Can I show prices and take payment in my own local currency if my suppliers quote me in a different one?

Yes, you can usually show your prices in the currency your customers are comfortable with, even when the supplier quotes you in a different one.

The software keeps a conversion rate for each currency you want to sell in, and it applies that rate to the supplier price before your customer sees it. You stay in control of how that rate is set and how the result is rounded, so the amounts on screen look tidy rather than odd. Your own markup or service fee is applied on top in the same way, so you are not converting anything by hand on every search.

Where you need to be careful is the difference between what your customer sees and what you are actually charged. The supplier will still bill you in its own currency, and the rate it uses on the day may not match the rate you displayed. On most bookings that gap is small, but it is real, and it is worth watching on expensive bookings and on refunds, where money can come back at a different rate than the one you sold at. Some suppliers also support only certain currencies, so the list you can offer depends on the supplier and on your plan.

On the payment side, the currency your customer can actually pay in depends on your payment gateway and the bank behind it, not on the portal. If your gateway settles in one currency only, the card will be charged in that currency and your customer's own bank may apply its own conversion on top. A good next step is to list the currencies you want to sell in, check which of them your suppliers and your gateway both support, and agree your conversion rate and rounding rules before you go live.