Business Guide

What Does a Startup Accountant Actually Do?

A startup accountant’s job changes with the company. Before launch it is structure and systems. In early trading it is bookkeeping, payroll, VAT and cash. In growth it is management information and controls. Around a raise it is packs that an outsider can trust.

Updated 6 September 20267 min read

Introduction

This article explains that lifecycle. It is not a comparison shopping list; if you are choosing a firm, use the separate buyer’s guide. Here the question is simpler: what should the accountant actually be doing at each stage?

The same person may not do every task. Bookkeeping, payroll and tax often sit in one practice, with extra help brought in for a due diligence pack. What matters is that someone owns the close.

Accountant vs bookkeeper

A bookkeeper records transactions, reconciles the bank, and keeps sales and purchase ledgers in order. An accountant uses those records to prepare accounts, tax returns and advice, and to judge whether the picture is complete.

In a startup, one firm often does both. That is fine if the monthly close is real. It is not fine if “the accountant” only appears in month thirteen.

Startup accountant vs traditional year-end accountant

A traditional year-end accountant collects a folder after the period has finished, produces statutory accounts, and files tax. That still has to happen. It is not enough if you are hiring, burning cash, or talking to investors during the year.

A startup accountant works on a monthly rhythm: records current, tax diary visible, and a short explanation of what the numbers mean. Year-end then becomes a continuation of that work, not a forensic project.

Stage 1 — Before launch

Before trading, the accountant should help you choose a structure that matches liability and how you will take money out, then set up the financial skeleton: business bank account, accounting software, a simple chart of accounts, and a calendar of likely filings.

Forecasting at this stage is a cash plan, not a pitch deck. What are the contracted costs, when will first invoices go out, and how will the founders live? If the plan only works on unpaid founder time, write that down so it does not surprise you later.

Company formation, if you need a limited company, should include the practical follow-through: who is on payroll, who can authorise spending, and where documents live. Incorporation without a bank account and bookkeeping is only a certificate.

Stage 2 — Early trading

Once invoices start, bookkeeping should be monthly at least. Sales, costs, bank, and any contractor bills need to be complete enough that you can answer “did we make money last month?” without opening six apps.

Payroll begins when you pay people through the company, including founders on salary. VAT may apply depending on supplies and turnover; the accountant should monitor the position against current HMRC rules rather than a remembered threshold.

Tax compliance in this stage is mostly staying on the diary: PAYE, VAT if registered, Companies House confirmations, and knowing that Corporation Tax will follow the first accounts. Cash-flow monitoring is watching debtors, subscriptions, tax set-asides and the runway in weeks, not only the current balance.

Stage 3 — Growth

Growth is when headcount, marketing spend and overheads can rise faster than cash collections. Management accounts become the monthly control: profit, cash, budget versus actual, and a few KPIs that match the model.

Budgeting does not need to be elaborate. It needs to be updated. Hiring plans should be tested against cash and against the time it takes customers to pay. Financial controls at this stage are practical: who can spend, who approves, and a close date that the team respects.

Tax planning belongs here, before the year end, using actual management figures. Options depend on the company’s circumstances and current rules. The accountant’s job is to surface what is still open, not to promise an outcome.

Stage 4 — Investment and scaling

A raise, grant or serious lending process tests whether the books can be explained to a stranger. That means reliable financial information, forecasts that reconcile to recent actuals, and a file of filings that are up to date.

Investor reporting is often a short pack plus a call. Due diligence will go deeper: contracts, payroll, VAT, share issues, related-party balances. An accountant who has closed the books monthly can support that. An accountant who has never seen the software will spend your money catching up.

As the company scales, the finance function may move from an outsourced practice to an internal hire, with the accountant remaining for tax and review. The transition is easier if the chart of accounts and close process were designed for growth rather than for a single year-end.

Signs a startup has outgrown basic accounting

  • The founders cannot explain last month’s profit or cash movement
  • Payroll, VAT or contractor bills are regularly late or reconstructed
  • Investors or lenders have asked for packs you cannot produce in a week
  • You have more than one entity, or overseas customers, with no reporting split
  • Spending happens in tools the books never see
  • The year-end invoice is always a surprise because nothing was closed monthly

Common founder finance mistakes

  • Using a personal account “until we are bigger”
  • Paying people without payroll because it felt temporary
  • Treating the bank feed as the management report
  • Raising on a forecast that has never been compared with actuals
  • Leaving VAT, PAYE and Companies House to the week of the deadline
  • Hiring a bookkeeper and an accountant who never share a close timetable

When additional accounting support becomes worthwhile

Add support when the cost of founder time, or the risk of a wrong VAT or payroll position, exceeds the fee. That is often around the first hires, the first VAT period, or the first serious conversation with an investor.

Project work, such as a cleanup or a due diligence folder, can be scoped separately from the monthly fee so you are not paying a panic rate for ordinary bookkeeping afterwards.

How DepoTax works with growing businesses

DepoTax works with startups from setup through early trading and into regular reporting. The startup service page explains the offer; this article is the sequence of work you should expect from any accountant who claims to support a growing company.

If you already have software and a bookkeeper, the next step is usually a proper monthly close and a short pack. If you do not, start with structure, the bank, and bookkeeping that someone actually reconciles.

Frequently asked questionsFAQ

What does a startup accountant do in the first year?

They help with structure and systems, keep bookkeeping current, handle payroll and VAT where they apply, and make sure the first accounts and Corporation Tax timetable are visible. They should also watch cash, not only profit.

Is a bookkeeper enough for a startup?

A bookkeeper can keep transactions in order. An accountant uses those records for tax, accounts and judgement about whether the picture is complete. Early-stage companies often need both, sometimes from one firm.

When do startups need management accounts?

When hiring, cash or outside money makes last year’s accounts too slow. A short monthly pack is enough at first: profit, cash, and a few measures that match the model.

What is the difference between a startup accountant and a year-end accountant?

A year-end accountant files after the period closes. A startup accountant works monthly so that filing is a continuation of the close, and founders have numbers during the year.

How does an accountant help with a funding round?

They produce current management information, help forecasts tie back to actuals, and support the records diligence will test: payroll, VAT, bank reconciliations and related-party balances. They cannot repair a year of missing books in a weekend.

When has a startup outgrown basic accounting?

When founders cannot explain last month’s cash, when filings are reconstructed each time, or when an investor asks for a pack you cannot produce within a week. That is the point to add a proper close and reporting.

Does DepoTax work with companies after the startup stage?

Yes. Support can continue into management accounts, payroll and advisory as the company grows, rather than stopping at the first year-end accounts.

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