diff --git a/Pipfile b/Pipfile
index 5a44b1828..626ccc962 100644
--- a/Pipfile
+++ b/Pipfile
@@ -5,6 +5,7 @@ name = "pypi"
 
 [packages]
 ago = "~=0.0.95"
+black = "==23.7.0"
 blinker = "~=1.4"
 exceptiongroup = "==1.1.3"
 flask = "~=2.3"
diff --git a/app/__init__.py b/app/__init__.py
index d6c4257bc..ce2c177ca 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -104,18 +104,12 @@ from app.notify_client.organizations_api_client import organizations_client
 from app.notify_client.performance_dashboard_api_client import (
     performance_dashboard_api_client,
 )
-from app.notify_client.platform_stats_api_client import (
-    platform_stats_api_client,
-)
+from app.notify_client.platform_stats_api_client import platform_stats_api_client
 from app.notify_client.provider_client import provider_client
 from app.notify_client.service_api_client import service_api_client
 from app.notify_client.status_api_client import status_api_client
-from app.notify_client.template_folder_api_client import (
-    template_folder_api_client,
-)
-from app.notify_client.template_statistics_api_client import (
-    template_statistics_client,
-)
+from app.notify_client.template_folder_api_client import template_folder_api_client
+from app.notify_client.template_statistics_api_client import template_statistics_client
 from app.notify_client.upload_api_client import upload_api_client
 from app.notify_client.user_api_client import user_api_client
 from app.url_converters import (
diff --git a/app/formatters.py b/app/formatters.py
index c1eadb657..113b374a4 100644
--- a/app/formatters.py
+++ b/app/formatters.py
@@ -14,10 +14,7 @@ from flask import Markup, url_for
 from notifications_utils.field import Field
 from notifications_utils.formatters import make_quotes_smart
 from notifications_utils.formatters import nl2br as utils_nl2br
-from notifications_utils.recipients import (
-    InvalidPhoneError,
-    validate_phone_number,
-)
+from notifications_utils.recipients import InvalidPhoneError, validate_phone_number
 from notifications_utils.take import Take
 
 from app.utils.time import parse_naive_dt
diff --git a/app/main/forms.py b/app/main/forms.py
index aa46da166..2cf8c723d 100644
--- a/app/main/forms.py
+++ b/app/main/forms.py
@@ -12,10 +12,7 @@ from flask_wtf.file import FileField as FileField_wtf
 from flask_wtf.file import FileSize
 from notifications_utils.formatters import strip_all_whitespace
 from notifications_utils.insensitive_dict import InsensitiveDict
-from notifications_utils.recipients import (
-    InvalidPhoneError,
-    validate_phone_number,
-)
+from notifications_utils.recipients import InvalidPhoneError, validate_phone_number
 from werkzeug.utils import cached_property
 from wtforms import (
     BooleanField,
diff --git a/app/main/validators.py b/app/main/validators.py
index dafffbdfd..26e8c838f 100644
--- a/app/main/validators.py
+++ b/app/main/validators.py
@@ -3,10 +3,7 @@ from abc import ABC, abstractmethod
 
 from notifications_utils.field import Field
 from notifications_utils.formatters import formatted_list
-from notifications_utils.recipients import (
-    InvalidEmailError,
-    validate_email_address,
-)
+from notifications_utils.recipients import InvalidEmailError, validate_email_address
 from notifications_utils.sanitise_text import SanitiseSMS
 from wtforms import ValidationError
 
diff --git a/app/main/views/api_keys.py b/app/main/views/api_keys.py
index 7b88656d3..2df60d7e8 100644
--- a/app/main/views/api_keys.py
+++ b/app/main/views/api_keys.py
@@ -1,12 +1,4 @@
-from flask import (
-    Markup,
-    abort,
-    flash,
-    redirect,
-    render_template,
-    request,
-    url_for,
-)
+from flask import Markup, abort, flash, redirect, render_template, request, url_for
 from flask_login import current_user
 
 from app import (
diff --git a/app/main/views/dashboard.py b/app/main/views/dashboard.py
index 60404d781..0b7394d68 100644
--- a/app/main/views/dashboard.py
+++ b/app/main/views/dashboard.py
@@ -3,15 +3,7 @@ from datetime import datetime
 from functools import partial
 from itertools import groupby
 
-from flask import (
-    Response,
-    abort,
-    jsonify,
-    render_template,
-    request,
-    session,
-    url_for,
-)
+from flask import Response, abort, jsonify, render_template, request, session, url_for
 from flask_login import current_user
 from notifications_utils.recipients import format_phone_number_human_readable
 from werkzeug.utils import redirect
diff --git a/app/main/views/feedback.py b/app/main/views/feedback.py
index d117affbe..e654d2b3d 100644
--- a/app/main/views/feedback.py
+++ b/app/main/views/feedback.py
@@ -4,19 +4,12 @@ import pytz
 from flask import redirect, render_template, request, session, url_for
 from flask_login import current_user
 from govuk_bank_holidays.bank_holidays import BankHolidays
-from notifications_utils.clients.zendesk.zendesk_client import (
-    NotifySupportTicket,
-)
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 from app import convert_to_boolean, current_service
 from app.extensions import zendesk_client
 from app.main import main
-from app.main.forms import (
-    FeedbackOrProblem,
-    SupportRedirect,
-    SupportType,
-    Triage,
-)
+from app.main.forms import FeedbackOrProblem, SupportRedirect, SupportType, Triage
 from app.models.feedback import (
     GENERAL_TICKET_TYPE,
     PROBLEM_TICKET_TYPE,
diff --git a/app/main/views/index.py b/app/main/views/index.py
index 8ec0fc3ff..c0f293fa2 100644
--- a/app/main/views/index.py
+++ b/app/main/views/index.py
@@ -14,10 +14,7 @@ from app import email_branding_client, status_api_client
 from app.main import main
 from app.main.forms import FieldWithNoneOption
 from app.main.views.pricing import CURRENT_SMS_RATE
-from app.main.views.sub_navigation_dictionaries import (
-    features_nav,
-    using_notify_nav,
-)
+from app.main.views.sub_navigation_dictionaries import features_nav, using_notify_nav
 from app.utils.user import user_is_logged_in
 
 
diff --git a/app/main/views/invites.py b/app/main/views/invites.py
index a0da1ad66..44bc03ce0 100644
--- a/app/main/views/invites.py
+++ b/app/main/views/invites.py
@@ -5,13 +5,7 @@ from markupsafe import Markup
 from app.main import main
 from app.models.organization import Organization
 from app.models.service import Service
-from app.models.user import (
-    InvitedOrgUser,
-    InvitedUser,
-    OrganizationUsers,
-    User,
-    Users,
-)
+from app.models.user import InvitedOrgUser, InvitedUser, OrganizationUsers, User, Users
 
 
 @main.route("/invitation/<token>")
diff --git a/app/main/views/jobs.py b/app/main/views/jobs.py
index baf9655ef..12e2f0f35 100644
--- a/app/main/views/jobs.py
+++ b/app/main/views/jobs.py
@@ -14,10 +14,7 @@ from flask import (
     url_for,
 )
 from flask_login import current_user
-from notifications_utils.template import (
-    EmailPreviewTemplate,
-    SMSBodyPreviewTemplate,
-)
+from notifications_utils.template import EmailPreviewTemplate, SMSBodyPreviewTemplate
 
 from app import (
     current_service,
diff --git a/app/main/views/manage_users.py b/app/main/views/manage_users.py
index cfd6b5488..977e04d1a 100644
--- a/app/main/views/manage_users.py
+++ b/app/main/views/manage_users.py
@@ -1,12 +1,4 @@
-from flask import (
-    abort,
-    flash,
-    redirect,
-    render_template,
-    request,
-    session,
-    url_for,
-)
+from flask import abort, flash, redirect, render_template, request, session, url_for
 from flask_login import current_user
 from notifications_python_client.errors import HTTPError
 
diff --git a/app/main/views/pricing.py b/app/main/views/pricing.py
index bdbc0a454..a5a325d7d 100644
--- a/app/main/views/pricing.py
+++ b/app/main/views/pricing.py
@@ -1,8 +1,6 @@
 from flask import current_app, render_template
 from flask_login import current_user
-from notifications_utils.international_billing_rates import (
-    INTERNATIONAL_BILLING_RATES,
-)
+from notifications_utils.international_billing_rates import INTERNATIONAL_BILLING_RATES
 
 from app.main import main
 from app.main.forms import SearchByNameForm
diff --git a/app/main/views/send.py b/app/main/views/send.py
index b96479d58..c4b56c301 100644
--- a/app/main/views/send.py
+++ b/app/main/views/send.py
@@ -42,11 +42,7 @@ from app.s3_client.s3_csv_client import (
     s3upload,
     set_metadata_on_csv_upload,
 )
-from app.utils import (
-    PermanentRedirect,
-    should_skip_template_page,
-    unicode_truncate,
-)
+from app.utils import PermanentRedirect, should_skip_template_page, unicode_truncate
 from app.utils.csv import Spreadsheet, get_errors_for_csv
 from app.utils.templates import get_template
 from app.utils.user import user_has_permissions
diff --git a/app/main/views/service_settings.py b/app/main/views/service_settings.py
index 855233832..cee6bc353 100644
--- a/app/main/views/service_settings.py
+++ b/app/main/views/service_settings.py
@@ -13,9 +13,7 @@ from flask import (
 )
 from flask_login import current_user
 from notifications_python_client.errors import HTTPError
-from notifications_utils.clients.zendesk.zendesk_client import (
-    NotifySupportTicket,
-)
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 from app import (
     billing_api_client,
diff --git a/app/main/views/templates.py b/app/main/views/templates.py
index 84958807c..8a1e99130 100644
--- a/app/main/views/templates.py
+++ b/app/main/views/templates.py
@@ -1,14 +1,6 @@
 from functools import partial
 
-from flask import (
-    abort,
-    flash,
-    jsonify,
-    redirect,
-    render_template,
-    request,
-    url_for,
-)
+from flask import abort, flash, jsonify, redirect, render_template, request, url_for
 from flask_login import current_user
 from notifications_python_client.errors import HTTPError
 from notifications_utils import SMS_CHAR_COUNT_LIMIT
diff --git a/app/main/views/two_factor.py b/app/main/views/two_factor.py
index 1f9e52ebb..ffa429a1c 100644
--- a/app/main/views/two_factor.py
+++ b/app/main/views/two_factor.py
@@ -1,13 +1,6 @@
 import json
 
-from flask import (
-    current_app,
-    redirect,
-    render_template,
-    request,
-    session,
-    url_for,
-)
+from flask import current_app, redirect, render_template, request, session, url_for
 from flask_login import current_user
 from itsdangerous import SignatureExpired
 from notifications_utils.url_safe_token import check_token
diff --git a/app/main/views/verify.py b/app/main/views/verify.py
index 25e5d2df0..6f3470a74 100644
--- a/app/main/views/verify.py
+++ b/app/main/views/verify.py
@@ -1,14 +1,6 @@
 import json
 
-from flask import (
-    abort,
-    current_app,
-    flash,
-    redirect,
-    render_template,
-    session,
-    url_for,
-)
+from flask import abort, current_app, flash, redirect, render_template, session, url_for
 from itsdangerous import SignatureExpired
 from notifications_utils.url_safe_token import check_token
 
diff --git a/app/models/organization.py b/app/models/organization.py
index 2e5977a7d..766ff052b 100644
--- a/app/models/organization.py
+++ b/app/models/organization.py
@@ -2,12 +2,7 @@ from collections import OrderedDict
 
 from werkzeug.utils import cached_property
 
-from app.models import (
-    JSONModel,
-    ModelList,
-    SerialisedModelCollection,
-    SortByNameMixin,
-)
+from app.models import JSONModel, ModelList, SerialisedModelCollection, SortByNameMixin
 from app.notify_client.email_branding_client import email_branding_client
 from app.notify_client.organizations_api_client import organizations_client
 
diff --git a/app/models/service.py b/app/models/service.py
index 9bd5cc1b4..a32161966 100644
--- a/app/models/service.py
+++ b/app/models/service.py
@@ -3,12 +3,7 @@ from notifications_utils.serialised_model import SerialisedModelCollection
 from werkzeug.utils import cached_property
 
 from app.models import JSONModel, SortByNameMixin
-from app.models.job import (
-    ImmediateJobs,
-    PaginatedJobs,
-    PaginatedUploads,
-    ScheduledJobs,
-)
+from app.models.job import ImmediateJobs, PaginatedJobs, PaginatedUploads, ScheduledJobs
 from app.models.organization import Organization
 from app.models.user import InvitedUsers, User, Users
 from app.notify_client.api_key_api_client import api_key_api_client
@@ -19,9 +14,7 @@ from app.notify_client.invite_api_client import invite_api_client
 from app.notify_client.job_api_client import job_api_client
 from app.notify_client.organizations_api_client import organizations_client
 from app.notify_client.service_api_client import service_api_client
-from app.notify_client.template_folder_api_client import (
-    template_folder_api_client,
-)
+from app.notify_client.template_folder_api_client import template_folder_api_client
 from app.utils import get_default_sms_sender
 
 
diff --git a/app/utils/templates.py b/app/utils/templates.py
index 5c412047a..b099d0ebc 100644
--- a/app/utils/templates.py
+++ b/app/utils/templates.py
@@ -1,7 +1,4 @@
-from notifications_utils.template import (
-    EmailPreviewTemplate,
-    SMSPreviewTemplate,
-)
+from notifications_utils.template import EmailPreviewTemplate, SMSPreviewTemplate
 
 
 def get_sample_template(template_type):
diff --git a/setup.cfg b/setup.cfg
index 1204e5f05..fd911a0e7 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,11 +2,12 @@
 norecursedirs=node_modules bower_components
 xfail_strict=true
 
-[isort]
-line_length=80
-indent='    '
-multi_line_output=3
-known_third_party=notifications_utils,notifications_python_client
-known_first_party=app,tests
-include_trailing_comma=True
-use_parentheses=True
+[tool:isort]
+profile = black
+multi_line_output = 3
+
+
+[tool:flake8]
+exclude = venv*,__pycache__,node_modules,cache,build
+max-line-length = 120
+extend_ignore=B306, W504, E203
\ No newline at end of file
diff --git a/tests/app/main/views/service_settings/test_email_branding_requests.py b/tests/app/main/views/service_settings/test_email_branding_requests.py
index a94e38dbc..90a77dedb 100644
--- a/tests/app/main/views/service_settings/test_email_branding_requests.py
+++ b/tests/app/main/views/service_settings/test_email_branding_requests.py
@@ -2,9 +2,7 @@ from unittest.mock import ANY, PropertyMock
 
 import pytest
 from flask import url_for
-from notifications_utils.clients.zendesk.zendesk_client import (
-    NotifySupportTicket,
-)
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 from tests import sample_uuid
 from tests.conftest import ORGANISATION_ID, SERVICE_ONE_ID, normalize_spaces
diff --git a/tests/app/main/views/service_settings/test_service_settings.py b/tests/app/main/views/service_settings/test_service_settings.py
index a9444bf89..ccc5414fd 100644
--- a/tests/app/main/views/service_settings/test_service_settings.py
+++ b/tests/app/main/views/service_settings/test_service_settings.py
@@ -8,9 +8,7 @@ import pytest
 from flask import url_for
 from freezegun import freeze_time
 from notifications_python_client.errors import HTTPError
-from notifications_utils.clients.zendesk.zendesk_client import (
-    NotifySupportTicket,
-)
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 import app
 from tests import (
diff --git a/tests/app/main/views/test_feedback.py b/tests/app/main/views/test_feedback.py
index 4f2f1ee4d..fe3a6996c 100644
--- a/tests/app/main/views/test_feedback.py
+++ b/tests/app/main/views/test_feedback.py
@@ -4,9 +4,7 @@ from unittest.mock import ANY, PropertyMock
 import pytest
 from flask import url_for
 from freezegun import freeze_time
-from notifications_utils.clients.zendesk.zendesk_client import (
-    NotifySupportTicket,
-)
+from notifications_utils.clients.zendesk.zendesk_client import NotifySupportTicket
 
 from app.main.views.feedback import in_business_hours
 from app.models.feedback import (
diff --git a/tests/app/main/views/test_send.py b/tests/app/main/views/test_send.py
index a63beb59c..7f4e4d7b5 100644
--- a/tests/app/main/views/test_send.py
+++ b/tests/app/main/views/test_send.py
@@ -15,17 +15,9 @@ from notifications_python_client.errors import HTTPError
 from notifications_utils.recipients import RecipientCSV
 from notifications_utils.template import SMSPreviewTemplate
 from xlrd.biffh import XLRDError
-from xlrd.xldate import (
-    XLDateAmbiguous,
-    XLDateError,
-    XLDateNegative,
-    XLDateTooLarge,
-)
+from xlrd.xldate import XLDateAmbiguous, XLDateError, XLDateNegative, XLDateTooLarge
 
-from tests import (
-    validate_route_permission,
-    validate_route_permission_with_client,
-)
+from tests import validate_route_permission, validate_route_permission_with_client
 from tests.conftest import (
     SERVICE_ONE_ID,
     create_active_caseworking_user,
diff --git a/tests/app/notify_client/test_template_statistics_client.py b/tests/app/notify_client/test_template_statistics_client.py
index 8640dd3a0..9f24c19a6 100644
--- a/tests/app/notify_client/test_template_statistics_client.py
+++ b/tests/app/notify_client/test_template_statistics_client.py
@@ -1,8 +1,6 @@
 import uuid
 
-from app.notify_client.template_statistics_api_client import (
-    TemplateStatisticsApiClient,
-)
+from app.notify_client.template_statistics_api_client import TemplateStatisticsApiClient
 
 
 def test_template_statistics_client_calls_correct_api_endpoint_for_service(mocker, api_user_active):
diff --git a/tests/app/test_navigation.py b/tests/app/test_navigation.py
index ee254abf9..ab1b3b036 100644
--- a/tests/app/test_navigation.py
+++ b/tests/app/test_navigation.py
@@ -9,6 +9,7 @@ from app.navigation import (
     Navigation,
     OrgNavigation,
 )
+
 # from tests.conftest import ORGANISATION_ID, SERVICE_ONE_ID, normalize_spaces
 from tests.conftest import SERVICE_ONE_ID, normalize_spaces
 
diff --git a/tests/app/test_statistics_utils.py b/tests/app/test_statistics_utils.py
index 9ce41a8f0..91e5f5313 100644
--- a/tests/app/test_statistics_utils.py
+++ b/tests/app/test_statistics_utils.py
@@ -1,11 +1,7 @@
 import pytest
 
 from app.models.job import Job
-from app.statistics_utils import (
-    add_rates_to,
-    statistics_by_state,
-    sum_of_statistics,
-)
+from app.statistics_utils import add_rates_to, statistics_by_state, sum_of_statistics
 
 
 @pytest.mark.parametrize('delivery_statistics', [