Do you have anything on offer?
'Offerta' — 'of-FER-ta'. Stress on second syllable. Double 'f' — hold it slightly longer.
A smart opening question at any time of year. 'Offerta' (offer/special price) exists outside formal sale seasons and staff are happy to show you.
'In offerta' = on offer/on special price. 'Offerta' from 'offrire' (to offer). 'In saldo' = in the official sale season. 'In promozione' = on promotion. These have slightly different meanings.
Avete promozioni questa settimana?
Do you have any promotions this week?
'Promozione' = any time-limited discount, not just sale season
Cosa c'è in sconto oggi?
What is on discount today?
More direct — asking what's discounted right now
Avete pezzi di fine stagione?
Do you have end-of-season pieces?
Looking for seasonal clearance items
Italian retailers frequently run themed promotions — 'Black Friday' has arrived in Italy, as have 'Cyber Monday' deals online. Mid-season promotions are common in January and August outside the official sale period.