Pre-Trading Expenses for an Irish Limited Company: What Can You Claim?

What is a pre-trading expense, rather than a pre-incorporation cost?

Pre-trading describes when an expense arises relative to the start of a trade. Pre-incorporation describes a period before the company exists. Section 25 of the Companies Act places the company's corporate existence at the incorporation date in its certificate. The two timelines should not be collapsed into one start-up folder with no dates.

Build a simple chronology: incorporation, premises access, supplier commitments, operational readiness, customer work and invoices. Give the accountant the events and documents rather than choosing the date that produces the preferred deduction. Do not assume the incorporation date or the first customer payment must be the commencement date for every business.

An early discussion is particularly useful when a planned launch is delayed. Keep the original launch plan and explain what changed. A dated account of actual activity helps an adviser review the position; replacing earlier records with a tidier retrospective story does not.

• Companies Act 2014: Section 25, effect of registration

The Section 82 conditions and the three-year window

Revenue's manual applies a three-year look-back from commencement and asks whether the expenditure would have been deductible had it arisen after commencement. The normal wholly-and-exclusively business-purpose test still applies. Qualifying amounts are treated as incurred when the trade starts, with no duplicate relief under another provision.

Ask your accountant to prepare an itemised review rather than applying one percentage to the entire launch budget. Put uncertain items in a separate column, with a question and the missing document. A supplier description such as business setup is often too broad to explain the individual services, assets or rights purchased.

Keep the date the obligation arose as well as the payment date. If a supplier invoice spans several months, retain its service period and agreement. Do not change dates, split an invoice artificially or reissue old paperwork simply to place it within a preferred window. Let the adviser identify which date and treatment are relevant.

• Revenue: relief for pre-trading expenses, Section 82

Which preparation costs should you ask the accountant to review?

Revenue gives examples including accountancy fees, advertising, feasibility studies, business-plan preparation and rent for the operating premises. These examples are not blanket approval of every invoice with one of those labels. Explain the work delivered, who commissioned it and how it relates to the intended trade.

For a marketing invoice, attach the campaign brief and distinguish launch work from a founder's unrelated personal project. For professional fees, ask for an adequate breakdown of the assignment. For rented space, provide the lease, the period covered and the intended use rather than just the bank transfer description.

Start with the evidence you actually have. A short note recording the commercial purpose at the time is useful; inventing a purpose after the event is not. Where a supplier bundled several deliverables, request an accurate explanation instead of assuming the complete bundle has one tax classification.

• Revenue: relief for pre-trading expenses, Section 82

Separate running costs, equipment, deposits and stock

Revenue distinguishes ordinary company deductions from capital expenditure and business entertainment. Qualifying assets may fall within capital-allowance rules instead of an immediate running-cost deduction. Buying an item before opening does not by itself decide its treatment.

Prepare a classification list before sending the accounts file. The table is a handover aid, not a tax ruling. In particular, identify deposits, goods bought for resale and equipment separately so the accountant can consider their terms and accounting treatment. Avoid a single launch expenses entry containing everything paid during the fitting-out period.

• Equipment: retain the supplier invoice, description, ownership details and when it becomes available for use.
• Deposits: retain the agreement showing what the payment secures and whether it is refundable.
• Stock: keep purchase records and an opening inventory rather than treating every delivery as a consumed overhead.
• Mixed-use items: describe the actual private and business use for review; do not label the full amount business-only without support.

• Revenue: company deductions, pre-trading expenditure and capital allowances

What if the founder paid personally before the company existed?

Start with the original contracting party. Section 45 permits an incorporated company to ratify qualifying pre-incorporation transactions, but incorporation alone does not perform that step. Legal adoption, reimbursement and tax deductibility need separate review.

Repaying the founder does not establish the company's entitlement to Section 82 relief. Give the accountant the original invoice, agreement, payment evidence and any subsequent transfer or company approval. Ask a solicitor where contractual rights, personal exposure or ownership need resolving. Do not simply replace a personal invoice name in an editing app.

Prepare two linked schedules if necessary: what the company may owe the founder, and how each underlying item should be assessed. Recording a repayment is not the same as entering a second supplier expense. This separation also helps co-founders see which costs have been approved, which remain disputed and which were personal purchases.

• Companies Act 2014: Section 45, pre-incorporation contracts

Costs incurred by another company need a different review

Revenue describes a limited company-to-company treatment where the conditions associated with Section 400 would be satisfied had the transfer occurred after commencement. It is not a general permission to move any founder's historic expenditure into a newly formed LTD.

Tell the adviser if an existing business, group company or proposed predecessor incurred costs. Supply its identity, relationship to the new company, relevant agreements and information about any relief already used. Keep this distinct from a director using a personal card to pay an invoice for the existing company.

Do not rely on the businesses having similar names or the same owner. Ask for the proposed treatment and supporting analysis in writing. If the adviser needs an additional tax or legal review, resolve that before filing instead of treating an informal intercompany payment as the answer.

• Revenue: Sections 81 and 82, Finance Act 2025 notes (pages 70-71 and 85-86)

A deduction is not a refund of the launch budget

A tax deduction reduces the relevant taxable profit; it is not reimbursement of the supplier's bill. Revenue's Section 82 guidance restricts the resulting loss element to future income of the same trade or profession rather than general offset against other income.

Keep the cash forecast separate from the tax working paper. Suppliers still need paying even where an adviser expects future relief. Ask when a supported deduction could affect the company's computation and what happens if there are no relevant profits. Do not budget as though submitting receipts automatically generates money from Revenue.

Where the company has other income or more than one activity, show the accountant how the costs relate to the particular venture. Do not mix all losses together in a spreadsheet and assume identical use. Request a record of any amount carried forward so it is not forgotten or duplicated when the company changes accountant.

• Revenue: Sections 81 and 82, Finance Act 2025 notes (pages 70-71 and 85-86)

A fictional bicycle-shop example: one budget, different questions

Imagine a newly incorporated company preparing to open a bicycle repair shop. It commissions a local launch campaign, rents a unit, buys a repair stand, pays a refundable premises deposit and orders spare parts. The director also adds a personally owned bicycle to the expense list. These are fictional review items, not approved claims.

The accountant asks for the campaign brief, lease, equipment invoice, deposit terms and parts inventory. The repair stand goes into the asset-review list rather than being assumed to be an ordinary advertising-style cost. The personal bicycle is flagged for ownership, purpose and any transfer advice; the director does not simply assign it a convenient value.

The founder also supplies the actual opening timeline and explains any customer work performed earlier. After review, the company retains the classifications and unresolved questions alongside the original evidence. The useful result is a defensible file for each transaction, not a promise that all spending before the shop opens receives the same relief.

Create a start-up cost schedule your accountant can actually use

Use one line per item and a stable reference connecting it to the original document. Avoid emailing a collection of screenshots without any explanation. An organised handover reduces the time spent identifying transactions and leaves more time for the accounting questions that genuinely require judgement.

• Record supplier, invoice reference, purchase description and service period.
• Show who entered the contract, who paid and the actual dates, amount and currency.
• Describe the intended trade and specific business purpose.
• Link the original invoice, contract, payment record and any credit or refund.
• Flag private use, equipment, deposits, inventory and founder-paid purchases.
• Note company approval, ownership or transfer questions without assuming the answer.
• Record whether another person or company has already claimed or received relief.
• Keep the accountant's classification and any follow-up question beside the item.

Keep the evidence beyond the first tax return

Revenue's general business guidance requires original tax documents to be retained for six years and makes clear that using an accountant does not transfer the business's record-keeping responsibility. Preserve the links between receipts, ledgers and the tax calculation.

Discuss the retention starting point and any longer period needed for unresolved matters, assets or continuing claims with the adviser. A three-year pre-trading window is not a document-deletion timetable. Keep the company's complete records readable, backed up and accessible if the founder loses access to an old email account.

Before changing software or accountants, export the relevant attachments and working papers as well as the balances. Test a few files. A number in a ledger is much less useful when the contract explaining it has vanished from an expired supplier portal.

• Revenue: keeping business records

If the launch is abandoned or the founder lives abroad

The relief described here depends on a trade commencing. If the project never starts, do not assume the same Section 82 deduction becomes available anyway. Ask for advice on the actual circumstances, any different provisions and the company's remaining filing and closure obligations.

For an overseas founder, give the adviser the countries involved, working locations, supplier details and any earlier claims. Irish incorporation does not establish that every cost belongs exclusively in an Irish computation. Do not claim the same expenditure twice or assume that a home-country deduction automatically transfers into the Irish company.

Keep commercial decisions separate from tax expectations. Spending more to obtain a possible deduction still consumes cash. A useful launch budget prioritises what the business genuinely needs and leaves room for banking, records, filings and professional advice.

Arrange first-year accounting support before the filing deadline

StartCompany.ie connects businesses with accounting support. Bring the start-up cost schedule, incorporation details, activity timeline and examples of uncertain invoices when requesting a quote. Explain whether you need a one-off pre-trading review, bookkeeping setup, first accounts, tax-computation work or continuing support.

Agree the deliverables, information required, review deadlines and total payable before instructing the work. Do not assume a formation package or bookkeeping quote includes specialist review of every historic founder cost. An early, focused discussion helps identify the missing documents while suppliers and founders can still retrieve them.