diff --git a/docs/ssb_konjunk.rst b/docs/ssb_konjunk.rst
index 649c439..2b31a3d 100644
--- a/docs/ssb_konjunk.rst
+++ b/docs/ssb_konjunk.rst
@@ -26,6 +26,14 @@ ssb\_konjunk.prompts module
    :undoc-members:
    :show-inheritance:
 
+ssb\_konjunk.rounding module
+----------------------------
+
+.. automodule:: ssb_konjunk.rounding
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
 ssb\_konjunk.saving module
 --------------------------
 
@@ -34,26 +42,26 @@ ssb\_konjunk.saving module
    :undoc-members:
    :show-inheritance:
 
-ssb\_konjunk.timestamp module
------------------------------
+ssb\_konjunk.statbank\_format module
+------------------------------------
 
-.. automodule:: ssb_konjunk.timestamp
+.. automodule:: ssb_konjunk.statbank_format
    :members:
    :undoc-members:
    :show-inheritance:
 
-ssb\_konjunk.xml\_handling module
----------------------------------
+ssb\_konjunk.timestamp module
+-----------------------------
 
-.. automodule:: ssb_konjunk.xml_handling
+.. automodule:: ssb_konjunk.timestamp
    :members:
    :undoc-members:
    :show-inheritance:
 
-ssb\_konjunk.rounding module
+ssb\_konjunk.xml\_handling module
 ---------------------------------
 
-.. automodule:: ssb_konjunk.rounding
+.. automodule:: ssb_konjunk.xml_handling
    :members:
    :undoc-members:
    :show-inheritance:
diff --git a/pyproject.toml b/pyproject.toml
index 162a5aa..3edc922 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ssb-konjunk"
-version = "0.1.13"
+version = "0.1.14"
 description = "SSB Konjunk"
 authors = ["Edvard Garmannslund <ged@ssb.no>"]
 license = "MIT"
diff --git a/src/ssb_konjunk/prompts.py b/src/ssb_konjunk/prompts.py
index 27dc0f9..1bfaa7e 100644
--- a/src/ssb_konjunk/prompts.py
+++ b/src/ssb_konjunk/prompts.py
@@ -335,3 +335,24 @@ def publishing_date() -> str:
     date = set_publishing_date()
     ok_date = check_publishing_date(date)
     return ok_date
+
+
+def get_previous_month(year: str | int, month: str | int) -> list[int]:
+    """Turn e.g. month 01 year 2023 into month 12 and year 2022.
+
+    Args:
+        year: the current year YYYY.
+        month: the current month MM.
+
+    Returns:
+        list[int]: the previous month with year.
+    """
+    prev_month = int(month) - 1
+
+    if prev_month != 0:
+        prev_year = int(year)
+    else:
+        prev_month = 12
+        prev_year = int(year) - 1
+
+    return [prev_year, prev_month]
diff --git a/tests/test_prompts.py b/tests/test_prompts.py
index a096bb2..9ba2f42 100644
--- a/tests/test_prompts.py
+++ b/tests/test_prompts.py
@@ -5,6 +5,7 @@
 from ssb_konjunk.prompts import bump_quarter
 from ssb_konjunk.prompts import days_in_month
 from ssb_konjunk.prompts import extract_start_end_dates
+from ssb_konjunk.prompts import get_previous_month
 from ssb_konjunk.prompts import iterate_years_months
 from ssb_konjunk.prompts import validate_month
 
@@ -148,3 +149,13 @@ def test_validate_month() -> None:
 
     assert validate_month(10) == "10"
     assert validate_month("10") == "10"
+
+
+def test_get_previous_month() -> None:
+    prev_month = get_previous_month(2022, 1)
+    assert prev_month[0] == 2021, f"Previous year for previous month: {prev_month[0]}"
+    assert prev_month[1] == 12, f"Previous month for previous month: {prev_month[1]}"
+
+    prev_month = get_previous_month(2022, 12)
+    assert prev_month[0] == 2022, f"Previous year for previous month: {prev_month[0]}"
+    assert prev_month[1] == 11, f"Previous month for previous month: {prev_month[1]}"