Log in

Home office

The £10-a-week rate, calculated without receipts.

HMRC's flat-rate working-from-home allowance, posted to your ledger automatically. Detailed claims for bigger amounts are supported too.

Start free trialSee how it works

Free for 14 days, no credit card

accounts-os.com/home-office
Home OfficeLive
Claim my home office allowance this month
FClaimed: £43.33 at HMRC's flat rate, posted to the ledger. No receipts needed.
FFinn posted £520 a year, no receipts needed.
Live

In short

AccountsOS calculates the HMRC working-from-home flat-rate allowance (£10/week, no receipts required) and posts it to your GL. For founders working from home most weeks, that's £520/year of legitimate deductible expense, applied automatically. Detailed-claim mode for proportional household bills available too.

£10/week
HMRC flat rate
£520/yr
For full-time WFH
No receipts
Required

Everything it does

Flat-rate mode

  • £10/week (HMRC published rate)
  • No receipts required (HMRC rule)
  • Posts monthly to home office expense
  • Tracks YTD

Detailed mode

  • Proportional household bills (electricity, heating, council tax, mortgage interest)
  • Requires receipts / bills
  • Calculator built in
  • Higher annual claim possible

Capabilities at a glance

£10/week HMRC flat rate calculated automatically

Posted to GL each month

Annual £520 (52 weeks) without paperwork

Detailed-claim mode for proportional bills

YTD tracking

Audit log for every claim

How It Works

1

Tell us you WFH

One-time setup in Settings.

2

Posted monthly

£10/week × weeks in the month, posted to home office expense.

3

Or use detailed mode

For higher claims (proportional bills), upload your household bills and we calculate the deductible portion.

4

Reduces CT

Sits as an expense in your P&L; reduces taxable profit and corporation tax.

By the numbers

Auto
Posted
To home office expense GL
Detailed
Mode available
For higher claims
Deductible
Against CT
Reduces corporation tax

Real-world Use Cases

Solo WFH founder

£520/year deduction without thinking about it. Reduces CT by £100–£130 depending on band.

Hybrid worker

Set the WFH days and only those weeks count.

Detailed claim

Proportional household bills if your home office is a defined room and you have higher utility costs.

Why founders pick this over the spreadsheet

Easy money: most founders forget to claim this

No receipts to store

Posted automatically every month

Detailed mode available if your situation justifies it

Frequently Asked Questions

How much can I claim?

HMRC's flat rate is £10/week (was £6 pre-2020, increased). For 52 weeks that's £520/year, no receipts required. Detailed-claim mode (proportional bills) can yield higher amounts but needs evidence.

Do I need receipts for the flat rate?

No: HMRC's whole point with the flat rate is to remove the receipt-keeping burden.

Does it reduce corporation tax?

Yes. The allowance is a deductible business expense, so it reduces taxable profit and the resulting CT.

Can I claim if I only work from home some days?

Yes. Pro-rata. Configure your WFH cadence and we'll only post for those weeks.

Detailed claim mode: when's it worth it?

If your actual home-office costs are materially higher than £520/year (typically a defined room with high utility usage). Chat will help you decide.

Explore more of AccountsOS

Expenses & Mileage

Out-of-pocket spend captured, approved, paid back. HMRC mileage and home office calculated for you.

Mileage Tracking

HMRC mileage at the right rate, automatically.

Corporation Tax

See your tax bill in real time, so it's never a surprise. Filing-ready numbers when you need them.

Ask Finn (AI Chat)

Talk to your books. Ask anything. Finn does the work.

Ready to try Home Office Allowance?

Set up in minutes. Finn works in the background on your books, wherever you're based.

Get Started Free

Free for 14 days, no credit card, cancel anytime