diff --git a/lld/COFF/Writer.cpp b/lld/COFF/Writer.cpp
index 4a0eed4d00997..3cb9b3b512ead 100644
--- a/lld/COFF/Writer.cpp
+++ b/lld/COFF/Writer.cpp
@@ -217,6 +217,7 @@ class Writer {
   void createExportTable();
   void mergeSections();
   void sortECChunks();
+  void appendECImportTables();
   void removeUnusedSections();
   void assignAddresses();
   bool isInRange(uint16_t relType, uint64_t s, uint64_t p, int margin,
@@ -753,6 +754,7 @@ void Writer::run() {
     createExportTable();
     mergeSections();
     sortECChunks();
+    appendECImportTables();
     removeUnusedSections();
     finalizeAddresses();
     removeEmptySections();
@@ -914,6 +916,28 @@ void Writer::addSyntheticIdata() {
   add(".idata$7", idata.dllNames);
 }
 
+void Writer::appendECImportTables() {
+  if (!isArm64EC(ctx.config.machine))
+    return;
+
+  const uint32_t rdata = IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ;
+
+  // IAT is always placed at the begining of .rdata section and its size
+  // is aligned to 4KB. Insert it here, after all merges all done.
+  if (PartialSection *importAddresses = findPartialSection(".idata$5", rdata)) {
+    if (!rdataSec->chunks.empty())
+      rdataSec->chunks.front()->setAlignment(
+          std::max(0x1000u, rdataSec->chunks.front()->getAlignment()));
+    iatSize = alignTo(iatSize, 0x1000);
+
+    rdataSec->chunks.insert(rdataSec->chunks.begin(),
+                            importAddresses->chunks.begin(),
+                            importAddresses->chunks.end());
+    rdataSec->contribSections.insert(rdataSec->contribSections.begin(),
+                                     importAddresses);
+  }
+}
+
 // Locate the first Chunk and size of the import directory list and the
 // IAT.
 void Writer::locateImportTables() {
@@ -1069,6 +1093,11 @@ void Writer::createSections() {
       sortCRTSectionChunks(pSec->chunks);
     }
 
+    // ARM64EC has specific placement and alignment requirements for the IAT.
+    // Delay adding its chunks until appendECImportTables.
+    if (isArm64EC(ctx.config.machine) && pSec->name == ".idata$5")
+      continue;
+
     OutputSection *sec = createSection(name, outChars);
     for (Chunk *c : pSec->chunks)
       sec->addChunk(c);
diff --git a/lld/test/COFF/arm64ec-import.test b/lld/test/COFF/arm64ec-import.test
index 2a80a30910b5c..b1c47d785e445 100644
--- a/lld/test/COFF/arm64ec-import.test
+++ b/lld/test/COFF/arm64ec-import.test
@@ -20,7 +20,7 @@ RUN: llvm-readobj --coff-imports out2.dll | FileCheck --check-prefix=IMPORTS %s
 IMPORTS:      Import {
 IMPORTS-NEXT:   Name: test.dll
 IMPORTS-NEXT:   ImportLookupTableRVA:
-IMPORTS-NEXT:   ImportAddressTableRVA: 0x2258
+IMPORTS-NEXT:   ImportAddressTableRVA: 0x2000
 IMPORTS-NEXT:   Symbol: data (0)
 IMPORTS-NEXT:   Symbol: func (0)
 IMPORTS-NEXT:   Symbol: func2 (0)
@@ -28,7 +28,7 @@ IMPORTS-NEXT: }
 IMPORTS-NEXT: Import {
 IMPORTS-NEXT:   Name: test2.dll
 IMPORTS-NEXT:   ImportLookupTableRVA:
-IMPORTS-NEXT:   ImportAddressTableRVA: 0x2278
+IMPORTS-NEXT:   ImportAddressTableRVA: 0x2020
 IMPORTS-NEXT:   Symbol: t2func (0)
 IMPORTS-NEXT: }
 
@@ -36,12 +36,17 @@ RUN: llvm-objdump -d out.dll | FileCheck --check-prefix=DISASM %s
 RUN: llvm-objdump -d out2.dll | FileCheck --check-prefix=DISASM %s
 
 DISASM:      0000000180001000 <.text>:
-DISASM-NEXT: 180001000: ff 25 5a 12 00 00            jmpq    *0x125a(%rip)           # 0x180002260
+DISASM-NEXT: 180001000: ff 25 02 10 00 00            jmpq    *0x1002(%rip)           # 0x180002008
 
 RUN: llvm-readobj --hex-dump=.test out.dll | FileCheck --check-prefix=TESTSEC %s
 RUN: llvm-readobj --hex-dump=.test out2.dll | FileCheck --check-prefix=TESTSEC %s
-TESTSEC:      0x180004000 60220000 58220000 68220000 78220000
-TESTSEC-NEXT: 0x180004010 00100000
+TESTSEC:      0x180005000 08200000 00200000 10200000 20200000
+TESTSEC-NEXT: 0x180005010 00100000
+
+RUN: llvm-readobj --headers out.dll | FileCheck -check-prefix=HEADERS %s
+HEADERS:  LoadConfigTableRVA: 0x3008
+HEADERS:  IATRVA: 0x2000
+HEADERS:  IATSize: 0x1000
 
 #--- test.s
     .section .test, "r"