Before you begin
What the eight-year clock depends on
Deemed disposal is the part of Irish fund tax people most often get wrong: which years it reaches, what each charge is worked out on, and what happens to tax already paid. Budget 2027 changed the rate, and the checker prices each anniversary at the rate for the year it falls in. It also asks about the one case that can change the date entirely, a fund Revenue once confirmed was taxed like shares, and works out which year your first charge falls in.
Use the year you first bought, not the year you opened the account. The clock starts when units are acquired.
If you have a real transaction history and a charge coming, enter the purchases rather than describing the pattern. The actual purchases give the actual years, where a monthly approximation gives an average of them.
If you contribute monthly, the year above is the year the first contribution went in.
Enter what you originally paid for the units you still hold, from your purchase records. Tax already paid on a charge goes in its own field.
If an eight-year anniversary has already gone by, answer the question about past charges honestly. A date that has passed is not a charge that has been settled, and the result treats the two differently.
If you bought once and an anniversary has gone by, the value of the holding on that day is worth digging out. It is the only figure standing between an open question and a finished answer.
The answer to the last question is not obvious and it can change the date of your first charge. If your fund is US or European domiciled and you were told years ago that it was taxed like shares, it is probably yes.
Reading the answer
Reading your dates and charges
The year is the useful part. Where you self-assess, the tax falls due some time after the anniversary itself, and the result gives the date each charge is payable so you can see when the bill actually arrives.
The amount shown is the charge if the holding is worth today what it is worth now. The gain on the actual anniversary decides the real figure, so treat it as a marker rather than a bill.
If you contribute monthly, the result lists a charge for each year the rule reaches and the purchase behind it, so you can see what regular buying does to the shape of the bill.
If you are weighing a sale against waiting for an anniversary, the result gives the rate for each year, which is what that comparison turns on.
Read each charge beside the credit line for tax already paid before treating it as a cost. What that credit does decides what the rule really costs you, and the result works it through for your own figures.
Read the base cost and the credit lines together. Revenue's worked example in Appendix I(b) decides what a deemed disposal does to each, and it is not what most people assume, so the result follows it: a later gain and the credit against it are measured the way Revenue measures them.
A repeat anniversary showing nothing is not an error. The result explains, for your own figures, what a later anniversary is charged on and why it can come to nothing.
Common questions
Common deemed disposal questions
Nobody deducted anything. Do I have to do something about it?
It rests on how you hold the fund, which settles whether tax was taken for you or is yours to pay. The calculator gives each charge's due date and its place on the Form 11, and the treatment checker says who operates it.
Get a result above and the full answer opens here.
Do I owe tax even though I have not sold anything?
That is what the deemed disposal rule decides, and it turns on when you bought each holding and what kind of fund it is. The checker gives the date of your next charge, that year's rate and the charge on today's value.
Get a result above and the full answer opens here.
When does my first deemed disposal charge fall?
It turns on a transitional rule for funds Revenue once treated like shares, and whether yours is one of them. The calculator asks about share treatment and, where the rule applies, gives the year your first charge falls.
Get a result above and the full answer opens here.
Can I avoid it by selling first?
That depends on how a sale is taxed compared with a deemed disposal, and on the year it falls in. The checker gives each year's rate, so you can weigh a sale against waiting.
Get a result above and the full answer opens here.
I contribute monthly. Is that better or worse?
It hinges on how the rule treats each purchase you make. The calculator sets out the charge for every year and the purchase behind it, so you can see what regular buying does to your holding.
Get a result above and the full answer opens here.
Does a deemed disposal reset what I paid for the units?
Revenue's worked example and offshore funds manual settle it, for the units, the base cost and any tax already paid. The calculator follows both, measuring your next gain and the credit against it from what you paid and any tax charged.
Get a result above and the full answer opens here.
An anniversary went by years ago and I never did anything. What now?
The holding's value that year, and whether anyone operated the charge for you, decide what needs putting right. The calculator names the years and their deadlines, and works out from the value on each day whether a charge arose.
Get a result above and the full answer opens here.
Am I taxed twice on the same gain?
It rests on what becomes of a deemed disposal charge when you finally sell. The calculator shows each charge and how it counts against the tax on a sale, and the comparison shows what the rule costs your holding.
Get a result above and the full answer opens here.
Does the new Investment Account get rid of deemed disposal?
It comes down to how the account's rules, still being settled in Finance (No. 2) Bill 2026, apply to your money. The checkers say what the existing rules charge on your holding today, and the comparison states the account's announced terms.
Get a result above and the full answer opens here.