The UK household admin calendar, month by month

Nobody has all of this in their head at once, and nor should they. Household admin has a shape - things that land at similar times each year, things that are cheaper to do at one point than another, things that need doing before they’re urgent - and once you’ve seen that shape, everything on the list feels a little smaller.

What follows is a menu of the admin that actually matters through the year, in the order it tends to arrive. Every home’s version will be different - a rented flat has a different calendar to a house with a car and children - but the pattern of when things land is broadly the same.

January

The month a lot of things come due at once. The self-assessment tax return has to be with HMRC by 31 January (with the tax paid, which is easily missed), Christmas has just landed on the credit card, and the December energy bill is arriving in the middle of the coldest month of the year.

Self-assessment tax return due 31 January. The £100 automatic fine applies from midnight, whether you owe anything or not.
Post-Christmas Direct Debit audit - the trials, subscriptions and one-off purchases from December can all be reviewed now while they’re fresh.
Winter bills. December’s energy usage lands on the January statement, and it’s a real number rather than an estimate.

February

Not much lands in February. Use it to do the things that get harder later.

Car service before Easter. Garages are less busy in February than in March, when Easter break bookings arrive thickly in the weeks before.
Home insurance renewal if the policy runs on a spring cycle. Renewal quotes usually benefit from being shopped - auto-renewal is rarely the cheapest option.

March

The tax year ends in April, so anything that resets on 6 April - the ISA allowance, pension contributions, some benefits thresholds - is worth doing before the deadline lands rather than after.

Use it or lose it: the ISA allowance for the current tax year, £20,000 at the time of writing.
Pension top-ups if you’re planning to make voluntary contributions - the tax-year cutoff matters here too.
Council tax bill for the new financial year is issued in March by the local authority.

April

The new tax year brings a handful of changes at once. It begins on 6 April, and both council tax and utility standing charges usually shift around the same date.

New tax year begins 6 April. Check the tax code on your first payslip after this date.
Council tax instalments restart. If you’re on the 10-month plan, the February and March gap ends now.
Utility standing charge changes typically take effect around this time, both the price-cap update and any tariff-specific adjustments.

May

The first warm weekend of the year, and a good moment to check that the boiler still works before you forget about it for six months. Summer travel is close enough that passports become worth checking now rather than in June.

Passport check for anyone travelling in July or August. Many countries need six months’ validity beyond the travel date. Passport Office queues start lengthening in late May.
Boiler test. Run the heating on for ten minutes on a warm day. A boiler that has stopped working in May is a boiler that gets fixed in August, before the queue.

June

June is when travel admin for July trips gets easier to actually do, and it’s the last cheap window for anything mechanical the car needs before the school-holiday queues start.

Travel insurance. Annual policies are usually cheaper than single-trip if you travel more than twice a year.
GHIC (or the older EHIC) for European trips, applied for at nhs.uk. Free, and covers state-provided emergency healthcare on the same basis as a local.
Car service. Garages fill up rapidly in early July.

July

Summer bills reveal what standing charges are actually costing you when you’re using very little. Energy tariff shopping is at its best now, before autumn demand pulls the good fixes off the market.

Energy tariff shopping. Fixed deals appear in summer and thin out in autumn.
Home insurance’s unoccupied-property window - check the length of any summer trip against the policy limit (often 30 or 60 days).
Summer holiday admin. Post redirected, timer switches, a neighbour with a key.

August

August catches the paperwork you missed in July, plus school-year admin for anyone whose September starts with a uniform order.

Missed July admin - the passport that turned out to be four months from expiry; the travel insurance that nobody bought.
School uniform, PE kit and shoes, for anyone with school-age children. Shops sell out. Online orders that arrive on 3 September are painful.
Autumn fixed tariffs. The best summer deals disappear late August, so this is the last honest window before winter pricing arrives.

September

September is when the routine reasserts itself: back to work, back to school, and a full year of admin lined up in front of you again.

Subscription audit. The trials that got started in summer and never got cancelled; the gym membership; the streaming service that was for one holiday.
Boiler service before October. Gas Safe engineers are dramatically easier to book in September than in mid-October.
Term-year admin for anyone with school-age children - term dates for the whole year, half-term dates, wraparound childcare, ParentPay balance.

October

October is winter-prep month - everything you would rather have sorted before the cold arrives.

Boiler service if the September window slipped.
NHS flu jab. Eligibility is broad; free vaccinations start becoming available now for eligible groups.
Clocks go back on the last Sunday of the month. Timers and thermostat schedules may need adjusting.

November

The month it becomes obvious Christmas is imminent. Home insurance renewals commonly bunch here, and the bank statement is worth a proper look before the December spending pattern kicks in.

Christmas budgeting. Setting a real number now beats reacting to the January statement.
Home insurance renewals for spring-and-autumn cycles typically land in November.
Winter energy check. If you fixed in summer, the fix is doing its job. If you didn’t, the price is whatever the price is.

December

The month things go wrong at the worst time - boilers, roofs, cars. Worth an emergency check now, and worth booking anything urgent before the shutdown.

Emergency contacts refreshed - a plumber, a locksmith, an electrician you would call at 10pm. Most policies now include home emergency cover; know what yours covers.
Bank holiday shutdown. GP surgeries, pharmacies, dentists and many councils close for a stretch. Anything urgent needs booking before the 20th.
The 31 January reminder. The self-assessment deadline is only a month away, and the queues at HMRC’s helpline in mid-January are legendary.

The point of the calendar

Nobody does all of this in a single year. The point of a calendar like this is a sense of the season you are in, and what is actually worth doing this month rather than next.

We built Oosby to hold your version of this list - the specific dates that matter for the way you live, not everyone’s. If the MOT is in March and the home insurance renewal is in October, those are your calendar, and the job of a good admin system is to make sure the right one arrives on the right day.

The rest of the year, it stays out of the way.