Tax value is different every day for the same ship

[dsmarine]

Just wanted to know if there is some bug here.
|9 09:10|Tax|paid 21.476 credits tax for Cave Reward Ship (18407069)|
|8 09:10|Tax|paid 20.714 credits tax for Cave Reward Ship (18407069)|
|7 09:10|Tax|paid 19.903 credits tax for Cave Reward Ship (18407069)|
|6 09:10|Tax|paid 19.927 credits tax for Cave Reward Ship (18407069)|

There was one day that it got lower (7)??

[Fallen_Angel]

Taxes are partially based on your reputation points.
More RP → Fewer taxes. Read more about it here

Taxes

Certain playfields have Taxes applied to them for various reasons. Playfields with Taxes: Please press M in-game and read the playfield description. You may need to scroll down to see Taxes. Typically, taxes are applied to the following playfields: ECC System, CSW, the 2 Peacekeepers and the Donor playfields. *If there are more than 200 cores on the Donor Planets. [taxes] How Taxes work: You have to pay taxes for all of your structures (BA, CV, HV, SV) that exist in the taxable pla…

[Shojis]

Taxes are also affected by your in game bank credits (not EB credits). The more in your bank the higher your taxes.

[dsmarine]

Thanks to both of you. There are too many details to keep in mind on this server… Next time I will check pda first