What bookkeeping does a UK landlord actually need?
Landlord bookkeeping is more structured than most people realise. HMRC requires you to keep accurate records of all rental income and allowable expenses for at least five years after the Self Assessment filing deadline. If you own multiple properties, each property's income and costs must be tracked separately for the SA105 property income supplementary pages.
The core tasks every landlord faces each year include:
- Recording gross rental income for each property each month
- Tracking allowable expenses: agent fees, repairs and maintenance, insurance, service charges, ground rent, and professional fees
- Calculating mortgage interest separately (no longer fully deductible — see Section 24 below)
- Tracking capital expenditure separately from revenue expenditure
- Reconciling bank statements monthly against rent receipts and expense payments
- Preparing year-end summaries for Self Assessment SA105 completion
For landlords with three or more properties, this is easily 5–8 hours of work per month. An Indian bookkeeping service handles all of this at a predictable monthly cost, freeing you to focus on managing the properties themselves.
Section 24 and the mortgage interest restriction
Section 24 of the Finance (No. 2) Act 2015 phased out the ability for individual landlords to deduct mortgage interest as a business expense. Since April 2020, the full restriction has been in force: you pay tax on your gross rental income, then receive a 20% tax credit on your finance costs. Higher and additional rate taxpayers are materially worse off under Section 24 compared to the old rules.
This makes accurate bookkeeping more important, not less. Your Indian CA firm needs to track:
- Total gross rental income per property
- All allowable revenue expenses (not mortgage interest)
- Total finance costs separately — mortgage interest, arrangement fees, and any loan interest on a buy-to-let
- The 20% tax credit calculation for the year-end figures
If you hold properties in a limited company rather than personally, Section 24 does not apply — companies can still deduct mortgage interest fully. If you are considering incorporation, our Virtual CFO service can model the tax position before you act.
What an Indian CA firm handles for UK landlords
The split between what an Indian CA firm handles and what stays UK-side is straightforward. The Indian team does the monthly and quarterly groundwork; your UK tax agent does the final HMRC submission.
| Task | Indian CA firm | UK tax agent |
|---|---|---|
| Monthly bank reconciliation | Yes | No |
| Rental income recording per property | Yes | No |
| Expense coding and categorisation | Yes | No |
| Mortgage interest tracking (Section 24) | Yes | No |
| MTD quarterly income/expense summaries | Yes (prep) | Submission |
| Year-end SA105 data preparation | Yes | No |
| Self Assessment submission to HMRC | No | Yes |
| Capital gains on property sales | Supporting data | CGT calc + filing |
In practice, most landlords find that an Indian CA firm handling the monthly bookkeeping reduces their UK accountant's bill significantly — because the accountant receives clean, reconciled data rather than a shoebox of bank statements.
Cost comparison: UK accountant vs Indian CA firm
The savings for landlords are substantial, particularly for those managing multiple properties. The table below uses typical market rates as of 2026.
| Portfolio size | Indian CA firm / month | UK accountant / month | Annual saving |
|---|---|---|---|
| 1 buy-to-let property | £60–£100 | £150–£250 | £1,080–£1,800 |
| 2–5 properties | £100–£200 | £250–£450 | £1,800–£3,000 |
| HMO (6–10 rooms) | £150–£300 | £400–£700 | £3,000–£4,800 |
| 10+ properties / portfolio | £300–£500 | £700–£1,200 | £4,800–£8,400 |
These figures cover monthly bookkeeping and year-end accounts preparation. HMRC Self Assessment submission is typically charged separately by UK tax agents at £150–£300 per return, regardless of who prepared the underlying data.
MTD for Income Tax — what changes for landlords from April 2026
Making Tax Digital for Income Tax Self Assessment (MTD ITSA) replaces the annual SA100 with quarterly digital submissions for landlords and sole traders earning over £50,000 from April 2026, and over £30,000 from April 2027.
For landlords, this means four quarterly updates to HMRC each year — a summary of rental income and expenses for each quarter — plus a final declaration at year end replacing the SA100. This is exactly the kind of structured monthly data preparation that suits an outsourced Indian bookkeeper well.
Your Indian CA firm prepares the quarterly income and expense summaries throughout the year. Your UK tax agent or you submit those summaries through MTD-compatible software (Xero, QuickBooks, FreeAgent) directly to HMRC. The workload shifts from one annual rush to four smaller quarterly updates — a more manageable rhythm when you have a bookkeeper doing the ongoing data entry.
If you are not yet on cloud accounting software, now is the time to move. Our bookkeeping team can set up Xero or QuickBooks for your property portfolio and migrate historical transactions before your MTD ITSA start date.
How to get started: setting up access for your Indian bookkeeper
The setup process takes under 30 minutes for most landlords:
- Choose your software: Xero, QuickBooks Online, or FreeAgent. If you are not on cloud software yet, we can set this up for you.
- Invite the Indian CA firm as an adviser: In Xero, go to Settings > Users > Invite an Adviser. In QuickBooks, go to My Accountant > Invite Accountant. This gives accountant-level access without sharing your own login.
- Connect your bank feeds: Most UK banks connect directly via Open Banking. This pulls transactions automatically each day — no manual uploads.
- Share a property schedule: A simple spreadsheet listing each property address, the tenant name, monthly rent, and mortgage lender. This lets the Indian team set up the chart of accounts correctly from day one.
- Set a monthly review date: We send a reconciliation report and expense summary on the 5th of each month covering the prior month. You review and approve, then we prepare the quarterly MTD summary.
Written by Sharma Jyoti, CA (ICAI) — Founder, Sharma Jyoti and Co. We are an ICAI-registered Chartered Accountant firm providing outsourced bookkeeping and accounting services to Australian, US, UK and Canadian businesses. Our team includes Xero Advisor Certified professionals (Certificate #17207818). Learn more about our firm →
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