Source hierarchy
We prefer official scheme owners, Irish regulators, government bodies, primary technical guidance and first-party provider pricing. Secondary sources may help explain a topic, but should not silently override a primary source.
Dates and changing rules
Every tool shows a last-reviewed date and an intended review cadence. Grant amounts, eligibility criteria, tariffs and regulatory information are treated as time-sensitive. The official linked source remains authoritative if it has changed since our review.
Planning assumptions
Some questions require a representative value where no single official answer exists. These values are labelled as assumptions, kept separate from scheme rules and surfaced again with the result when they matter.
Principal sources across the collection
Individual tool pages provide the source subset relevant to that calculation. This index lists the principal references currently in use.
- 48 roaming charges
- AIB personal fees and charges
- Airalo device compatibility
- Airalo guidance on data-only calls and SMS
- An Post: Customs charges and administration fee
Current €6.95 fee and when customs charges are collected
- Automatic Enrolment Retirement Savings System Act 2024
- Automatic Enrolment Retirement Savings System Act 2024, section 61
- Bank of Ireland international transaction charges
- Bord Gáis Energy residential tariffs
- Commission for Regulation of Utilities
- Commission for Regulation of Utilities consumer guidance
- Commission for Regulation of Utilities microgeneration information
- Council Regulation (EU) 2026/382
Primary EU legislation for the transitional measure
- CRO business-name forms and fees
Electronic RBN1/RBN1A/RBN1B filing fee
- CRO company fees
Electronic A1 new-company filing fee
- CRU — review of typical consumption figures
The 4,200 kWh typical annual domestic electricity consumption the form opens on.
- CRU202358 — Incentivising the Uptake of Time of Use Tariffs
States the Standard Smart Tariff load profile of 52% day, 39% night and 9% peak, and that the Estimated Annual Bill built on it does not reflect a household changing its behaviour.
- CSO Domestic Building Energy Ratings Q2 2026 - current scale and thresholds
- CSO Domestic Building Energy Ratings Q2 2026 - heat pump and solar prevalence by construction period
- CSO Domestic Building Energy Ratings Q4 2024 - stock-average primary energy
- Department of Finance: Taxation of Retail Investment, A New Path Forward for Ireland
Sections 2.1 to 2.6 describe the regimes compared here. Section 4 sets out the Investment Account, which this tool does not model.
- Department of Social Protection: auto-enrolment questions answered
- Dublin Fire Brigade electrical fire safety
- EcoAir DD3 Classic desiccant specification
- EcoAir DD3 Simple desiccant specification
- EcoAir: desiccant versus compressor dehumidifiers
- eir mobile bill-pay roaming charges
- EPA fixing a radon problem
Prevention in new builds, remediation methods and their published costs.
- EPA health risks of radon
- EPA Ireland radon guidance
- EPA radon guidance for householders
- EPA radon map
The EPA's own address search over the same mapping.
- EPA radon results by county
The measured record behind every county figure in this tool.
- EPA Radon Risk Map of Ireland
The mapped areas this tool looks a location up in, published by the EPA under CC BY 4.0.
- EPA radon testing
Registered testing services, what a test costs, and when to retest.
- ESB Networks — smart meters and data
The standard day, night and peak time bands every smart meter records against.
- ESB Networks — view my smart meter usage
Where a household reads its own day, night and peak breakdown, using the MPRN on its bill.
- ESB Networks PowerCheck
- ESB Networks vulnerable customer information
- EU roaming and fair-use rules
- European Commission: Guidance on the temporary flat fee
DG TAXUD guidance, maintained as a living document
- Eurostat gas prices for household consumers
- FSAI competent authorities
- FSAI home business, food truck or food stall guidance
- FSAI starting a food business
- GoMo pricing and roaming costs
- Home heating oil prices in Ireland
- HSE keeping well and warm
- HSE mould and damp guidance
- Meaco DD8L desiccant dehumidifier specification
- Meaco: when to buy a desiccant and when to buy a compressor
- MeacoDry Arete One 12L specification
- MeacoDry Arete One 20L specification
- MeacoDry Arete One 25L specification
- MyFutureFund participant handbook
- MyFutureFund: managing my fund
- N26 payments and withdrawals abroad
- PRSI Contribution Rates and User Guide, SW 14, January 2026
Class S at 4.2% until 30 September 2026 and 4.35% from 1 October 2026, and the €5,000 income threshold below which it does not arise.
- PVGIS photovoltaic performance tool (European Commission JRC)
- Revenue Notes for Guidance, Taxes Consolidation Act 1997, Part 26
Chapter 6, sections 730H to 730K: what counts as an offshore state, the return due on acquiring a policy, the rate tables that reach 38% from 1 January 2026, the eight-year deemed disposal in section 730K(6), and the 60% and 80% personal portfolio rates.
- Revenue Tax and Duty Manual Part 27-01A-02: Investment Undertakings
Exit tax, the deemed disposal rule, and the worked example in Appendix I(b) showing the base cost carried forward and the credit set against a later chargeable event.
- Revenue Tax and Duty Manual Part 27-01A-03: Exchange Traded Funds
Which manual governs an ETF by domicile, and the withdrawal of the pre-2022 confirmation.
- Revenue Tax and Duty Manual Part 27-02-01: Taxation of payments from Offshore Funds
Distributor certification and the 85% test, the 40% CGT rate under section 747A, and the income tax treatment of non-distributing funds.
- Revenue Tax and Duty Manual Part 27-04-01: Offshore Funds in the EU, EEA and OECD member states
The equivalence test under section 747B(2A), the criteria for 'similar in all material respects', and the absence of loss relief under section 747E(3).
- Revenue Tax and Duty Manual Part 41-00-28: A Guide to Self Assessment
Pay and File on a single due date of 31 October, on which the return and self-assessment for the previous tax year are filed and any balance for that year paid.
- Revenue: Buying goods from outside the EU
Consumer scope, Great Britain and Northern Ireland treatment, duty collection and VAT
- Revenue: Current VAT rates
- Revenue: Dividend income
Dividends charged at marginal rate with USC and PRSI, and dividend withholding tax as a credit.
- Revenue: employer pension contributions
- Revenue: Exchange rates for customs value
Official monthly customs conversion rates
- Revenue: how Income Tax is calculated
- Revenue: How to calculate CGT
The 33% rate and the €1,270 annual personal exemption.
- Revenue: Import One Stop Shop (IOSS)
VAT collected at checkout for qualifying imports
- Revenue: Refund of Customs Duty and VAT
- Revenue: Removal of low-value consignment relief
The €150 intrinsic-value limit and temporary €3 charge
- Revenue: Standard rates and thresholds of USC
The 2026 bands a dividend is charged across: the first €12,012, the next €16,688, the next €41,344, then the balance.
- Revenue: tax rate band
- Revenue: Tax rates, bands and reliefs charts
Standard rate cut-off points: €44,000 at 20% for a single person, €53,000 for married or civil partners with one income.
- Revenue: tax relief limits on pension contributions
- Revolut Business account plans
- Revolut Business Basic fees
- Revolut Ireland Premium fees
- Revolut Ireland Standard fees
- SEAI attic insulation grants
- SEAI DEAP software and methodology
- SEAI Electric Vehicle Home Charger Grant
- SEAI heat pump guidance
- SEAI Heat Pump System Grant
- SEAI home energy advice
- SEAI National BER Register - look up an existing certificate
- SEAI new simplified BER scale
- SEAI Solar Electricity Grant
- SEAI solar electricity guidance
- SEAI understand a BER
- SEAI wall insulation grants
- Sky Mobile Ireland plans and Roam Like Home
- Square Ireland pricing
- Stripe Ireland pricing
- Stripe Terminal Ireland
- SumUp Ireland pricing
- Tesco Mobile roaming and international rates
- Three Ireland June 2026 bill-pay price guide
- Vodafone Ireland roaming guidance
- Wise Ireland card fees