diff --git a/src/atoms/tableScope/columns.test.ts b/src/atoms/tableScope/columnActions.test.ts
similarity index 100%
rename from src/atoms/tableScope/columns.test.ts
rename to src/atoms/tableScope/columnActions.test.ts
diff --git a/src/atoms/tableScope/columns.ts b/src/atoms/tableScope/columnActions.ts
similarity index 100%
rename from src/atoms/tableScope/columns.ts
rename to src/atoms/tableScope/columnActions.ts
diff --git a/src/atoms/tableScope/index.ts b/src/atoms/tableScope/index.ts
index 29afc6ef..38c4ea03 100644
--- a/src/atoms/tableScope/index.ts
+++ b/src/atoms/tableScope/index.ts
@@ -2,4 +2,5 @@
 export const tableScope = Symbol("tableScope");
 
 export * from "./table";
-export * from "./columns";
+export * from "./columnActions";
+export * from "./rowActions";
diff --git a/src/atoms/tableScope/rowActions.test.ts b/src/atoms/tableScope/rowActions.test.ts
new file mode 100644
index 00000000..879b8478
--- /dev/null
+++ b/src/atoms/tableScope/rowActions.test.ts
@@ -0,0 +1,176 @@
+import { useCallback } from "react";
+import { renderHook, act } from "@testing-library/react";
+import { useAtomValue, useSetAtom } from "jotai";
+import { useAtomCallback } from "jotai/utils";
+import { find, findIndex, mergeWith, isArray } from "lodash-es";
+
+import {
+  tableScope,
+  tableSettingsAtom,
+  tableRowsDbAtom,
+  tableRowsLocalAtom,
+  _updateRowDbAtom,
+  _deleteRowDbAtom,
+  deleteRowAtom,
+} from "@src/atoms/tableScope";
+import { TableRow } from "@src/types/table";
+import { tableRowsAtom } from "./table";
+
+const TEST_COLLECTION = "_testing";
+
+const initRows = (initialRowsDb?: TableRow[], initialRowsLocal?: TableRow[]) =>
+  renderHook(async () => {
+    const setTableSettings = useSetAtom(tableSettingsAtom, tableScope);
+    setTableSettings({
+      id: TEST_COLLECTION,
+      name: TEST_COLLECTION,
+      collection: TEST_COLLECTION,
+      roles: ["ADMIN"],
+      section: "",
+      tableType: "primaryCollection",
+    });
+
+    const setRowsDb = useSetAtom(tableRowsDbAtom, tableScope);
+    setRowsDb([...(initialRowsDb ?? [])]);
+    const readRowsDb = useAtomCallback(
+      useCallback((get) => get(tableRowsDbAtom), []),
+      tableScope
+    );
+
+    const setRowsLocal = useSetAtom(tableRowsLocalAtom, tableScope);
+    setRowsLocal({ type: "set", rows: [...(initialRowsLocal ?? [])] });
+
+    const setUpdateRowDb = useSetAtom(_updateRowDbAtom, tableScope);
+    setUpdateRowDb(() => async (path: string, update: Partial<TableRow>) => {
+      const rows = [...(await readRowsDb())];
+      const index = findIndex(rows, ["_rowy_ref.id", path]);
+      // Append if not found
+      if (index === -1) {
+        setRowsDb((rows) => [
+          ...rows,
+          { ...update, _rowy_ref: { id: path, path: "TEST_COLLECTION" } },
+        ]);
+      } else {
+        rows[index] = mergeWith(
+          rows[index],
+          update,
+          // If proeprty to be merged is array, overwrite the array entirely.
+          // This matches Firestore set with merge behaviour
+          (objValue, srcValue) => (isArray(objValue) ? srcValue : undefined)
+        );
+      }
+      setRowsDb(rows);
+      return Promise.resolve();
+    });
+
+    const setDeleteRowDb = useSetAtom(_deleteRowDbAtom, tableScope);
+    setDeleteRowDb(() => async (path: string) => {
+      const rows = await readRowsDb();
+      const index = findIndex(rows, ["_rowy_ref.path", path]);
+      if (index > -1) {
+        rows.splice(index, 1);
+        setRowsDb(rows);
+      }
+      return Promise.resolve();
+    });
+  });
+
+const GENERATED_ROWS_LENGTH = 10;
+const generatedRows = new Array(GENERATED_ROWS_LENGTH)
+  .fill(undefined)
+  .map((_, i) => ({
+    _rowy_ref: { id: `row${i}`, path: TEST_COLLECTION + "/row" + i },
+    index: i,
+  }));
+const generatedRowsLocal = new Array(GENERATED_ROWS_LENGTH)
+  .fill(undefined)
+  .map((_, i) => ({
+    _rowy_ref: { id: `rowLocal${i}`, path: TEST_COLLECTION + "/rowLocal" + i },
+    index: i,
+  }));
+
+describe("deleteRow", () => {
+  test("deletes a single row", async () => {
+    initRows(generatedRows);
+    const {
+      result: { current: deleteRow },
+    } = renderHook(() => useSetAtom(deleteRowAtom, tableScope));
+    expect(deleteRow).toBeDefined();
+
+    await act(() => deleteRow(TEST_COLLECTION + "/row2"));
+
+    const {
+      result: { current: tableRows },
+    } = renderHook(() => useAtomValue(tableRowsAtom, tableScope));
+    expect(tableRows).toHaveLength(GENERATED_ROWS_LENGTH - 1);
+    expect(find(tableRows, ["_rowy_ref.id", "row2"])).toBeFalsy();
+  });
+
+  test("deletes a single local row", async () => {
+    initRows(generatedRows, generatedRowsLocal);
+    const {
+      result: { current: deleteRow },
+    } = renderHook(() => useSetAtom(deleteRowAtom, tableScope));
+    expect(deleteRow).toBeDefined();
+
+    await act(() => deleteRow(TEST_COLLECTION + "/rowLocal2"));
+
+    const {
+      result: { current: tableRows },
+    } = renderHook(() => useAtomValue(tableRowsAtom, tableScope));
+    expect(tableRows).toHaveLength(GENERATED_ROWS_LENGTH * 2 - 1);
+    expect(find(tableRows, ["_rowy_ref.id", "rowLocal2"])).toBeFalsy();
+  });
+
+  test("deletes multiple rows", async () => {
+    initRows(generatedRows);
+    const {
+      result: { current: deleteRow },
+    } = renderHook(() => useSetAtom(deleteRowAtom, tableScope));
+    expect(deleteRow).toBeDefined();
+
+    await act(() =>
+      deleteRow(
+        ["row1", "row2", "row8"].map((id) => TEST_COLLECTION + "/" + id)
+      )
+    );
+
+    const {
+      result: { current: tableRows },
+    } = renderHook(() => useAtomValue(tableRowsAtom, tableScope));
+    expect(tableRows).toHaveLength(GENERATED_ROWS_LENGTH - 3);
+    expect(find(tableRows, ["_rowy_ref.id", "row1"])).toBeFalsy();
+    expect(find(tableRows, ["_rowy_ref.id", "row2"])).toBeFalsy();
+    expect(find(tableRows, ["_rowy_ref.id", "row8"])).toBeFalsy();
+  });
+
+  test("deletes all rows", async () => {
+    initRows(generatedRows);
+    const {
+      result: { current: deleteRow },
+    } = renderHook(() => useSetAtom(deleteRowAtom, tableScope));
+    expect(deleteRow).toBeDefined();
+
+    await act(() => deleteRow(generatedRows.map((row) => row._rowy_ref.path)));
+
+    const {
+      result: { current: tableRows },
+    } = renderHook(() => useAtomValue(tableRowsAtom, tableScope));
+    expect(tableRows).toHaveLength(0);
+  });
+
+  test("doesn't delete a row that doesn't exist", async () => {
+    initRows(generatedRows);
+    const {
+      result: { current: deleteRow },
+    } = renderHook(() => useSetAtom(deleteRowAtom, tableScope));
+    expect(deleteRow).toBeDefined();
+
+    await act(() => deleteRow("nonExistent"));
+
+    const {
+      result: { current: tableRows },
+    } = renderHook(() => useAtomValue(tableRowsAtom, tableScope));
+    expect(tableRows).toHaveLength(GENERATED_ROWS_LENGTH);
+  });
+});
diff --git a/src/atoms/tableScope/rowActions.ts b/src/atoms/tableScope/rowActions.ts
new file mode 100644
index 00000000..91cafffe
--- /dev/null
+++ b/src/atoms/tableScope/rowActions.ts
@@ -0,0 +1,157 @@
+import { atom } from "jotai";
+import { find } from "lodash-es";
+
+import { currentUserAtom } from "@src/atoms/globalScope";
+import {
+  auditChangeAtom,
+  tableSettingsAtom,
+  tableFiltersAtom,
+  tableRowsLocalAtom,
+  _updateRowDbAtom,
+  _deleteRowDbAtom,
+} from "./table";
+import { tableColumnsOrderedAtom } from "./columnActions";
+import { TableRow } from "@src/types/table";
+import { rowyUser } from "@src/utils/table";
+
+export interface IAddRowOptions {
+  row: TableRow | TableRow[];
+  ignoreRequiredFields?: boolean;
+}
+
+/**
+ * Adds a row or an array of rows.
+ * Adds to rowsDb if it has no missing required fields,
+ * otherwise to or rowsLocal.
+ * @param options - {@link IAddRowOptions}
+ *
+ * @example Basic usage:
+ * ```
+ * const addRow = useSetAtom(addRowAtom, tableScope);
+ * addRow({ row: [ {...}, ... ] });
+ * ```
+ */
+export const addRowAtom = atom(
+  null,
+  async (get, set, { row, ignoreRequiredFields }: IAddRowOptions) => {
+    const updateRowDb = get(_updateRowDbAtom);
+    if (!updateRowDb) throw new Error("Cannot write to database");
+    const tableSettings = get(tableSettingsAtom);
+    if (!tableSettings) throw new Error("Cannot read table settings");
+    const currentUser = get(currentUserAtom);
+    if (!currentUser) throw new Error("Cannot read current user");
+    const auditChange = get(auditChangeAtom);
+    const tableFilters = get(tableFiltersAtom);
+    const tableColumnsOrdered = get(tableColumnsOrderedAtom);
+
+    const _addSingleRowAndAudit = async (row: TableRow) => {
+      // Store initial values to be written
+      const initialValues: TableRow = { _rowy_ref: row._rowy_ref };
+
+      // Store tableFilters that mean this row should be out of order
+      const outOfOrderFilters = new Set(
+        tableFilters.map((filter) => filter.key)
+      );
+      // Set initial values based on table filters, so rowsDb will include this.
+      // If we can set the value for a filter key, remove that key from outOfOrderFilters
+      for (const filter of tableFilters) {
+        if (filter.operator === "==") {
+          initialValues[filter.key] = filter.value;
+          outOfOrderFilters.delete(filter.key);
+        } else if (filter.operator === "array-contains") {
+          initialValues[filter.key] = [filter.value];
+          outOfOrderFilters.delete(filter.key);
+        }
+      }
+
+      // Set initial values based on default values
+      for (const column of tableColumnsOrdered) {
+        if (column.config?.defaultValue?.type === "static")
+          initialValues[column.key] = column.config.defaultValue.value!;
+        else if (column.config?.defaultValue?.type === "null")
+          initialValues[column.key] = null;
+      }
+
+      // Write audit fields if not explicitly disabled
+      if (tableSettings.audit !== false) {
+        const auditValue = rowyUser(currentUser);
+        initialValues[tableSettings.auditFieldCreatedBy || "_createdBy"] =
+          auditValue;
+        initialValues[tableSettings.auditFieldUpdatedBy || "_updatedBy"] =
+          auditValue;
+      }
+
+      // Check for required fields
+      const requiredFields = ignoreRequiredFields
+        ? []
+        : tableColumnsOrdered
+            .filter((column) => column.config?.required)
+            .map((column) => column.key);
+      const missingRequiredFields = ignoreRequiredFields
+        ? []
+        : requiredFields.filter((field) => row[field] === undefined);
+
+      // Combine initial values with row values
+      const rowValues = { ...initialValues, ...row };
+
+      // Add to rowsLocal if any required fields are missing or
+      // deliberately out of order
+      if (
+        missingRequiredFields.length > 0 ||
+        row._rowy_outOfOrder === true ||
+        outOfOrderFilters.size > 0
+      ) {
+        set(tableRowsLocalAtom, {
+          type: "add",
+          row: { ...rowValues, _rowy_outOfOrder: true },
+        });
+      } else {
+        await updateRowDb(row._rowy_ref.path, rowValues);
+      }
+
+      if (auditChange) auditChange("ADD_ROW", row._rowy_ref.path);
+    };
+
+    if (Array.isArray(row)) {
+      const promises = row.map(_addSingleRowAndAudit);
+      await Promise.all(promises);
+    } else {
+      await _addSingleRowAndAudit(row);
+    }
+  }
+);
+
+/**
+ * Deletes a row or an array of rows from rowsDb or rowsLocal.
+ * @param path - A single path or array of paths of rows to delete
+ *
+ * @example Basic usage:
+ * ```
+ * const deleteRow = useSetAtom(deleteRowAtom, tableScope);
+ * deleteRow( path );
+ * ```
+ */
+export const deleteRowAtom = atom(
+  null,
+  async (get, set, path: string | string[]) => {
+    const deleteRowDb = get(_deleteRowDbAtom);
+    if (!deleteRowDb) throw new Error("Cannot write to database");
+
+    const auditChange = get(auditChangeAtom);
+    const rowsLocal = get(tableRowsLocalAtom);
+
+    const _deleteSingleRowAndAudit = async (path: string) => {
+      const isLocalRow = Boolean(find(rowsLocal, ["_rowy_ref.path", path]));
+      if (isLocalRow) set(tableRowsLocalAtom, { type: "delete", path });
+      else await deleteRowDb(path);
+      if (auditChange) auditChange("DELETE_ROW", path);
+    };
+
+    if (Array.isArray(path)) {
+      const promises = path.map(_deleteSingleRowAndAudit);
+      await Promise.all(promises);
+    } else {
+      await _deleteSingleRowAndAudit(path);
+    }
+  }
+);
diff --git a/src/atoms/tableScope/table.ts b/src/atoms/tableScope/table.ts
index b03b3f8b..f86f2519 100644
--- a/src/atoms/tableScope/table.ts
+++ b/src/atoms/tableScope/table.ts
@@ -1,5 +1,6 @@
 import { atom } from "jotai";
-import { uniqBy } from "lodash-es";
+import { atomWithReducer } from "jotai/utils";
+import { uniqBy, findIndex } from "lodash-es";
 
 import {
   TableSettings,
@@ -10,6 +11,7 @@ import {
   UpdateCollectionDocFunction,
   DeleteCollectionDocFunction,
 } from "@src/types/table";
+import { updateRowData } from "@src/utils/table";
 
 /** Root atom from which others are derived */
 export const tableIdAtom = atom<string | undefined>(undefined);
@@ -29,8 +31,66 @@ export const tableOrdersAtom = atom<TableOrder[]>([]);
 /** Latest page in the infinite scroll */
 export const tablePageAtom = atom(0);
 
-/** Store rows that are out of order or not ready to be written to the db */
-export const tableRowsLocalAtom = atom<TableRow[]>([]);
+type TableRowsLocalAction =
+  /** Overwrite all rows */
+  | { type: "set"; rows: TableRow[] }
+  /** Add a row or multiple rows */
+  | { type: "add"; row: TableRow | TableRow[] }
+  /** Update a row */
+  | { type: "update"; path: string; row: Partial<TableRow> }
+  /** Delete a row or multiple rows */
+  | { type: "delete"; path: string | string[] };
+const tableRowsLocalReducer = (
+  prev: TableRow[],
+  action: TableRowsLocalAction
+): TableRow[] => {
+  if (action.type === "set") {
+    return [...action.rows];
+  }
+  if (action.type === "add") {
+    if (Array.isArray(action.row)) return [...action.row, ...prev];
+    return [action.row, ...prev];
+  }
+  if (action.type === "update") {
+    const index = findIndex(prev, ["_rowy_ref.path", action.path]);
+    if (index > -1) {
+      const updatedRows = [...prev];
+      updatedRows[index] = updateRowData(prev[index], action.row);
+      return updatedRows;
+    }
+    // If not found, add to start
+    if (index === -1)
+      return [
+        {
+          ...action.row,
+          _rowy_ref: {
+            path: action.path,
+            id: action.path.split("/").pop() || action.path,
+          },
+        },
+        ...prev,
+      ];
+  }
+  if (action.type === "delete") {
+    return prev.filter((row) => {
+      if (Array.isArray(action.path)) {
+        return !action.path.includes(row._rowy_ref.path);
+      } else {
+        return row._rowy_ref.path !== action.path;
+      }
+    });
+  }
+  throw new Error("Invalid action");
+};
+/**
+ * Store rows that are out of order or not ready to be written to the db.
+ * See {@link TableRowsLocalAction} for reducer actions.
+ */
+export const tableRowsLocalAtom = atomWithReducer(
+  [] as TableRow[],
+  tableRowsLocalReducer
+);
+
 /** Store rows from the db listener */
 export const tableRowsDbAtom = atom<TableRow[]>([]);
 /** Combine tableRowsLocal and tableRowsDb */
@@ -46,7 +106,9 @@ export const tableLoadingMoreAtom = atom(false);
 /**
  * Store function to add or update row in db directly.
  * Has same behaviour as Firestore setDoc with merge.
- * See https://stackoverflow.com/a/47554197/3572007
+ * @see
+ * - {@link updateRowData} implementation
+ * - https://stackoverflow.com/a/47554197/3572007
  * @internal Use {@link addRowAtom} or {@link updateRowAtom} instead
  */
 export const _updateRowDbAtom = atom<UpdateCollectionDocFunction | undefined>(
diff --git a/src/pages/TableTest.tsx b/src/pages/TableTest.tsx
index 9fd539b8..c5214076 100644
--- a/src/pages/TableTest.tsx
+++ b/src/pages/TableTest.tsx
@@ -18,7 +18,7 @@ import TableHeaderSkeleton from "@src/components/Table/Skeleton/TableHeaderSkele
 import HeaderRowSkeleton from "@src/components/Table/Skeleton/HeaderRowSkeleton";
 
 import { firebaseDbAtom } from "@src/sources/ProjectSourceFirebase";
-import { globalScope } from "@src/atoms/globalScope";
+import { currentUserAtom, globalScope } from "@src/atoms/globalScope";
 import { doc, setDoc, updateDoc } from "firebase/firestore";
 import { TABLE_SCHEMAS } from "@src/config/dbPaths";
 
@@ -105,6 +105,7 @@ function TableTestPage() {
 
 export default function ProvidedTableTestPage() {
   const { id } = useParams();
+  const [currentUser] = useAtom(currentUserAtom, globalScope);
 
   return (
     <Suspense
@@ -115,7 +116,14 @@ export default function ProvidedTableTestPage() {
         </>
       }
     >
-      <Provider key={id} scope={tableScope} initialValues={[[tableIdAtom, id]]}>
+      <Provider
+        key={id}
+        scope={tableScope}
+        initialValues={[
+          [tableIdAtom, id],
+          [currentUserAtom, currentUser],
+        ]}
+      >
         <TableSourceFirestore />
         <TableTestPage />
       </Provider>
diff --git a/src/types/table.d.ts b/src/types/table.d.ts
index 62d8c171..a335c8dd 100644
--- a/src/types/table.d.ts
+++ b/src/types/table.d.ts
@@ -65,18 +65,28 @@ export type ColumnConfig = {
   editable?: boolean;
 
   /** Column-specific config */
-  config: { [key: string]: any };
+  config?: {
+    required?: boolean;
+    defaultValue?: {
+      type: "undefined" | "null" | "static" | "dynamic";
+      value?: any;
+      script?: string;
+      dynamicValueFn?: string;
+    };
+
+    [key: string]: any;
+  };
   // [key: string]: any;
 };
 
 export type TableFilter = {
-  key: Parameters<typeof where>[0];
+  key: string;
   operator: Parameters<typeof where>[1];
-  value: Parameters<typeof where>[2];
+  value: any;
 };
 
 export type TableOrder = {
-  key: Parameters<typeof orderBy>[0];
+  key: string;
   direction: Parameters<typeof orderBy>[1];
 };
 
diff --git a/src/utils/table.ts b/src/utils/table.ts
new file mode 100644
index 00000000..4c5712ae
--- /dev/null
+++ b/src/utils/table.ts
@@ -0,0 +1,41 @@
+import { mergeWith, isArray } from "lodash-es";
+import type { User } from "firebase/auth";
+import { TableRow } from "@src/types/table";
+
+/**
+ * Creates a standard user object to write to table rows
+ * @param currentUser - The current signed-in user
+ * @param data - Any additional data to include
+ * @returns rowyUser object
+ */
+export const rowyUser = (currentUser: User, data?: Record<string, any>) => {
+  const { displayName, email, uid, emailVerified, isAnonymous, photoURL } =
+    currentUser;
+
+  return {
+    timestamp: new Date(),
+    displayName,
+    email,
+    uid,
+    emailVerified,
+    isAnonymous,
+    photoURL,
+    ...data,
+  };
+};
+
+/**
+ * Updates row data with the same behavior as Firestore’s setDoc with merge.
+ * Merges objects recursively, but overwrites arrays.
+ * @see https://stackoverflow.com/a/47554197/3572007
+ * @param row - The source row to update
+ * @param update - The partial update to apply
+ * @returns The row with updated values
+ */
+export const updateRowData = (row: TableRow, update: Partial<TableRow>) =>
+  mergeWith(
+    row,
+    update,
+    // If the proeprty to be merged is array, overwrite the array entirely
+    (objValue, srcValue) => (isArray(objValue) ? srcValue : undefined)
+  );