Instant Tax Answers: How AI Assistants Handle This Year and Last Year's Rules

Tax questions rarely arrive on schedule. You might need to know whether a November pension payment counts for 2025 relief while filing Form 11 in October 2026, or how MTD ITSA thresholds apply to your 2024–25 return when planning April 2027 registration.

Generic search results mix years, jurisdictions, and outdated rates. FinnAccountings AI assistant answers from two sources: your live books and rule sets pinned to the tax year you specify — current or previous fiscal periods for Ireland and the UK.

Irish income tax runs on a calendar year — 2025 income files in 2026. UK Self Assessment uses 6 April to 5 April. VAT periods may be bi-monthly, monthly, or quarterly depending on registration. A correct answer to "can I claim this?" depends on which year and which return you mean.

PRSI blended rates, USC bands, dividend allowances, and MTD thresholds shift with each Budget. An assistant that defaults to "today's rules" for a 2024 liability will mislead you. FinnAccountings tags questions to the relevant year and jurisdiction before responding.

"How much preliminary tax do I owe for 2026?" — the assistant reads your year-to-date profit, applies Revenue safe harbour options (90% of estimated 2026 liability versus 100% of 2025), and shows the payment due with Form 11 in October or November.

"Was this expense allowable in my 2024 UK return?" — it checks the transaction date, category, and HMRC rules for that year, including capital allowance treatment versus revenue deduction.

"Do I need to register for VAT based on last year's turnover?" — it totals taxable supplies for the relevant rolling twelve months against Irish €42,500 services / €85,000 goods thresholds or UK £90,000 registration rules.

"What's my MTD status for 2026–27?" — it calculates qualifying income from your stored Self Assessment figures and explains whether salary and dividends are excluded from the threshold.

Chatbots without ledger access hallucinate figures. FinnAccountings ties answers to categorised transactions, filed drafts, and agent calculations — so when you ask about medical expenses or R&D spend, the response references amounts already in your account.

When data is incomplete, the assistant says so. Missing receipts, uncategorised transfers, and unreconciled payslips trigger follow-up prompts instead of confident wrong numbers. That honesty is what makes answers filing-grade rather than conversational fluff.

During the active year, questions focus on forecasting: estimated tax set-aside, VAT liability accruing this period, payroll employer PRSI after rate changes, and whether you are on track for preliminary tax.

During filing season, questions shift to reconciliation: comparing draft Form 11 or SA100 to last year's return, identifying new income streams, and confirming credits for tax paid at source.

For prior years already filed, the assistant references archived snapshots — useful when Revenue or HMRC opens an enquiry and you need to explain how a figure was built.

The same engine powering Tax Agent drafts and VAT Agent returns backs the Q&A layer. Ask a question in plain English; get an answer consistent with the draft return sitting in your review queue — no contradictions between chat and compliance.

Start a free trial, connect your accounts, and try asking about both the year you are filing and the year you are trading in now. The difference between generic advice and data-backed answers becomes obvious within the first conversation.