Pub 946 Compliance

src/components/UserManual.vue

@@ -339,6 +339,36 @@
               + $100,000 §179 increase, placed in service 2007–2008).
             </p>
 
+            <h3>Listed property &amp; passenger automobiles (§280F)</h3>
+            <p>
+              Two switches on an asset’s Details tab drive the §280F rules (IRS Pub 946):
+            </p>
+            <ul>
+              <li><strong>Listed property</strong> — when such an asset is used <strong>50% or less</strong> for qualified
+                business (its <em>Business use %</em>), the engine automatically switches it to <strong>ADS straight-line</strong>
+                and disallows §179 and bonus depreciation, exactly as §280F requires. Above 50%, it depreciates normally.</li>
+              <li><strong>Passenger automobile</strong> — flags the asset for the annual <strong>luxury-auto depreciation caps</strong>.
+                Each year’s depreciation is limited to the §280F cap for the placed-in-service year (the higher first-year figure
+                applies when bonus is claimed), reduced by the business-use %. Any basis not recovered within the recovery period
+                continues at the final-year cap until the asset is fully depreciated.</li>
+            </ul>
+            <v-alert type="info" variant="tonal" density="comfortable" class="manual-callout">
+              The yearly cap amounts are maintained in <strong>Admin → Application Configuration → §280F passenger-auto limits</strong>
+              (indexed annually by the IRS); like the §179 limits, they are editable data — no software update needed when the IRS
+              publishes new figures.
+            </v-alert>
+
+            <h3>Section 179 limitation &amp; carryover</h3>
+            <p>
+              While the engine caps <em>each asset’s</em> §179 at the annual dollar limit and investment phase-out, the
+              <strong>Financial → Section 179</strong> screen provides the <strong>return-level</strong> view: it totals the §179
+              elected across the company’s assets for a tax year and applies the <strong>annual dollar limit</strong> (reduced by the
+              phase-out once §179 property cost exceeds the threshold) <em>and</em> your <strong>business taxable-income limit</strong>
+              (§179 can’t create a loss). Enter your taxable income, and the worksheet shows the allowed deduction and the
+              <strong>carryover</strong> of any disallowed amount. Saving stores the carryover so the <strong>next year automatically
+              picks it up</strong> as additional available §179.
+            </p>
+
             <h3>The PM (maintenance) book</h3>
             <p>
               A dedicated <strong>PM book</strong> tracks actual maintenance <em>spend</em> per asset rather than depreciation. Its ledger
@@ -864,7 +894,7 @@
               <strong>Admin</strong> (admin role) is where the application is configured. It is split into sub-screens in the
               navigation rail: <strong>Users &amp; Teams</strong>, <strong>Password &amp; Security</strong>,
               <strong>Activity &amp; Audit Trail</strong>, <strong>Application Configuration</strong> (companies, application
-              settings, asset classes, depreciation zones, Section 179 limits, asset ID templates, asset categories,
+              settings, asset classes, depreciation zones, Section 179 limits, §280F passenger-auto limits, asset ID templates, asset categories,
               asset departments, PM categories, parts categories, maintenance defaults, tax rule sets), and
               <strong>Integrations</strong> (email, webhook, Microsoft Teams, ServiceNow, Workday). Each is described below.
             </p>
@@ -1186,7 +1216,7 @@ export default {
         { id: 'assets', title: 'Assets — creating & managing', icon: 'mdi-archive-search-outline', keywords: 'asset register create edit import export mass edit workbench files notes tasks warranty' },
         { id: 'lifecycle', title: 'Asset lifecycle', icon: 'mdi-cash-remove', keywords: 'dispose disposal sale retire gain loss lease amortization impairment adjustment write down' },
         { id: 'barcodes', title: 'Barcodes & scanning', icon: 'mdi-barcode-scan', keywords: 'barcode label print scan camera tag' },
-        { id: 'books', title: 'Books, depreciation & tax', icon: 'mdi-book-open-variant', keywords: 'book gaap federal depreciation general ledger gl method convention 179 bonus reports journal entry entries import export csv excel conflict merge history zone section 179' },
+        { id: 'books', title: 'Books, depreciation & tax', icon: 'mdi-book-open-variant', keywords: 'book gaap federal depreciation general ledger gl method convention 179 bonus reports journal entry entries import export csv excel conflict merge history zone section 179 280f listed property passenger automobile luxury auto caps ads straight line mid-quarter limitation carryover taxable income macrs' },
         { id: 'close', title: 'Period close (month & year-end)', icon: 'mdi-calendar-lock', keywords: 'close month end year end period lock reconcile subledger gl roll forward retained earnings depreciation post reopen finalize wip capitalize disposal impairment audit' },
         { id: 'taxrules', title: 'Tax rule sets', icon: 'mdi-scale-balance', keywords: 'tax rules jurisdiction method limits activate version' },
         { id: 'templates', title: 'Templates', icon: 'mdi-form-select', keywords: 'template defaults custom fields data entry' },