Whether you're entering an invoice using the Invoice Extraction feature, or manually entering, the sales taxes should be split out accordingly to the chart of accounts of the expenses. 

For example, if your sales tax is $68.49 on the invoice, and you're coding the invoice to Guest Supplies and Cleaning Supplies, the taxes should be split proportionally to the expenses.

Some vendors will provide the breakdown of each tax amount, and some enter as a lump sum and require you to calculate the tax amount per chart of account.

We do see some clients create a chart of account for sales taxes on invoices, but this is not the recommended accounting practice.