diff --git a/obitests/obitools/obiconvert/out_ecotag.fasta b/obitests/obitools/obiconvert/out_ecotag.fasta
new file mode 100644
index 0000000..330e57a
--- /dev/null
+++ b/obitests/obitools/obiconvert/out_ecotag.fasta
@@ -0,0 +1,24 @@
+>HELIUM_000100422_612GNAAXX:7:118:3572:14633#0/1_sub[28..126] {"count":10172,"merged_sample":{"26a_F040644":10172},"obitag_bestid":0.9797979797979798,"obitag_bestmatch":"AY227529","obitag_match_count":1,"obitag_rank":"genus","obitag_similarity_method":"lcs","taxid":"taxon:9992 [Marmota]@genus"}
+ttagccctaaacataaacattcaataaacaagaatgttcgccagagtactactagcaaca
+gcctgaaactcaaaggacttggcggtgctttacatccct
+>HELIUM_000100422_612GNAAXX:7:99:9351:13090#0/1_sub[28..127] {"count":260,"merged_sample":{"29a_F260619":260},"obitag_bestid":0.9405940594059405,"obitag_bestmatch":"AF154263","obitag_match_count":9,"obitag_rank":"infraorder","obitag_similarity_method":"lcs","taxid":"taxon:35500 [Pecora]@infraorder"}
+ttagccctaaacacaaataattacacaaacaaaattgttcaccagagtactagcggcaac
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:108:10111:9078#0/1_sub[28..127] {"count":7146,"merged_sample":{"13a_F730603":7146},"obitag_bestid":1,"obitag_bestmatch":"AB245427","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9860 [Cervus elaphus]@species"}
+ctagccttaaacacaaatagttatgcaaacaaaactattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:38:14204:12725#0/1_sub[28..126] {"count":87,"merged_sample":{"26a_F040644":87},"obitag_bestid":0.9494949494949495,"obitag_bestmatch":"AY227530","obitag_match_count":2,"obitag_rank":"tribe","obitag_similarity_method":"lcs","taxid":"taxon:337730 [Marmotini]@tribe"}
+ttagccctaaacataaacattcaataaacaagaatgttcgccagaggactactagcaata
+gcttaaaactcaaaggacttggcggtgctttatatccct
+>HELIUM_000100422_612GNAAXX:7:30:9942:4495#0/1_sub[28..126] {"count":95,"merged_sample":{"26a_F040644":11,"29a_F260619":84},"obitag_bestid":0.9595959595959596,"obitag_bestmatch":"AC187326","obitag_match_count":1,"obitag_rank":"subspecies","obitag_similarity_method":"lcs","taxid":"taxon:9615 [Canis lupus familiaris]@subspecies"}
+ttagccctaaacataagctattccataacaaaataattcgccagagaactactagcaaca
+gattaaacctcaaaggacttggcagtgctttatacccct
+>HELIUM_000100422_612GNAAXX:7:51:16702:19393#0/1_sub[28..127] {"count":12004,"merged_sample":{"15a_F730814":7465,"29a_F260619":4539},"obitag_bestid":1,"obitag_bestmatch":"AJ885202","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9858 [Capreolus capreolus]@species"}
+ttagccctaaacacaagtaattaatataacaaaattattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:84:14502:1617#0/1_sub[28..127] {"count":319,"merged_sample":{"29a_F260619":319},"obitag_bestid":1,"obitag_bestmatch":"AJ972683","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9858 [Capreolus capreolus]@species"}
+ttagccctaaacacaagtaattattataacaaaattattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:50:10637:6527#0/1_sub[28..126] {"count":366,"merged_sample":{"13a_F730603":13,"15a_F730814":5,"26a_F040644":347,"29a_F260619":1},"obitag_bestid":1,"obitag_bestmatch":"AB048590","obitag_match_count":1,"obitag_rank":"genus","obitag_similarity_method":"lcs","taxid":"taxon:9611 [Canis]@genus"}
+ttagccctaaacatagataattttacaacaaaataattcgccagaggactactagcaata
+gcttaaaactcaaaggacttggcggtgctttatatccct
diff --git a/obitests/obitools/obiconvert/taxonomy.csv b/obitests/obitools/obiconvert/taxonomy.csv
new file mode 100644
index 0000000..e3ebe26
--- /dev/null
+++ b/obitests/obitools/obiconvert/taxonomy.csv
@@ -0,0 +1,48 @@
+taxid,parent,taxonomic_rank,scientific_name
+taxon:1 [root]@no rank,taxon:1 [root]@no rank,no rank,root
+taxon:131567 [cellular organisms]@cellular root,taxon:1 [root]@no rank,cellular root,cellular organisms
+taxon:2759 [Eukaryota]@domain,taxon:131567 [cellular organisms]@cellular root,domain,Eukaryota
+taxon:33154 [Opisthokonta]@clade,taxon:2759 [Eukaryota]@domain,clade,Opisthokonta
+taxon:33208 [Metazoa]@kingdom,taxon:33154 [Opisthokonta]@clade,kingdom,Metazoa
+taxon:6072 [Eumetazoa]@clade,taxon:33208 [Metazoa]@kingdom,clade,Eumetazoa
+taxon:33213 [Bilateria]@clade,taxon:6072 [Eumetazoa]@clade,clade,Bilateria
+taxon:33511 [Deuterostomia]@clade,taxon:33213 [Bilateria]@clade,clade,Deuterostomia
+taxon:7711 [Chordata]@phylum,taxon:33511 [Deuterostomia]@clade,phylum,Chordata
+taxon:89593 [Craniata]@subphylum,taxon:7711 [Chordata]@phylum,subphylum,Craniata
+taxon:7742 [Vertebrata]@clade,taxon:89593 [Craniata]@subphylum,clade,Vertebrata
+taxon:7776 [Gnathostomata]@clade,taxon:7742 [Vertebrata]@clade,clade,Gnathostomata
+taxon:117570 [Teleostomi]@clade,taxon:7776 [Gnathostomata]@clade,clade,Teleostomi
+taxon:117571 [Euteleostomi]@clade,taxon:117570 [Teleostomi]@clade,clade,Euteleostomi
+taxon:8287 [Sarcopterygii]@superclass,taxon:117571 [Euteleostomi]@clade,superclass,Sarcopterygii
+taxon:1338369 [Dipnotetrapodomorpha]@clade,taxon:8287 [Sarcopterygii]@superclass,clade,Dipnotetrapodomorpha
+taxon:32523 [Tetrapoda]@clade,taxon:1338369 [Dipnotetrapodomorpha]@clade,clade,Tetrapoda
+taxon:32524 [Amniota]@clade,taxon:32523 [Tetrapoda]@clade,clade,Amniota
+taxon:40674 [Mammalia]@class,taxon:32524 [Amniota]@clade,class,Mammalia
+taxon:32525 [Theria]@clade,taxon:40674 [Mammalia]@class,clade,Theria
+taxon:9347 [Eutheria]@clade,taxon:32525 [Theria]@clade,clade,Eutheria
+taxon:1437010 [Boreoeutheria]@clade,taxon:9347 [Eutheria]@clade,clade,Boreoeutheria
+taxon:314146 [Euarchontoglires]@superorder,taxon:1437010 [Boreoeutheria]@clade,superorder,Euarchontoglires
+taxon:314145 [Laurasiatheria]@superorder,taxon:1437010 [Boreoeutheria]@clade,superorder,Laurasiatheria
+taxon:33554 [Carnivora]@order,taxon:314145 [Laurasiatheria]@superorder,order,Carnivora
+taxon:91561 [Artiodactyla]@order,taxon:314145 [Laurasiatheria]@superorder,order,Artiodactyla
+taxon:314147 [Glires]@clade,taxon:314146 [Euarchontoglires]@superorder,clade,Glires
+taxon:9845 [Ruminantia]@suborder,taxon:91561 [Artiodactyla]@order,suborder,Ruminantia
+taxon:35500 [Pecora]@infraorder,taxon:9845 [Ruminantia]@suborder,infraorder,Pecora
+taxon:9989 [Rodentia]@order,taxon:314147 [Glires]@clade,order,Rodentia
+taxon:379584 [Caniformia]@suborder,taxon:33554 [Carnivora]@order,suborder,Caniformia
+taxon:9608 [Canidae]@family,taxon:379584 [Caniformia]@suborder,family,Canidae
+taxon:9850 [Cervidae]@family,taxon:35500 [Pecora]@infraorder,family,Cervidae
+taxon:9881 [Odocoileinae]@subfamily,taxon:9850 [Cervidae]@family,subfamily,Odocoileinae
+taxon:33553 [Sciuromorpha]@suborder,taxon:9989 [Rodentia]@order,suborder,Sciuromorpha
+taxon:55153 [Sciuridae]@family,taxon:33553 [Sciuromorpha]@suborder,family,Sciuridae
+taxon:34878 [Cervinae]@subfamily,taxon:9850 [Cervidae]@family,subfamily,Cervinae
+taxon:9611 [Canis]@genus,taxon:9608 [Canidae]@family,genus,Canis
+taxon:9857 [Capreolus]@genus,taxon:9881 [Odocoileinae]@subfamily,genus,Capreolus
+taxon:9612 [Canis lupus]@species,taxon:9611 [Canis]@genus,species,Canis lupus
+taxon:337726 [Xerinae]@subfamily,taxon:55153 [Sciuridae]@family,subfamily,Xerinae
+taxon:9859 [Cervus]@genus,taxon:34878 [Cervinae]@subfamily,genus,Cervus
+taxon:337730 [Marmotini]@tribe,taxon:337726 [Xerinae]@subfamily,tribe,Marmotini
+taxon:9992 [Marmota]@genus,taxon:337730 [Marmotini]@tribe,genus,Marmota
+taxon:9860 [Cervus elaphus]@species,taxon:9859 [Cervus]@genus,species,Cervus elaphus
+taxon:9615 [Canis lupus familiaris]@subspecies,taxon:9612 [Canis lupus]@species,subspecies,Canis lupus familiaris
+taxon:9858 [Capreolus capreolus]@species,taxon:9857 [Capreolus]@genus,species,Capreolus capreolus
diff --git a/obitests/obitools/obiconvert/test.sh b/obitests/obitools/obiconvert/test.sh
index 7fd72c1..a55cdec 100755
--- a/obitests/obitools/obiconvert/test.sh
+++ b/obitests/obitools/obiconvert/test.sh
@@ -44,7 +44,7 @@ cleanup() {
     rm -rf "$TMPDIR"  # Suppress the temporary directory
 
     if [ $failed -gt 0 ]; then
-       log "$TEST_NAME tests failed" 
+       log "$TEST_NAME tests failed"
         log
         log
        exit 1
@@ -60,10 +60,10 @@ log() {
     echo -e "[$TEST_NAME @ $(date)] $*" 1>&2
 }
 
-log "Testing $TEST_NAME..." 
-log "Test directory is $TEST_DIR" 
-log "obitools directory is $OBITOOLS_DIR" 
-log "Temporary directory is $TMPDIR" 
+log "Testing $TEST_NAME..."
+log "Test directory is $TEST_DIR"
+log "obitools directory is $OBITOOLS_DIR"
+log "Temporary directory is $TMPDIR"
 log "files: $(find $TEST_DIR | awk -F'/' '{print $NF}' | tail -n +2)"
 
 ######################################################################
@@ -94,12 +94,12 @@ log "files: $(find $TEST_DIR | awk -F'/' '{print $NF}' | tail -n +2)"
 
 
 ((ntest++))
-if $CMD -h > "${TMPDIR}/help.txt" 2>&1 
+if $CMD -h > "${TMPDIR}/help.txt" 2>&1
 then
-    log "$MCMD: printing help OK" 
+    log "$MCMD: printing help OK"
     ((success++))
 else
-    log "$MCMD: printing help failed" 
+    log "$MCMD: printing help failed"
     ((failed++))
 fi
 
@@ -108,15 +108,15 @@ fi
 if obiconvert -Z "${TEST_DIR}/gbpln1088.4Mb.fasta.gz" \
                  > "${TMPDIR}/xxx.fasta.gz" && \
    zdiff "${TEST_DIR}/gbpln1088.4Mb.fasta.gz" \
-                 "${TMPDIR}/xxx.fasta.gz" 
+                 "${TMPDIR}/xxx.fasta.gz"
 then
-    log "$MCMD: converting large fasta file to fasta OK" 
+    log "$MCMD: converting large fasta file to fasta OK"
     ((success++))
 else
-    log "$MCMD: converting large fasta file to fasta failed" 
+    log "$MCMD: converting large fasta file to fasta failed"
     ((failed++))
 fi
- 
+
 ((ntest++))
 if obiconvert -Z --fastq-output \
               "${TEST_DIR}/gbpln1088.4Mb.fasta.gz" \
@@ -125,15 +125,139 @@ if obiconvert -Z --fastq-output \
               "${TMPDIR}/xxx.fastq.gz" \
               > "${TMPDIR}/yyy.fasta.gz" && \
    zdiff "${TEST_DIR}/gbpln1088.4Mb.fasta.gz" \
-                 "${TMPDIR}/yyy.fasta.gz" 
+                 "${TMPDIR}/yyy.fasta.gz"
 then
-    log "$MCMD: converting large file between fasta and fastq OK" 
+    log "$MCMD: converting large file between fasta and fastq OK"
     ((success++))
 else
-    log "$MCMD: converting large file between fasta and fastq failed" 
+    log "$MCMD: converting large file between fasta and fastq failed"
     ((failed++))
 fi
 
+
+# ------------------------------------------------------------------
+# --raw-taxid tests (no taxonomy loaded)
+# ------------------------------------------------------------------
+
+# Running test
+((ntest++))
+if obiconvert --raw-taxid "${TEST_DIR}/out_ecotag.fasta" \
+              > "${TMPDIR}/raw_taxid.fasta" 2>/dev/null
+then
+    log "$MCMD --raw-taxid: running OK"
+    ((success++))
+else
+    log "$MCMD --raw-taxid: running failed"
+    ((failed++))
+fi
+
+# Taxids must be bare numbers — no full-format "taxon:ID [Name]@rank" strings
+((ntest++))
+if grep '"taxid"' "${TMPDIR}/raw_taxid.fasta" | grep -qv '"taxid":"[0-9][0-9]*"'
+then
+    log "$MCMD --raw-taxid: taxid format check failed (full-format taxid found)"
+    ((failed++))
+else
+    log "$MCMD --raw-taxid: taxid format OK (all taxids are bare numbers)"
+    ((success++))
+fi
+
+# --raw-taxid is idempotent: piping through a second obiconvert --raw-taxid must
+# produce bit-for-bit identical output.
+((ntest++))
+if obiconvert --raw-taxid "${TMPDIR}/raw_taxid.fasta" \
+              > "${TMPDIR}/raw_taxid2.fasta" 2>/dev/null
+then
+    log "$MCMD --raw-taxid piped: running OK"
+    ((success++))
+else
+    log "$MCMD --raw-taxid piped: running failed"
+    ((failed++))
+fi
+
+((ntest++))
+if diff "${TMPDIR}/raw_taxid.fasta" \
+        "${TMPDIR}/raw_taxid2.fasta" > /dev/null
+then
+    log "$MCMD --raw-taxid piped: idempotency OK"
+    ((success++))
+else
+    log "$MCMD --raw-taxid piped: idempotency failed (outputs differ)"
+    ((failed++))
+fi
+
+
+# ------------------------------------------------------------------
+# --taxonomy tests (full-format taxid, no --raw-taxid)
+# ------------------------------------------------------------------
+
+# Running test
+((ntest++))
+if obiconvert --taxonomy "${TEST_DIR}/taxonomy.csv" \
+              "${TEST_DIR}/out_ecotag.fasta" \
+              > "${TMPDIR}/taxo.fasta" 2>/dev/null
+then
+    log "$MCMD --taxonomy: running OK"
+    ((success++))
+else
+    log "$MCMD --taxonomy: running failed"
+    ((failed++))
+fi
+
+# Taxids must be in full "taxon:ID [Name]@rank" format
+((ntest++))
+if grep '"taxid"' "${TMPDIR}/taxo.fasta" | grep -q '"taxid":"taxon:[0-9]'
+then
+    log "$MCMD --taxonomy: taxid format OK (full-format taxids present)"
+    ((success++))
+else
+    log "$MCMD --taxonomy: taxid format check failed (no full-format taxid found)"
+    ((failed++))
+fi
+
+
+# ------------------------------------------------------------------
+# --raw-taxid --taxonomy tests
+# ------------------------------------------------------------------
+
+# Running test
+((ntest++))
+if obiconvert --raw-taxid --taxonomy "${TEST_DIR}/taxonomy.csv" \
+              "${TEST_DIR}/out_ecotag.fasta" \
+              > "${TMPDIR}/raw_taxid_taxo.fasta" 2>/dev/null
+then
+    log "$MCMD --raw-taxid --taxonomy: running OK"
+    ((success++))
+else
+    log "$MCMD --raw-taxid --taxonomy: running failed"
+    ((failed++))
+fi
+
+# Taxids must be bare numbers even when taxonomy is loaded
+((ntest++))
+if grep '"taxid"' "${TMPDIR}/raw_taxid_taxo.fasta" | grep -qv '"taxid":"[0-9][0-9]*"'
+then
+    log "$MCMD --raw-taxid --taxonomy: taxid format check failed (full-format taxid found)"
+    ((failed++))
+else
+    log "$MCMD --raw-taxid --taxonomy: taxid format OK (all taxids are bare numbers)"
+    ((success++))
+fi
+
+# --raw-taxid with or without taxonomy must yield identical taxid values
+((ntest++))
+if diff <(grep '"taxid"' "${TMPDIR}/raw_taxid.fasta" | grep -o '"taxid":"[^"]*"' | sort) \
+        <(grep '"taxid"' "${TMPDIR}/raw_taxid_taxo.fasta" | grep -o '"taxid":"[^"]*"' | sort) \
+        > /dev/null
+then
+    log "$MCMD --raw-taxid vs --raw-taxid --taxonomy: taxid values match OK"
+    ((success++))
+else
+    log "$MCMD --raw-taxid vs --raw-taxid --taxonomy: taxid values differ (unexpected)"
+    ((failed++))
+fi
+
+
 #########################################
 #
 # At the end of the tests
diff --git a/obitests/obitools/obiconvert/xxx b/obitests/obitools/obiconvert/xxx
new file mode 100644
index 0000000..330e57a
--- /dev/null
+++ b/obitests/obitools/obiconvert/xxx
@@ -0,0 +1,24 @@
+>HELIUM_000100422_612GNAAXX:7:118:3572:14633#0/1_sub[28..126] {"count":10172,"merged_sample":{"26a_F040644":10172},"obitag_bestid":0.9797979797979798,"obitag_bestmatch":"AY227529","obitag_match_count":1,"obitag_rank":"genus","obitag_similarity_method":"lcs","taxid":"taxon:9992 [Marmota]@genus"}
+ttagccctaaacataaacattcaataaacaagaatgttcgccagagtactactagcaaca
+gcctgaaactcaaaggacttggcggtgctttacatccct
+>HELIUM_000100422_612GNAAXX:7:99:9351:13090#0/1_sub[28..127] {"count":260,"merged_sample":{"29a_F260619":260},"obitag_bestid":0.9405940594059405,"obitag_bestmatch":"AF154263","obitag_match_count":9,"obitag_rank":"infraorder","obitag_similarity_method":"lcs","taxid":"taxon:35500 [Pecora]@infraorder"}
+ttagccctaaacacaaataattacacaaacaaaattgttcaccagagtactagcggcaac
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:108:10111:9078#0/1_sub[28..127] {"count":7146,"merged_sample":{"13a_F730603":7146},"obitag_bestid":1,"obitag_bestmatch":"AB245427","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9860 [Cervus elaphus]@species"}
+ctagccttaaacacaaatagttatgcaaacaaaactattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:38:14204:12725#0/1_sub[28..126] {"count":87,"merged_sample":{"26a_F040644":87},"obitag_bestid":0.9494949494949495,"obitag_bestmatch":"AY227530","obitag_match_count":2,"obitag_rank":"tribe","obitag_similarity_method":"lcs","taxid":"taxon:337730 [Marmotini]@tribe"}
+ttagccctaaacataaacattcaataaacaagaatgttcgccagaggactactagcaata
+gcttaaaactcaaaggacttggcggtgctttatatccct
+>HELIUM_000100422_612GNAAXX:7:30:9942:4495#0/1_sub[28..126] {"count":95,"merged_sample":{"26a_F040644":11,"29a_F260619":84},"obitag_bestid":0.9595959595959596,"obitag_bestmatch":"AC187326","obitag_match_count":1,"obitag_rank":"subspecies","obitag_similarity_method":"lcs","taxid":"taxon:9615 [Canis lupus familiaris]@subspecies"}
+ttagccctaaacataagctattccataacaaaataattcgccagagaactactagcaaca
+gattaaacctcaaaggacttggcagtgctttatacccct
+>HELIUM_000100422_612GNAAXX:7:51:16702:19393#0/1_sub[28..127] {"count":12004,"merged_sample":{"15a_F730814":7465,"29a_F260619":4539},"obitag_bestid":1,"obitag_bestmatch":"AJ885202","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9858 [Capreolus capreolus]@species"}
+ttagccctaaacacaagtaattaatataacaaaattattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:84:14502:1617#0/1_sub[28..127] {"count":319,"merged_sample":{"29a_F260619":319},"obitag_bestid":1,"obitag_bestmatch":"AJ972683","obitag_match_count":1,"obitag_rank":"species","obitag_similarity_method":"lcs","taxid":"taxon:9858 [Capreolus capreolus]@species"}
+ttagccctaaacacaagtaattattataacaaaattattcgccagagtactaccggcaat
+agcttaaaactcaaaggacttggcggtgctttataccctt
+>HELIUM_000100422_612GNAAXX:7:50:10637:6527#0/1_sub[28..126] {"count":366,"merged_sample":{"13a_F730603":13,"15a_F730814":5,"26a_F040644":347,"29a_F260619":1},"obitag_bestid":1,"obitag_bestmatch":"AB048590","obitag_match_count":1,"obitag_rank":"genus","obitag_similarity_method":"lcs","taxid":"taxon:9611 [Canis]@genus"}
+ttagccctaaacatagataattttacaacaaaataattcgccagaggactactagcaata
+gcttaaaactcaaaggacttggcggtgctttatatccct
diff --git a/pkg/obiseq/taxonomy_methods.go b/pkg/obiseq/taxonomy_methods.go
index ef1b0d9..e11356d 100644
--- a/pkg/obiseq/taxonomy_methods.go
+++ b/pkg/obiseq/taxonomy_methods.go
@@ -70,6 +70,12 @@ func (s *BioSequence) SetTaxid(taxid string, rank ...string) {
 				}
 			}
 
+		} else if obidefault.UseRawTaxids() {
+			// Without a loaded taxonomy, extract the bare ID from full-format strings
+			// like "code:12345 [Name]@rank" so that --raw-taxid is honoured everywhere.
+			if _, rawID, _, _, parseErr := obitax.ParseTaxonString(taxid); parseErr == nil {
+				taxid = rawID
+			}
 		}
 	}
 
@@ -177,7 +183,7 @@ func (sequence *BioSequence) SetPath(taxonomy *obitax.Taxonomy) []string {
 	lpath := path.Len() - 1
 
 	for i := lpath; i >= 0; i-- {
-		spath[lpath-i] = path.Get(i).String(taxonomy.Code())
+		spath[lpath-i] = path.Get(i).FullString(taxonomy.Code())
 	}
 
 	sequence.SetAttribute("taxonomic_path", spath)
diff --git a/pkg/obitax/taxonnode.go b/pkg/obitax/taxonnode.go
index e38566c..72bb7e1 100644
--- a/pkg/obitax/taxonnode.go
+++ b/pkg/obitax/taxonnode.go
@@ -29,6 +29,24 @@ type TaxNode struct {
 	alternatenames *map[*string]*string
 }
 
+// FullString returns the full string representation of the TaxNode in the form
+// "taxonomyCode:id [scientificName]@rank", regardless of the UseRawTaxids setting.
+// This is used internally when a parseable format is required (e.g. taxonomic_path).
+func (node *TaxNode) FullString(taxonomyCode string) string {
+	if node.HasScientificName() {
+		return fmt.Sprintf("%s:%v [%s]@%s",
+			taxonomyCode,
+			*node.id,
+			node.ScientificName(),
+			node.Rank(),
+		)
+	}
+
+	return fmt.Sprintf("%s:%v",
+		taxonomyCode,
+		*node.id)
+}
+
 // String returns a string representation of the TaxNode, including the taxonomy code,
 // the node ID, and the scientific name. The output format is "taxonomyCode:id [scientificName]".
 //
@@ -42,19 +60,7 @@ func (node *TaxNode) String(taxonomyCode string) string {
 		return *node.id
 	}
 
-	if node.HasScientificName() {
-		return fmt.Sprintf("%s:%v [%s]@%s",
-			taxonomyCode,
-			*node.id,
-			node.ScientificName(),
-			node.Rank(),
-		)
-	}
-
-	return fmt.Sprintf("%s:%v",
-		taxonomyCode,
-		*node.id)
-
+	return node.FullString(taxonomyCode)
 }
 
 // Id returns the unique identifier of the TaxNode.