRate, 2);
var principal = Math.Min(basePayment + extraMonthly - interest, balance);
if (principal < 0) principal = 0;
balance -= principal;
if (balance < 0.01m) balance = 0;
+ previousDate = paymentDate;
newEntries.Add(new AmortizationEntryResponse(
paymentNum, paymentDate, principal + interest + (l.EscrowAmount ?? 0),
@@ -181,21 +187,30 @@ public class LoanService : ILoanService
return new LoanDefaultsResponse(0, interestRate, termMonths, hasSyncData);
}
- private static List GenerateAmortizationSchedule(LoanDetail loan)
+ private static bool UseDailyAccrual(AccountType type) =>
+ type is AccountType.AutoLoan or AccountType.LineOfCredit;
+
+ private static List GenerateAmortizationSchedule(LoanDetail loan, AccountType accountType)
{
var entries = new List();
var balance = loan.OriginalBalance;
+ var useDailyAccrual = UseDailyAccrual(accountType);
var monthlyRate = loan.InterestRate / 100m / 12m;
+ var dailyRate = loan.InterestRate / 100m / 365m;
var payment = loan.MonthlyPayment - (loan.EscrowAmount ?? 0);
var extra = loan.ExtraPayment ?? 0;
+ var previousDate = loan.OriginationDate.AddMonths(-1);
for (int i = 1; i <= loan.TermMonths && balance > 0; i++)
{
var paymentDate = loan.OriginationDate.AddMonths(i - 1);
- var interest = Math.Round(balance * monthlyRate, 2);
+ var interest = useDailyAccrual
+ ? Math.Round(balance * dailyRate * (paymentDate - previousDate).Days, 2)
+ : Math.Round(balance * monthlyRate, 2);
var principal = Math.Min(payment + extra - interest, balance);
balance -= principal;
if (balance < 0.01m) balance = 0;
+ previousDate = paymentDate;
entries.Add(new AmortizationEntry
{