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.

TaskIndian CA firmUK tax agent
Monthly bank reconciliationYesNo
Rental income recording per propertyYesNo
Expense coding and categorisationYesNo
Mortgage interest tracking (Section 24)YesNo
MTD quarterly income/expense summariesYes (prep)Submission
Year-end SA105 data preparationYesNo
Self Assessment submission to HMRCNoYes
Capital gains on property salesSupporting dataCGT 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 sizeIndian CA firm / monthUK accountant / monthAnnual 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:

  1. Choose your software: Xero, QuickBooks Online, or FreeAgent. If you are not on cloud software yet, we can set this up for you.
  2. 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.
  3. Connect your bank feeds: Most UK banks connect directly via Open Banking. This pulls transactions automatically each day — no manual uploads.
  4. 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.
  5. 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.
About This Article
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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Frequently asked questions

An Indian CA firm prepares all the data for your Self Assessment — rental income summaries, mortgage interest schedules, allowable expenses, and replacement relief calculations. The HMRC submission must be made through an authorised UK tax agent or by you directly through your HMRC Government Gateway account. If your Indian firm holds UK agent authorisation, they can submit directly on your behalf.
Yes. There is no legal restriction on UK landlords using an overseas bookkeeping firm for record-keeping and accounts preparation. HMRC requires accurate records and timely submission — it does not specify where your bookkeeper is based. You remain responsible for the accuracy of your tax return, which is why most landlords retain a UK tax agent for the final Self Assessment submission.
Indian CA firms typically charge £60–£120 per month for a single buy-to-let, or £100–£200 per month for a portfolio of 2–5 properties. UK accountants charge £150–£350 per property annually for the same scope. For HMO landlords with higher transaction volumes, expect £150–£300 per month from an Indian firm versus £400–£700 from a UK accountant.
Xero and QuickBooks Online are the most common choices because they allow accountant-level access without sharing your login. FreeAgent works well for smaller portfolios. Sage Accounting (cloud) suits landlords already on Sage. Cloud software with shared access reduces errors and is better suited to MTD for Income Tax requirements from April 2026 than spreadsheet-based workflows.
Most landlords use both. The Indian CA firm handles monthly bookkeeping — transaction coding, bank reconciliation, rental income and expense tracking — at a fraction of UK rates. A UK tax agent reviews the year-end figures and submits your Self Assessment. This split keeps costs down while keeping a qualified UK professional responsible for the final tax filing.