I want to setup Odoo (V18.0) without a tax fiscalization package with correct tax rates applicable to my country. Reason for doing it this way is that I can continue to have a customized chart of accounts that my users are familiar with and I prevent confusion on tax rates that are not applicable.

 When I do this I get errors when trying to record vendor bills or customer invoices. Specific error I get is: Cannot find a chart of accounts for this company, You should configure it. Please go to Account Configuration. 

On the vendor or customer card under the accounting tab (Accounting entries section) I do not have the option to specify the accounts receivable/payable accounts which appear only when selecting a tax fiscalization package (which also introduces a bunch of general ledger accounts in my chart of accounts, tax rates and journals in my database which I do not need or want). I could go and get rid of the chart of account accounts/ journals/ tax rate I do not need but I get other errors as these are all linked (have not been able to delete some tax accounts as they are being used by the fiscalization package as defaults ... some i have been able to remap).

There must be a way to use your own chart of accounts and own tax rates and the vendor/ customer module without the above workaround. Any suggestions would be welcome.