Savings · Ireland

Saving in Ireland (2026): DIRT, State Savings & How Your Money Grows

Working out how your savings will grow in Ireland means dealing with one thing most calculators ignore: DIRT, the tax on deposit interest. Get the tax right and the picture changes — a "tax-free" State Savings product paying 2% can beat a bank account paying nearly 3%. Here's how Irish savings tax works and how to project real, after-tax growth.

DIRT: the 33% tax on deposit interest

Deposit Interest Retention Tax (DIRT) is deducted at source — automatically, before the interest reaches you — from savings held with Irish banks, credit unions and An Post. The rate is 33% (2026). So if a bank account pays €100 of interest, €33 goes to Revenue and you keep €67.

• It applies to ordinary deposit/savings accounts and most fixed-term deposits.
• It does not apply to current accounts that pay no interest, or to the DIRT-free products below.
• PRSI may also apply to deposit interest for some people, separately from DIRT.

The DIRT-free options: An Post State Savings

The Irish State Savings range, run by An Post for the National Treasury Management Agency, is completely DIRT-free — the return you're quoted is the return you keep:

• Savings Certificates and Savings Bonds — fixed-term, fixed-return, tax-free.
• National Solidarity Bonds — longer term, tax-free.
• Prize Bonds — no interest, but tax-free prize draws instead.

Because there's no DIRT, the comparison isn't apples to apples with a bank rate. A rule of thumb: a tax-free 2% is roughly equivalent to a taxable ~3% once 33% DIRT is taken off.

The over-65 exemption

If you (or your spouse/civil partner) are 65 or over, you can receive deposit interest without DIRT — provided your total income for the year is below the annual exemption limit. You claim this by completing a declaration with your financial institution. There's also an exemption for certain permanently incapacitated people.

How to project real, after-tax growth

The maths that matters is compound growth on the after-tax rate. To estimate it:

1. Take your headline rate (say 3%).
2. If the account is taxable, multiply the interest by 0.67 (after 33% DIRT) → an effective ~2%.
3. Compound that effective rate over your time horizon.

Why DIRT-free matters more than the headline rate

A 33% tax taken at source changes the comparison between products more than most savers expect. A bank account advertising 3% delivers roughly 2% after DIRT. A State Savings product advertising 2% delivers 2%, because there is no tax to take.

So the right comparison is never rate against rate — it is after-tax return against after-tax return. On that basis a tax-free 2% beats a taxable 2.9%.

Where DIRT does and does not apply

• Applies to deposit interest from Irish banks, credit unions and An Post deposit products, deducted automatically before you see it.
• Does not apply to An Post State Savings — Savings Certificates, Savings Bonds, National Solidarity Bonds and Prize Bonds are all DIRT-free.
• Does not apply to current accounts paying no interest.
• PRSI may apply separately to deposit interest for some people, on top of DIRT.

The over-65 exemption

If you or your spouse are 65 or over and your total income is below the annual exemption limit, you can receive deposit interest without DIRT. It is not automatic — you claim it by completing a declaration with your bank or credit union. There is a parallel exemption for certain permanently incapacitated people. Both are widely unclaimed.

Where savings fit against everything else

Cash savings sit at the bottom of the Irish efficiency ladder, and it is worth knowing the order before committing money:

1. Pension — relief at your marginal rate, tax-free growth, no exit tax.
2. State Savings — modest returns but genuinely tax-free.
3. Directly held shares — 33% CGT with an annual exemption and loss relief.
4. Deposit accounts — 33% DIRT on every euro of interest.
5. Funds and ETFs — 38% exit tax plus the eight-year deemed disposal, and no loss offset.

An emergency fund belongs in cash regardless of where it sits on that list — accessibility beats efficiency for money you may need next week.

Frequently asked questions

What is DIRT in Ireland?
Deposit Interest Retention Tax (DIRT) is a tax deducted at source from interest earned on savings with Irish banks, credit unions and An Post. The rate is 33% as of 2026. It is taken automatically before the interest reaches your account.

How can I earn savings interest without DIRT?
State Savings products from An Post (Savings Certificates, Savings Bonds, National Solidarity Bonds and Prize Bonds) are completely DIRT-free. People aged 65 or over may also be exempt if their total income is below the annual exemption limit, by completing a declaration.

How much will my savings grow in Ireland?
It depends on the rate and whether DIRT applies. On a taxable account, 33% of your interest is lost to DIRT, so a 3% bank account nets about 2% after tax. A DIRT-free State Savings product at 2% is therefore roughly equivalent to a 3% taxable account.

Related

• Compound interest calculator
• Emergency fund calculator
• State pension by country (incl. Ireland)

Since January 2026 there is a new entry at the top of that ladder for most employees — pension auto-enrolment.

Sources

• Revenue.ie — Deposit Interest Retention Tax (rate, exemptions)
• Citizens Information — DIRT and the over-65 exemption
• StateSavings.ie — DIRT-free State Savings products

Figures as of 2026 (DIRT 33%). Rates and exemption limits can change in the Budget — verify on revenue.ie and statesavings.ie. General information, not regulated financial advice.