Receipts are compressed on your device before upload — a photo costs ~200 KB, not 3 MB.
JPEG, PNG, HEIC or PDF · several at once is fine · poor signal on site? Uploads wait and send themselves when you're back online. Click a receipt to view or download it.
Type the total from the receipt — subtotal and tax fill in at your region's rate. Edit the subtotal or tax if the receipt differs (tax-exempt items, tips); the total stays as entered.