diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go
index 995724e6fc..22ca1bd57c 100644
--- a/cmd/utils/cmd.go
+++ b/cmd/utils/cmd.go
@@ -249,9 +249,91 @@ func readList(filename string) ([]string, error) {
 	return strings.Split(string(b), "\n"), nil
 }
 
-// ImportHistory imports Era1 files containing historical block information,
+type eraReceiptFormat uint8
+
+const (
+	eraReceiptFormatConsensus eraReceiptFormat = iota // era1: full receipts
+	eraReceiptFormatSlim                              // erae: slim receipts
+)
+
+func receiptFormat(file string) (eraReceiptFormat, error) {
+	switch filepath.Ext(file) {
+	case ".era1":
+		return eraReceiptFormatConsensus, nil
+	case ".erae":
+		return eraReceiptFormatSlim, nil
+	default:
+		return 0, fmt.Errorf("unsupported era file: %s", file)
+	}
+}
+
+// convertSlimReceiptsToStorage converts slim receipt encoding
+// [tx-type, post-state-or-status, gas-used, logs] into storage encoding
+// [post-state-or-status, gas-used, logs].
+func convertSlimReceiptsToStorage(input []byte, expectedTxs int) (rlp.RawValue, error) {
+	var (
+		out bytes.Buffer
+		enc = rlp.NewEncoderBuffer(&out)
+	)
+	blockListIter, err := rlp.NewListIterator(input)
+	if err != nil {
+		return nil, fmt.Errorf("invalid block receipts list: %w", err)
+	}
+	outerList := enc.List()
+	receipts := 0
+	for ; blockListIter.Next(); receipts++ {
+		dataIter, err := rlp.NewListIterator(blockListIter.Value())
+		if err != nil {
+			return nil, fmt.Errorf("slim receipt %d has invalid data: %w", receipts, err)
+		}
+		innerList := enc.List()
+		fields := 0
+		for dataIter.Next() {
+			switch fields {
+			case 0:
+				// Skip tx type.
+			case 1, 2, 3:
+				enc.Write(dataIter.Value())
+			default:
+				return nil, fmt.Errorf("slim receipt %d has too many fields", receipts)
+			}
+			fields++
+		}
+		enc.ListEnd(innerList)
+		if dataIter.Err() != nil {
+			return nil, fmt.Errorf("slim receipt %d iterator error: %w", receipts, dataIter.Err())
+		}
+		if fields != 4 {
+			return nil, fmt.Errorf("slim receipt %d has %d fields, want 4", receipts, fields)
+		}
+	}
+	enc.ListEnd(outerList)
+	if blockListIter.Err() != nil {
+		return nil, fmt.Errorf("block receipt list iterator error: %w", blockListIter.Err())
+	}
+	if expectedTxs >= 0 && receipts != expectedTxs {
+		return nil, fmt.Errorf("tx/receipt count mismatch: %d txs, %d receipts", expectedTxs, receipts)
+	}
+	if err := enc.Flush(); err != nil {
+		return nil, err
+	}
+	return out.Bytes(), nil
+}
+
+func convertReceiptsToStorage(input []byte, format eraReceiptFormat, expectedTxs int) (rlp.RawValue, error) {
+	switch format {
+	case eraReceiptFormatConsensus:
+		return types.ConvertConsensusReceiptsToStorage(input)
+	case eraReceiptFormatSlim:
+		return convertSlimReceiptsToStorage(input, expectedTxs)
+	default:
+		return nil, fmt.Errorf("unsupported receipt format: %d", format)
+	}
+}
+
+// ImportHistory imports Era files containing historical block information,
 // starting from genesis. The assumption is held that the provided chain
-// segment in Era1 file should all be canonical and verified.
+// segment in era file should all be canonical and verified.
 func ImportHistory(chain *core.BlockChain, dir string, network string, from func(f era.ReadAtSeekCloser) (era.Era, error)) error {
 	if chain.CurrentSnapBlock().Number.BitLen() != 0 {
 		return errors.New("history import only supported when starting from genesis")
@@ -273,72 +355,107 @@ func ImportHistory(chain *core.BlockChain, dir string, network string, from func
 		start    = time.Now()
 		reported = time.Now()
 		imported = 0
-		h        = sha256.New()
-		scratch  = bytes.NewBuffer(nil)
 	)
 
 	for i, file := range entries {
-		err := func() error {
-			path := filepath.Join(dir, file)
+		format, err := receiptFormat(file)
+		if err != nil {
+			return err
+		}
+		path := filepath.Join(dir, file)
 
-			// validate against checksum file in directory
-			f, err := os.Open(path)
-			if err != nil {
-				return fmt.Errorf("open %s: %w", path, err)
-			}
-			defer f.Close()
-			if _, err := io.Copy(h, f); err != nil {
-				return fmt.Errorf("checksum %s: %w", path, err)
-			}
-			got := common.BytesToHash(h.Sum(scratch.Bytes()[:])).Hex()
-			want := checksums[i]
-			h.Reset()
-			scratch.Reset()
+		// Validate against checksum file in directory.
+		f, err := os.Open(path)
+		if err != nil {
+			return fmt.Errorf("open %s: %w", path, err)
+		}
+		h := sha256.New()
+		if _, err := io.Copy(h, f); err != nil {
+			f.Close()
+			return fmt.Errorf("checksum %s: %w", path, err)
+		}
+		got := common.BytesToHash(h.Sum(nil)).Hex()
+		if got != checksums[i] {
+			f.Close()
+			return fmt.Errorf("%s checksum mismatch: have %s want %s", file, got, checksums[i])
+		}
+		if _, err := f.Seek(0, io.SeekStart); err != nil {
+			f.Close()
+			return fmt.Errorf("seek %s: %w", path, err)
+		}
 
-			if got != want {
-				return fmt.Errorf("%s checksum mismatch: have %s want %s", file, got, want)
-			}
-			// Import all block data from Era1.
-			e, err := from(f)
-			if err != nil {
-				return fmt.Errorf("error opening era: %w", err)
-			}
-			it, err := e.Iterator()
-			if err != nil {
-				return fmt.Errorf("error creating iterator: %w", err)
-			}
+		e, err := from(f)
+		if err != nil {
+			f.Close() // onedb.From does not close on metadata errors
+			return fmt.Errorf("error opening era: %w", err)
+		}
+		it, err := e.Iterator()
+		if err != nil {
+			e.Close()
+			return fmt.Errorf("error creating iterator: %w", err)
+		}
 
-			for it.Next() {
-				block, err := it.Block()
-				if err != nil {
-					return fmt.Errorf("error reading block %d: %w", it.Number(), err)
+		var (
+			blocks   = make([]*types.Block, 0, importBatchSize)
+			receipts = make([]rlp.RawValue, 0, importBatchSize)
+			flush    = func() error {
+				if len(blocks) == 0 {
+					return nil
 				}
-				if block.Number().BitLen() == 0 {
-					continue // skip genesis
+				if _, err := chain.InsertReceiptChain(blocks, receipts, math.MaxUint64); err != nil {
+					return fmt.Errorf("error inserting blocks %d-%d: %w",
+						blocks[0].NumberU64(), blocks[len(blocks)-1].NumberU64(), err)
 				}
-				receipts, err := it.Receipts()
-				if err != nil {
-					return fmt.Errorf("error reading receipts %d: %w", it.Number(), err)
-				}
-				enc := types.EncodeBlockReceiptLists([]types.Receipts{receipts})
-				if _, err := chain.InsertReceiptChain([]*types.Block{block}, enc, math.MaxUint64); err != nil {
-					return fmt.Errorf("error inserting body %d: %w", it.Number(), err)
-				}
-				imported++
-
+				imported += len(blocks)
 				if time.Since(reported) >= 8*time.Second {
-					log.Info("Importing Era files", "head", it.Number(), "imported", imported,
+					head := blocks[len(blocks)-1].NumberU64()
+					log.Info("Importing Era files", "head", head, "imported", imported,
 						"elapsed", common.PrettyDuration(time.Since(start)))
 					imported = 0
 					reported = time.Now()
 				}
+				blocks = blocks[:0]
+				receipts = receipts[:0]
+				return nil
 			}
-			if err := it.Error(); err != nil {
-				return err
+		)
+		for it.Next() {
+			block, err := it.Block()
+			if err != nil {
+				e.Close()
+				return fmt.Errorf("error reading block %d: %w", it.Number(), err)
 			}
-			return nil
-		}()
-		if err != nil {
+			if block.Number().BitLen() == 0 {
+				continue // skip genesis
+			}
+			raw, err := e.GetRawReceiptsByNumber(block.NumberU64())
+			if err != nil {
+				e.Close()
+				return fmt.Errorf("error reading receipts %d: %w", it.Number(), err)
+			}
+			enc, err := convertReceiptsToStorage(raw, format, len(block.Transactions()))
+			if err != nil {
+				e.Close()
+				return fmt.Errorf("error converting receipts %d: %w", it.Number(), err)
+			}
+			blocks = append(blocks, block)
+			receipts = append(receipts, enc)
+			if len(blocks) == importBatchSize {
+				if err := flush(); err != nil {
+					e.Close()
+					return err
+				}
+			}
+		}
+		if err := it.Error(); err != nil {
+			e.Close()
+			return err
+		}
+		if err := flush(); err != nil {
+			e.Close()
+			return err
+		}
+		if err := e.Close(); err != nil {
 			return err
 		}
 	}
diff --git a/cmd/utils/history_receipts_test.go b/cmd/utils/history_receipts_test.go
new file mode 100644
index 0000000000..77acf35952
--- /dev/null
+++ b/cmd/utils/history_receipts_test.go
@@ -0,0 +1,131 @@
+// Copyright 2026 The go-ethereum Authors
+// This file is part of go-ethereum.
+//
+// go-ethereum is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// go-ethereum is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+
+package utils
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/rlp"
+)
+
+func makeTestReceipt(typ uint8) *types.Receipt {
+	r := &types.Receipt{
+		Type:              typ,
+		Status:            types.ReceiptStatusSuccessful,
+		CumulativeGasUsed: 42_000,
+		Logs: []*types.Log{
+			{
+				Address: common.HexToAddress("0x1"),
+				Topics:  []common.Hash{common.HexToHash("0x2"), common.HexToHash("0x3")},
+				Data:    []byte{0xde, 0xad, 0xbe, 0xef},
+			},
+		},
+	}
+	r.Bloom = types.CreateBloom(r)
+	return r
+}
+
+func TestImportHistory_ConvertSlimReceiptsToStorage(t *testing.T) {
+	tests := []struct {
+		name     string
+		receipts types.Receipts
+	}{
+		{
+			name:     "typed-single",
+			receipts: types.Receipts{makeTestReceipt(types.DynamicFeeTxType)},
+		},
+		{
+			name:     "legacy-single",
+			receipts: types.Receipts{makeTestReceipt(types.LegacyTxType)},
+		},
+		{
+			name: "mixed-multiple",
+			receipts: types.Receipts{
+				makeTestReceipt(types.LegacyTxType),
+				makeTestReceipt(types.DynamicFeeTxType),
+			},
+		},
+		{
+			name:     "empty",
+			receipts: types.Receipts{},
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			rawSlimReceipts := make([]*types.SlimReceipt, len(tc.receipts))
+			for i, receipt := range tc.receipts {
+				rawSlimReceipts[i] = (*types.SlimReceipt)(receipt)
+			}
+			rawSlim, err := rlp.EncodeToBytes(rawSlimReceipts)
+			if err != nil {
+				t.Fatalf("failed to encode slim receipts: %v", err)
+			}
+			got, err := convertReceiptsToStorage(rawSlim, eraReceiptFormatSlim, len(tc.receipts))
+			if err != nil {
+				t.Fatalf("conversion failed: %v", err)
+			}
+			want := types.EncodeBlockReceiptLists([]types.Receipts{tc.receipts})[0]
+			if !bytes.Equal(got, want) {
+				t.Fatalf("converted storage receipts mismatch\ngot:  %x\nwant: %x", got, want)
+			}
+		})
+	}
+}
+
+func TestImportHistory_ConvertSlimReceiptsToStorageErrors(t *testing.T) {
+	tests := []struct {
+		name string
+		raw  []byte
+		want string
+	}{
+		{
+			name: "invalid-rlp",
+			raw:  []byte{0xff},
+			want: "invalid block receipts list",
+		},
+		{
+			name: "too-few-fields",
+			raw:  []byte{0xc4, 0xc3, 0x01, 0x02, 0x03}, // [[1,2,3]]
+			want: "want 4",
+		},
+		{
+			name: "too-many-fields",
+			raw:  []byte{0xc6, 0xc5, 0x01, 0x02, 0x03, 0x04, 0x05}, // [[1,2,3,4,5]]
+			want: "too many fields",
+		},
+		{
+			name: "tx-receipt-count-mismatch",
+			raw:  []byte{0xc5, 0xc4, 0x01, 0x01, 0x02, 0xc0}, // [[1,1,2,[]]]
+			want: "tx/receipt count mismatch",
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := convertReceiptsToStorage(tc.raw, eraReceiptFormatSlim, 2)
+			if err == nil {
+				t.Fatalf("expected error")
+			}
+			if !strings.Contains(err.Error(), tc.want) {
+				t.Fatalf("unexpected error: %v", err)
+			}
+		})
+	}
+}
diff --git a/core/rawdb/eradb/eradb.go b/core/rawdb/eradb/eradb.go
index d715c824ed..9c38041a72 100644
--- a/core/rawdb/eradb/eradb.go
+++ b/core/rawdb/eradb/eradb.go
@@ -18,7 +18,6 @@
 package eradb
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"io/fs"
@@ -26,10 +25,10 @@ import (
 	"sync"
 
 	"github.com/ethereum/go-ethereum/common/lru"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/internal/era"
 	"github.com/ethereum/go-ethereum/internal/era/onedb"
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/rlp"
 )
 
 const openFileLimit = 64
@@ -138,56 +137,7 @@ func (db *Store) GetRawReceipts(number uint64) ([]byte, error) {
 // convertReceipts transforms an encoded block receipts list from the format
 // used by era1 into the 'storage' format used by the go-ethereum ancients database.
 func convertReceipts(input []byte) ([]byte, error) {
-	var (
-		out bytes.Buffer
-		enc = rlp.NewEncoderBuffer(&out)
-	)
-	blockListIter, err := rlp.NewListIterator(input)
-	if err != nil {
-		return nil, fmt.Errorf("invalid block receipts list: %v", err)
-	}
-	outerList := enc.List()
-	for i := 0; blockListIter.Next(); i++ {
-		kind, content, _, err := rlp.Split(blockListIter.Value())
-		if err != nil {
-			return nil, fmt.Errorf("receipt %d invalid: %v", i, err)
-		}
-		var receiptData []byte
-		switch kind {
-		case rlp.Byte:
-			return nil, fmt.Errorf("receipt %d is single byte", i)
-		case rlp.String:
-			// Typed receipt - skip type.
-			receiptData = content[1:]
-		case rlp.List:
-			// Legacy receipt
-			receiptData = blockListIter.Value()
-		}
-		// Convert data list.
-		// Input is  [status, gas-used, bloom, logs]
-		// Output is [status, gas-used, logs], i.e. we need to skip the bloom.
-		dataIter, err := rlp.NewListIterator(receiptData)
-		if err != nil {
-			return nil, fmt.Errorf("receipt %d has invalid data: %v", i, err)
-		}
-		innerList := enc.List()
-		for field := 0; dataIter.Next(); field++ {
-			if field == 2 {
-				continue // skip bloom
-			}
-			enc.Write(dataIter.Value())
-		}
-		enc.ListEnd(innerList)
-		if dataIter.Err() != nil {
-			return nil, fmt.Errorf("receipt %d iterator error: %v", i, dataIter.Err())
-		}
-	}
-	enc.ListEnd(outerList)
-	if blockListIter.Err() != nil {
-		return nil, fmt.Errorf("block receipt list iterator error: %v", blockListIter.Err())
-	}
-	enc.Flush()
-	return out.Bytes(), nil
+	return types.ConvertConsensusReceiptsToStorage(input)
 }
 
 // getEraByEpoch opens an era file or gets it from the cache.
diff --git a/core/types/receipt.go b/core/types/receipt.go
index ba7d9900f0..5e053e4d31 100644
--- a/core/types/receipt.go
+++ b/core/types/receipt.go
@@ -425,6 +425,70 @@ func EncodeBlockReceiptLists(receipts []Receipts) []rlp.RawValue {
 	return result
 }
 
+// ConvertConsensusReceiptsToStorage converts canonical receipt encoding
+// [post-state-or-status, gas-used, bloom, logs] into storage encoding
+// [post-state-or-status, gas-used, logs].
+func ConvertConsensusReceiptsToStorage(input []byte) (rlp.RawValue, error) {
+	var (
+		out bytes.Buffer
+		enc = rlp.NewEncoderBuffer(&out)
+	)
+	blockListIter, err := rlp.NewListIterator(input)
+	if err != nil {
+		return nil, fmt.Errorf("invalid block receipts list: %w", err)
+	}
+	outerList := enc.List()
+	for i := 0; blockListIter.Next(); i++ {
+		kind, content, _, err := rlp.Split(blockListIter.Value())
+		if err != nil {
+			return nil, fmt.Errorf("receipt %d invalid: %w", i, err)
+		}
+		var receiptData []byte
+		switch kind {
+		case rlp.Byte:
+			return nil, fmt.Errorf("receipt %d is single byte", i)
+		case rlp.String:
+			if len(content) == 0 {
+				return nil, fmt.Errorf("typed receipt %d has empty payload", i)
+			}
+			receiptData = content[1:] // strip tx type
+		case rlp.List:
+			receiptData = blockListIter.Value()
+		default:
+			return nil, fmt.Errorf("receipt %d has invalid RLP kind", i)
+		}
+		dataIter, err := rlp.NewListIterator(receiptData)
+		if err != nil {
+			return nil, fmt.Errorf("receipt %d has invalid data: %w", i, err)
+		}
+		innerList := enc.List()
+		fields := 0
+		for dataIter.Next() {
+			if fields == 2 {
+				fields++
+				continue // skip bloom
+			}
+			enc.Write(dataIter.Value())
+			fields++
+		}
+		enc.ListEnd(innerList)
+		if dataIter.Err() != nil {
+			return nil, fmt.Errorf("receipt %d iterator error: %w", i, dataIter.Err())
+		}
+		if fields != 4 {
+			return nil, fmt.Errorf("receipt %d has %d fields, want 4", i, fields)
+		}
+	}
+	enc.ListEnd(outerList)
+	if blockListIter.Err() != nil {
+		return nil, fmt.Errorf("block receipt list iterator error: %w", blockListIter.Err())
+	}
+	if err := enc.Flush(); err != nil {
+		return nil, err
+	}
+	return out.Bytes(), nil
+}
+
 // SlimReceipt is a wrapper around a Receipt with RLP serialization that omits
 // the Bloom field and includes the tx type. Used for era files.
 type SlimReceipt Receipt
diff --git a/core/types/receipt_test.go b/core/types/receipt_test.go
index 676d9c3d30..559fc72e58 100644
--- a/core/types/receipt_test.go
+++ b/core/types/receipt_test.go
@@ -22,6 +22,7 @@ import (
 	"math"
 	"math/big"
 	"reflect"
+	"strings"
 	"sync"
 	"testing"
 
@@ -512,6 +513,101 @@ func TestReceiptUnmarshalBinary(t *testing.T) {
 	}
 }
 
+func makeStorageConversionTestReceipt(typ uint8) *Receipt {
+	r := &Receipt{
+		Type:              typ,
+		Status:            ReceiptStatusSuccessful,
+		CumulativeGasUsed: 42_000,
+		Logs: []*Log{
+			{
+				Address: common.HexToAddress("0x1"),
+				Topics:  []common.Hash{common.HexToHash("0x2"), common.HexToHash("0x3")},
+				Data:    []byte{0xde, 0xad, 0xbe, 0xef},
+			},
+		},
+	}
+	r.Bloom = CreateBloom(r)
+	return r
+}
+
+func TestConvertConsensusReceiptsToStorage(t *testing.T) {
+	tests := []struct {
+		name     string
+		receipts Receipts
+	}{
+		{
+			name:     "typed-single",
+			receipts: Receipts{makeStorageConversionTestReceipt(DynamicFeeTxType)},
+		},
+		{
+			name:     "legacy-single",
+			receipts: Receipts{makeStorageConversionTestReceipt(LegacyTxType)},
+		},
+		{
+			name: "mixed-multiple",
+			receipts: Receipts{
+				makeStorageConversionTestReceipt(LegacyTxType),
+				makeStorageConversionTestReceipt(DynamicFeeTxType),
+			},
+		},
+		{
+			name:     "empty",
+			receipts: Receipts{},
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			raw, err := rlp.EncodeToBytes(tc.receipts)
+			if err != nil {
+				t.Fatalf("failed to encode consensus receipts: %v", err)
+			}
+			got, err := ConvertConsensusReceiptsToStorage(raw)
+			if err != nil {
+				t.Fatalf("conversion failed: %v", err)
+			}
+			want := EncodeBlockReceiptLists([]Receipts{tc.receipts})[0]
+			if !bytes.Equal(got, want) {
+				t.Fatalf("converted storage receipts mismatch\ngot:  %x\nwant: %x", got, want)
+			}
+		})
+	}
+}
+
+func TestConvertConsensusReceiptsToStorageErrors(t *testing.T) {
+	tests := []struct {
+		name string
+		raw  []byte
+		want string
+	}{
+		{
+			name: "invalid-rlp",
+			raw:  []byte{0xff},
+			want: "invalid block receipts list",
+		},
+		{
+			name: "single-byte-receipt",
+			raw:  []byte{0xc1, 0x01}, // list with one single-byte item
+			want: "single byte",
+		},
+		{
+			name: "typed-empty-payload",
+			raw:  []byte{0xc1, 0x80}, // list with one empty-string item
+			want: "empty payload",
+		},
+	}
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := ConvertConsensusReceiptsToStorage(tc.raw)
+			if err == nil {
+				t.Fatalf("expected error")
+			}
+			if !strings.Contains(err.Error(), tc.want) {
+				t.Fatalf("unexpected error: %v", err)
+			}
+		})
+	}
+}
+
 func TestSlimReceiptEncodingDecoding(t *testing.T) {
 	tests := []*Receipt{
 		legacyReceipt,