Why UK Practices Outsource SA Return Preparation to India
Self Assessment season is the most concentrated workload event in the UK accounting calendar. For a practice with 50 SA clients, the November-to-January window requires roughly 150–250 hours of preparation work — on top of the regular monthly bookkeeping and VAT workload. Without additional capacity, something slips: turnaround times extend, clients miss deadlines, or permanent staff work excessive hours.
Indian CA firms provide a direct solution. ICAI-qualified accountants understand the UK tax system — Income Tax, Class 4 NIC, rental income schedules, capital gains, pension contributions — to the level required for SA preparation. They work from the records you share, prepare a complete draft return, and return it to your UK reviewer within the agreed turnaround time.
The cost is compelling: £30–£80 per standard SA return versus the equivalent of £150–£250 in UK staff time (3–5 hours at £40–£60/hour). For a practice handling 50 returns, that is a saving of £6,000–£8,500 in one season, with no recruitment cost and no permanent headcount added to your payroll.
What the Indian Team Can and Cannot Do
Understanding the boundary of the Indian team's role protects your practice and sets the right expectations. The Indian team prepares; the UK practice reviews, decides, and submits.
| Task | Indian Team Role | UK Practice Role |
|---|---|---|
| Collect client documents | None — you collect these | Chase client for P60, bank statements, receipts |
| Prepare draft SA return | Prepares from records provided | Reviews and signs off |
| Flag queries on missing data | Flags to UK reviewer | Resolves with client and updates Indian team |
| Tax computation | Calculates income tax, NIC, and any reliefs | Checks figures and verifies reliefs claimed |
| HMRC submission | None — no HMRC access | Submits via HMRC online agent account |
| Client communication | None — all client contact stays with UK practice | Manages client queries, delivers tax return |
| HMRC enquiry response | Can prepare supporting data | Manages all HMRC correspondence |
This split works because the Indian team's role is preparation — a technical task that transfers cleanly offshore — while the UK practice retains all client-facing and regulatory responsibilities. Your professional indemnity insurance, your HMRC agent number, and your engagement letter cover the work throughout.
The Complete Workflow — Step by Step
A well-run SA outsourcing workflow operates on a clear cycle. Practices that document this process before SA season begins see significantly fewer bottlenecks during January.
- Client document collection (October–December): Your practice chases each client for the documents needed. A checklist sent in October gets better response rates than one sent in December. Upload completed client packs to your shared folder (OneDrive, Dropbox, or SharePoint) as they arrive.
- File handoff to Indian team (as documents arrive complete): Do not batch all files for January. Send each complete client pack to the Indian team as soon as it is ready. This distributes the work and avoids a December crunch.
- Indian team preparation (3–5 business days per standard return): The Indian team works through the records, prepares the SA return in the format your practice uses, and produces a query list of any items that need clarification or missing documents.
- Query resolution (1–2 business days): Your UK reviewer receives the draft return and query list. Queries are resolved either from existing records or by contacting the client. Resolved queries are returned to the Indian team for updating, or the reviewer updates the draft directly.
- Final review (1 hour per return): Reviewer runs the standard checks — income reconciliation, tax computation, NIC, any unusual items — and either approves or sends back for revision.
- HMRC submission: Practice submits via HMRC online agent. Confirmation sent to client.
Total elapsed time from complete client pack to submission: 5–10 business days. For a standard January submission target, files received by mid-December can comfortably be submitted by mid-January.
What Records to Send — and How to Send Them Securely
The most common cause of delay in offshore SA preparation is incomplete records. A rigorous document checklist per client type removes this bottleneck.
Standard documents for each client type:
- Employed clients: P60 from all employers, P11D if applicable, bank statements for any business income
- Self-employed / sole traders: Bank statements (business and personal mixed accounts), sales invoices or turnover figure, expense receipts or categorised expense list, mileage records
- Landlords: Rental income statements or letting agent statements, mortgage interest statements, maintenance and repair receipts, insurance and management fee invoices
- Investment income: Dividend statements, savings interest certificates (R40/R85), any bond or trust income statements
- Capital gains: Completion statements for property disposals, broker statements for share sales, original purchase documents and costs
- Pension: Contribution statements from pension provider (for additional rate tax relief claims)
Send records via a secure file-sharing platform — not email attachments. Most UK practices outsourcing to India use OneDrive shared folders (one folder per client), with access restricted to the Indian team lead only. This satisfies UK GDPR requirements for data transfer and provides an audit trail of what was shared and when.
Cost and Margin Analysis for UK Practices
The economics of outsourced SA preparation depend on your client billing rate and how much UK review time each return requires.
| Client Type | Indian Team Cost | UK Billing Rate | UK Review Time | UK Review Cost | Net Margin |
|---|---|---|---|---|---|
| Employed (simple) | £30–£50 | £150–£250 | 45 min | £30–£45 | 55–65% |
| Sole trader | £50–£80 | £250–£400 | 1–1.5 hrs | £40–£70 | 55–65% |
| Landlord (1–3 properties) | £60–£100 | £300–£500 | 1.5–2 hrs | £60–£90 | 55–62% |
| Complex (CGT + rental + employment) | £100–£150 | £450–£700 | 2–3 hrs | £80–£120 | 50–58% |
For a practice with 50 SA clients averaging £350 billing rate and £70 Indian team cost per return, the total revenue is £17,500. Without offshore: 50 returns at 4 hours each = 200 hours at £50/hour = £10,000 in UK staff cost. With offshore: £3,500 Indian cost + 50 hours UK review at £50/hour = £6,000 total cost. Net saving: £4,000 per SA season — and your UK staff have 150 hours freed up for advisory and new client work.
Common Mistakes to Avoid
Most problems in offshore SA arrangements come from the same few sources. Avoid these and the workflow runs smoothly:
- Sending incomplete files: An Indian team working with missing records produces a return full of queries, which defeats the efficiency purpose. Chase documents before handoff — not after.
- Leaving query resolution to the last minute: A query that sits unresolved for 5 days in January can push a return past the 31 January deadline. Build a 48-hour query resolution SLA into your process.
- No client brief for complex returns: A one-page brief summarising the client's situation — number of rental properties, stock portfolio, any disposals during the year — cuts query volume by 50–60% for complex returns.
- Skipping the test run: Always run 2–3 returns with a new Indian CA firm before SA season. A firm that produces clean work in October will handle January volume. A firm with process gaps revealed in October can be replaced before the crunch.
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. Learn more about our firm →