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Tool

Horse care calendar: plan upcoming appointments

The calendar adds an interval to the previous date. Its default intervals are under review. Use the schedule agreed with your vet or other practitioner for every item; the result does not determine treatment or competition eligibility.

Content checked in October 2026

Flu vaccination

A yearly booster is the usual UK rule; for FEI and many UK competitions it is within 6 months and 21 days. No competing within 7 days of a vaccination.

Tetanus vaccination
months

UK: usually every two years after the primary course; US (AAEP): annually. Your vet decides.

EHV (herpes) vaccination, if given
months
US core vaccines (EEE/WEE, West Nile, rabies), if in the US
months

AAEP: annually, in spring before mosquito season.

Worm egg count (FWEC / FEC)
months

Use the testing interval agreed with your vet; an egg count cannot exclude every parasite.

Tapeworm test (saliva or blood)
months

BHS: twice a year, spring and autumn.

Farrier
weeks

Usually every 4 to 6 weeks shod, 4 to 8 weeks barefoot.

Teeth
months

Under 5 and over 20: every six months.

What it does

  • Counts from the last time to the next time, for all routine care.
  • Contains editable default intervals that are still under review.
  • Puts anything overdue at the top and prints as an overview.

What it doesn’t do

  • Doesn’t know what your vet advises; that comes before the defaults.
  • Doesn’t replace the passport.
  • Doesn’t send reminders; keep the link or print the calendar.

What happens to your input

What you enter, including your horse’s name, stays in your browser and in the link, so you can keep or share the calendar. Nothing is sent to a server; we only count that the tool was used.

Where the defaults come from

Flu: in the UK an annual booster after the primary course of three; most competition bodies and the FEI want a booster every 6 months plus 21 days, and nothing within 7 days of competing. Tetanus: in the UK usually every two years; in the US the AAEP lists it as a core vaccine given annually, together with EEE/WEE, West Nile and rabies. EHV: only if you choose to, then every six months.

Parasite control: an egg count does not independently determine whether your horse needs treatment. Agree the test, timing and follow-up with your vet. Farrier and teeth: enter the intervals agreed with the practitioner.

Questions

My vet uses a different interval. What now?

Enter that interval; the calendar uses it. The default is only the usual picture.

Does the calendar get the competition rule right?

For flu, pick “UK annual” or “competing (FEI)”; the calendar then counts 12 months or 6 months + 21 days from the last vaccination. The competition day itself must be at least 7 days after the vaccination; you plan that yourself.

I’m in the US or Australia. Does this apply?

The counting works anywhere. Use the US core line for the AAEP vaccines; in Australia ask your vet about tetanus, strangles and, in Queensland and New South Wales, Hendra; the intervals differ.

Halster doesn’t diagnose. If you’re unsure about your horse’s health, call your vet.

In Halster

Add agreed visits to your horse’s diary

Enter the vet, farrier and dental visits you have actually arranged in Halster.

Test Halster for iPhone

Install the test version through TestFlight.

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