capital gains calculator
capital gains calculator
Example 1 - 30 day rule Example 2 - Basic Example 3 - Taper Relief Example 4 - Status Change
Example 5 - Same Day Trades Example 6 - Share Restructuring Example 7 - Rights Issues Example 8 - Transfer to Spouse

Example 1 - 30 day rule

A SELL trade is matched first with any BUY trades on the same day. Then with any BUY trades in the proceeding 30 days. If there are still unmatched shares then these are matched with the pool of BUY trades before the SELL date.

You can test out the following example by copying and pasting the trades into the calculator . The trade format and instructions can be viewed here

B 30/10/2020 VOD 20000 1.034 5.00 103.4
B 13/11/2020 BP. 48500 2.369 5.00 574.48
B 30/04/2021 VOD 4000 1.368 5.00 27.36
S 16/12/2022 BP. 1000 4.554 5.00 0.00
S 24/03/2023 VOD 1000 0.8858 5.00 0.00
S 08/08/2025 VOD 15500 0.8458 5.00 0.00
S 29/08/2025 VOD 3000 0.8836 5.00 0.00
S 05/09/2025 BP. 6420 4.1565 5.00 0.00
B 05/09/2025 VOD 12000 0.8786 5.00 52.72
S 12/09/2025 BP. 25000 4.2055 5.00 0.00
B 03/10/2025 BP. 4150 4.2375 5.00 87.93
B 10/10/2025 BP. 1000 4.205 5.00 21.03


Results

capital gains calculator example 1