How to prepare your first set of company accounts

Preparing your first set of company accounts can feel daunting as a new UK limited company director, but it follows a clear process once you understand the requirements. For most early-stage founders and e-commerce sellers, this usually means filing micro-entity accounts with Companies House and submitting a Corporation Tax return to HMRC.

Start by keeping accurate records from day one, decide which filing option suits your business size, and meet the deadlines to avoid penalties. This guide walks through practical steps to get it right without unnecessary complexity.

Understand the different types of accounts for new limited companies

New limited companies in the UK must prepare and file annual accounts with Companies House. The simplest route for most startups is micro-entity accounts. These require minimal disclosures and are suitable when your business meets the qualifying criteria, which change periodically so always check the latest rules on GOV.UK.

Abridged accounts sit between full and micro-entity filings. They provide a balance sheet with some additional notes but less detail than full accounts. Many new e-commerce businesses begin with micro-entity filing and only move to abridged or full accounts if they grow beyond the thresholds. The choice affects both the work involved and the information made public.

Regardless of type, accounts must show a true and fair view of the company's financial position. This means recording all income, expenses, assets and liabilities accurately from the date of incorporation.

Set up your bookkeeping system from day one

Good records make preparing accounts straightforward. Open a dedicated business bank account immediately after incorporation and route all company transactions through it. Keep digital copies of every invoice, receipt and bank statement.

Use simple spreadsheet templates or free accounting software to record:

Sales invoices issued to customers
Purchase invoices and receipts for expenses
Bank transactions including transfers, card payments and fees
VAT records if you are registered
Director's loans or personal expenses paid by the company

Review transactions monthly. Categorise costs clearly (for example, stock, marketing, software subscriptions, postage). This habit prevents a large pile of paperwork when accounts are due and helps you understand cash flow and margins in real time.

Prepare a basic profit and loss account and balance sheet

The core of your first accounts is a profit and loss statement and a balance sheet. The profit and loss shows income minus expenses over your accounting period, resulting in profit or loss. The balance sheet lists what the company owns (assets) and owes (liabilities) at the end of that period.

Practical steps:

Choose your accounting reference date – usually the end of the month one year after incorporation, but you can choose a different date.
List all income from e-commerce sales, including platforms fees deducted at source.
Subtract allowable business expenses such as stock purchases, marketing, website costs and accountancy fees.
Calculate the net profit or loss.
On the balance sheet show remaining cash, stock value, debtors, creditors and any director's loan account balance.

Keep explanations simple. For example, if you bought £2,000 of inventory that remains unsold, it appears as stock on the balance sheet rather than an expense. This reasoning helps you see the true financial picture rather than just bank balance movements.

Micro-entity accounts: what must be filed

Micro-entity accounts are the least detailed option and are designed for small businesses. When filing, you normally submit an abbreviated balance sheet and very limited notes. No detailed profit and loss account needs to be sent to Companies House for micro-entities.

Key elements to include:

Company name, number and accounting period
Balance sheet with fixed assets, current assets, creditors and capital
Director's signature confirming approval
Any required notes on accounting policies or related party transactions

These accounts are placed on the public register, so avoid including information you prefer to keep private. Many new founders choose this route because it reduces preparation time and limits public disclosure. Confirm current qualifying conditions on GOV.UK before preparing your filing.

Abridged accounts and when to use them

If your company is slightly larger or you want to show a bit more information, abridged accounts allow a simplified profit and loss alongside an abridged balance sheet. They still reduce the amount of detail compared with full accounts.

Prepare them by starting with your full internal records then removing certain breakdowns that are not required. For instance, you can combine some expense categories. Always ensure the figures balance correctly and that the director is comfortable that they give a true and fair view.

New e-commerce sellers often begin with micro-entity accounts and switch to abridged only if they exceed micro-entity limits or need to present slightly fuller information to a bank or investor. Check Companies House guidance each year because the exact format and allowable simplifications can change.

Deadlines and filing process for first accounts

Your first accounts must usually be filed within nine months of your accounting reference date for Companies House, although the very first filing has special rules. Corporation Tax returns to HMRC are due twelve months after the end of the accounting period, with payment due nine months and one day after the period end. Deadlines vary and are calculated from your incorporation date, so log your exact dates in a calendar.

Practical checklist before filing:

Reconcile all bank accounts to the penny
Confirm stocktake or inventory valuation if you hold physical goods
Get director approval and signature
File online via Companies House WebFiling or software that connects directly
Submit CT600 Corporation Tax return to HMRC, even if no tax is due

Keep copies of everything submitted. Late filing attracts automatic penalties that increase over time, so set reminders several weeks in advance.

Common pitfalls and how to avoid them

New founders often mix personal and business spending, making it hard to separate transactions later. Avoid this by using only the company bank card or account for business purchases and transferring any personal reimbursements properly through the director's loan account.

Another frequent issue is forgetting to record small cash expenses or platform fees. Keep a simple log and enter them weekly. E-commerce sellers should also track VAT correctly if registered, noting that input VAT on purchases can usually be reclaimed but rules change so confirm current requirements with HMRC.

Do not leave preparation until the deadline. Block out two or three days in your diary well before the due date to review records calmly. If numbers look unexpected, trace them back to source documents rather than guessing.

Frequently asked questions

Do I need an accountant for my first company accounts?

Many new limited companies prepare and file micro-entity accounts themselves using free or low-cost software and guidance from GOV.UK. If your transactions are straightforward and you keep good records, this is realistic. Consider professional help only if you have complex stock, international sales or are unsure about director's loan accounts.

What is the difference between micro-entity and abridged accounts?

Micro-entity accounts show the least information publicly and require only a simplified balance sheet. Abridged accounts include some profit and loss information and slightly more notes. Most new UK startups start with micro-entity filing unless they have already grown beyond the qualifying limits.

When are my first company accounts due?

Companies House usually requires your first accounts within nine months of your accounting reference date. HMRC Corporation Tax returns are due twelve months after the accounting period ends. Exact deadlines depend on your incorporation date so check your Companies House account for the precise filing date.

Can I file my accounts myself online?

Yes. Most new directors file micro-entity or abridged accounts directly through the Companies House WebFiling service or compatible accounting software. You will need a Companies House account and authentication code. HMRC Corporation Tax returns are submitted through their online portal.

What records should I keep for e-commerce sales?

Keep platform statements, sales invoices, PayPal or bank payment confirmations, purchase invoices for stock and receipts for all expenses. Record VAT where applicable. Reconcile these against your bank account each month so your profit and loss and balance sheet match reality.