diff --git a/eslint-plugin-expensify/no-default-id-values.js b/eslint-plugin-expensify/no-default-id-values.js
new file mode 100644
index 0000000..69272bd
--- /dev/null
+++ b/eslint-plugin-expensify/no-default-id-values.js
@@ -0,0 +1,86 @@
+function createPatternRegex(pattern) {
+    return new RegExp(pattern.replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1'), 'g');
+}
+
+function searchForPatternsAndReport(context, sourceCode, soureCodeStr, pattern, messageId) {
+    const regex = createPatternRegex(pattern);
+    let match = regex.exec(soureCodeStr);
+    while (match !== null) {
+        const index = match.index;
+
+        const defaultStr = match[0];
+        const defaultStrPosition = sourceCode.getLocFromIndex(index);
+
+        context.report({
+            messageId,
+            loc: {
+                start: {line: defaultStrPosition.line, column: defaultStrPosition.column + defaultStr.indexOf(' ')},
+                end: {line: defaultStrPosition.line, column: defaultStrPosition.column + defaultStr.length},
+            },
+        });
+
+        match = regex.exec(soureCodeStr);
+    }
+}
+
+module.exports = {
+    name: 'no-default-id-values',
+    meta: {
+        type: 'problem',
+        docs: {
+            description: 'Restricts use of default number/string IDs in the project.',
+            recommended: 'error',
+        },
+        schema: [],
+        messages: {
+            // eslint-disable-next-line max-len
+            disallowedNumberDefault: 'Default the number ID to `CONST.DEFAULT_NUMBER_ID` instead. See: https://github.com/Expensify/App/blob/main/contributingGuides/STYLE.md#default-value-for-inexistent-IDs',
+            // eslint-disable-next-line max-len
+            disallowedStringDefault: 'Do not default string IDs to any value. See: https://github.com/Expensify/App/blob/main/contributingGuides/STYLE.md#default-value-for-inexistent-IDs',
+        },
+    },
+    create(context) {
+        const sourceCode = context.getSourceCode();
+        const soureCodeStr = sourceCode.text; // This gets all the text in the file
+
+        const disallowedNumberDefaults = [
+            'ID ?? -1',
+            'id ?? -1',
+            'ID ?? 0',
+            'id ?? 0',
+            'ID || -1',
+            'id || -1',
+            'ID || 0',
+            'id || 0',
+            'ID : -1',
+            'id : -1',
+            'ID : 0',
+            'id : 0',
+        ];
+
+        const disallowedStringDefaults = [
+            " ?? '-1'",
+            "ID ?? ''",
+            "id ?? ''",
+            "ID ?? '0'",
+            "id ?? '0'",
+            " || '-1'",
+            "ID || ''",
+            "id || ''",
+            "ID || '0'",
+            "id || '0'",
+            " : '-1'",
+            " : '0'",
+        ];
+
+        disallowedNumberDefaults.forEach((pattern) => {
+            searchForPatternsAndReport(context, sourceCode, soureCodeStr, pattern, 'disallowedNumberDefault');
+        });
+
+        disallowedStringDefaults.forEach((pattern) => {
+            searchForPatternsAndReport(context, sourceCode, soureCodeStr, pattern, 'disallowedStringDefault');
+        });
+
+        return {};
+    },
+};
diff --git a/eslint-plugin-expensify/tests/no-default-id-values.test.js b/eslint-plugin-expensify/tests/no-default-id-values.test.js
new file mode 100644
index 0000000..e394199
--- /dev/null
+++ b/eslint-plugin-expensify/tests/no-default-id-values.test.js
@@ -0,0 +1,260 @@
+const RuleTester = require('eslint').RuleTester;
+const rule = require('../no-default-id-values');
+
+const ruleTester = new RuleTester({
+    parserOptions: {
+        ecmaVersion: 2020,
+        sourceType: 'module',
+    },
+});
+
+ruleTester.run('no-default-id-values', rule, {
+    valid: [
+        // Number IDs
+        {
+            code: 'const accountID = report?.ownerAccountID ?? CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'const accountID = account?.id ?? CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'currentState = currentState?.routes[currentState.index ?? -1].state;',
+        },
+        {
+            code: 'currentState = currentState?.routes[currentState.index ?? 0].state;',
+        },
+        {
+            code: 'const accountID = report?.ownerAccountID || CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'const accountID = account?.id || CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'currentState = currentState?.routes[currentState.index || -1].state;',
+        },
+        {
+            code: 'currentState = currentState?.routes[currentState.index || 0].state;',
+        },
+        {
+            code: 'const managerID = report ? report.managerID : CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'const accountID = account ? account.id : CONST.DEFAULT_NUMBER_ID;',
+        },
+        {
+            code: 'options.sort((method) => (method.value === exportMethod ? -1 : 0));',
+        },
+
+        // String IDs
+        {
+            code: 'const reportID = report?.reportID;',
+        },
+        {
+            code: 'const iconName = icon.name ?? \'\'',
+        },
+        {
+            code: 'const index = tempIndex ?? \'0\'',
+        },
+        {
+            code: 'const iconName = icon.name || \'\'',
+        },
+        {
+            code: 'const index = tempIndex || \'0\'',
+        },
+    ],
+    invalid: [
+        // Number IDs
+        {
+            code: 'const accountID = report?.ownerAccountID ?? -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.id ?? -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const accountID = report?.ownerAccountID ?? 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.id ?? 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const accountID = report?.ownerAccountID || -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.id || -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const accountID = report?.ownerAccountID || 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.id || 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const managerID = report ? report.managerID : -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const accountID = account ? account.id : -1;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const managerID = report ? report.managerID : 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+        {
+            code: 'const accountID = account ? account.id : 0;',
+            errors: [{
+                messageId: 'disallowedNumberDefault',
+            }],
+        },
+
+        // String IDs
+        {
+            code: 'const reportID = report?.reportID ?? \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const currentReportID = Navigation.getTopmostReportId() ?? \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const currentReportID = navigationRef?.isReady?.() ? Navigation.getTopmostReportId() ?? \'-1\' : \'-1\';',
+            errors: [
+                {
+                    messageId: 'disallowedStringDefault',
+                },
+                {
+                    messageId: 'disallowedStringDefault',
+                },
+            ],
+        },
+        {
+            code: 'const reportID = report?.reportID ?? \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const policyID = policy?.id ?? \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.reportID ?? \'\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const policyID = policy?.id ?? \'\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.reportID ?? \'0\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const policyID = policy?.id ?? \'0\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.reportID || \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const currentReportID = Navigation.getTopmostReportId() || \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const currentReportID = navigationRef?.isReady?.() ? Navigation.getTopmostReportId() || \'-1\' : \'-1\';',
+            errors: [
+                {
+                    messageId: 'disallowedStringDefault',
+                },
+                {
+                    messageId: 'disallowedStringDefault',
+                },
+            ],
+        },
+        {
+            code: 'const reportID = report?.reportID || \'\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const policyID = policy?.id || \'\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report?.reportID || \'0\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const policyID = policy?.id || \'0\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report ? report.reportID : \'-1\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+        {
+            code: 'const reportID = report ? report.reportID : \'0\';',
+            errors: [{
+                messageId: 'disallowedStringDefault',
+            }],
+        },
+    ],
+});