Yes! This can be enabled under the web interface under Settings > Site Settings > Taxes > Configure Taxes > Customized Tax > Tax Inclusive > Enable Consistent Pricing. This option will allow you to tax all your customers the same price irrespective of the tax rates applicable.

If you are on the updated tax settings then this can be done by navigating to Settings>>Configure Chargebee>>Taxes>>Manage Catalog Prices. When the catalog prices are inclusive of taxes, then the option, Display consistent checkout prices for all regions will be available.