The capital gains calculator making
it simple to enjoy your gains

Whether you were buying puts during the dot-com crash or you've just started index investing, simplecgt has got you covered.
Supported Formats

Popular brokers are supported out of the box

Export your transactions and get started immediately.

  • Degiro.
  • Interactive Brokers.
  • Trading 212.
  • E-Trade.
  • Morgan Stanley.
  • More coming soon!
Import Transactions

All your transactions in one place

Import your CSV or excel transaction files.

  • Many popular broker formats including DeGiro, Interactive Brokers, Trading 212 and Morgan Stanley Stockplan Connect are supported (many more coming soon!)
  • Otherwise create your own import format.
Irish CGT Calculation

Instantly calculate your Irish capital gains tax

Generate detailed and accurate capital gains calculations.

We take into ALL of your transactions, starting from the 1st one and programmatically applying the rules to each transaction:

  • Get a full breakdown of all your Gains.
  • Track and carry forward your Losses over the years.
  • Offset your gains with your Losses with your yearly €1270 Personal Exemption, transaction fees and costs.
  • Automatically identify 4 Week Rule (aka Bed and Breakfast aka Wash Sale).
  • Asses transactions on a FIFO basis (unless the 4 week rule applies).
  • Automatically fetch exchange rates to convert to € and fetch stock prices when needed.
  • Dealing with Stock Options or Employee Share Purchase Programmes (ESPP)? No proble, track and calculate your RTSO1 with ease.
  • Buying and Selling fractional shares? We have that covered.
  • Process stock splits correctly *.
* under development
Form 11 Companion

Guiding you through the process, one step at a time.

We breakdown each Section of the Form 11 and clearly outline which numbers go where.

  • Submit to Revenue in under 15 minutes!
  • Numbers can be used for other Revenue CGT forms too, like CG1, Form 12, Form 11s and more.
  • Automatically calcualte and popualte your RTSO1 forms.
Error Tracking

Find and correct issues before calculation

Avoid re-calculations with automatic validation of your transactions.

  • Duplicate transactions are flagged during import.
  • Missing transactions leading to negative balances are highlighted.
  • Track what calculation is sent to Revenue for alerts on transaction changes.