The UK Accounting Calendar — Two Predictable Crunch Points Every Year
Every UK accounting practice faces the same calendar. The peaks are not surprises — they arrive on the same dates every year. What catches practices out is the volume compression: 60–70% of a year's Self Assessment work arrives between November and 31 January, and a disproportionate number of limited company year-ends cluster around March and December.
The traditional response — working evenings and weekends, taking on temporary staff, declining new clients through peak season — is expensive and demoralising. Temporary UK bookkeepers are difficult to recruit at short notice, require briefing on your clients and processes, and come with employer NI and agency fees on top of their hourly rate. For practices with 20–50 SA clients, this approach costs more than it saves.
Indian CA firms offer an alternative: trained accounting staff, available at short notice, charging a fraction of UK rates, with no permanent commitment. The key is knowing what to send offshore, how to brief them, and how to maintain your review quality through the busy period.
What to Send Offshore During Peak Season
Not every task is suitable for offshore preparation during a crunch. The work that transfers best is the preparation work — the routine but time-consuming tasks that require accuracy rather than judgement. Your UK reviewer focuses on checking, adjusting, and submitting.
| Task | Send Offshore? | Notes |
|---|---|---|
| SA return preparation from complete records | Yes | Standard workflow — Indian team prepares from Xero/Sage data + client documents |
| Bank reconciliation catchup | Yes | Clients who arrive in December with a year of uncoded transactions — ideal for offshore |
| VAT return preparation | Yes | Routine MTD-ready preparation, review before submission |
| Year-end working papers | Yes | Trial balance, accruals, prepayments — prepared offshore, reviewed by UK |
| Client query resolution | No | Client-facing communication stays with your practice |
| HMRC correspondence | No | Stays with your UK agent account and UK reviewer |
| Complex CGT calculations | Partial | Data gathering and initial calc offshore; final review by UK accountant |
| Rental income schedules (SA105) | Yes | Standard SA105 preparation handles well offshore |
The January Self Assessment Overflow — How It Works in Practice
The most effective January overflow arrangement runs like a production line. Your practice manages the client relationship, document chase, and HMRC submission. The Indian team handles the volume preparation.
A typical workflow for SA overflow:
- Client document collection (November–December): Your practice chases clients for P60s, bank statements, rental income figures, and any other source documents. These are uploaded to a shared folder or cloud system.
- Record handoff to Indian team (December onwards): Client files with complete records are handed to the Indian team with a brief — SA categories, known income sources, any prior-year carryforwards. Indian team begins preparation immediately.
- Indian team preparation (3–5 business days per return): Return prepared from available data. Queries flagged to your UK reviewer — not to the client. Query list returned with the draft.
- UK review and query resolution (1–2 days): Reviewer checks figures, resolves queries with client or from records, finalises the return.
- Submission: Reviewer submits via your HMRC online agent account. Indian team never has direct HMRC access.
At this pace, a single Indian CA can prepare 4–6 SA returns per week at standard complexity. For a practice with 40 SA clients, that is 7–10 weeks of capacity — more than enough to absorb the November-to-January window without your UK staff working weekends.
The March Year-End Crunch — Different Peak, Same Solution
March year-ends create a different pressure. Unlike SA, which is return preparation on complete data, year-end work involves working papers, accruals, prepayments, and accounts preparation that feeds into the Corporation Tax return. The volume is lower but the complexity per file is higher.
For March year-ends, the offshore overflow model works as follows:
- Trial balance preparation: Indian team reconciles the year-end trial balance from Xero or Sage, flags unreconciled items, and prepares a year-end working paper with accruals and prepayments listed for reviewer approval.
- Statutory accounts draft: For straightforward limited companies, Indian teams can prepare the draft statutory accounts format for your UK reviewer to check before filing at Companies House.
- CT600 data preparation: Adjusted profit calculation, capital allowances, R&D credits, loss carry-forward — the Indian team prepares the data schedule that your UK reviewer uses to complete the CT600 submission.
- Year-end bookkeeping catchup: Clients who maintained their own books through the year but left the year-end adjustments — Indian team completes the cleanup and produces a clean trial balance.
The accounts preparation work transfers smoothly because it follows a standard format. What your reviewer is checking is accuracy and completeness — tasks that require expertise but not local knowledge of the client.
Cost Comparison — Indian CA Overflow vs UK Temporary Staff
The economics of overflow bookkeeping strongly favour an offshore arrangement, particularly for practices that need burst capacity for 6–10 weeks per year rather than permanent headcount.
| Option | Cost Per Week | Lead Time | Briefing Time | Ongoing Commitment |
|---|---|---|---|---|
| UK temporary bookkeeper (agency) | £700–£1,200 | 1–3 weeks minimum | 1–2 days on your clients and systems | None but agency fees apply |
| UK temporary bookkeeper (freelance) | £500–£900 | 2–4 weeks minimum | 1–2 days on your clients and systems | None |
| Indian CA firm (overflow arrangement) | £200–£400 | 1 week with prior relationship | 2–3 hours once agreed upfront | None — pay per return or per month |
For a practice handling 40 SA returns over 8 weeks, the saving is approximately £4,000–£6,000 compared to a UK temporary hire — plus the Indian team is already familiar with your systems and processes if you have a year-round bookkeeping arrangement in place.
How to Set Up an Overflow Arrangement Before Peak Season
The worst time to contact an Indian CA firm for overflow capacity is December. The best time is September or October — before your own peak begins and before the Indian firm's capacity is already committed to other UK practices.
Steps to set up an overflow arrangement:
- Agree scope in October: Define which tasks you will send offshore (SA preparation, year-end working papers, VAT, etc.). Agree turnaround times and query process. Get this in writing.
- Sign a data processing agreement: Client data will be shared with the Indian firm. A DPA is required under UK GDPR. Use a standard DPA template — your Indian CA firm should have one ready.
- Run a test file in October/November: Send 2–3 non-urgent client files to the Indian team before peak season starts. This reveals any process gaps while there is still time to fix them.
- Agree a query turnaround standard: Queries from the Indian team should be resolved within 1 business day. Delays here are the most common bottleneck in overflow arrangements.
- Prepare a client brief template: A one-page brief for each client — income sources, known carryforwards, any unusual items — reduces query volumes significantly. Prepare these in October, not in January.
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 →