Anger at taxation, unemployment stuck at 11 percent and sluggish economic growth has sent thousands of people into the streets across the country over the past two months.
On Thursday, farmers blocked roads around Paris with tractors to protest against a so-called "eco-tax" on road freight and the planned sales tax.
Organisers of Sunday's protest say the EU-mandated rise of France's VAT to 20 percent as of January 1 - from the 7 percent reduced rate paid by equestrian centers today - will shut down a fifth of centers across France.
Some 6,000 jobs will be lost, they estimate, and 80,000 horses will have to be sent to slaughter.
"Riders, up in arms!" shouted protesters carrying signs reading "Sales tax at 20 percent - Death of Horses and Ponies".
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