diff --git a/references/queries.md b/references/queries.md
index 61e77bd..6e268de 100644
--- a/references/queries.md
+++ b/references/queries.md
@@ -177,6 +177,74 @@ WHERE b.Status IN ('Open', 'Partial')
 ORDER BY b.DueDate
 ```
 
+## Year-End Tax Reports
+
+Date-parameterized queries for tax year reporting. Replace `{start_date}` and `{end_date}` with Unix timestamps (e.g., 2025: start=1735776000, end=1767312000).
+
+### Period Income Statement (P&L)
+
+Sums TransactionLines by Income/Expense account for a date range (Schedule C core data):
+
+```sql
+SELECT a.Code, a.Name, a.Type,
+  SUM(tl.Debit) as Debits, SUM(tl.Credit) as Credits
+FROM TransactionLines tl
+JOIN Transactions t ON tl.Transaction = t.id
+JOIN Accounts a ON tl.Account = a.id
+WHERE a.Type IN ('Income', 'Expense')
+  AND t.Date >= {start_date} AND t.Date < {end_date}
+GROUP BY a.Code, a.Name, a.Type
+ORDER BY a.Type DESC, a.Code
+```
+
+### Period Expense Detail
+
+All expense transactions with individual line items, grouped by account:
+
+```sql
+SELECT t.Date, a.Code, a.Name, t.Description, t.Reference, tl.Debit, tl.Credit
+FROM TransactionLines tl
+JOIN Transactions t ON tl.Transaction = t.id
+JOIN Accounts a ON tl.Account = a.id
+WHERE a.Type = 'Expense'
+  AND t.Date >= {start_date} AND t.Date < {end_date}
+ORDER BY a.Code, t.Date
+```
+
+### Vendor Payment Summary
+
+Total payments per vendor for 1099 determination ($600+ threshold):
+
+```sql
+SELECT v.Name as Vendor, COUNT(bp.id) as Payments, SUM(bp.Amount) as TotalPaid
+FROM BillPayments bp
+JOIN Bills b ON bp.Bill = b.id
+JOIN Vendors v ON b.Vendor = v.id
+WHERE bp.PaymentDate >= {start_date} AND bp.PaymentDate < {end_date}
+GROUP BY v.Name
+ORDER BY TotalPaid DESC
+```
+
+### Period General Ledger
+
+All transactions in the period with full detail:
+
+```sql
+SELECT t.Date, t.Description, t.Reference, t.Status,
+  a.Code, a.Name, tl.Debit, tl.Credit, tl.Memo
+FROM TransactionLines tl
+JOIN Transactions t ON tl.Transaction = t.id
+JOIN Accounts a ON tl.Account = a.id
+WHERE t.Date >= {start_date} AND t.Date < {end_date}
+ORDER BY t.Date, t.id, a.Code
+```
+
+### Point-in-Time Balance Sheet / Trial Balance
+
+Use `Accounts.Balance` (cumulative) for businesses that started tracking in Grist during the reporting year. If prior-year data exists, subtract beginning-of-year balances. See the [Financial Reports](#financial-reports) section for balance queries.
+
+> **Note**: If `tl.Transaction` JOIN fails due to the reserved word issue, fall back to `get_records` on TransactionLines + programmatic joining.
+
 ## Reconciliation Queries
 
 ### Cleared Balance for Bank Account