Expense Types Tax Handling

For some of our expense types that are vatable supplies, we have created multiple expense types to correctly handle the VAT. For example:

Hotel accomodation with VAT receipt

Hotel accomodation without VAT receipt

Taxi with VAT receipt

Taxi without VAT receipt

With this approach, we have a very long list of expense types.

Our preference would be to only have one expense type but with a better way of managing the VAT where no VAT receipt was attached.

What are the options? Is the above the recommended approach or is there an alternate method?